September 17, 2014, 10:06:48 AM

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Messages - rs

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16
Third Party Manufacturers / Re: SIGMA 150-600!!
« on: September 05, 2014, 06:32:25 PM »
As for wanting constant f/5.6, I don't see that as important or even useful. Remember, the camera body tells the lens what aperture to use and the lens has to figure out how to do it.

Well every quant of light counts.

It´s not much but it´s still better.
And with that weight plus over the Tamron it would be a nice bonus.

But i guess there are reasons for not doing it. Who knows how much more it would weight than.

600/5.6 results in a 107mm clear aperture, same as 300/2.8. The filter size of both this lens and the 120-300 is 105mm. Therefore, the 120-300 f/2.8 can't reach 300mm or be f/2.8 at that focal length. I'm hoping that Sigma is honest about the focal length and aperture for this new lens. We'll see. FWIW, the Tamron uses 95mm filters, which is as small as possible for 600mm and f/6.3.

I really don't expect it to be as good as my 300 but I do expect it to be very good, probably better than the Tamron. More important is whether it can focus quickly and accurately enough to capture race cars and motorcycles. I don't expect to buy it before next spring since, by the time it'll likely be available, there will be snow on the ground around here. So there's lots of time for people to test it.
Most lenses aren't built to precise specifications produced by marketing departments - if a manufacturer decides they're going to enter the 300/2.8 market, why should it be 300.0000mm and have an aperture ratio if f2.80000? For a start off, f2.8 in itself is shorthand for the square root of 8. In other words 2.82827 if we round to 5 decimal places. Most engineering departments will work towards a general goal, but sticking to it 100% is a waste of money, engineering resources, and could result in additional optical compromises, not to mention increased weight, size and cost in the end product.

Just read the patents for new lenses. Not one of them reads as neat as the specs once they've been sterilised by the marketing department.

17
EOS-M / Re: Anything new on EOS-M3? How it may compare to A6000?
« on: September 04, 2014, 05:45:43 PM »
The chance that the M3 will be what people want is slim.
Canon will cripple it im pretty sure.

When you want a small system camera there are good choices right now.
That DPAF sensor of the 70D is just begging to be used in a mirrorless camera, and the EVF-DC1 is waiting for a second camera to connect up to. The groundwork for the EOS M3 has already been laid. Will Canon put the pieces together? And if they do, will they sell it outside of the US?

