EF & RF Lenses
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EF-S APS-C lens on Full Frame ?

Hi, I have found myself in a bit of a predicament, I’m in an upgrade process, from Canon 2000D. I had my mind made up on the Canon R7, which will be a great transition with all my current lenses, by just adding the EF to RF Adapter. But now I found a...

j1udith by Apprentice
  • 2991 Views
  • 3 replies
  • 0 likes

RF-S18-150mm AF/MF switch stopped working

Hello everyone, I have an r7, and with the rf-s 18-150mm f3.5-6.3 STM, I have been using the af/mf switch on the front of the camera body to switch between focus modes quickly, since the lens has no such switch.  Suddenly this switch on the camera bo...

Resolved! Some weird blurriness for EOS R6 Mark II with RF24-105 f/4

I bought my new canon R6Mark2 with RF24-105 f/4 from Japan recently and shoot my first set of photos. However, the blurriness of the out-of-focus area appears to be very weird. Here are some examples: Screenshot 2025-10-25 at 5.12.51 PM.jpg   Screens...

Screenshot 2025-10-25 at 5.12.51 PM.jpg Screenshot 2025-10-25 at 5.16.38 PM.jpg Screenshot 2025-10-25 at 5.11.44 PM.jpg

Resolved! Is this a Newton Ring in my EF-M 14-45mm

test 01 45mm.jpegsurfer newton ring.jpegThis concentric ring appears at every focal length in the same spot, in the top left corner, at aperatures 6.0 and smaller, magnified with more zoom toward 45mm.  With or without hood or filter or angle of the ...

test 01 45mm.jpeg surfer newton ring.jpeg

Determining a Nodal Point (no Parallax Point)

Depending upon the content captured in panoramas, it will be crucial to determine the nodal point (aka no parallax point) of your lens and camera combination. This allows for easy compositing since objects in the scene will correctly line up. What fo...

leveling_base.jpg c_stand.jpg lines.jpg nodal_slide.jpg
rs-eos by Elite
  • 6129 Views
  • 5 replies
  • 18 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...

green0460 by Apprentice
  • 14780 Views
  • 12 replies
  • 0 likes

EF-S 10-18mm f/4.5-5.6 IS STM rear lens element moves

Hello everyone -    I recently purchased a used Canon EF-S 10-18mm f/4.5-5.6 IS STM. The rear lens element moves. I first noticed it before I put it on the camera. It’s kind of like a rattle. Is this common with this lens? I’ve never owned a lens tha...

Protecting non-weather sealed lenses

I'm going to be taking my R7 (weather sealed I believe) with my RF 100-400 and likely EFS 17-55 to the beach, hoping to photograph sand pipers/gulls/pelicans and some landscapes by the water, how should I protect my gear? Is a fly bag/rain cover enou...

kolaktu2 by Apprentice
  • 1943 Views
  • 2 replies
  • 0 likes

Baseball photos too far away with 24-50mm lens on EOS R8

Help I’m a newbie. No idea what I’m doing. Tried watching YouTube videos but I’m still lost. I have a Canon R8 EOS. I have a 24-50 lens?  I bought it to take photos of my son’s baseball tournaments. What I have right now is not close enough or clear ...

EF 135mm f/2L USM not manually or auto focusing

Hi,Yesterday I tried using my 135 mm f2 L lens and it was not auto or manually focusing. Even when I tried turning the ring it doesn't do anything. I used it one week ago with no issues and I haven't dropped it or anything. What can be the issue and ...

RF 400mm f/2.8 Lens Tips: Autofocus is slow

Hello, I use the RF 400mm f/2.8 lens with either my R1 or R3 to shoot football and soccer. I have a lot of difficulty getting the lens or camera to focus fast. It's not that I don't get good shots with it, but I seem to get a disproportionate number ...

Zhaopian by Enthusiast
  • 5366 Views
  • 8 replies
  • 0 likes

EF 70-200 L IS II USM Focus Falloff

Focus Trails off toward bottomHey all! This has been going on for a while but it seems to be getting worse.  Is this something that can be adjusted or is it time for a new lens?  Thanks!

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