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Messages - thatcherk1

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1
I think what I have a hard time understanding is the fact that they think they'll make more money from having the two different models: X vs C. Yes there are many medium-end filmmakers who will pay the price premium, and Canon will make some money off them to be sure. However there are many many more low-end filmmakers who have a 5D, GH2, etc. that won't pay 13,000 for a 4k camera, but would pay $6800 for it. It's not so big a leap in price for those who make a smaller amount of money shooting. I'd think that the profit they could make off of a $6800 camera that shoots 4k would far exceed that of a $13000 camera. Because at $1300 they are lining up to be just another one of many competitors. If they could hit that 7k price point they could be the leader of the market again.

You might think that a low-end also as a 1Dx owner I thought for a little bit about getting a 1Dc, but I just couldn't justify the cost at the time. But I would like 4k SLR very much because I shoot wedding photography and videos and an all-in-one camera would be awesome. And now that I've forke over 7k on thee 1Dx I might be willing to fork over another 6k for a firmware update. There will be many like me who will change their mind after the fact, and would pay for a firmware update, but wouldn't pay another $1300 for an entirely new camera.

Just some thoughts. Canon can do what they want. I'm a capitalist. I price my weddi work like a capitalist. I just fail to see how they would make more money at the higher price point with this kind of market. But I'm a photographer not an economist.

2
i have vignetting on my 5dmk2 on my 60d zilch there will be vignetting on full frame i do use a filter in the rain or near salt water/sand but apart from that REMOVE THE FILTER DO NOT PUT CHEAP GLASS IN FRONT OF SUCH A BEAUTIFUL L LENS.

bornshooter,
You must shoot a different kind of subject that I do.  I don't have the luxury of shooting without filters while producing the images that I do.  75% of my photography involves filters of some kind, whether it's a UV/Clear when shooting out the window of an airplane, long exposures with ND to smooth water out, polarizer to add contrast to natural light.  I shoot landscapes that get blown up big.  The nature of my photography demands filtration.  Do you know that not everyone shoots the same kind of subjects that you do, that for you it's easy to say "don't shoot with filters unless necessary".  Then there are others like myself who find it necessary to use filters in most situations.

Do you also know that tiffen and schneider glass is of the same optical grade that your precious L lens is made out of?  So it's not an issue of "cheap glass".  Cheap glass also has nothing to do with this vignetting problem.  It's the rim mount that is causing it.  Clear glass doesn't make lenses vignette.  Do you know why?  It's clear!

And to head off those who want to scream "lee" or "cokin".  I understand.  I use a lee system whenever possible.  But it's not always possible with what I shoot.

And the bottom line of this thread is that Canon should not be making $2400 long zoom lenses that accept threaded filters, but cause additional vignetting, especially since the old version of the lens didn't.

3
Yes my hood is on correctly...well the hood wasn't on.  Same difference.

Interesting that both of our lenses seem to produce the same vignetting with and without a filter.  I'm curious if all copies of this lens are like this or if it's just some.  If all are like this, then I'll just have to live with the problem, do my own lens profile, maybe do one with and without a filter.  And when possible, use 4x4 filters.

However if it seems only a handful are like this, then I can try and demand to canon to send me a replacement.  And hopefully they'll listen, because it appears to me to be pretty bad that a $2400 long zoom lens would vignette with a single filter on.

4
EOS Bodies / Re: Error 80 - 5D Mark III
« on: April 08, 2012, 01:12:55 AM »
I have the same problem, several lenses, several memory cards, several batteries, all canon batteries.  It happened on one camera, I returned it, and the second (and current) one I have does the problem too.

Let me know if anyone finds out a solution.

5
EOS Bodies / Re: 5D III error 80 and failure to release shutter
« on: April 08, 2012, 01:11:59 AM »
I have the same problem, several lenses, several memory cards, several batteries, all canon batteries.  It happened on one camera, I returned it, and the second (and current) one I have does the problem too.

Let me know if anyone finds out a solution.

6
I would encourage you to compare to the vignetting measurements made at the-digital-picture.com.


I don't think that the-digital-picture.com does a comparison with and without a filter revealing any added vignetting caused by a filter.

Also, another thing that is frustrating is that when I apply vignette correction from the lens profiles either in-camera, or in Lightroom, the vignetting is completely removed.  Sometimes it even appears over-corrected.  None of my lenses have ever shown any noticable vignetting after applying adobe's or canon's profiles to the lenses, with exception to this lens.  And it's surprising to me that both the Canon and Adobe fails to correct this.  That leads me to believe that there is a problem with this lens and that it's not the norm.  If it was the norm, then Canon and Adobe would have accounted for this corner vignetting in their profile-creation.

