EF & RF Lenses
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Aesthetic defect on my 100-400mm L IS II

Has anyone had an issue with small metal plate coming off top of tripod collar flange? I was out in field one day this summer and did not realize it could pop off. I thought flange was one solid piece but now I know it is not. Cannot seem to make hea...

Will Lens X Work on Camera Y?

This question comes up a lot, so I wrote an article explaining all the issues and combinations. Here it is:https://moonblink.info/MudLake/gear/lensesIt turned out a lot bigger than I wanted, but this turns out to be kind of a messy issue. Anyhow, the...

EFS 18-135 IS USM not focusing

I’ve only had the EF-S 18-135 USM Lens for 2 years and now it won’t focus (used with 80d camera).  On AF, it won’t focus at all, so I can’t take photos.  But if I zoom on a subject and it is focused, then it will take the photo. On MF, the focus ring...

Vickeyc by Apprentice
  • 13488 Views
  • 11 replies
  • 1 likes

Lens Recommendation for Both Sports and Wildlife

So I have a 70-200 f /2.8 and I have been told that not good for wildlife I look at the RF800 but I'm told that not good for Baseball and I want a lens that uses for more than one subject. Any help for a lens that good for both sports and wildlife wo...

EF 135mm f/2L USM not manually or auto focusing

Hi,Yesterday I tried using my 135 mm f2 L lens and it was not auto or manually focusing. Even when I tried turning the ring it doesn't do anything. I used it one week ago with no issues and I haven't dropped it or anything. What can be the issue and ...

What zoom lens should I get?

I have a Canon Rebel T5i. I have two lenses: EFS 55-250mm f/4-5.6 IS II Lens and a EFS 18-55mm. When I take photos, it's very grainy. I want to get a new lens that's very good and sharp. I want one lense where I can zoom I pretty good and I can zoom ...

Canon 70-200m F2.8LUSM (MK1) autofocus not working

I recently purchased a 70-200mm F2.8L USM lens and when I hold the shutter button half way, the lens is just focusing back and forth, and not finding anything to focus on. If it does focus on an image,80% of the time the image is out of focus. I’ve t...

Cj7509 by Contributor
  • 1540 Views
  • 5 replies
  • 0 likes

Canon 70-200m F2.8 USM autofocus not working

I have an old (20 years old) 70-200mm F2.8 USM EF lens. I just bought a Canon 6D body, and the lens wont auto focus. When I hold the shoot button half way, the lens is just focusing back and forth, and not finding anything to focus on. My other old E...

iyamdman by Apprentice
  • 8965 Views
  • 8 replies
  • 0 likes

Unexpected Manual Focus Restrictions with Select Lenses

I recently purchased an EOS RP with an RF24-105 f4-7.1 IS STM lens for my daughter to use while out on photography shoots with me. After working with the combination for a short while, I noticed that the lens differs from the L-series lenses that I u...

JGTank by Apprentice
  • 3828 Views
  • 6 replies
  • 0 likes

EF 100-400mm f/4.5-5.6L IS USM tightening repair

Canon service says they no longer support the older model 100-400 IS lens. My locking ring no longer locks. Has anyone had this repaired? where did you send it? Is it a repair that I could make, Where could I find parts, and instructions? Any advice,...

tlnoel by Apprentice
  • 1825 Views
  • 4 replies
  • 0 likes
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