Red and Blue

by Gordon

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Focus is the mechanism of converging light from a point light source onto an imaging plane by a lens.

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3answers
86 views

How to reduce noise shown in LiveView when photographing in the dark?

At night, when I want to take photos, I usually use LiveView to focus instead of the optical viewfinder. So I set my camera on a tripod, go to LiveView and use manual focusing to get the focus. But ...
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1answer
282 views

Nikon 16-85 VR focus noise problem?

My 16-85 VR is doing some weird noise during focus, manual or auto. It's like an hiss. I asked in a local shop and they said it can be some microdust inside the lens. But I'm a little worried it can ...
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1answer
64 views

My NIKKOR 55-200mm lens behaves like it is not attached to the camera, even though it is attached

I just purchased a Nikon D5500 with the 18-55mm and 55-200mm lenses, along with one digital high-def 2.2x teleconverter and a digital high-def .43x super wide angle lens with macro filter. The ...
3
votes
0answers
77 views

Background warping through foreground defocus

I came across this effect the other day, and have spent the better part of the last week trying to figure out exactly what is happening. When photographing two layers, with the foreground in front of ...
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0answers
84 views

How to do focus stacking with Sony A7?

It seems that software like helicon remote or EOS utility which allow you to pick focus points remotely make focus stacking so much easier. I couldn't find anything like that with Sony A7. Even's ...
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0answers
33 views

Mamiya M645 Super not focusing right

A friend of mine gave me her M645 Super with the note that something's not right about it. Quickly realized that it doesn't focus right with it's 80mm lens. Basically you can't close focus within 5 ...
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0answers
126 views

Samsung NX1000 focus ring does not work, can't get off manual focus mode either

I bought a used Samsung NX1000 last night, everything is great but it's stuck on Manual Focus mode. The Single Auto-Focus [SAF] and Continuous Auto-Focus [CAF] are greyed out no matter what I try. ...