February 24, 2018, 09:26:20 AM

Author Topic: Kickstarter: The Universal Lens Cap by KUVRD  (Read 11418 times)

KUVRD

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #45 on: December 13, 2017, 11:31:00 AM »
Will this fit a 500/4? (I know the size but wanted to ask anyway!), also could someone do a drop test of a 500 and 600mm for me please??  :-*

Hey! So the 500mm f/4 has the following dimensions;

Dimensions (DxL) Approx. 5.75 x 15.08" (146 x 383 mm)

Our Universal Lens Cap stretches to 150mm, so yes it does fit the 500! However, the Diameter of the 600 is 167mm which is 17mm greater than what we've ever tried to stretch it. For now, I'm going to say 'no' on the 600 but definitely 'yes' on the 500mm! :)

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #45 on: December 13, 2017, 11:31:00 AM »

mnclayshooter

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #46 on: December 13, 2017, 11:37:02 AM »
  • Dew point issues/Vapor Barrier
  • Sandpaper
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That pretty well sums it up for me on this product. 

Pull!... click... crap!  Lemme try it again...
Pull!  click... boom... crap! Lemme try it again...
Definition of insanity?

KUVRD

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #47 on: December 13, 2017, 11:55:21 AM »
Big nod and hats off to KUVRD.

We've been piling on the abuse and I give them credit for being good-natured about it. A welcome contrast to a certain other filter maker who took great offense at the comments on this forum.

When this hits the streets I may buy one simply because they are good sports.

That is what I'm talking about! Thank you for that mentioning that! A lot of the comments had really great insights and have helped us to better communicate with potential buyers about the features and benefits of the Universal Lens Cap! I know we're not here to solve world hunger and we totally get that our product isn't for everyone. With that said, we feel we've helped resolve a lot some inconveniences with the Universal Lens Cap and based on how many people have backed us thus far, we see that we are helping some photographers and that our product is a benefit! Again, thank you for your last comment. We'll definitely keep our eye on this article as it has been a way to get a good laugh in the morning and show us how to better market our product! I mean come on "Magnum" as the name for the largest size of the Universal Lens Cap?? Gosh that's good. hahaha

KUVRD

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #48 on: December 13, 2017, 12:03:34 PM »
Does anybody else feel that the bounce in the second GIF looks very odd and should be way higher, even if you factor in some energy loss from the (thin) layer of rubber which cushions the fall? I'm trying hard not to put on my tinfoil hat here, but I can't shake off the feeling that either this was shot in a high gravity environment of about 2G (lol), or the image has simply been tampered with.
*ducks and runs*

Hey!That's a great viewpoint, one we didn't even think about! To be honest, it was the high-gravity environment... haha. No, I'm kidding. I'm not sure why exactly it didn't bounce more... we didn't tamper the images or footage at all... but I assume that because both lenses were dropped from the height of a hip (which was about 1ft above the top of the viewfinder of the camera), the lens on the left has its backend hit slightly before its frontend making it bounce right out of the shot, where the lens with the ULC dropped and hit right on the corner, absorbing most of the bounce by virtue of having no where for the inertia and potential energy to go except right into the corner that hit the ground.. that's MY guess. We didn't mess with the footage at all and I'm no physicist, but my first thought would be that! Hopefully that helps answer your question :)

ahsanford

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #49 on: December 13, 2017, 12:06:03 PM »
To the KUVRD designer/spox here, first and foremost, thanks for coming on.  I design products for a living myself (in a very different field), and I fully appreciate what it means to face a peanut gallery of skeptics / potential customers, and we all appreciate you answering questions here. 

That said, I've aggregated a list of pros/cons for this from this thread that may or may not be true pros or true cons.  It's a hip shot of why this idea might be great and why it might not be.

Unless I am missing a crushing unmet need that is not enumerated here, the Cons are both far more numerous and impactful than the Pros unless you are a very niche need shooter (e.g. guy/gal who changes lenses... while paddling on an ocean Kayak?  Color Run reportage specialist?  Gallagher's personal performance photog?  Pro paintball shooter?). 

