| Info | Votes | Messages | More Stats |
 Up One Level
|
 | ||||
Subject: Re: vote by rcwik By: Anonymous (xxx.xxx.154.74) In Reply to: rcwik (Original Vote) Date: 11/25/2002 02:32:55 am PST >... The point that finally convinced me was that the 3mm Radian has a 60 AFV. The Pentax if barlowed to 3mm would have a FOV of about 37.5 degrees. ... -------------------------------------- Your barlow lens cut down your apparent field of view ??? Actually a Pentax XL 5.2 has an AFOV of 65°, if you barlow it - it still has 65° AFOV (not 37.5). The only thing which changes is the real FOV. The difference in FOV in your scope is as follows: TV Radian 3 mm FOV 0.148° , Pentax XL 5.2 mm is 0.277° (with 2xbarlow it's 0.138°) , so the difference is only about 6.5 % in FOV. Page 1 of 1 | ||||||||
