Sufficiency of 7.5° acceptance angle?

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luxikon

luxikon

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Is the 7.5° acceptance angle of the teleconverter of a Lunasix F sufficient for a precise zone system metering?
 
Q.G.

Q.G.

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Yes. You do not need a 1 degree spot.
The important bit is that you see, and thus know, what you are measuring.
 
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