Mark III back to canon...

Started Apr 1, 2008 | Discussions
JKovack Forum Member • Posts: 60
Mark III back to canon...

ive had nothing but amazing results with this body (markIII, blue dot, 1.1.3) until i got into very bright direct sunlight... then the AF is all over the place.... the indoor, higher iso, and flash photography is amazing... ive got a very very high keep rate on the pics.....

i shot my first motorcycle race of the year in virginia, 65-70 degrees out.. bright sunlight, and i was very disappointed with it to say the least..... out of 5500 frames or so, there are maybe 100 i would call "great" at 100%.... everything else was pretty soft, and quite a few completely out of focus...

here are a few 100% crops of some of the real obvious problem shots....

100% crop
300 F2.8L (non IS) with 1.4xII (420mm)
1/800th, F7.1, iso160

100% crop
300 F2.8L (non IS)
1/1000th, F5.6, iso100

100% crop
300 F2.8L (non IS) with 1.4xII (420mm)
1/800th, F7.1, iso160

i dropped the body and all my lenses off at a canon service facility today along with a CD of shots... so we'll see how it is when it comes back.

PhotoKhan Forum Pro • Posts: 11,658
Re: Mark III back to canon...

Exactly the kind of look I got from a 70-200 f2.8L IS series that prompted my 1DMKIII second visit to Canon.

I am so glad you posted this...I am going to print them right away and present them to my Canon center if they try and come up with any lens-related excuse.

I am still waiting to pick mine up again. It is "strike two" for them and I am glad I built such a strong case by means of some judicious exchange of registered mail.

If my camera is not fixed this time, I will grant them the 3rd opportunity (as contemplated by law over here) and, if things will still not be fixed, I will them pack the camera and send it send it back by registred mail with a formal request to have it exchanged

PK

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OP JKovack Forum Member • Posts: 60
Re: Mark III back to canon...

go for it, feel free to snag them... i might do the same to yours.

this is the first trip to canon with it.. its performed beyond my expectations up until now.. but racing photography is very important... so i hope thye get it right..

if not, i dont know what im going to do? ive too much invested in glass to jump ship to nikon... or wait.. and wait more on this situation?

OP JKovack Forum Member • Posts: 60
Re: Mark III back to canon...

also, just a note... the focusing seems to hit or miss....

it does get some great shots..... but no where close for my liking...

PhotoKhan Forum Pro • Posts: 11,658
Re: Mark III back to canon...

Oh yes, definitely...when this baby gets its act together, it just simply rocks. That is why these problems are even more painful to see or hear about.

The first time around mine went in as a precautionary measure, since I had not experienced any major problems. It was only the case that, as a whole, the camera's AF just didn't perform "au par" with the rest of this wonderful piece of photographic engineering.

I also was afraid that it might show up later, out of warranty, when I would add some really fast/long lenses to my collection, since my s/n was listed as a problematic one.

Even after coming back from the fix, this was the only series that came out this way (although I remember a particular instance when another, SSAF shot was "fishy" but I did not kept it, unfortunately).

However, as far as I am concerned and after all this AF problems non-sense, it only as to behave like this once for me to lose faith in having it perform reliably in any future, truly crucial situation.

You (and others) really should do what I've outlined here, some months ago:

http://forums.dpreview.com/forums/read.asp?forum=1032&message=25899155

I am glad I did it since, now, I can feel relaxed knowing that all my bases are covered.

PK
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Bartek Senior Member • Posts: 1,408
Re: Mark III back to canon...

looks pretty bad, and to me it looks like kind of vibration or halo not necessarily bad focus itself but rather it's a side effect of some other problem as it has been discussed on FM forums already (strange and strong halo)

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Steven Noyes Forum Pro • Posts: 12,382
Just a note on #3. User error there...

You had your IS set to mode 1 and not mode 2. That in the double-imaging.

