EF & RF Lenses
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AF Microadjustment

Has anyone had any problems with the Microfocus adjustment point drifting dependent on the temperature?This happens on my 600mm lens alot.

AlanP by Apprentice
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  • 3 replies
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Telephoto lens

What lens is recommended for wildlife shots?  I currently have a 250mm but would like something that can get closer.  I am looking at the 400 but have never used one so I do not know if that will be enough.  My shots are usually 100-200 yards away.

fjord24 by Apprentice
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  • 6 replies
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EF 70-300mm f/4-5.6 IS USM lens.

I have a 60D camera and I just purchased the EF 70-300mm f/4-5.6 IS USM lens because I thought it might be a good addition to give me a bit more reach than my 18-135mm. I noticed, in AF, the zoom will not fully retract. If I switch to MF I can retrac...

Cap'n 100m L lens

Why won't my 100mm W/ macro (L lens) stay focused on close ups. I have the IS-off and the focus on manual. After focusing, the focus mechanism acts like it is searching and goes in and out of focus and does not settle on anything.

Andyzem by Apprentice
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  • 3 replies
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Resolved! EOS T3iLenses

I have an EOS T3i. Have started to take pictures of landscapes but would like to be able to zoom in on distant objects without losing the surroundings. Any suggestions as to the lens. I do consider myself a beginner. 

Lens

Has anyone tried out the new Sigma 50-500mm OS lens on a Canon body?  If so, what do you think?

BJF by Contributor
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  • 0 replies
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