EF & RF Lenses
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Why not Electronic full-time MF

This is most likely a rhetorical question.  I was out with my RF 800mm f/11 lens and discovered that Electronic full-time MF doesn't work.  And, according to the info page, that's true.  I tried my RF 24-240mm and it didn't work either.  Finally I fo...

pedz by Rising Star
  • 1657 Views
  • 10 replies
  • 0 likes

EF 70-300 ii IS USM AF doesn't work with EOS 1000F

Hello everyone,I'm new here.Unfortunately, I haven't been able to find an answer to my “problem.”I recently inherited a Canon EOS 1000F with an EF mount.Since I already own EF lenses from my DSLR, I would like to use them on the 1000F. Unfortunately,...

Motte by Apprentice
  • 1050 Views
  • 10 replies
  • 0 likes

Resolved! Sticker and blacked-out bar code on the box of a new Canon lens

Greetings! I just purchased a new Canon RF 24-105mm F4 L IS USM on Amazon (sold by/shipped from Amazon), which arrived today.The box has no seals on it whatsoever. The white field on the top of the box has two stickers that cover the original bar cod...

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wenamun by Contributor
  • 2009 Views
  • 17 replies
  • 0 likes

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
  • 1353 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 Elite
  • 2999 Views
  • 20 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
  • 3285 Views
  • 28 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
  • 2050 Views
  • 12 replies
  • 0 likes
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