EF & RF Lenses
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EF-S lenses on R10 with adaptor: Does cropping occur?

Hi....I've thoroughly confused myself, which is quite common. Looking at an R10, it is APS-C. EF-S lenses were made for APS-C as well. Would this camera crop those lenses too? Or would that be just be the full frame R series bodies that would crop to...

Resolved! RF 200-800 Lens Design Issue - Filter can't be used with hood

A friend of mine was lucky enough to have received her Canon RF 200-800mm lens that she had ordered in Nov. 2023.  She has encountered an issue with the lens design.   The new lens does not appear to allow use of a filter while the lens hood is in pl...

MadJack70 by Contributor
  • 35498 Views
  • 44 replies
  • 1 likes

Registration of RF-S14-30/4-6.3 IS STM PZ

Wasted over an hour trying to register this lens.  It can't be found under either individual or kit.  I can find the lens itself, and I can find product support, etc.  I just can't register the thing.  Canon has the absolutely worst registration page...

EF300mm F/2.8 II concerns about service ending in 2028

I'm thinking about buying a EF 300mm lense but I recently saw that service dates are expected to end in 2028. Would anyone have any concern about buying one because of this? I think these are well built and maybe independent shops could service them ...

timp200 by Apprentice
  • 100 Views
  • 3 replies
  • 0 likes

AF noise with the 24-70 EF

I have a 24-70 f/2.8 EF lens on my C70 Cinema camera using a Canon EOS EF - RF adapter. The autofocus causes substantial noise. But when I put the lens and adapter on my R10, there’s no noise at all. The research I’ve done thus far suggests the adapt...

Qstorm by Apprentice
  • 122 Views
  • 3 replies
  • 0 likes

Wait for Sigma 16-300 or just buy the RF 100-400?

Hello! Just for context I have an EOS R50 The said sigma lens which should be out by May could potentially replace my 18-150 and I really like the idea of a 2x farther zoom than what I have plus the ability to go even wider. However I also want a ded...

Finally figured out my 10-20mm L stabilization problems...

Ever since I bought the RF 10-20mm f/4 L I have been struggling with inconsistent and sometimes impossible to get right stabilization issues. Even at 1/10th of a second most of the shots were coming out blurred no matter how hard I tried to hold stil...

f2Llens by Apprentice
  • 93 Views
  • 1 replies
  • 4 likes

Resolved! Canon EF 70-200mm f/2.8L IS II USM will not shoot at 200mm

I have a EF 70-200mm f/2.8L IS II USM lens that I purchased used.  I use it on a 5D Mark IV.  I have noticed that it is a bit soft and looked into making some adjustments, with the help of Reikan FoCal Pro.  In doing so, I saw that the lens was repor...

RF 70-200mm F2.8L IS USM Z stuck at F8 in video mode on R3

Hello Everyone,I'm hoping someone can lend a hand or some advice. I have a new RF 70-200mm F2.8L IS USM Z that works flawlessly in photo/stills mode. However, when I switch to video, I can't change the aperture from F8 and it's locked down in the tou...

JayHawkJ by Apprentice
  • 297 Views
  • 7 replies
  • 0 likes

RF 100mm f/2.8mm Macro L Lens / SA Ring Rubbing Sound

Hello, I just bought a new RF 100mm Macro L Lens and had a play with SA Ring. I noticed that the ring is making that inconsistent faint rubbing sound when turning. I never came across such sound with my other lenses but this is the only one shock has...

Customizable Image Stabilization for RF Lenses

I own a C80 which I love, but I do not like the RF lens stabilization for video.  Plain and simple: RF lens stabilization is too jerky.  This applies to all of the RF lenses I've used so far which include the 24-70mm f/2.8 L IS, 70-200mm f/2.8 L IS, ...

EF 16-35mm f/2.8L II USM not working with EOS R5

Hi,   I've had a 16-35L parked on my 6Dm1 for eight years. It's an incredible lens that has never failed me and I take care of my gear despite its proven durability. I've taken hundreds of thousands of frames with this lens all over the world in all ...

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aox by Apprentice
  • 2821 Views
  • 13 replies
  • 0 likes

EF 100mm 2.8 macro - strange manual focus behavior!

I am currently learning about my R8 and am using it with an EF adapter so I can take macro shots with my trusty old EF 100mm f2.8 macro lens. Today, it did something weird in Manual Focus mode: It would not let me focus! The focus ring turned, but th...

jvanides by Contributor
  • 367 Views
  • 8 replies
  • 0 likes
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