18
EOS Bodies / Re: Is Canon now two generations behind Nikon?
« on: September 04, 2014, 04:00:56 PM »
Why has this made it to page 30?
Because there is an extremely high correlation between Obsessive Compulsive Disorder and frequency of internet postings.
Take some OCD, coupled with a matter of life and death, plus a lack of humour.... throw in some raging testosterone and keep the whole mixture simmering over a troll baited flame.... Add DR for seasoning.... and you get enough posts to choke the server.
Don Haines
Posts: 3084
 ;)
And of those 3,084 posts, 3,083 have been cheerful, humorous, positive, constructive and/or peace-making. I'd say 3,084 were that way, but hey -- nobody's perfect.  :P
I was going to ask Mitch if he is experiencing Deja Moo... (The feeling that you have seen this bull before) :)
Unfocused: 2044 Posts. The only reason for posting this is to start one of those quote within a quote within a quote sequences that can look pretty cool when they get to about 20-30 quotes. Time to have some fun, demonstrate the absurdity of this thread and maybe break the Internet!
Neuroanatomist: just a few posts, really.
What? No one else wants to play?
I spy something with my little eye...
I can't, I am on a self imposed exile for a week or so. But, intriguingly enough, I have a friend coming to stay who has a D800 (shame it isn't an 810 or E though) and a 24-70 so I am hoping to do some comparison images for my own piece of mind.
What better to make of such a thread than a kaleidoscope....  :o
Good read to pass time... I wonder if the forum will eventually put a limit on how many levels you can quote, or run out of memory and crash...
Probably not—that's all just handled with CSS in your browser—but eventually it will probably get to the point where the innermost quoted message is only one character wide.  :D
That would be fun!
Not a Kaleidoscope, and not an Aneurysm, it's a Squirrel!
Really?
thank god...this will surely get this thread closed. please, please, please, please.....>.<
How many generations is this ?
It does get to the point that someone will grab his camera and snap a picture of this extensive semi-natural phenomenon that best resembles the great piramids of Egypt in 2D representation (or not so sexy airial photography).
By the way... that is one fine squirrel!  :o
It's funny how squirrels appear once there are enough nuts loose....
Did someone really just try to revive the topic on the pointless discussion it was about for 30 pages?  :) This is kind of fight fire with fire.... stop the bullshit with....  :o I kinda prefer piramids and kaleidoscopes. However, my ultimate goal would be to actually make it look like a squirrel  ;D
Let's not off topic too much otherwise the admin might lock it up. We are totally discussing on the topic. Canon two generations behind? Nah, wait till you see the dual pixel + dual sensitivity sensor is out. The patent regards to this is very interesting. This is the next gen. dual pixel sensor. They've managed to make the two half pixels having different FWC and sensitivity so it gives you high and low sensitivity at the same time without losing resolution. Just like human eye, rods and cones anyone?  ::) I am personally looking forward to this solution and how it compares with Sony's exmor.
Canon two generations behind? No. Two generations ago, Canon was two generations ahead. It took Nikon that long to catch up.
Let's stay focused here people (says "unfocused") We are starting to annoy the trolls. Yes!
perhaps we need nested squirrels to kill this thread...
Aren't there some rules about squirrels on this forum, regardless of whether they have a nest or not?  :o
Just Checking to see if this post makes the original one drop to 1-pixel wide. :P
Yeah! Even Jon is showing a sense of humor. There is still hope.
RLPhoto, were you upset that I put a Squirrel in your Kaleidoscope? Or that I didn't play by the standard rules of I Spy? (giving a hint before revealing the subject)
Still going? Even the squirrels are shaking their fists!

I think we may have completely swallowed the original post now. :P I don't even see it at all...

I think this thread has gone nuts

19
EOS Bodies / Re: Is Canon now two generations behind Nikon?
« on: September 04, 2014, 11:04:57 AM »
Why has this made it to page 30?

Because there is an extremely high correlation between Obsessive Compulsive Disorder and frequency of internet postings.

Take some OCD, coupled with a matter of life and death, plus a lack of humour.... throw in some raging testosterone and keep the whole mixture simmering over a troll baited flame.... Add DR for seasoning.... and you get enough posts to choke the server.

Don Haines
Posts: 3084

 ;)


And of those 3,084 posts, 3,083 have been cheerful, humorous, positive, constructive and/or peace-making. I'd say 3,084 were that way, but hey -- nobody's perfect.  :P

I was going to ask Mitch if he is experiencing Deja Moo... (The feeling that you have seen this bull before) :)

Unfocused: 2044 Posts. The only reason for posting this is to start one of those quote within a quote within a quote sequences that can look pretty cool when they get to about 20-30 quotes. Time to have some fun, demonstrate the absurdity of this thread and maybe break the Internet!

Neuroanatomist: just a few posts, really.

What? No one else wants to play?

I spy something with my little eye...

I can't, I am on a self imposed exile for a week or so. But, intriguingly enough, I have a friend coming to stay who has a D800 (shame it isn't an 810 or E though) and a 24-70 so I am hoping to do some comparison images for my own piece of mind.

What better to make of such a thread than a kaleidoscope....  :o

Good read to pass time... I wonder if the forum will eventually put a limit on how many levels you can quote, or run out of memory and crash...

Probably not—that's all just handled with CSS in your browser—but eventually it will probably get to the point where the innermost quoted message is only one character wide.  :D
That would be fun!

