February 27, 2010

10.02.25 .... Focusing Rail



In high magnification closeup (macro) photography - it is very difficult to focus using the camera lens.

It's best to move the entire camera setup as a unit. A focusing rail is designed for this purpose. The camera is attached to the platform with the screw just over the word "minolta". Turning a large knob [hidden] moves the finely geared chrome rail. After you reach agreeable focus, use the knob marked "clamp" to lock it in position. The moth wing photo on 10.01.20 here was taken using a focusing rail.

This Minolta brand rail from the 1980's is a very nicely made one that can sometimes be found used. The red stripe is a reflection of a red room curtain. Looks like a nice industrial sculpture!

Nikon D300 with 55mm f3.5 micro lens at f11 1/200s ISO 800. Flash bounced off ceiling.

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