EF & RF Lenses
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RF800 F11 lens AF issues?

My son started getting into photography within the last year.  Mainly birds & some wildlife.  He currently owns an R7 with the RF100-400 lens.  We were looking at the RF800 F11 lens but I noticed some reviews weren't great because of AF randomly not ...

rj28 by Apprentice
  • 5 replies

RF600mm F4 L IS USM Aperture Blades Visible

Hi there. I just received my new RF 600mm F4 lens from Canon shop and I wonder if the aperture blades should be visible when lens is off camera? Is that normal? I own array of Canon lenses in EF mount including 800mm prime and none of them have apert...


Resolved! Lens Magnification Question

Hello, I'm choosing between RF 100-400 and RF 100-500 L lenses. I am somewhat confused about something.If I set both lenses to 400mm and take a photograph of a bird say at the same distance, the size of the bird on the final image files should be the...

MilesP by Contributor
  • 12 replies

Diffractive Optics in Canon Lenses

Can anyone point me to a clear explanation of how Diffractive Optics work in Canon lenses? I thought I understood the principle of diffraction (from school experiments involving a surface of water, a wave machine and a diffraction grid). The Wikipedi...

Pancake lens for RF mount?

Nikon have released a proper pancake lens for their Z series cameras.https://www.wexphotovideo.com/globalassets/product-images/3084000/3084044.jpg?width=400 It's so small that it protrudes from the camera body less than the handgrip does. Apparently ...

Best Lens for Canon EOS 5D Mark III

Hi everyone! I was hoping to get your opinion on a good lens to get for my new camera. I recently upgraded and am loving shooting on my 50 mm 1.8 lens. However, I'm hoping to get another lens that is either a wide angle or just a normal frame that is...

Bradenkr by Contributor
  • 5 replies

New sigma lens

Received an email which included a review of a Sigma 60-600mm. I didn't look at the details as I'm up to my eyebrows in alligators today. Far from an expert but wouldn't the low end give more versatility for this lens?

Resolved! RF 100-400 f5.6 IS USM Pros and Cons

I'm interested in purchasing a refurbished lens. In particular the RF 100-400 f5.6 IS USM I like to shoot kids, portraits and landscaping. I’m not a professional photography. Any positive and negative on this lens? I just purchased a Canon R6 camera.

Dml13 by Apprentice
  • 5 replies

Resolved! Where are all the small lenses?

One of the supposed benefits of mirrorless cameras, resulting from dispensing with the mirror box, was going to be new designs of lenses, including compact wide-angle and standard lenses, since the rear element could now be positioned closer to the s...

PXL_20230224_150314407.jpg PXL_20230224_150637696.jpg PXL_20230224_150346752.jpg

Sigma 18-35mm 1.8 autofocus issues

I have a Canon T7i and have recently bought the Sigma 18-35mm f1.8 because I’ve heard great things about it. The problem is, once I started using it, I kept getting soft/blurry shots 50% of the time (action photos) because the autofocus seems to be o...

shiron00 by Apprentice
  • 5 replies

Resolved! EF 16-35 II on R6

Hi all,I recently acquired this EF lens, the II version secondhand and have noticed that unlike the RF 15-35 I tried, no focus scale is indicated in the EV or LCD and that with manual focus the ring does not stop at either end (zero or infinity). Are...

Which Macro Lens Is Better?

I’m looking at Canon’s macro lenses and I don’t know which one would be best. I was looking at the RF35mm F1.8, the RF24mm F1.8, and the RF85mm F2. I really want to get those close up detailed shots of flowers/bugs/small things. I understand that the...

peele87 by Apprentice
  • 2 replies
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