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Eos 7D focus problem?


19 Mar 2013 5:31PM
Thanks Dave but I am not using AF but yes, it does sometimes hunt a bit on AF which is why I went to manual in live view!

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mikehit Plus
6 8.0k 13 United Kingdom
19 Mar 2013 5:34PM
The face of the rock on the left looks to be more in focus, as does the strand of grass cutting across the red patch, but that is one heck of a focus 'error'. This would suggest that the lens is refocussing for the actual image.
Like you, I thought the LV image is what the sensor 'sees'.

Have you tried a 'hard reset'? Remove both batteries and leave for at least an our before replacing them and booting up again. Apparently you will lose your date/time settings and image numbering but your customs settings will be intact.
GlennH 10 1.9k 1 France
19 Mar 2013 5:36PM
EXIF data seems to have been stripped out, presumably during uploading to ephotozine. Is any part of the picture sharp? Looks to me more like a focusing issue than camera shake, although it's difficult to tell at that size. Have you tried using AF in conjunction with 10X live view?
banehawi Plus
11 1.2k 3218 Canada
19 Mar 2013 5:39PM
1. Does it happen with any other lens?

2. Have you tried to use the micro alignment feature the camera has to ensure the lens ans AF system are synched?

3. What is your shutter speed at 300mm?



Willie
lawbert 8 1.8k 15 England
19 Mar 2013 5:49PM
Another Question

you say you manually focussed but was the lens set to manual focus?
19 Mar 2013 6:06PM
Yes lawbert, I was in manual focus which is why I am puzzled. Everything in the "chain" is the same, lens, 1.4X etc. and in "live view" it's as sharp as I could want but the actual images captured is "soft" to say the least.
banehawi Plus
11 1.2k 3218 Canada
19 Mar 2013 6:09PM
Michael, can you answer my 3 questions above?


Thanks


Willie
lawbert 8 1.8k 15 England
19 Mar 2013 6:32PM

Quote:Yes lawbert, I was in manual focus which is why I am puzzled. Everything in the "chain" is the same, lens, 1.4X etc. and in "live view" it's as sharp as I could want but the actual images captured is "soft" to say the least.


Only reason I asked if the lens itself was set to manual focus is because no matter how critically sharp the image is in live view once you press the shutter (via cable release in your case) the AF will re focus the image which would then be an AF problem....If the lens was set to manual focus then its most peculiar and Willies 1 and 3 questions are very pertinent.
Ade_Osman Plus
12 4.5k 36 England
19 Mar 2013 6:37PM
Mirror-Slap????

Probably exaggerated by the TC and/or worn mirror box.
19 Mar 2013 6:44PM
banehawi - sorry, trying to cook supper at the same time! Shutter was 1/100 at f6.3, ISO 200. I havent tried another lens yet, will do tomorrow. The micro adjustment is when using AF I believe? I'm manually focusing.
lawbert 8 1.8k 15 England
19 Mar 2013 6:48PM

Quote:Mirror-Slap????

Probably exaggerated by the TC and/or worn mirror box.



Mirrors locked up in live view I believe
Ade_Osman Plus
12 4.5k 36 England
19 Mar 2013 7:20PM
If it's worn you can still get movement in the mirror-box as I stated.........Costs about 280 to put right as I have found to my cost.Sad
19 Mar 2013 7:41PM
Ade_Osman - are you saying that even with the mirror locked up (as it has to be in live view) it can still move when you operate the shutter? I have no idea how many shutter operations there are on the camera and no idea how to find out other than I have never reset the file numbering and I'm currently on 6894.
lawbert 8 1.8k 15 England
19 Mar 2013 7:49PM

Quote:If it's worn you can still get movement in the mirror-box as I stated.........Costs about 280 to put right as I have found to my cost.Sad


Fair enough Ade, Was That on a 7d?...What was the shutter count?
Ade_Osman Plus
12 4.5k 36 England
19 Mar 2013 8:26PM

Quote:Fair enough Ade, Was That on a 7d?...What was the shutter count?


No a 50d with 80,000+ actuations, came back from repair as good as new though with a complete Canon reset including the focus being perfectly calibrated. Colchester Camera Repair did the job and I can't recommend them high enough.......However, I digress, back to the OP problem I'm inclined to think Mikes problem lies with the TC and am wondering if he has any problems if he were to use an extension tube instead. Of course the problem could lie with the fact that the camera's focus needs re-calibrating.
It's one of the reasons I've hung onto my 50d's and not replaced them as yet, they the facility whereby you can micro-adjust the focus to suit any particular lens combo, I'm not sure if you can do this on a 7d, I know you can't on the 60d, though I'm sure someone will tell me if I'm mistaken Smile

GrinGrin

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