Not a Kaleidoscope, and not an Aneurysm, it's a Squirrel!
Really?

thank god...this will surely get this thread closed. please, please, please, please.....>.<

How many generations is this ?
It does get to the point that someone will grab his camera and snap a picture of this extensive semi-natural phenomenon that best resembles the great piramids of Egypt in 2D representation (or not so sexy airial photography).
By the way... that is one fine squirrel!  :o
It's funny how squirrels appear once there are enough nuts loose....
Did someone really just try to revive the topic on the pointless discussion it was about for 30 pages?  :) This is kind of fight fire with fire.... stop the bullshit with....  :o I kinda prefer piramids and kaleidoscopes. However, my ultimate goal would be to actually make it look like a squirrel  ;D
Let's not off topic too much otherwise the admin might lock it up. We are totally discussing on the topic. Canon two generations behind? Nah, wait till you see the dual pixel + dual sensitivity sensor is out. The patent regards to this is very interesting. This is the next gen. dual pixel sensor. They've managed to make the two half pixels having different FWC and sensitivity so it gives you high and low sensitivity at the same time without losing resolution. Just like human eye, rods and cones anyone?  ::) I am personally looking forward to this solution and how it compares with Sony's exmor.

Canon two generations behind? No. Two generations ago, Canon was two generations ahead. It took Nikon that long to catch up.
Let's stay focused here people (says "unfocused") We are starting to annoy the trolls. Yes!
perhaps we need nested squirrels to kill this thread...
Aren't there some rules about squirrels on this forum, regardless of whether they have a nest or not?  :o

20
The problems I think Sony would have is that firstly I'm not sure theres massive demand for resolution above the existing 36 MP and secondly its questionable how there current(and future) FE lens lineup would perform on such a camera as there are already serious issues with the wider lenses with 24/36 MP.

Honestly I'm starting to think that Sony might be in panic mode with the threat of the camera(not sensor) division being shutdown hanging over their heads such is the rate of new releases.

In terms of real demand for photographic work/photographic expression : I totally agree.

But for boosting around "I can 50 MPixel" (for 4x6" prints for the family album) it is well suited and this might be a personal demand to own something with the hightest number availble. Same thing with hp of cars or sizes of houses ...

The design of DSLR's, like bicycles, washing machines and pens, has already gone through various stages of development, reaching a point where almost any reasonably priced version is capable of doing 95% of what 95% of users could want. Advances from here, while welcome, are largely gimmicks for people who want every feature or the latest product. More MP, more dynamic range, higher burst rates, more intelligent AF and metering are just nice to have's which most users will never really need. A few will, many will want, but it is largely just a way of generating sales.

21
EOS-M / Re: Recommendations for lens to supplement EF-M 22mm?
« on: September 04, 2014, 05:19:50 AM »
EF-M 18-55 (on an EOS M) vs 40 (on a 60D):

http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=813&Camera=812&Sample=0&FLI=5&API=1&LensComp=810&CameraComp=736&SampleComp=0&FLIComp=0&APIComp=0

I can't find a similar example of the 50/1.8 on a crop camera to compare, but it will be significantly softer wide open, possibly about the same as the other two at f5.6.

The differentiating factor should be what focal length do you need? And how much sharpness do you need vs how narrow is the DoF you are after?

If narrow DoF isn't a main priority, the 18-55M wins hands down - just as sharp at the apertures it does, IS, and it zooms. If blurring the background is the main purpose of your second lens, the 50/1.8 should be the top of your priority list. A compromise between the two is the 40 - like the zoom its still very sharp at any aperture, with an in between performance for depth of field options.

22
Lenses / Re: I'm terrified of my EF 70-200 f/2.8 IS II
« on: September 04, 2014, 04:10:43 AM »
It's also possible to use the standard strap to carry such a lens more comfortably. Hang it off your shoulder instead of your neck, and have the camera the wrong around - so the prism is against your body instead of the back of the body. The lens will hang straight down then.

