Why is the Canon 24TSE not sharp at infinity when set at f4?

Started Nov 4, 2012 | Questions thread
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DavidSvensson Senior Member • Posts: 1,374
Did you focus using the optical viewfinder or live-view?

If you used the optical viewfinder chances are there could be a misalignment between the position of the viewing-screen (aka the matte screen or focusing screen) and the sensor. I had that problem on one of my cameras, and got it fixed by canon service.

With a short focal length lense the sensitivity to such misalignment is the largest.

David

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