Not Your Everyday Banana

by Bart Arondson

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4
votes
2answers
141 views

Is it possible to DIY adjust the focus ring distance scale of a lens?

I have a particular lens in mind, but is it generally possible to do this adjustment? Of course there are a lot of lenses that don't have any distance scale to begin with. Many lenses have the scale ...
1
vote
3answers
189 views

When a lens and camera are callibrated together, which is changed, and might other lenses be adversely affected?

I wonder what exactly is the calibration of a camera body and a particular lens. I know the effect, but how it is achieved? I recently bought 80-200 (the two-ring version), I was waiting for too ...
3
votes
1answer
225 views

Why 5-50x focal length for autofocus micro-adjustment?

When we do an AutoFocus Micro Adjustment session, the general opinion is to set the focusing target at 25 x focal length (or somewhere in the range of 5-50 x focal length). Why is so? What happens if ...
2
votes
3answers
935 views

Is it possible to physically calibrate a Nikon 50mm 1.4G

Having just bought a Nikon D800, i decided to have a play with the 50mm 1.4G on it. I noteced it was back-focusing by about 2cm so tweeked the AF fine-tune. however thats now maxed out at -20 and its ...
3
votes
4answers
2k views

Which lenses typically don't focus properly on the Canon 60D?

I currently have the 18-200mm kit lens for my canon 60D. I am thinking of getting the 10-22mm wide angle lens as a second lens. So far with my kit lens I havent experienced any focusing problems or ...