EF & RF Lenses
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Resolved! RF 100mm f2.8 macro lens serious focusing issues

I recently purchased a RF 100mm f2.8 macro L series lens. I'm using it with a new R5 mk II. The lens moves out of focus with no input from me. When I try to focus on an object with sufficient light and contrast the lens doesn't move. Using the manual...

Resolved! Lens elements rattle/shake on RF 70-200mm F2.8 L IS USM

This is rattle / shake normal for RF 70-200mm F2.8 L IS USM?  I've never had a canon IS lens with this amount of rattle / shake.I Just moved from Canon DSLR to Mirrorless, my R5 Mark II body is still in the mail so I can't test it on body.I bought th...

Ricey by Apprentice
  • 436 Views
  • 8 replies
  • 0 likes

Question about variable zoom lenses and aperture

As I understand it, with a variable zoom lens, as you zoom in, your available aperture gets smaller.. As you zoom in, the amount of light hitting your sensor is reduced. If your aperture gets smaller, that reduces the amount of light hitting your sen...

stevet1 by Authority
  • 826 Views
  • 20 replies
  • 0 likes

How long to adapt to heavy lens?

I just upgraded my lens from the RF 50mm f/1.8 to the RF 70-200 f/2.8 and my body’s not sure what happened.Does one eventually adapt to the weight to the point where it’s not even noticeable? If so, how long did it take to feel manageable?Is there a ...

c1live by Apprentice
  • 342 Views
  • 7 replies
  • 0 likes

Resolved! RF 28-70 F2 IS STM f-stop range question

All, Considering purchasing the above lens. Because there is not a range in F stops. The F2 is the F stop at 28mm as well as 70mm. Is that correct? Thank you in advance for your response. 

Cantrell by Rising Star
  • 1363 Views
  • 28 replies
  • 0 likes

How to adapt M42 lens on EF-S mount for EOS 2000D

My friend has a 2000D with a stock lens and hes not using it much. So i wanted to give it a new life with a M42 vintage lens. Ive found a mount from KF Concept, but by Chat GPT there could be an issue with focusing, because the lens will be too far f...

mayers by Apprentice
  • 273 Views
  • 5 replies
  • 0 likes

Visible Vignetting with RF100-500 + R5

  Hi allNoticing vignetting when viewing in equalize mode in almost all my photos. I’ve been using the same settings for 15 years with my aviation photography and I never saw this with my old 100-400 paired with the 70Dany input would be appreciated ...

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roush6ny by Apprentice
  • 711 Views
  • 12 replies
  • 0 likes
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