EF & RF Lenses
cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

Posts

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...

IMG_8548.JPG IMG_8547.JPG

RF 70-200 f/2.8 ticking autofocus sound

Hello! I just bought a new RF 70-200 f/2.8 lens to use on my R6 mark 1 (after deciding to sell my EF 70-200). I'm blown away about the image quality and autofocus accuracy! But, after watching reviews and reading a lot about the lens I though it shou...

Shebulba by Contributor
  • 4728 Views
  • 6 replies
  • 0 likes

EF 24-70 f/4 L IS USM "Connection Error" message

I am a high school photo teacher.  We purchased a canon zoom lens EF 24-70 mm 1:4 L IS USM lens with a grant last year.  Unfortunately now we keep getting an error message saying there is a connection error with the lens.  I have tried cleaning the c...

Resolved! Using the EF 85mm 1:1.8, how to improve focus

Hi folks  EOS90D currently with my EF 85mm 1:1.8 attached.  I've had my camera nearly 2.5 ys now and bought a few lenses early on, in a waive of enthusiasm.  Now I'm trying to work out what they all do! The 85mm is, on the face of it, a decent lens f...

_MG_5578.JPG
Ramsden by Mentor
  • 1931 Views
  • 18 replies
  • 8 likes

End of Service Life - EF 70-200mm f/2.8 L USM

I just received an email notice from Canon that the original EF 70-200mm f/2.8 L USM will reach the end of service life on June 30, 2026. While it's always a bit sad to know a product you own is at the end of its service life, I can't complain since ...

Screenshot 2026-05-04 at 9.59.14 AM.png

EF-S 24mm experience

Hi folks I have an EOS90D and live in the North of England. I bought an EFS 24 mm lens a couple of years ago, mainly for street work. It has however, has little use as my family of lenses has grown. Today, I dusted it off and did some more reading an...

Ramsden by Mentor
  • 2668 Views
  • 28 replies
  • 8 likes

Non-threaded hole on 100-500 lens collar. What is it for?

Does anyone know why there is an extra non-threaded hole on the foot of my 100-500 lens collar?  It would be nice if it was 1/4” 20 threaded so you could use 2 bolts to keep the plate from rotating but it isn’t. But is there some other use for it?  I...

IMG_8531.jpeg
Trezmo by Apprentice
  • 236 Views
  • 2 replies
  • 0 likes

RF 28-70 F2 Coating Issue

Has anyone else experienced the coating peeling off on the 28-70 f2, this lens is very expensive and I have had the lens less than a year and canon repair is telling me it is not under warranty. I have heard numerous people talk about having the same...

Resolved! Rf 200-800 lens collar annoyances

The lens collar on my RF 200-800 has had a small amount of play in it since day 1. It does what it's supposed to do and does not rotate when tightened, but when you pick it up by the lens foot, you can feel the play. When the collar is loose and able...

Mphoto by Contributor
  • 1143 Views
  • 16 replies
  • 0 likes

RF 70-200 2.8 USM Z autofocus issues

I’m on a r5 mark ii. This is a second rf 70-200 z that had this issue. The autofocus is often jittery, unable to lock onto the subject. The af indicator square is also orange, instead of blue for servo. This is especially noticeable on mainly white o...

Getting started

New to the community? Here's some information to help you get acquainted:

Announcements