Steven

maljo@inreach.com Veteran Member • Posts: 8,060
Same here. But what makes you think Canon...

can fix it?

maljo

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orlandoom Senior Member • Posts: 1,126
#2 also seems like user error.

why wide open f5.6 and iso100 on a sunny day without IS on the lens. To me that is asking for out of focus shots.
don.

skinsfanca Regular Member • Posts: 101
on the other hand

why do you assume they won't be able to? why assume the negative? I guess it does allow for 50 billion more threads on people's unfounded guesses and opinions as to what or when.....

Gravitytoy Forum Member • Posts: 81
Mine is back at Canon too

I had the exact same experience as you using the camera during a critical sports shoot. As the art director was looking over my shoulder, I had to cringe as I attempted to explain why some of the shots were soft. As Murphy would have it, some of the best action shots in terms of composition were the ones that the camera fell down on... Searching around the image yielded no useful information on where the camera decided to focus... Only that the entire image was out and soft. and this is at 1/5000 shutter!.. really wierd. In low light, it was spot on almost 100% of the time.

Hopefully it will come back working better. Let me know how your dilemma plays out.

-Rich

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superblue Contributing Member • Posts: 739
Re: Mark III back to canon...

I feel for you :o(( I really hope Canon can help out soon with the "bright light" problem.

Martin

jerryk Veteran Member • Posts: 6,628
Any filters?

Just curious.

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Scott Larson Veteran Member • Posts: 6,978
Re: #2 also seems like user error.

orlandoom wrote:

why wide open f5.6 and iso100 on a sunny day without IS on the lens.
To me that is asking for out of focus shots.

Shooting wide open increases the shutter speed.

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Necip
Necip Senior Member • Posts: 1,004
Consider this

This to me is clearly air turbulance over the hot track. Just to demonstrate the effect try it for yourselves. Compare shots taken using a telephoto lens on something sharp through a window in the distance, then try again after opening the window to induce a few turbulances from the temperature difference from the room to the outside. I think it will be obvious when you try how much it can affects apparent focus. The thing is this is an unpredictable effect under normal shooting conditions especially with telephoto lens use.

Unfourtunately every oof shot one takes with a 1dmkIII is scrutinised these days. If this short was taken with any other camera one would just delete the shot and move on.

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Scott Larson Veteran Member • Posts: 6,978
Re: Consider this

Necip wrote:

This to me is clearly air turbulance over the hot track.

Reducing tracking "sensitivity" will reduce this problem, or at least it does with the Mark IIn. The camera should continue to try to track the subject through the shifting air.

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Necip
Necip Senior Member • Posts: 1,004
Re: Consider this

You obviously haven't tried my test. Please try it. It has nothing to do with the camera focusing ability. No camera can focus on something if the conditions are blurred as in this case you can see the varying levels of oof in the shot. The camera did the best it could. Try the test. Try also leaving the focal point as in the closed window state by switching to manual then open the window. See the effects! If there is enough temperature difference between the warmer room and outside you might not even be able to get the cam to get a focus lock even. With any camera!
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cdryall Regular Member • Posts: 184
Re: Consider this

Not sure about the water temperature though????

Given I live in a desert just cancelled my 1DIII order with 42nd St Photo and will wait for a 5d2 rather - hope by then the hot conditions AF aspect resolved...

When they (1DIII) are good they are really good - sigh ;-(
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Necip
Necip Senior Member • Posts: 1,004
Re: Consider this

Not sure I understand what there the water temperature comes into this debate but. I think if you are nervous of the 1dmkIII and the full frame appeals then it sounds like a better way to go. I bought the 1dmkIII recently for wildlife and have had lots of happy moments with it, it really is amazing and I don't see any problems but I have also got the 5D which is also superb for wide angle use. the 5D II should be better than my 5D in theory.

When one uses a telephoto especially it doesnt matter what camera its attached to it, atmospheric conditions have a big part in the quality of the sharpness this is not focusing ability we are talking about.
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Skiwi33 Regular Member • Posts: 380
nope

the look given by hot air turbulence is quite distinctive and are not shown in these shots.

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