What could be causing this?
May 24, 2020 13:49:25 #
I was out shooting some macro today, Canon 100mm f2.8L and a 6D Mark ll. After about 8 shots it quit working. No focus and the shutter button would not release. Put the lens on a 90D and it did not work there either. Today is not the first time this has happened. Some days it works just fine all day. I have had the same problem with a 7D Mark ll and a Tamron 90mm 2.8 macro. Any ideas? The 90D, 6D Mark ll, and the Canon 100mm macro lens are almost new. Using a very old Sandisc 16 card. Taking off the macro and the cameras perform perfectly.
May 24, 2020 13:51:32 #
May 24, 2020 14:03:19 #
First thing is to clean the contacts on the lens. Then, if that doesn't help, make sure the lens is firmly mounted to the camera. Make sure it locks in snugly when you mount it.
May 24, 2020 14:05:26 #
Potential issues:
Dirty contacts on body or lens
Lens not completely mounted (locked into position with a click)
Corrupt firmware (download and install the latest)
Menu settings incorrectly set for the situation
Circuit or mechanical failure in body or lens
Dirty contacts on body or lens
Lens not completely mounted (locked into position with a click)
Corrupt firmware (download and install the latest)
Menu settings incorrectly set for the situation
Circuit or mechanical failure in body or lens
May 24, 2020 14:06:22 #
Is there any chance you were inside the minimum focus distance of the lens?
Easy for me to do when shooting macro.
Easy for me to do when shooting macro.
May 24, 2020 14:16:11 #
BassmanBruce wrote:
Is there any chance you were inside the minimum focus distance of the lens?
Easy for me to do when shooting macro.
Easy for me to do when shooting macro.
I thought of that and I am going to pay more attention. After the lens/combo sits for awhile all goes back to normal. This time it was longer that normal.
May 24, 2020 14:26:51 #
I have Nikon, but I encountered one lens that wouldn't autofocus when the battery still showed charge but was low. Could it be battery?
May 24, 2020 14:41:51 #
quixdraw wrote:
I have Nikon, but I encountered one lens that wouldn't autofocus when the battery still showed charge but was low. Could it be battery?
I don't think so. The batteries were just charged this AM and the mishap happened within the first ten photos.
May 24, 2020 14:44:40 #
will47 wrote:
I thought of that and I am going to pay more attention. After the lens/combo sits for awhile all goes back to normal. This time it was longer that normal.
After a while it works again. That sounds like an overheating issue.
May 25, 2020 05:47:03 #
BassmanBruce wrote:
Is there any chance you were inside the minimum focus distance of the lens?
Easy for me to do when shooting macro.
Easy for me to do when shooting macro.
Been there, done that! If the menu is set to release ONLY when accurate focus is acquired this can cause one to wonder WHAT THE HECK? The difference between in/out of focus in macro can be barely perceptible to my eye through the viewfinder.May 25, 2020 05:48:58 #
PHRubin wrote:
After a while it works again. That sounds like an overheating issue.
May 25, 2020 06:28:38 #
whitehall
Loc: Canada
Hm. Same problem on two different cameras FF and Crop. My but is on dirty contact on the lens combined with focus priority on the camera. Best of luck.
May 25, 2020 06:56:18 #
Is that the only card you can use?? I don't think it's overheating if it happens after just 10 shots.
May 25, 2020 06:56:40 #
Pablo8
Loc: Nottingham UK.
Had a problem with a Nikkor 180 f/2.8 AF lens on my film cameras. Would not AF till I reversed the twist action, after locking lens to the click state, The lens barely moved, but it was the answer to get the AF and shutter working again. The only lens with that anomaly.
May 25, 2020 06:59:46 #
will47 wrote:
I was out shooting some macro today, Canon 100mm f... (show quote)
My suggestion is when shooting macro use manual, especially focus then you will know if your too close.
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