I have a Canon Lens EF 400 1:2.8L IS USM (version1) lens. The color tensioner knob has come undone, and I would like to reinstall it. It appears from all of the diagrams I am able to find that the tensioning mechanism has to be installed while the ...
Considering what EF and RF lenses cost the consumer do you believe that those prices are justified when the manufacturing of plastics components is easier as opposed to the manufacturer of glass elements. The manufacture costs of anything plastic o...
I've been trying to register a new lens (RF 100mm F2.8 L Macro IS USM) since last week. I log in, go to support, enter my lens and choose it, click "register your product", and it brings me to a "sign in to register your product" page. I click sign i...
I bought the Canon RF-S 55-210mm F5-7.1 IS STM Lens a couple of weeks ago. I noticed that there was a problem when I was taking photographs against the backdrop of blue sky at a narrow aperture. Indeed, all photographs I took from f/32 down to f/11 w...
My EF 75-300mm f/4-5.6 III lens will not work with my Canon Rebel t7. An error message appears that the connection between the lens and body is faulty and to clean the lens contacts. However, when I do so it still does not work. For reference I do ha...
Hi - I noticed when visualy examining my RF 100-500 lens after an unfortunate drop, that as I look down the barrel I see what I think is a internal cylindrical baffle, and it wobbles slightly as I rortate the lens.. Before I send it to Canon for repa...
I usually store my lens on my camera body. Is it still safe to do with the 2x extender on? It is an R6 II, a 70-200z and a 2x extender.
so I have an R6 mkii and I bought a sigma ex 24-70mm 2.8 macro wanting to use it for video/photography. photos, everything seems to work fine, but on video, the autofocus just craps the bed ive read there can be issues on the older lenses with the ne...
Just got my new RF85 f/1.4.So far, very happy with the lens itself. One disappointment, however, is that the lens optics seem to be incompatible with effect filters.I have assembled an arsenal of ghost-style and split diopter filters that work beauti...
I have four kids, and each of them was a three-sport athlete every single year. That means I've been standing on the sidelines for over 20 years. While I have cycled through a combination of seven different camera bodies over the decades, I have reli...
FedEx delivered my 'new' lens this afternoon. I'll send it to Canon so they can give it the once overs, clean and adjust. I talked to one of the CPS reps who told me that I should see turnaround of less than a week.I'll let you guys know what happens...
Hello Canon Community,I recently purchased a Canon EF 50mm f/1.2 L USM lens and have been noticing a significant amount of chromatic aberration in my photos. This occurs even in well-lit conditions and is particularly evident around high-contrast edg...
Hello, longtime reader, first-time question:My Canon 70-200 EF lens on my R7 (with the adaptor) has recently begun to produce images at f2.8 that seemed smudged across the breadth of the photo (not just away from the focal point). This is even at sh...
A brand new RF 800 mm F11 IS STM prime lens I just received via online order does not seem to work. When properly mounted to my EOS R6 camera body (firmware version 1.8.3), the camera displays "Set the lens to the shooting position", regardless of w...
I have the EF 24-70 f2.8L lens on my R6 Mk II, via an adapter. I just noticed that there are two problems, perhaps related. First, the lens will only zoom down to 28 mm, not 24. The other is an Error 01 (connectivity) and/or an intermittent buzzin...
