Canon EF and RF Lenses Forum

EF 600mm f/4L IS III USM on R6 body? Confused.

Found a good local/used EF 600mm f/4L IS III USM, but am confused about the tradeoffs vs. the RF mount RF600mm F4 L IS USM... Are there tradeoffs (beyond additional adapter?) that I should consider here?

Resolved! Slowly migrating from my EF lenses to RF Lenses- Recommendations for indoor lens?

Hello,I’ve had Canon EF cameras back to the Canon 20D. I purchased my R5 last year and love it. I’m normally an outdoor photographer so the first lens I migrated was my EF 100-400 to the RF 100-500. I recently was asked to shoot an indoor event wit...

New R7 owner - issue with EF 70-200mm 1:2.8 L IS ll USM lens

I have recently switched from the 7D Mk ll to the R7 and purchased the mount adaptor ring. My Sigma 150-600mm works fine as did the Canon EF 70-200 1:2.8 L IS ll USM lens when I started playing with the camera. Picked up the camera again today and th...

Is the RF 70-200 F4 a direct upgrade to the EF-S55-250 on crop sensor?

Heyo. Finally found the dimes to get back into picture-taking, so I picked up a R10 kit and EF-EOS RF adapter a few months back to run my older EF-S 55-250, which has worked.... not badly? Now, with the holiday season blah blah blah upcoming, I was t...

Resolved! Choice of first lens for bird photography

With a cropped sensor mirrorless camera from canon R series, if I have to choose between canon RF 100-400mm f/5.6-8 IS USM and canon RF 600mm f/11 IS STM as my first lense for bird photography, which lense should I choose and why so?

R50 3rd Party Lens Help

Hi!I’ve recently purchased an R50 and have found a SIGMA lens (210101 18-35mm F1.8 DC HSM) that ticks all of the boxes for my specific needs, but am I correct in saying that this is incompatible?I’m looking for a lens that will work for very close fi...

Resolved! EOS R7 Landscape Lens Recommendations

Seeking advice on options for a landscape lens that will work with my R 7 I have now and work with the R5 Mk 2 i hopefully can purchase in a year or so

Resolved! EOS R7 Comparing RF lenses at similar focal lengths

Hi,I own the R7 with the kit 18-150 lens.I'm considering adding the 50mm 1.8 lens for portraits and landscape photography.Will there be an appreciable difference in the image quality at 50mm between the two?Or maybe the best comparison is at 70mm for...

RF 35mm lens compatibility with EOS Rebel T6i

I bought a 35mm f1.8 , can i get it to fit on my canon rebel t6i?

RF Lenses won't mount on C70

Hello! I am using a C70 and I have rented some RF lenses. None of them will mount. It says Lens error. My EF lens with an adaptor will mount and is recognized. Any suggestions on what the problem is?I updated the firmware to my camera but I can't ...

35mm f2 usm vs 35mm f1.4L?

Hello, I am in the market for a used lens as finances are low but creativity is high. The difference in price is about 200 euro more for the L but is it even worth it? I'm mostly going to use the lens for landscape, portraits and every day use. I rec...

Resolved! Lens compatibility from EOS 1300D to EOS R7

Hi Everyone,I am currently considering to finally upgrade from my older DSLR APS-C Canon 1300D to a newer Mirrorless MILC APS-C Canon R7. I have done some research online, but would like to confirm with you guys about the possibility of reusing my l...

Interesting EF 400 f2.8 IS II issue - EOS-1D X Mark III rendered unresponsive

The EF 400 f2.8 is one of my favorite lenses and it ALMOST let me down yesterday at football. I typically shoot football with three bodies and lenses (1DX III bodies with 400 and 70-200 f2.8 glass and 1DX II body with 24-70 f2.8) and as I was settin...

EF 100-400mm f/4.5-5.6L IS II USM Lens switches to MF mid shoot

Hi all,I run an R6, with EF to RF Converter, 1.4x iii Extender and an EF 100-400mm ii. I purchased from MPB back in April 2023. It has worked fantastically for birding, but just recently I'm in the middle of a session and the lens makes a metallic no...

Problem to register my EF lenses in CPS

Hi there, I was trying to register my Canon EF Lens 24-70mm USM II f/2.8 but i cannot find in the list, as more products as: Canon EF 70-200mm USM III f/2.8Canon EF 50mm f/1.4Moreover I cannot find the model of Canon EOS 6D Mark II Please let me know...

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Posts

EF 600mm f/4L IS III USM on R6 body? Confused.

Resolved! Slowly migrating from my EF lenses to RF Lenses- Recommendations for indoor lens?

New R7 owner - issue with EF 70-200mm 1:2.8 L IS ll USM lens

Is the RF 70-200 F4 a direct upgrade to the EF-S55-250 on crop sensor?

Resolved! Choice of first lens for bird photography

R50 3rd Party Lens Help

Resolved! EOS R7 Landscape Lens Recommendations

Resolved! EOS R7 Comparing RF lenses at similar focal lengths

RF 35mm lens compatibility with EOS Rebel T6i

RF Lenses won't mount on C70

35mm f2 usm vs 35mm f1.4L?

Resolved! Lens compatibility from EOS 1300D to EOS R7

Interesting EF 400 f2.8 IS II issue - EOS-1D X Mark III rendered unresponsive

EF 100-400mm f/4.5-5.6L IS II USM Lens switches to MF mid shoot

Problem to register my EF lenses in CPS

Big Savings - Canon RF 100-500mm f/4.5-7.1 L IS US...

EOS M50 -doesn't take pictures with EF-M 15-45mm l...

Can 3-D RF 5.2 mm F2.8 L Dual Fisheye footage be p...

Sigma and Tamron Spill the Beans on Lens Sale For ...

Focal lengths and lenses used by great directors

How to check dust in lens

Lens for R6MkII

EOS RP - Lens Recommendations

Damaged af for the lens if camera?

RF50mm f1.8 - focus shift on higher f-stops?