EF & RF Lenses
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Resolved! Adapting EF lenses to an EOS R6 Mark II

Are there any EF lenses that don’t have a 1.6x crop when you adapt them to an RF mount? For example, I want to purchase a 24-70 to be able to take astrophotography pictures but also be able to do a wide range of shots. I don’t have the budget for an ...

How to disassemble a EF 35-75 f3.5-4.5 ?

Hi,I'm trying to repair a Canon EF 35-75 1 : f3.5-4.5. It has a broken focus mechanism. I have looked on Youtube and cant find a video that shows a full disassembly. I have it partially disassembled it but I can figure out the steps to get the remain...

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Resolved! RF 100mm f/2.8L IS Macro lens on an R7 camera body

Hi, I understand the geometry associated with the use of a FF lens on an APS-C camera body and a previous thread thoroughly explores that subject. My question: what is the effect on photo quality, if any, using a FF lens with a small sensor?Thanks!

rickbb by Apprentice
  • 3706 Views
  • 8 replies
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Problem with Canon EF-S 55-250 IS STM

I bought the lens recently. But I was getting Err 01 ( connection between the camera and lens is faulty). Upon some investigation I found out that the aperture blades are not moving as supposed to. They function completely okay both in max zoomed in ...

kutty7 by Apprentice
  • 844 Views
  • 2 replies
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Resolved! RF 100-400mm lens image stabilization stopped working

My RF 100-400mm f5.6-8 IS USM has been working fine with my EOS R10, but today the IS function stopped working. The Stabilizer switch on the lens is in the ON position, but the waving hand symbol on the screen does not appear, and in the menu, the on...

nguyenhg by Apprentice
  • 2347 Views
  • 5 replies
  • 0 likes

Blurry photos with Canon 70-200 2.8 EF

I am trying to use my 70-200 telephoto at continuous shooting and getting burry images. I even upped the ISO to allow for faster shutter speed to capture motion. Here are my settings and photo. iso640 100mm 2.8 3200 sp 

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MsKT74 by Contributor
  • 4395 Views
  • 21 replies
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Resolved! Sudden focusing issue on RF 24-105mm f/4L IS USM

Hello everyone,I'm new and hope I'm posting this in the correct place I took some pictures today with my RF 24-105mm f/4L IS USM lens on an EOS RP. It worked fine, but all of a sudden now, in the rage of 24-50mm or so, the left side of the view field...

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peter_b by Apprentice
  • 4454 Views
  • 11 replies
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Would you travel with just one lens?

I'm heading to Japan in a few months, and thinking about taking only one lens. I'm picking up the Canon 32mm f1.4 or Sigma 30mm f1.4 canon ef-m for my EOS M50 Mark II and contemplating being crazy and only bringing it. Why? One, I'm packing VERY ligh...

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