Please whittle down my misconceptions on the Cons list, for they can't all be so.  I'm sure you vetted some of these potential drawbacks to either minimize/mitigate/eliminate their impact.  Please share that experience here to start to thaw this skeptic (and others here, I'm sure) into a potential customer.

But without a systematic rebuttal of this quickly spitballed list of glaring downsides, one would logically come to the conclusion that this idea is simultaneously slower / less efficient / less effective than the bush league plastic caps that do not have this rap sheet of potential concerns.  In short, the big sexy killer app with your idea undoes 6-8 things that we count on that plastic caps address perfectly well today.
 
Thx
 
- A
« Last Edit: December 13, 2017, 12:11:14 PM by ahsanford »

KUVRD

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #50 on: December 13, 2017, 03:04:27 PM »
To the KUVRD designer/spox here, first and foremost, thanks for coming on.  I design products for a living myself (in a very different field), and I fully appreciate what it means to face a peanut gallery of skeptics / potential customers, and we all appreciate you answering questions here. 

That said, I've aggregated a list of pros/cons for this from this thread that may or may not be true pros or true cons.  It's a hip shot of why this idea might be great and why it might not be.

Unless I am missing a crushing unmet need that is not enumerated here, the Cons are both far more numerous and impactful than the Pros unless you are a very niche need shooter (e.g. guy/gal who changes lenses... while paddling on an ocean Kayak?  Color Run reportage specialist?  Gallagher's personal performance photog?  Pro paintball shooter?). 

Please whittle down my misconceptions on the Cons list, for they can't all be so.  I'm sure you vetted some of these potential drawbacks to either minimize/mitigate/eliminate their impact.  Please share that experience here to start to thaw this skeptic (and others here, I'm sure) into a potential customer.

But without a systematic rebuttal of this quickly spitballed list of glaring downsides, one would logically come to the conclusion that this idea is simultaneously slower / less efficient / less effective than the bush league plastic caps that do not have this rap sheet of potential concerns.  In short, the big sexy killer app with your idea undoes 6-8 things that we count on that plastic caps address perfectly well today.
 
Thx
 
- A

Hey, thanks for reaching out! Hopefully I can respond to the cons you’ve listed in a way that helps everyone see where we’re coming from. In the end, regardless if the Universal Lens Cap is a home-run product and solves a bunch of issues or is a short-lived fad, the product is $30 per Universal Lens Cap… you get a second one free for sharing on your social media (making it $15 per ULC), it comes with a Life Time Warranty and a free 30-day Money Back Guarantee from the day you receive it. We’re not here to screw people or steal their hard earned money. This isn’t a do or die purchase. This will not solve world hunger or fix every problem every photographer has had with Lens Caps. We fully admit that our product is NOT FOR EVERYONE and hope that through our transparency, our reasonable price, our warranty, our guarantee, and our efforts at portraying what the Universal Lens Cap DOES DO is enticing enough and establishes enough trust in a potential buyer to willingly spend less than one would on a full tank of gas to have the Universal Lens Cap.

Anyways, with that said, to respond to your CONS:

Two hands required to put it on. You’re right. It does take two hands to put the ULC on… about a 5 second delay from putting on a Traditional Lens Cap… the reason we don’t see this as a CON is because whenever someone is putting on a lens cap on a lens is either at the end of the photoshoot, when you’re packing everything up, you’re switching lenses or you’re just quickly taking one or two photos and then putting the ULC back on. While it's just as easy and quick to pull the ULC off of a lens as it is in removing a traditional lens cap, we find that it's good it takes longer to consciously stretch the ULC onto a lens, knowing that those extra seconds of effort provide peace of mind later when leaving, your camera is around your neck swaying about as you walk or feeling your lenses are protected and the lens caps are staying put.