23
Third Party Manufacturers / Re: will the samsung NX1 steal the show?
« on: September 04, 2014, 02:35:54 AM »
No.

The question I want to know the answer to is who's going to be the first person to mount a great white on their smartphone via a metabones adapter and a Sony QX1?
OK, someone's already done it with sony lenses:

http://www.sonyalpharumors.com/this-is-how-weird-the-qx1-looks-with-huge-lenses/

24
Japanese rumors: As i heard from my Japanese girlfriends, the 50MP Sony is not the highlight. The highlight is, that sony is working on an curved sensor. This sensor could possibly be an little revolution on the sensor market. The image quality of the edges and non-center areas would be dramatically better, CAs and other optical problem would be reduced. And optically this curved sensor would rise the resolution in the edge areas.
Sony - (rumored!) - is working on new lenses that could be optimized on this new sensor. The lenses would be a lot cheaper to be produced (abberation correction would be not so difficult).
Nikon is interested in this technology too.
Yeah, that idea has been mentioned before, including official photos from such technology. Ideal for a permanently attached fixed focal length lens, such as an RX1 type camera or a smart phone. Or even a perfume bottle.

25
Third Party Manufacturers / Re: will the samsung NX1 steal the show?
« on: September 03, 2014, 03:24:36 PM »
No.

The question I want to know the answer to is who's going to be the first person to mount a great white on their smartphone via a metabones adapter and a Sony QX1?

26
EOS Bodies - For Stills / Re: Features seen in the past and absent today
« on: September 01, 2014, 07:09:58 AM »
I wonder why canon packed older cameras with some very useful features that are totally absent in modern cameras. Here I refer to the Canon EOS 1D released in 2001 vs modern professional canon cameras.

I refer strictly to:

1/16,000 shutter speed
X-sync speed 1/500

I would think its to do with it being APS, smaller, lighter shutter, less distance to travel etc. Not on modern pro APS now due to cost / usage considerations I would think.
The 1D was an APS-H body with an electronic shutter.

Quick bit of research; also used CCD rather than CMOS which allowed the use of an electronic shutter. So as CMOS replaced CDD those features were lost.
Yeah, Nikon had some CCD cameras with fast sync speeds, such as the 1/500th D40.

27
EOS Bodies - For Stills / Re: 7DMk II or the 1DMk IV
« on: September 01, 2014, 04:07:12 AM »
A 2x TC and any f5.6 lens will not AF on any body (unless using live view). Whichever way you look at it, the lack of AF and IS, the slow aperture and very long focal length will make hand holding return a very low keeper rate, even with the most skilled photographer behind it.

Hand held requirements include functioning AF (preferably fully functional for BIF, so f5.6), some form of IS (mode 3 is great for BIF), and a lens which is not only long and bright, but light. Lots of compromises. The best setups require support of some sort and deep pockets.

28
EOS Bodies - For Stills / Re: Features seen in the past and absent today
« on: September 01, 2014, 03:57:22 AM »
I wonder why canon packed older cameras with some very useful features that are totally absent in modern cameras. Here I refer to the Canon EOS 1D released in 2001 vs modern professional canon cameras.

I refer strictly to:

1/16,000 shutter speed
X-sync speed 1/500

I would think its to do with it being APS, smaller, lighter shutter, less distance to travel etc. Not on modern pro APS now due to cost / usage considerations I would think.
The 1D was an APS-H body with an electronic shutter.

29
I agree that there is absolutely nothing unethical about disabling features in firmware on lower priced models. The research that went into developing those features costs money, so if you'd like to use them, pay for them. Would you also find it unethical for a software company to make you pay for a license, when all it takes to unlock full functionality is typing in a serial number?
It's standard practice in many industries. For instance, 15 years ago Volvo found it was cheaper to build all their cars with central locking, and then disable that feature through software on the cheaper models than to design, engineer, test and produce a whole new locking system for the cheaper models.

30
Lenses / Re: New Lens Information for Photokina
« on: August 29, 2014, 09:28:52 AM »
Yes, F2.8 doesn't make any sense. Why don't I use the F3.5 on the kit lens? The difference is negligible. I'll consider buying it if it's F2
Size. If it truly is a pancake, it'll be a much nicer size for the 100D/SL1 than an 18-55
If they can make an F2 for the M, there's no reason why they cannot do the same for EF-S
The 44mm flange distance and 24mm focal length already makes for plenty of complexity to meet the size requirements of a pancake lens. Throw into the retrofocus mix a relatively large aperture, and you've got something even harder to pull off. The M mount with its 18mm flange distance doesn't have such issues.

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