EF & RF Lenses
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Canon RF 70-200 f/2.8 Front Focus issue

Hi, new to the forum! I've just purchased a Canon RF 70-200 lens, and after several days of usage appear to notice a front focus. It's not a severe issue, and mainly shows up in the shallow depth of focus circumstances, such as close-ups and portrait...

dspmax by Contributor
  • 8 replies

Documentation for Canon FL 55-135mm f3.5

This question is for the old-timers. I was recently gifted a lovely Canon FL 55-135mm f3.5 lens. The aperture mechanism is not functioning. I've looked high and low for some instructions on how to disassemble the back of this lens to reach the proble...

RF70-200 Teardown

https://www.lensrentals.com/blog/2019/12/the-not-very-long-awaited-teardown-of-the-canon-rf-70-200mm-f2-8-is/ Very solidly built - and a completely new design.

Are camera lenses cheaper in Japan?

Hello everyone,,,I'm visiting Japan in two months and I'm specifically looking to buy a Sony Distagon FE 35mm f/1.4. Would it be cheaper to buy it in Japan? I'm trying to find it used to save some money, but I've googled this and checked the BIC came...

Hardus by Apprentice
  • 2 replies

Sigma 150 - 600 mm Sport lens for a Canon 7DII Camera

I'm interested in getting a little more reach for my 7DII camera for wildlife photography. I currently have the 100 - 400 mm II which I have no issues with except it doesn't always provide enough reach for far-away subjects.I'm interested in perhaps ...

50mm 1.8 STM Won't Switch to AF When Mounted

I just purchased a new 50mm 1.8 STM today. I mounted it and it was already in AF mode. I took a few shots. Focused perfectly. Then I switched to MF focus and took some shots. Still no issue. When I switched back to AF, I noticed that it wasn't focusi...

nullgate by Apprentice
  • 4 replies

Adaptor EF-EOS M

I want to use my Canon 300mm f4 with my new M6 mark ii, so purchased an EF-M lens adaptor.Many problems:The lens keeps searching for the focal point, so I switch it to manual to stop the lens from searching. The lens actually makes a clicking sound. ...

karo by Apprentice
  • 3 replies


recently purchased a EFS 18-135 lens, but it do not fit my EOS 5D Mark III . However, 28-135 ultrasonic len fitted. What type of extender do I need?  Thanks

Upgrade from Tamron 24-70mm f2/8

First, I am considering getting a newer canon body (currently EOS5Ti) and not sure what to upgrade to but looking at EOS 80D. With that said, I currently own a Tamron 24-70 mm f/2.8. I love this lens but was wondering what would be an upgrade or what...

manl4747 by Apprentice
  • 3 replies

Lens help

All,Can someone suggest a lense that I could use to shoot live performances, music concerts, video etc...I have the rebel t6 bundle with the EF-S 18-55 mm lens. Is that lens capable of doing the job, is it user error? I have shot with this lens and s...

Canon EF 200mm f/2L IS USM

Anyone here have the lens?  How does it compare to the EF 200mm f/1.8L USM? I’m thinking of purchasing it.  Can anyone recommend the lens?

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