Letchworth Picnic in the Park
Popped down to one of the parks at the edge of our town centre this afternoon to see some school student musical entertainment.
I only took 40 shots, mostly of the Highfield School Jazz Band in which my daughter is the only female. That’s her playing the electric violin.
Despite the look of the first shot, the weather was sunny & dry. All shots were taken on the Canon 100-400mm L IS lens.
Unfortunately, I seem to be having problems with the 100-400 at the moment. It started at Silverstone, after taking a shot or two I get an ‘ERR 01′ error message which is a lens contact error. Today it happened quite a few times. What happens is after taking a shot, the camera locks up so you can’t take any more, the aperture changes to ’0.0′ & the ‘ERR 01′ message is sometimes displayed. I have to turn the camera off or release the lens from the camera & then refit it, or sometimes both in order to get the camera working again.
I’m hoping the problem will resolve itself with a bit of cleaning of the contacts but if not I may have to return the lens to Canon for repair, which will be a right pain as I have Silverstone F1 testing at the end of June & the Royal International Air Tattoo in early July, not to mention the summer hols in August.
Posted under Photo Shoots

I have had the canon 100-400mm IS lens for about 5 years and have only recently gotten the dreaded Err 01 message. I first had it mounted on my 20d and i placed it on my 10d and received the same error after 4 or 5 shots. Yes this error (auto focusing and freeze up) only seems to happen when the lens is switched to the “IS” mode. The lens seems to work fine when not in “IS”… So is this a contact problem or a more serious problem with the gyros?
Are you still experiencing the same?
Martin
Hello Martin
yep, just waiting for the end of the summer & airshow season before sending it off to Canon to get sorted.
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