Does not coexist with hoods at all; no reversing hoods possible, more space in bag wasted on hood storage. For all the photographers who use hoods, this is not an issue. This is NOT a CON. It still stretches over a lens hood in reverse or when it’s locked into place at the end of lens. You are right that it does not work if you put the ULC on first and THEN the lens hood. It will not grab onto the filter ring. But, you can still put the lens hood over the ULC. It just wouldn’t be locked into place. Meaning it would not take up more space.

Lenses will take up more space in your bag. Lenses will NOT take up more space in your bag. In fact, there is so much cushion and empty space around lenses that even if the Universal Lens Cap took up more space, it would be taking up space that could otherwise NOT be utilized. You can stack one or multiple ULCs onto a lens in the camera bag, providing even more protection within your bag but that is the only point I could see someone arguing with taking up more space.

Surely takes up more space in your pocket than a plastic lens cap, and the material is for more likely to collect lint/dust when you do. It doesn’t take up more space relative to a plastic lens cap. Also, a lot of female photographers shoot in dresses with no pockets. You can stick the ULC in any pocket, in your shoe, in your wallet, your bra, stretch it over ANOTHER lens you have in your bag, etc.  You can clean off the Universal Lens Cap simply by running water on it and drying it off.

Peeling it off exposes the inside / glass-facing side of it, and that material will surely collect more lint/dust than a hard plastic cap surface. This is user-error, not a product error. I’ve shot at Monument Valley, Banff, Jasper and Glacier National Parks and BURIED lenses in dirt and sand. These lenses are STILL used today with no internal damage because I simply wash the ULC off with water before putting them back onto the lenses.

Slower to use than a traditional lens cap; people who ‘stop and pop’ and then put their camera away will hate the added time needed to use this. Well, I can’t argue subjectivity. If you say people who ‘stop and pop’ will "HATE THE ADDED TIME NEEDED TO USE THIS” then okay. I could state that maybe the peace of mind that comes with knowing your lenses are better protected and you’re not going to LOSE your lens cap from falling off is worth the extra 5 seconds and therefore 'stop and pop' photographers would like it, but again, to rebuttal subjectivity is difficult and not really effective.

Will likely reposition / alter your variable ND or CPL ring orientation each time you use it. NEVER in my life have I ever heard of a photographer who literally pulls out their camera and just takes a shot…. Photographers are ALWAYS adjusting knobs, camera settings, lenses etc. because of light, subject proximity, motion, etc. In addition, we’ve stretched a Universal Lens Cap onto a lens, moved it around and then taken it off 115 times in a row, check periodically to see if the focusing ring or zoom ring change and the end result was that the focus ring was off focus by a few degrees. NOT enough of a PRO or a CON to place it on one side or the other.

Masks the true size/shape of the lens in your bag, making lenses harder to identify. haha, okay this was kind of a funny one. I don’t know about you, but I know of only three people that have more than 5 lenses… and camera gear is so frequently used and so intimately cared for that each photographer not only knows their gear, but literally shapes and graphs their camera bags and cases to have their camera gear and lenses fit in certain spots… besides that, the shapes of each lens are relatively distinguishable… It's pretty easy to recognize the shape differences between a 70-200, a 35mm, a 24-70mm and a 85mm.. and say you can’t recognize which lens you’re grabbing…. you loose what, 10 seconds to figure it out? So, haha, unless you're totally unfamiliar with your own camera bag, you can’t recognize the difference between your own camera lenses and where you put them in your own bag and you're shooting some moment that cannot be captured just 10 seconds later, then yes, this is a con.  ;)

Stickier than plastic caps = Can’t clean it with air. When I used to use traditional lens cap and clean them with air, the only way I did it was by blowing on it, which just replaces what was on the traditional lens cap with bacteria and my spit so naturally I follow up with wiping it off with my shirt sleeve... which times collected dust and lint. I haven’t clocked the time to do that, but my gut feels it would take just as long as running the ULC under some water and then drying it off.

More Flexible than plastic caps = could flex and touch glass elements. Yes, you’re right. It COULD flex to then possibly touch glass elements. You’re right. Again, I can’t rebuttal assumptions and possible case scenarios. So yes, in some cases, the elasticity of the ULC might actually touch the glass elements.

