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05-09-2007, 12:01 PM   #16
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QuoteOriginally posted by varnco Quote

Say I go with the 77MM 1.7, and use a 1.4x teleconverter... what happens to my f? Does it go to about a 2? 2.5?

You will lose one full f stop. So that gives you a 2.5 lens if my math is correct.

NaCl(and if it's not, one of the friendly people here will correct it! )H2O


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