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Messages - revup67

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496
Speedlites, Printers, Accessories / Re: Main difference in ND filter?
« on: February 13, 2012, 12:48:54 AM »
As mentioned everyone has their personal opinion on these filters and brands.  I've learned recently that even a high quality filter can present issues.  Recently I had thought to get the Light Craft Fader that claimed to offer 2-10 stops as a variable ND (their newest HD series).  In my opinion this was a gross exaggeration. I posted a few test shows in the lens forum for the 16-35 mkii lens in comparison to a Hoya ND400 9 stop filter on a 72mm lens since Hoya doesn't make this filter for an 82mm.  The Fader couldn't touch the uniformity nor the 9 stop range of the Hoya ND400 so the fader went back.  I replaced it with a B&W 82mm 10 stopper and a Hoya HD Pro ND64 (6 stopper).  As the author above me writes..dont' go cheap.  They are correct.do your research.  I do stick with specific Hoya & Marumi's and B&W..I've never had an issue.  To further illustrate check out this UV filter review..note the winner and how Tiffen's were dead last in degrading the final image and note how a specific "cheaper" Hoya beat out a more expensive Hoya in the results (note I didn't say "cheap" I said "cheaper" http://www.lenstip.com/113.1-article-UV_filters_test.html note line #4 for the summary.


497
EOS Bodies - For Stills / Re: Image effects with EOS 7D possible ?
« on: February 12, 2012, 12:39:01 PM »
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Wow.  Innavigable just got redefined.  That site have an index?

That site needs a bit of help.  I research elsewhere then call their 800 to see if they have it.  Excellent top notch service however.

498
EOS Bodies - For Stills / Re: Image effects with EOS 7D possible ?
« on: February 11, 2012, 07:27:42 PM »
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Another way to put it is that the cyclist occupies a given area of the frame for only say 1/20th of a second. The rest of the exposure (2.95 seconds) is filled by only the background. And since both the background and the cyclist are illuminated by the same light and nothing more, the background wins.

David that was very well stated. I did a 3 second exposure (not posted) but the cyclist was nowhere to be found (as Neuro suggests) it was as if I taken a photo with no one in it.  Indeed "the background wins".  Seems this whole project is hindering on a much brighter light source against a darker background to create such a trail or as Gryphon mentioned an injection of bikers for the whole 3 seconds or reverting to a panning scenario.

tt  - when you reference strobe I believe you are suggesting using the multi flash feature?  that's actually a cool idea with the flash light..never thought of that one.

neuro -
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The effect you've 'discovered' is the main reason I have 10-stop ND filters - shooting architecture.  Interesting architecture is often found in urban settings with lots of foot traffic, or the architecture itself is a tourist attraction with lots of bystanders.  The long exposures with a 10-stop ND effectively blur out/eliminate pedestrians, passing cars, etc.
- yes indeed I bumped into this effect by accident and a great idea for different uses of the 10 stopper.

499
EOS Bodies - For Stills / Re: Image effects with EOS 7D possible ?
« on: February 11, 2012, 03:56:23 PM »
Gryphon, first thanks for all the assistance.  Just to be clear my statement of the ND eliminating daylight was merely an abridged summary of
Quote
it's enabling you to use a longer shutter speed than would otherwise be possible, on a bright day even using ISO100 and f/22 you might still be getting 1/4 for a correct exposure which wouldn't be enough to blur running water..

The water example I provided was at  F32, ISO 100 and 1/3s not far off from what was deemed as not enough to blur running water

In either case, it seems it all boils down to the contrast of ambient light and/or injection of a constant flow of new subjects into he same scene.

500
EOS Bodies - For Stills / Re: Image effects with EOS 7D possible ?
« on: February 11, 2012, 02:40:37 PM »
(Neuro - I just got the 82mm 10 stopper yesterday - thanks for that great suggestion just waiting to use it.)

The example I mention with the headlights at night was merely to define an example.  Sorry if I didn't clearly state, I was looking to achieve a similar effect under a different set of circumstances and believe it is possible

Perhaps I can re-emphasize as I've realized in essence I (may) already be doing this.  Let's take water flow during daylight we've all seen this before (example attached to be clear).  We all know we can get that nice blur with an ND in eliminating daylight, I'm trying to achieve the same effect with a cyclist as in this example I have shot.  Night vs. day doesn't seem to matter.  It would seem a)speed of subject and b)length of subject would be key factors I believe.  Open to additional thoughts or putting me back on the right track in case I am now off course :)

501
Canon EF Prime Lenses / Re: Canon EF 600mm f/4 L IS USM
« on: February 11, 2012, 12:55:01 PM »
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Revup: You eventually get used to it after a couple outings of hurting arms, but just remember, always lift the lens, not the camera.  It'll rip the mount right out of the body if you let it dangle.
So true...  After a short while I got used to the 400mm (5.6 though)..it was an initial shocker but as you say you get used to it.  When mounted, I always grab it by the neck.

502
EOS Bodies - For Stills / Image effects with EOS 7D possible ?
« on: February 11, 2012, 12:24:53 PM »
While on a heavily shaded dirt hiking path the other day, I loaded my 15-85mm on the 7D with a tripod and had approximately 60 feet of dirt trail in the view finder at 18mm.   I was attempting to create a "blurred trailing effect" from a cyclist but failed.  Much like a stream of car lights at night when you slow the shutter speed down.  I was using a nine stop Hoya ND400 filter with the lens and had the lens open for about 3 seconds.  The exposure was decent despite the heavy contrast however the cyclist didn't appear in the image as he rode the 60 feet of trail.  It was as if the event never happened.  I finally got another cyclist after shortening the shutter speed to about 1/10th (see attached image) but he was a short blur within the 70 feet and not the effect I was aiming for.