Externally focusing lenses with protruding inner barrels (85 f/1.2L II, 50 f/1.4, etc.) may get a pre-load/push from using this… We’ve tested this on other such camera lenses like this and this hasn’t been the case… but even if it was, I don’t understand what the issue is… Would you mind clarifying the “CON” that would come from this?

Removal is not a binary on/off think like a plastic cap; you may get partial removal that leads to you touching the glass to finish removing it. That's true, it MIGHT lead to someone to touching the glass. It is correct in saying that removal is not a binary on/off thing like a plastic cap. The ULC takes two hands to put it on and one had to remove it. It’s still a one step process in both putting it on and removing it, it just takes two hands to do so when putting it on.

Like I stated at the beginning, we’re not trying to scam anyone, nor trick anyone into buying our product. We feel that a frequent issue photographers deal with is that they’re constantly loosing their lens caps and tired of having to have specific lens caps for specific lenses. With the Universal Lens Cap, the ULC will not fall off and thus get lost and it fits 99.99998% of DSLR and FULL-FRAME MIRRORLESS Camera Lenses. It also acts as an aversion to mother nature and her elements and function as both a front and rear lens cap. But just like any new invention, there is always going to be something wrong about it, some improvements that need to be made, etc. Our hope is that by accepting the fact that the Universal Lens Cap isn’t the end-all-be-all solution to lens caps, we can begin to focus on the solutions that it provides… and if not, and we're still hung up on the inconveniences that the ULC creates, then don’t buy it! haha.

ahsanford

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #51 on: December 13, 2017, 03:40:44 PM »
Hey, thanks for reaching out!

Huge respect for a (wow) thoughtful reply.

We've had other designers come on here and simply dismiss concerns with a 'trust me, it's awesome' and they promptly get taken apart.  Not so with your comments, which are appreciated.

- A

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #51 on: December 13, 2017, 03:40:44 PM »

neuroanatomist

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #52 on: December 13, 2017, 03:45:30 PM »
Anyways, with that said, to respond to your CONS:

Thanks for responding in detail.  Unfortunately, it seems to me that a few of your responses ignore common real-world use cases.  For example...


Quote
Two hands required to put it on. You’re right. It does take two hands to put the ULC on… about a 5 second delay from putting on a Traditional Lens Cap… the reason we don’t see this as a CON is because whenever someone is putting on a lens cap on a lens is either at the end of the photoshoot, when you’re packing everything up, you’re switching lenses or you’re just quickly taking one or two photos and then putting the ULC back on.

When switching lenses in an active shoot, the difference between less than a second to slap a traditional lens cap on vs. the extra 5 seconds apply a ULC can matter...a lot.  Especially since it requires two hands to put on the ULC, meaning I’d have to set the camera down.  Normally, I can ‘fully’ swap lenses in 3-4 seconds (one mounted lens and a second lens with both caps on and hood reversed to the second lens mounted with hood in place and prior lens with both caps on and hood reversed), and the camera never leaves my hand.  The ULC would least triple that time.

Quote
Peeling it off exposes the inside / glass-facing side of it, and that material will surely collect more lint/dust than a hard plastic cap surface. This is user-error, not a product error. I’ve shot at Monument Valley, Banff, Jasper and Glacier National Parks and BURIED lenses in dirt and sand. These lenses are STILL used today with no internal damage because I simply wash the ULC off with water before putting them back onto the lenses.

How much time does that add to switching lenses?  I’m guessing a lot more than 5 seconds...


Quote
Stickier than plastic caps = Can’t clean it with air. When I used to use traditional lens cap and clean them with air, the only way I did it was by blowing on it, which just replaces what was on the traditional lens cap with bacteria and my spit so naturally I follow up with wiping it off with my shirt sleeve... which times collected dust and lint. I haven’t clocked the time to do that, but my gut feels it would take just as long as running the ULC under some water and then drying it off.

