Before the rush

Before the rush
by evan-pak

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Wide-angle lenses are the ones with focal length shorter than longest edge of imaging surface (36mm on 35mm full frame, about 24mm on APS-C).

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How can I use a p-iris/autoiris lens on a camera without a connection port?

My team owns a Point Grey camera that we neeed to attach a wide angle lens to. THe wide angle lens we has a cable allowing for autoiris and p-iris control, but the camera doesn't have the autoiris/p-...
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Wide angle macro - why does just releasing and twisting my lens change the focus distance?

I have been looking at wide angle macro photography recently and wanted to try some out using a Sony a55 and my Sigma 10-20. Tried an extension ring, but it did not work; after Googling I discovered ...