EF & RF Lenses
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Clean Lens Case LP1222 properly

Hi there,  The lens case that shipped with my EF16-35 f/2.8L III USM got a little dirty. It's the LP1222. Can I throw it in the washing machine without risking any damage?  -robotron

robotron by Apprentice
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Power Diaphragm Unit EF100/2.8

Hi guys, After having issues with the aperture of the above lens I did some research to find out that this is a well known problem and I have changed the Power Diaphragm at the Canon shop. Now I'm wondering if this is a problem that is bound to happe...

18-55 AF working fine but zoom rig is Stiff

Hello all,  Greetings!  I have a Canon 1300D with 18-55 lens, (warranty expired) Month back, Lens has accidentally fallen on the ground which caused a crack on the body and AutoFocus was not working. I took it to repair shop and replaced its body wit...

Broken Focus - 50mm f/1.4

Hi,I bought a Canon 50mm lens f/1.4 USM and it got hit a few days after. As soon as that happened, it started making some noise when I tried to AF, without focusing at all, and in MF mode I can move the ring, but it wont make any change. Here I have ...

7 laws of lenses

The online Photographer's 7 laws of lenses:https://theonlinephotographer.typepad.com/the_online_photographer/2019/02/mikes-seven-laws-of-lenses.html I won't mention any names but:"Ctein's Axiom indicates that you can detect differences in testing tha...

Can Canon USM motor interchangeable?

While I was trying to fix a Canon 17-85mm IS USM lens, I found out it was a USM motor failure. I had a couple of other lens disassembly, such as 100-400mm. My feeling was the USMmotor of them are the same. I regret that I did not measure the diameter...

fsong00 by Contributor
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  • 10 replies
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80d Lenses?

I think I’ve decided to finally bite the bullet and purchase the 80d.How’s the 18-135mm that comes in the bundle? Should I spring for this or go with the 18-55mm and purchase a separate zoom?Also looking for a good portrait.I’m upgrading from my begi...

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