Your gut is really, really wrong on this one.  A wipe of the inner surface of a traditional lens cap on a shirt sleeve can’t take more than a second, or two if you want to be really thorough.  If you honestly believe that you can rinse and dry the interior of a cylindrical piece of silicone/rubber in 1-2 seconds, you’re deluding yourself in the extreme.  It would take longer than that just to get water running over the silicone (unless you were standing in a thunderstorm or under a waterfall...in which case, drying it would be somewhat problematic).


Quote
More Flexible than plastic caps = could flex and touch glass elements. Yes, you’re right. It COULD flex to then possibly touch glass elements. You’re right. Again, I can’t rebuttal assumptions and possible case scenarios. So yes, in some cases, the elasticity of the ULC might actually touch the glass elements.

In some cases...it might actually?  Although some lenses have recessed front elements, for most lenses, the front element is fairly close to the filter threads (which are generally the front-most part of the lens).  With those typical lenses, any mild, focused pressure on the front of the covered lens would certainly result in the ULC contacting the glass.  In some cases, like the 11-24 and TS-E 17 (which you earlier suggested was a suitable lens for the ULC), the front element is bulbous and would be in continual contact with the ULC.  Moreover, if there is a front filter on a lens, the distance between the glass and the front of the filter mount is usually less than a millimeter, and in that case, contact of the ULC with the filter would be frequent or continuous.  Far different than a traditional, rigid lens cap.

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ahsanford

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #53 on: December 13, 2017, 03:45:50 PM »
Externally focusing lenses with protruding inner barrels (85 f/1.2L II, 50 f/1.4, etc.) may get a pre-load/push from using this… We’ve tested this on other such camera lenses like this and this hasn’t been the case… but even if it was, I don’t understand what the issue is… Would you mind clarifying the “CON” that would come from this?

Some lenses, esp. the 50 f/1.4 USM, stick out and can be a bit fragile if you push on the front element and the inner barrel is pushed forward.  See attached from LensTests.com -- at MFD (or anything approaching MFD), the inner barrel sticks out and force (downward in this shot) forces the inner barrel to retract in a friction-y fragile sort of way. 

I suppose you could avoid pushing KUVRD on all the way, but would you know if you did?

- A 

KUVRD

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #54 on: December 13, 2017, 03:59:47 PM »
Anyways, with that said, to respond to your CONS:

Thanks for responding in detail.  Unfortunately, it seems to me that a few of your responses ignore common real-world use cases.  For example...


Quote
Two hands required to put it on. You’re right. It does take two hands to put the ULC on… about a 5 second delay from putting on a Traditional Lens Cap… the reason we don’t see this as a CON is because whenever someone is putting on a lens cap on a lens is either at the end of the photoshoot, when you’re packing everything up, you’re switching lenses or you’re just quickly taking one or two photos and then putting the ULC back on.

When switching lenses in an active shoot, the difference between less than a second to slap a traditional lens cap on vs. the extra 5 seconds apply a ULC can matter...a lot.  Especially since it requires two hands to put on the ULC, meaning I’d have to set the camera down.  Normally, I can ‘fully’ swap lenses in 3-4 seconds (one mounted lens and a second lens with both caps on and hood reversed to the second lens mounted with hood in place and prior lens with both caps on and hood reversed), and the camera never leaves my hand.  The ULC would least triple that time.

Quote
Peeling it off exposes the inside / glass-facing side of it, and that material will surely collect more lint/dust than a hard plastic cap surface. This is user-error, not a product error. I’ve shot at Monument Valley, Banff, Jasper and Glacier National Parks and BURIED lenses in dirt and sand. These lenses are STILL used today with no internal damage because I simply wash the ULC off with water before putting them back onto the lenses.

How much time does that add to switching lenses?  I’m guessing a lot more than 5 seconds...


Quote
Stickier than plastic caps = Can’t clean it with air. When I used to use traditional lens cap and clean them with air, the only way I did it was by blowing on it, which just replaces what was on the traditional lens cap with bacteria and my spit so naturally I follow up with wiping it off with my shirt sleeve... which times collected dust and lint. I haven’t clocked the time to do that, but my gut feels it would take just as long as running the ULC under some water and then drying it off.

