Gear Talk > Lenses
EF 40mm STM Pancake Problem Acknowledged
kdsand:
--- Quote from: Mt Spokane Photography on August 07, 2012, 01:31:48 PM ---
--- Quote from: kdsand on August 07, 2012, 01:08:44 PM ---Well heck.
I guess I had that happen on my 60D.
I was fiddling around a bit absent minded & the lens moved inward with a fairly light pressure made by my finger. I saw it move about 1/8 inch :o (oops) & thought that didn't seem right.
I had to pop the battery out & back in to get functionality back in the lens ( didn't try re seating the lens ). It seems it just froze up causing no damage :) . Definitely sensitive, glad their doing a fix because it could be a pain in the butt ox if it happened often.
--- End quote ---
If you push the end of the lens barrel to put on the cap, or whatever, it will telescope in, some may take more perssure, but all of them move.
What should noot happen is for the camera to lockup when it senses a lens movement.
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Yep if you put a cap on with a little to much force it could happen, although it hasn't locked up on me since that first time. I am pretty good at not interfering with AF or stripping gears in general but since its so nice to leave that lens on in a tight bag ready for a quick draw I suppose it could freeze up randomly in those circumstances.
As long as its not a hardware issue, it will be - should be relatively a simple firmware fix.
Kcray85:
From the Canon USA website http://www.usa.canon.com/cusa/support/professional/professional_cameras?pageKeyCode=prdAdvDetail&docId=0901e02480602860
Mt Spokane Photography:
I played with mine some more today. With the lens mounted to my powered up 5D MK II, I pushed the barrel of the lens all the way back, and did a lot of other screwy things, but it kept on working perfectly. Apparently not all of them have the issue, or it is particular to certain camera bodies.
ageha:
--- Quote from: Mt Spokane Photography on August 07, 2012, 10:57:21 PM ---I played with mine some more today. With the lens mounted to my powered up 5D MK II, I pushed the barrel of the lens all the way back, and did a lot of other screwy things, but it kept on working perfectly. Apparently not all of them have the issue, or it is particular to certain camera bodies.
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Or maybe just an early batch is affected?
Mt Spokane Photography:
--- Quote from: ageha on August 07, 2012, 10:58:17 PM ---
--- Quote from: Mt Spokane Photography on August 07, 2012, 10:57:21 PM ---I played with mine some more today. With the lens mounted to my powered up 5D MK II, I pushed the barrel of the lens all the way back, and did a lot of other screwy things, but it kept on working perfectly. Apparently not all of them have the issue, or it is particular to certain camera bodies.
--- End quote ---
Or maybe just an early batch is affected?
--- End quote ---
I think mine is a early batch.
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