EF & RF Lenses
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EF-M vs EF Lenses

I currently use Canon M50 for hobby purposes, such as YT videos. With EF-M lenses only compatible with M series cameras, should one invest in EF lenses like Sigma lenses, in case a couple of years from now one wants to upgrade to RF series camera? Or...

rem45 by Apprentice
  • 2 replies

Canon M50 + Sigma 16mm focus problem

Hello everyone,I just bought my first Canon camera, the M50 with the 15-45 mm kit lens. Additionally I also bought the 16mm Sigma f1.4 lens to use with it. I messed around with the kit lens first and everything seems to be working fine. However, when...

How sharp should 28-70 f/2 L be in the corners?

I saw the christopher frost review and it indicated perfect sharpness in the corners of the image at all focal lengths wide open. However my new 28-70 is soft in the corners (purchased from B&H). Luckily this one gets sharp by f/4, my other does not ...

sceneit by Enthusiast
  • 0 replies

Thoughts on EF 500mm F4 with Mirrorless Body

I’m thinking about trying to pick up a used EF500mm F4 to use with my mirrorless bodies. Obviously there is a huge price difference between I and II, but I thought I’d see if there is any experience with one or both on here. I’ve read at least a bit ...

batmn319 by Contributor
  • 6 replies

Resolved! Reason for Lens Size Differences?

Hi,I'm interested in purchasing a 90d DSLR, and have just noticed that in some of the listing pictures on various sites the lens mounted on the camera is a 58mm and in other listings it's a 67mm. I always thought the 90d took a 67mm lens; clearly I w...

70-200 2.8 USM II sharp only sometimes

Hello, I am looking for a solution in this forum because a few weeks ago I bought a Canon 70-200 2.8 USM II lens (previously I had a 55-250 STM) and I have had problems with it.I have had the opportunity to photograph football during these weeks and ...

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77dark by Apprentice
  • 12 replies

Canon 28-70mm f/2 smudge issue

Dear Canon Support Community,I am writing to seek urgent assistance regarding an issue I have encountered with my Canon 28-70mm f/2 lens. In August of 2021, I noticed the presence of small smudge prints on the front element of the lens. It is importa...

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Resolved! Should I upgrade by rebel T7 or upgrade my lenses?

I currently have a rebel T7 it works pretty well for what I have used it for so far I do a lot of motion and sports photography. The auto focus isn't great and it struggles in low light, theres alot of noise present not sure if its the camera or mayb...

EOS R lens recommendations

I have a Canon EOS R and want to buy a a zoom lens, something like a 28-100 that has the Red Lens ring that will allow control of ISO.  is it more practical to buy an EF lens and a RING converter than an RF lens?   I also have a T7 EOS that the lens ...

Munari by Contributor
  • 4 replies
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