And I know that worst case scenario I can create my own profile for the lens.  However like I said, right now I'm trying to get info from others who own and use this lens to see if I can get samples where this problem is not happening.

epsiloneri, do you by chance have this lens and would be willing to shoot a couple tests for me?

7
Thanks everyone so far for the thoughts and advice.

I'm pretty sure the filter is not the problem.  I've used about 10 different clear, UV, ND, pola filters from B+W, Hoya, Heliopan, etc. and all of them give the same results.  I also have used all of these filters on my 16-35, 17-55, 24-70, 70-200mk1, 24mm, 85mm with no added vignetting.

As for only using a filter when necessary, the problem is that I shoot out the window of an airplane on a regular basis and need protection.  I also use ND and Pola for my landscapes all the time.  And to those who think I should use 4x4 filters, I climb mountains.  I prefer not to take the added weight when simple 77mm filters aught to work perfectly.

When it comes down to it though the issue is that this lens should not be doing this.  And it's under warranty.  So whether or not there's a workaround with larger filters, thinner filters, don't use filters, what I'm trying to do is get opinions from others to see if this is a common occurrence.  And to see if anyone can send me samples with this lens/camera combination where it isn't a problem.

Still haven't gotten any samples.  Anyone out there up for testing their gear and sending me the samples?

8
What UV filter are you using?  The non filter one looks quite normal IMO.

The UV is a hoya, but I encountered this problem on all of my filters from heliopan to hoya to tiffen and beyond.  Clear, UV, pola, ND, they all do it.  As stated in my first post, the filter is standard size.

The non-filter jpg looks normal if it hadn't been corrected yet, but on all my other lenses, when in camera, or adobe lens correction is applied it gets rid of all of the vignetting, from corner to corner.

9
Hello all,

I have a 5D mkII and mkIII and a 70-200 2.8IS mkII.
I noticed recently that it seems to have some extra vignetting in the corners at certain focal lengths (seeminly beyond typical vignetting on FF camera).  70mm seems normal, 100mm seems the worst where the vignette has the sharpest edge.  135mm and 200mm it's apparent, but the fade is softer, still bad though in my opinion.  I find that putting on filters makes it worse.  I put on a thin, normal sized clear 77mm filter on and the vignette intensifies.  I've never had one clear filter add vignetting of any kind, especially when zooming in.

I can't find any samples of from my old mark I where there is this problem.  And I've rented 3 different copies of the mark II (3 different serial numbers) where I've also not seen the problem.

I have sent this lens to Canon 3 times in the past month.  Each time I get it back, they tell me that it's normal vignetting and the lens is up to spec.  It's currently still at Canon and I'm battling it out with the engineer trying to convince him there really is a problem with this copy.

I use this lens primarily for landscape work, where I have to mess with contrast in a hazy city.  Adding contrast obviously magnifies the problem.  But like I said, I've never encountered the problem on 3 other copies of the lens, nor my old mark I under boosted contrast situations.

When I apply lens vignette correction in both LR3 and LR4 I get this weird halo effect where the lense's natural vignetting seems to be taken out, but this extra vignetting remains.  When I spit out .jpgs from my 5DIII I don't get the halo effect quite as much, but the corners are still clearly vignetting.
I understand that software lens correction both by Adobe and Canon are not perfect, but on every other 70-200, or any other lens I've used I get much much better results than I am with this lens.

I sent in to Canon a series of tests from this lens on my 5DIII with different focal lengths, both with and without the clear filter.  All tests were done at f5.6 where vignetting should be fairly mellow to begin with, and it's the stop I shoot at the most.  I also put focus at infinite where the problem seemed worse, and where I typically use my lens.

MY QUESTIONS FOR YOU:

BELOW are the two .jpgs of the lens at 100mm f5.6 focus:infinite on 5Diii with in-camera vignette removal applied, one with a clear filter, one without.  Picture Style is standard with contrast bumped to max.
Does this seem typical for most of you?  Do you experience this kind of vignetting even after in-camera removal?
Am I crazy and these images are just fine?  BELOW are also links to the RAW files for these .jpgs where you can see them without vignette removal and with contrast at Adobe's standard.

ALSO, would anyone be willing to replicate my tests with their own 5D, either markII or markIII and their 70-200 2.8IS mkII?  If so, here was my setup:
-Tripod shooting large, white posterboard with direct sunlight.
-100mm, f5.6, focus:infinite, evaluative meetering with no compensation (so the white posterboard turned out grey)
-Can you do a test with and without a standard clear or UV filter.
-Feel free to do 70mm, 135mm, and 200mm as well.
-And can you email the RAW results:
thatcher@thatcherphoto.net

I'm not typically super critical of my gear.  I only am making a stink to canon and now here because I saw the bad results in some of my recent landscapes.  I don't want to have to carefully add a grad in Lightroom every time the problem shows up in a real photograph.