Your gut is really, really wrong on this one.  A wipe of the inner surface of a traditional lens cap on a shirt sleeve can’t take more than a second, or two if you want to be really thorough.  If you honestly believe that you can rinse and dry the interior of a cylindrical piece of silicone/rubber in 1-2 seconds, you’re deluding yourself in the extreme.  It would take longer than that just to get water running over the silicone (unless you were standing in a thunderstorm or under a waterfall...in which case, drying it would be somewhat problematic).


Quote
More Flexible than plastic caps = could flex and touch glass elements. Yes, you’re right. It COULD flex to then possibly touch glass elements. You’re right. Again, I can’t rebuttal assumptions and possible case scenarios. So yes, in some cases, the elasticity of the ULC might actually touch the glass elements.

In some cases...it might actually?  Although some lenses have recessed front elements, for most lenses, the front element is fairly close to the filter threads (which are generally the front-most part of the lens).  With those typical lenses, any mild, focused pressure on the front of the covered lens would certainly result in the ULC contacting the glass.  In some cases, like the 11-24 and TS-E 17 (which you earlier suggested was a suitable lens for the ULC), the front element is bulbous and would be in continual contact with the ULC.  Moreover, if there is a front filter on a lens, the distance between the glass and the front of the filter mount is usually less than a millimeter, and in that case, contact of the ULC with the filter would be frequent or continuous.  Far different than a traditional, rigid lens cap.

Hey! I don't want you to think I'm not going to respond... I'm just heading out to lunch with the wife and then have to run a couple of errands and finish a couple of meetings... After all that, I WILL RESPOND! :) :)

ahsanford

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #55 on: December 13, 2017, 04:01:02 PM »
Neuro's underscoring my concerns pretty well.

I'll particularly call out this idea being problematic for:

  • The stop and pop enthusiast shooter.  A lot of people shoot street, candids, and travel this way.  Unless I'm leaving my camera out in a general walkabout shooting situation (usually with a hood on, attached to a BR strap, etc.), the flow is:  open satchel --> draw --> un-cap --> frame --> shoot --> cap --> holster in bag --> move on.  That flow would be dramatically slowed down by this idea.

  • Not identifying lenses in the bag --> my 16-35 f/4L and 24-70 f/4L would just look like two 77mm diameter black beer cans in this setup.  Other lens pairs (adjacent FL primes comes to mind) have similar footprints and would be difficult to ascertain here.  The risk is not the added few seconds -- the risk is taking the wrong lens with you as you don't bring everything you own to every shoot!

  • Stuff sticking to the inside requiring a rinse out and air dry:  that's fine to do at home, but what do you do if you get your KUVRD gunked in the field?  One could rinse it out easily enough, but particulate free drying in the field is a non-starter -- few of us carry chamois cloths in the field, and using a shirt / cloth will leave dust and residue inside the cap.  And just rinsing it and shaking it out and then using it is tantamount to putting your front element in a humidor.  Strikes me as a problematic limitation.

  • I have a fundamental problem squaring how something designed to protect a front element could quite easily come into direct contact with the thing it was intended to protect.  Hard caps never have this problem, right?

- A

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #56 on: December 13, 2017, 04:01:25 PM »
Thanks for coming on and replying to so many posts.  It's pretty awesome to see a product designer answer questions.

Does not coexist with hoods at all; no reversing hoods possible, more space in bag wasted on hood storage. For all the photographers who use hoods, this is not an issue. This is NOT a CON. It still stretches over a lens hood in reverse or when it’s locked into place at the end of lens. You are right that it does not work if you put the ULC on first and THEN the lens hood. It will not grab onto the filter ring. But, you can still put the lens hood over the ULC. It just wouldn’t be locked into place. Meaning it would not take up more space.

I think the easiest way to overcome this and objections about the time to put on or take off a lens cap is to have these in camera stores, were someone like me can just try it for themselves.  It's really hard for me to imagine the efficacy of a this with a hood, but it's entirely possible that I'm just not imagining it right.

