Four’ish years usually on a tripod in a climate controlled studio. Maybe ten family trips. I’m guessing the warp ring is from a couple of days stored in a Pelican in the car on hot days but know idea. Functionality not affected and I have no idea whe...
Canon is ending service for these two lenses, if you own them it may be worth looking for local repair centers in the event you have a challenge. EF100 2.0 USM: July 2025EF600 4.0L IS II USM: July 2025
Good Morning, Yes I am embracing digital cameras and loving it. I made my choice and got an R7. I know I have a lot of EF glass, but one RF lens that intrigues me is the 24-240. Seems to be a really decent lens from what I've read thus far. And tha...
Hi all, I have an opportunity to use RF 35mm F1.4L VCM together with my EOS R10. It would seem that they should be compatible, however, it seems like there is some issue with this combination. When I start the camera, it's almost like the lens fails ...
EOS RP with RF 70-200mm F2.8 L IS USM for astro I am evaluating the RF 70-200mm F2.8 lens for astro. So far I am reasonably impressed with some preliminary results (comparing to a 135 mm Rokinon prime lens). I have a question about a bright star flar...
age of a used lens, I just bought a 70-200 EF 2.8 L is USM from B&H = S/N 257[xxx] how do I determine its age, Thanks Phil [Serial number partially hidden to protect user privacy.]
All, I was in a camera store last week and the rep that I was talking to mentioned using a APS-C lens with a full frame camera. With a Canon you are losing 60% of your pixels or only using 40 % of your pixels. Why would you want to use that combinati...
Hi,I've seen some older posts on the following issue, but never has there been a solid answer or the problem was (wrongly) accused of being due to an inferior tripod used. I've come across this problem with the RF100-500 and it's quite a dealbreaker ...
Hello! Does anyone know why the Canon 28-70mm f/2 does not show at all on their refurbished lenses page? If it ever does, what’s the refurbished price? Thanks!
I can not afford high priced lens i bought the new canon eos r7 want to take bird pictures
I have just got hold of a 2nd hand sigma lens but dont know which mount it has. It is a Sigma AF DL Macro Super 70–300 mm f/4–5.6..I think it is the AF but it doesnt actually say on it. The only clue I have is the rear lens cap says on it...for Minol...
I have the R5 Mark II. Recently i purchased the RF 800 F11 IS STM lens. I have not been able to get the lens to focus. It is like it gets close but the image remains fuzzy. Is there something wrong with the lens or something I am doing wrong?
Is there a difference between buying used Japan ef-s lenses vs say from mpb or keh camera for lenses? I've seen them cheaper coming from Japan then getting them in states.
Hello. I'm not sure if this is a camera or lens issue, but I'm guessing lens. I've had my R7 and RF100-500 for 2 years. About a week ago, I started experiencing a focus issue with the lens. When zoomed to 400-500, it will be focused fine, then su...
Hello everybody, since I hope many of you here have this amazing lens, I would like your opinion about mine: I snagged one used and while making very sharp and nice pictures, it makes some weird noise when zooming between 100 and 200mm, even with c...