Perhaps this is not do able in shaded daylight but if anyone has any ideas that would be great.  Perhaps my 580 EX II using multi flash would resolve this?  Open to any thoughts, this is new ground for me.

Actual 1/10s image attached

503
Macro / Re: blue flower
« on: February 11, 2012, 12:02:53 PM »
Interesting to find this topic..just found a "blue flower" (Plumbago auriculata) the other day - taken with 100mm 2.8 L Macro lens just before dark (tripod)


Plumbago auriculata in bloom on hiking trail (Feb 9, 2012) by Revup67, on Flickr

504
Quote
at least you can return it, let us know how you go with the search for a replacement
it seems to be the superzoom of variable ND's
i wonder if the dark end offering is any better the 9 to 12 stop one

OK here's what I decided and did get a full refund of $320:  I acquired the Marumi Super DHG Polarizer $100, the Hoya ND64 HD Pro Digital ($80) and I bit the big bullet today and bought (Per Neuro's recommendation) the B&W 10 Stopper for $226 through filterconnection.  Andrea there is such a pleasant individual to work with.  Just prior I had bought the Cokin graduation P121 Series (L,S,M) plus a ring adapter and holder.  She offered to take them back and offer a credit of 95% of the purchase price toward toward the 10 stopper..how could I refuse..those Cokins were a bit disappointing anyway with the purple hue when stacking more than one.  I've lost my only set of graduated but gained a set of great ND's..I think it was worth the swap.  Staying away from the Fader types then across the board..just not for my taste and also hiding my wallet :)

505
Landscape / Re: Post Your Best Landscapes
« on: February 08, 2012, 12:12:59 AM »
Vista Overlook hiking trail in O'Neill Park southern California.  EOS 7D and EF-S 15-85mm with Marumi CR Polarizer approx 1500 feet elevation, natural water pool


O'Neill Park - AIred KABC-TV 6pm News Los Angeles 2-6-12 by Revup67, on Flickr

506
Canon EF Prime Lenses / Re: Canon EF 600mm f/4 L IS USM
« on: February 07, 2012, 03:24:14 AM »
In preparation of getting the 400mm I also obtained a membership at the local gym.  I wonder what I'd have to do to carry this lens around.  No matter what the pain level it looks like its worth it.

Spectacular photos..wow especially the BIF's.

507
Lenses / Re: What UWA options do I have with 77mm Filter size?
« on: February 07, 2012, 03:17:37 AM »
For further lens comparisons (center, mid and edges) see http://www.the-digital-picture.com]Tools/ISO12233 [url]http://www.the-digital-picture.com[/url] choose Tools / ISO12233 and compare any two lenses IQ.

I know you are looking for 77mmm but if you do the above and checkout the difference between the 16-35 mki and Mkii (if considering)- it is night an day.  Perhaps you are relegated to 77mm due to an investment in filters (?)though not sure.  If so, I hear you.  Spent quite a bit on various 72mm's filters but it would seem it all boils down to IQ I would assume, so I surrendered and got the 16-35mkii.  My gripe about the 82mm is scarcity and higher cost - perhaps that is your concern..I couldn't agree more

508
Lenses / Re: Three New Lenses~~~
« on: February 07, 2012, 03:00:00 AM »
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I wouldnt say that strange, the 16-35 2.8 went up from 77mm to 82mm in the mk2 didnt it?


I am told the reason for this is to improve the outer edge quality of the photos.  The original 16-35 mki was rather soft on its edges and due to the gripes, Canon redesigned it this was the way to improve the IQ.   It is significantly better see Tools/ISO12233 http://www.the-digital-picture.com The downside is try and find an ND filter above ND64..(6 stop) good luck.  The 10 stopper is only sold at 1 locale the Filter Connection and is over $225.  Pretty much any decent filter for an 82mm is gonna run you a pretty penny and they are not as plentiful are my findings.

509
Canon EF Zoom Lenses / Re: Canon Fisheye EF 8-15mm f/4L USM
« on: February 07, 2012, 02:44:56 AM »
I've heard of a tree trunk but not a tree butt

510
EOS Bodies - For Stills / Re: Is Canon 7D a good choice for my next DSLR
« on: February 07, 2012, 01:49:57 AM »
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The 17-55 2.8 is also a nice choice for fast glass but for me personally, I would not spend $1K for a lens that I could only use on a crop sensor body unless you never plan on going FF


yes, I would agree with this as well.  one lens that pried me away from this theory was the 15-85 EF-S lens, well under a grand and razor sharp even compared to the 16-35 mkii (I own both).  See for yourself at http://www.the-digital-picture.com Choose Tools, ISO 12233 then do a compare with the 15-85 and the 16-35mkii..note the edges about the same.  It's quite possibly one of the best (if not the best) EF-S lenses canon makes.  I use it as my main walk around lens and you can see from my arsenal (in sig.) I do have a decent selection to choose from.  My alt. choice if I had it would be the 24-105 just too duplicitous at the moment.  if I dump the 7D then the 15-85 goes with it and "hello" to the 24-105.


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