And as a side note, I haven't shot with a crop camera for a while.  So I'm not comparing to what it looks like compared to a crop frame camera, where there is less vignetting overall.

And please don't tell me that I need to stop obsessing with my gear and should just go outside and shoot.  This is a problem that has come up in real situations, and I'm trying to remedy the problem with Canon, or get convinced by some of you who can do the test yourselves and show me that I'm out of my mind and there is no problem.


5DIII/100mm/f5.6/focus:infinity/Standard Picture Style with contrast up all the way/in-camera vign. removal turned on
WITH FILTER:


5DIII/100mm/f5.6/focus:infinity/Standard Picture Style with contrast up all the way/in-camera vign. removal turned on
WITHOUT FILTER:


RAW VERSIONS---
WITH FILTER:
http://dl.dropbox.com/u/2077993/70200vignette/TKA_0085.dng

WITHOUT FILTER:
http://dl.dropbox.com/u/2077993/70200vignette/TKA_0086.dng

Thanks,
Thatcher
thatcher@thatcherphoto.net
thatcherkelley.com

10
EOS Bodies / Re: Delivered 5Dmk3 Units Awesome vs Has problems
« on: March 27, 2012, 08:44:25 PM »
the first day I had ERR 80 come up twice.  Also about 30% of the time that I turned the camera on, the first shot had massively screwed up colors.  I talked to Canon and they said it was their first call with a problem, and that I should return it.  So I get my replacement tomorrow by 10:30 AM.

11
EOS Bodies - For Stills / Re: 5Diii pink picture problem
« on: March 25, 2012, 04:24:17 PM »
Good to know I'm not alone.  I've not returned mine yet.  I kinda wanna wait to see if a lot of others have the problem and it's a firmware problem, or universal problem.  I hate having to return things.

I was doing some tests and got it to mess up the image for me some of the time.  If I turn the camera on quickly and take a shot, or if it turns itself off on it's own and I wake it up with the shutter and take a shot really quick, I sometimes get that problem with pink images.  It's always been just the first shot, and it's only when I take a shot really quickly after turning on the camera, and even then it's only sometimes when I do that.  One time it gave me a weird "predator" (the movie) effect where everything looked posterized.  I use Transcend CF card and an eye-fi x2 pro card.  I can't remember for sure, but I think it still did it when I took the eye-fi card out and only shot raw to CF, but I'm not entirely sure.  There was a string of a few minutes where I could get it to do it every time.  Now I can't get it to do it.  If I recall, it might have been sitting in the sun and was warm when I got it to shoot the pink shot.  Again, not entirely sure though.

I'll keep testing.  Maybe you can look at your pink shots and see if they were the first shot when you turned the camera on.

Oh and to clarify, the problem showed up on the camera screen, and on the CF raw file, and the SD jpg file.  And it showed up in Lightroom4, and in DPP.

I have a feeling it's that the camera will sometimes release the shutter to take a picture before the processor is fully ready to process the image.

12
EOS Bodies - For Stills / Re: 5Diii pink picture problem
« on: March 23, 2012, 03:36:52 PM »
Not a bad idea.

Maybe the camera was in instagram mode.  I'll have to check that.  Didn't know the 5D could do instagram effects in-camera.  What a great deal!

13
EOS Bodies - For Stills / Re: 5Diii pink picture problem
« on: March 23, 2012, 03:31:29 PM »
No, this was taken in sunlight on the street.  You can see the black bar near the top of the frame and then a seemingly normal image above that a little bit.


Here is a link to the .cr2 that was taken 1 second later, which appears normal.
http://dl.dropbox.com/u/2077993/A12_0163.CR2

14
EOS Bodies - For Stills / 5Diii pink picture problem
« on: March 23, 2012, 03:03:18 PM »
I was shooting some tests with my 5D just now and one of the shots I took has an extreme pink to it (except at the top of the frame) see below.  This was the only shot that did this.  None of the other shots had this problem.  I was shooting RAW to CF, and JPG to SD card.  It was pink in both RAW and JPG.  Here is a compressed jpg version:


and here is a link to the original untouched .cr2:
http://dl.dropbox.com/u/2077993/A12_0162.CR2


Anyone else having weird things like this happening?

15
Yeah it's a bummer.  I bought the sigma because most reviews I read suggested that as long as there were no focus issues, the image quality at 1.4 beats the canon at 1.4.  I didn't even buy it as the "cheap" option.  I might be regretting the decision now.  Don't know though.

Hopefully I'll be able to test it side by side with my 5Dii later.

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