Also, many Canon lens hoods have a button to unlock (facing outwards).  Wouldn't this concept interfere with that?

I also have a hard time imagining this being very helpful in being protective on some reversed hoods (or more protective than a regular lens cap), like 24-70 f/4, which has quite a bit larger outer diameter than the lens, but is quite shallow.
 

Will likely reposition / alter your variable ND or CPL ring orientation each time you use it. NEVER in my life have I ever heard of a photographer who literally pulls out their camera and just takes a shot…. Photographers are ALWAYS adjusting knobs, camera settings, lenses etc. because of light, subject proximity, motion, etc. In addition, we’ve stretched a Universal Lens Cap onto a lens, moved it around and then taken it off 115 times in a row, check periodically to see if the focusing ring or zoom ring change and the end result was that the focus ring was off focus by a few degrees. NOT enough of a PRO or a CON to place it on one side or the other.

The difference, though, is on a Variable ND or CPL, you set it to taste for the purpose, and may run around a whole bunch (like, while hiking) and you may not need to fuss with the filter again for a while (if you're taking similar types of shots).  Unlike a dial or knob, you can't see if it moved on you, and there's no lock.  Especially if you're outdoors, between stretches, you might want to pop a lens cap on to prevent your filter from getting scratched (since those can be super expensive), or even dirty (since some can also be a pain to clean).

On the other hand, the outer diameter of the filter is usually slightly smaller than the lens barrel, so perhaps it won't get moved much, because contact with the filter ring is minimal? 

Masks the true size/shape of the lens in your bag, making lenses harder to identify. haha, okay this was kind of a funny one. I don’t know about you, but I know of only three people that have more than 5 lenses…

Without trying to sound confrontational, I think there are a lot of people participating on this forum who have a whole lot more than 5 lenses :)  I know I do, and some of them that I may carry around at the same time do have similar dimensions.   Maybe a solution is to offer colored, patterned, or otherwise marked ones in the future.


For myself, it's hard to imagine this as a solution for me.  I know we're talking about only few seconds here and there, but I it doesn't seem like there are enough advantages to justify that.  However, I respect that you guys are trying to make something new and innovative, and if I see this in a camera store, I'll give it a fair shake!

Thanks much for your time.

ahsanford

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #57 on: December 13, 2017, 04:02:30 PM »
Hey! I don't want you to think I'm not going to respond... I'm just heading out to lunch with the wife and then have to run a couple of errands and finish a couple of meetings... After all that, I WILL RESPOND! :) :)

Nonsense, you are clearly not that person.  We're not going anywhere. 

Don't consider this stone-throwing so much as a design review.  KUVRD's 2.0 is going to be much better.   ;)

- A

canon rumors FORUM

Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #57 on: December 13, 2017, 04:02:30 PM »

slclick

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #58 on: December 13, 2017, 04:04:44 PM »
I think he found us after  I gave him a heads up on FB that there's a tough crowd here for him to check out. Who knew it would turn into such a market research love fest!
soul stealing magic boxes and black tubes

ahsanford

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Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #59 on: December 13, 2017, 04:08:53 PM »
I think he found us after  I gave him a heads up on FB that there's a tough crowd here for him to check out. Who knew it would turn into such a market research love fest!

With design work, I've found that if one is honest with the limitations of their own work, it can improve.

If one is bull-headed and takes grave umbrage to folks calling his baby ugly, it's hard to improve because your ears/mind are closed.

The KUVRD person here is clearly the former and not the latter, so I welcome improving the concept here. 

Don't get me wrong, stubbornness is useful for steamrolling through barriers and overcoming tough obstacles, or if you have a crystal clear marketing message you don't want to deviate from, but stubbornness is a serious liability in optimizing designs with a wide spread of different user groups.  In those cases, it literally takes a village, and in this case, we the photogs of the world are that village.

- A

canon rumors FORUM

Re: Kickstarter: The Universal Lens Cap by KUVRD
« Reply #59 on: December 13, 2017, 04:08:53 PM »