EF & RF Lenses
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Optical Resolution on the EF-S 18-55 mm lens

Hello! I am a researcher using an EF-S 18-55 mm lens to film some mechanical testing of composite structures I have 3D printed using a polyjet printer and I was wondering if anyone knows the dpi on this lens or has tested it? The points I am tracking...

PolyJet by Apprentice
  • 699 Views
  • 3 replies
  • 0 likes

Canon EF 500mm f/4L IS USM Maintenance Recommendations

Hi,Being the owner of a EF 500mm f/4 for almost fifteen years I would liketo have it maintenance serviced. Unfortunately Canon no longer supportsservice for this lens. Can anyone recommend a good lens maintenancecompany in the Southeast US? Thank you...

Mark7pro by Apprentice
  • 805 Views
  • 3 replies
  • 0 likes

Resolved! Soft / Blurry zoomed photos on Cannon R8 EF 100-400mm lens

Please help, not sure what changed in my manual photo setting but my photos are turning out soft / blurry when zoomed in. It was not this way before. Here are some pics and settings of the photos  The birds were not that far from me, it was a cloudy ...

IMG_1515.jpg IMG_1438.jpg

EF400mm f/2.8L IS II USM stops working

Weird Problem with a canon EF 400 / 2.8Hey there,i got a weird one here, i mainly use my 400/2.8 L II with the 1Dx, but the behaviour is reproducable on my 5D Mark III, and it only happens with the 400.After a short time of normal function the displa...

Resolved! Irix 15mm incompatibility with Eos R6 Mark 2

Hello,I just would like to report the total incompatibility between Irix 15mm and the new R6 mark 2. I hope for a firmware update on Canon side but if ever somebody has a temporary fix, that would be great. In the end we would just need to be able to...

Iphosia by Contributor
  • 4949 Views
  • 23 replies
  • 0 likes

Birding Lens Recommendations for EOS Rebel T5

Hey everyone, I'm new to the site.  I've had my Canon for years and my strongest lens is 300mm.  I've been taking many photos of birds for the last couple of years and would appreciate a recommendation for a stronger lens.I've been enjoying it, but I...

EF 17-40mm f/4L USM on EOS M50?

Hi I’m looking to buy a new lens for my camera? Does anyone have any idea if the Canom EF 17-40mm f/4L USM ultra wide angle lens will work with my eos m50? Would I just need it and an adapter or will it not work at all? If it won’t work at all what a...

Skiple by Contributor
  • 5549 Views
  • 23 replies
  • 0 likes

2nd Time, 24-105 f4 L Error 01

Hello! A couple years ago, my beloved 24-105 f4L version 1 started making noises and erroring out (error 01), and refused to shoot. I sent it in for repair and after $380, was back out shooting. Fast forward four years to today, my lens is giving me ...

jhweld by Apprentice
  • 1010 Views
  • 3 replies
  • 0 likes

RF 28mm 2.8 vs RF 24mm 1.8 for travel?

Hi all. I’ve had a Canon R8 for almost a year. So far the RF 35mm 1.8 has been by far my most used lens for general day to day purposes.However after a couple trips under my belt, I’ve found myself in situations where I wished I had something a bit w...

mannap36 by Apprentice
  • 3633 Views
  • 5 replies
  • 0 likes

R6 lens advice

Hi all. I am planning to move from my 90D to an R6. I dont know what decision to make about lenses. I am mostly into nature, landscape, bird/wildlife, and portraits of friends and family.I have an EFS 17-55 2.8 (which is amazing), an EF 50mm 1.8, an ...

uraksha2 by Apprentice
  • 517 Views
  • 2 replies
  • 0 likes
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