EF & RF Lenses
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EF 100-400mm f/4.5-5.6L IS II USM Lens won’t autofocus

Hello, I have a 100-400 5.6 ii, it worked fine 2 days ago but now all of a sudden it won’t autofocus.  I can still manually focus but with autofocus I hear the motor and it searches for focus but nothing.  I tried it on my 5d4 and 7d with same result...

ryanh by Apprentice
  • 504 Views
  • 3 replies
  • 0 likes

EF-S IS 18-55mm Autofocus trouble on EOS 550D

Having a strange problem with my EF-S IS lens. I bought it secondhand with an EOS 550D body about 5 years ago. Recently had to replace the body due to shutter and mirror failure, but the lens is having trouble autofocusing.It worked perfectly on the ...

Mox83 by Apprentice
  • 459 Views
  • 1 replies
  • 0 likes

Resolved! EFS 18-55 seems to focus correctly, but unusable results

Bought a Rebel T7 used for astrophotography and so I've been using it solely with manual focus. Just started playing around with some daytime shots and am finding that I can't for the life of me get a clear AF shot with this lens. I went out this aft...

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70-200 f/2.8L blurry at 200mm + low aperture

I have been using this lens with my 6D for years (admittedly not regularly - only when I travel), but have recently noticed that things get blurry (moreso toward the outer edges of the image) at 200mm with lower apertures. I can already see the blur ...

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izzi by Apprentice
  • 2753 Views
  • 13 replies
  • 0 likes

I’m considering getting rf 100mm f2.8L macro but..

For crop sensor,r10 this lens seems bit too long for portraits , not long for sport or wildlife . I’m mainly interested in its 1.4 macro but that money would need to be utilised more than just for that . I already have 35 mm 1.8 but 0.5 macro, and 10...

Resolved! Canon RF 70-200 2.8 inner elements shaking

Just got my new 70-200 2.8 RF today and this is what happening. Shake baby, shake.Things I tried:- IS off, wait sometime, turn off the camera;- replace the battery (used 7.2V canon original);- replace the camera (R5 and RP);- firmware update;This hap...

C37_ by Apprentice
  • 3342 Views
  • 8 replies
  • 0 likes

Resolved! Canon EF 24-104L pair with a R8 body

I am a weekend photographer shooting mainly holiday pictures whether it is landscape, portrait and animal. I am using a 5D Mark 3 with a number of EF lenses such as  EF 24-105 F4L, and 70-200 F4L.  Now i am retired and thinking of selling the 5D and ...

bslkam by Apprentice
  • 2083 Views
  • 3 replies
  • 0 likes

Resolved! EF 100-400MM F/4.5-5.6L IS II USM Blurry photos on EOS 60D

i use Canon 60D and until today with simple lenses.I wanted to step on the level and i buy super lens - Canon EF 100-400MM F/4.5-5.6L IS II USM and it should be one of the highest level in lenses. the photos are ok but not sharp like photos i see on ...

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Traveller by Contributor
  • 6377 Views
  • 26 replies
  • 0 likes
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