Telescope Reviews: Re: First Pair

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charen
scholastic sledgehammer

Reged: 05/28/05
Posts: 807
Loc: New Zealand

Re: First Pair
05/25/08 03:21 AM

Hi! Nikon have moved to a 'new' method of measuring Afov, which is based on the on the 'ISO 14132-1:2002' and gives a 'narrower' frame of reference so peripheral distortion is not measured.
I found this out when reviewing the 10x56 Nikon Monarchs recently. EdZ. measurements I presume go on the actual measured FOV and lens diameter of 48mm's - not 50mm.
I was using the non Nikon method to measure Afov - TFOV [6.5] x mag [10x] = Afov - 65 degrees.

http://www.cloudynights.com/ubbthreads/showflat.php/Cat/0/Board/binoculars/Number/2269507/page/7/view/collapsed/sb/5/o/all/fpart/1

http://www.nikon.com/products/sportoptics/lineup/binoculars/standard/ex_x35x40x50/index.htm

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Edited by charen (05/25/08 05:14 AM)

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