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lost focus

I have a 3 month old EF 24-105mm f/4L IS II USM that will not focus on either autofocus or manual. When you use auto you can hear lens try to focus and then gets to a point and it looks like you are looking through crystal. Manual ens up same way. Th...

chief by Rising Star
  • 2231 Views
  • 3 replies
  • 0 likes

18-55mm lense trouble

I have a Canon Eos Rebel T6 that I literally just got today. I'm trying tofigure it all out and admitelly should have read the instructions first. So what I did was put my 18-55mm lense on, correctly I might add. I took a few shots that way just to g...

Developing Focus Delay/Failure 300mm f/4 L IS

This lens is very sharp, but is progressively refusing to start focusinig until I "kick start" it by manually rotating the focusing ring to an approximate focus point, then it will wake up and start focusing correctly.  Happens infrequently, but incr...

Quick tip on Manual Focus and STM Lenses

(I posted this in general discussion forum but thought I'd cross-post it here) I saw this video of a quick tip on STM lenses and focusing.  This issue must confuse lots of people, and even the presenter says "Review this before contacting support" so...

DanSF by Contributor
  • 2269 Views
  • 0 replies
  • 2 likes

Canon EF 70-200mm f/2.8L USM Lens Focus Creep

Hi, I am using the Canon EF 70-200mm f/2.8L USM Lens on a non-SLR camera in manual mode (no electrical connection).  In this application we set the zoom and focus on the lens and then leave it.  What we are seeing is that the lens drifts out of focus...

svc490 by Apprentice
  • 3260 Views
  • 6 replies
  • 0 likes

EF 70-200mm f/2.8 L IS I vs II

I've owned the 70-200mm f/2.8 L IS I for close to 10 years with the predominant use case of shooting sports on a 7D Mark I.  I'm now moving to college sports and am working on generally trying to "raise my game" a few notches along the way.   I bough...

Resolved! EXTENDER 2X-II OR 2X-III?

Anyone have educated and/or experiential information relative to how much better the MarkIII EF 2X extender is than the MarkII?  Why did Canon redesign it (if they did)?  Will be coupled with EF 300mm f/4 L IS and a 7D Mark II -- maybe sometimes with...

Resolved! Which 24-70mm???

Hi I currently have a 80d but I wil be upgrading to a FF(5d mark iv) by the end of the year. I'm in the process of purchasing a new lens but I am having a hard time trying to decide between the Canon 24-70mm f4l or ther Tamron 24-70mm f2.8 G2. The ca...

bud297 by Apprentice
  • 11560 Views
  • 16 replies
  • 0 likes

Resolved! EFs 24mm Pancake Strange Auto Focus Behavior

Recently got a Canon refurb EFs 24mm pancake lens. But now I'm not sure if it's acting up on me or not. While taking some photos of the sign below the autofocus acted strangely.  I composed the shot and focused using the back button and the image wen...

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