EF & RF Lenses
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My EF-S 18-55mm can't do consecutive autofocus

Hi everyone! I'm using the kit lens with Canon 60D. The lens can autofocus but would not move if I try to take another shot. I would have to move back to MF, twist the focus ring a little then move back to AF for it to work again. The autofocus works...

aerysa by Apprentice
  • 4 replies

Resolved! The truth about extenders

Hi Folks,  So I have a Canon 7D and a 70-200mm EF lens. I got givena 1.4X EF extender. Question. What's the overall focal length? is it 1.6 (crop factor) X 1.4 (extender) x 70 (at low end) = ~157mm (or 448mm at high end) or is it 98mm at low end 'cro...

Purpose of SA Control for Macro?

Hi,I've been watching the early reviews of the RF 100mm f/2.8L lens with interest, as I am greatly looking forward to having a native 1:1 (or better!) macro option on the R5.All the demos that I have seen of the SA control feature have results where ...

rorecoko by Apprentice
  • 2 replies

Buy an 1.4 or 2.0 extender instead of another lens?

Here's where I'm coning from. I have a Canon T7 with the 75-300 lens. Some of you will recall I had inquired about the Sigma 150-600 lens. I was browsing through Lenses and found a conversation that mentioned keeping a lens that goes to 300mm and get...

Defect autofocus / focus EF 100mm f/2,8L Macro IS USM

Hi.  I've read some of the previous threads regarding issues with autofocusing on this particular lens, but I think that my problem is somewhat different.When I turn on the camera, 5D III, the lens immediately starts hunting/clicking, and when I say ...

SteksDK by Apprentice
  • 4 replies

Cannon 18-55mm zoom in issue

I have a kit lens of 18-55mm. However, recently while zooming in the 'subject' gets blured but when I zoom out it works fine. This happens in all the mode. I tried to resent the camera to factory setting too but still the same issue. Can any one thro...

Gawa by Apprentice
  • 5 replies

Lens Review - EF 70-210, f4

Has anyone owned this 1st generation 70-210 f4 from 1987?  What did you think of its performance?  Would it be a lens worth keeping?

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trossit by Enthusiast
  • 13 replies

Lens switching to manual focus when recording

I'm using canon 100mm lens and I have the camera on auto focus but when I attach the macro lens it automatically switches to manual focus? Does anyone know why it's doing that? I have a 50mm and this doesn't happen so I think it's an issue with the 1...

abb678 by Apprentice
  • 5 replies

Lens not switching to MF

Hi everyone,I was wondering if anyone could help me. I just bought a used lens on let go (Canon 24-1-5 f4 L Series). I use it on my canon rebel t6. The switch from af to mf physically switches but it stays in af. Is this something I can fix or is the...

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