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Zeiss lenses

E

edwinb

Guest
I used a sinar 54 with 'white glass' and 940nm ir illumination and the sharpest focus wasnt near the red IR mark on the lens. using the computer screen to focus has some advantages
 

robsteve

Subscriber
Joseph:

On the Leica lenses, use the DOF scale in the f5.6 to f8 range for your IR focus mark. There is a thread at the top of the page listing which lenses have hot spots. In the Leica range, all the ASPH have the hotspot. Incidentally, the Noctilux works well in IR, as does the 50mm Summicron.

Robert
 
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