Quote:
Originally Posted by Outcast
I've recently acquired a Baader MkIV Zoom EP & it's dedicated Barlow.
On reading the instructions, it advises attaching the zoom element to the 1.25" nosepiece which renders a 2.25x magnification.
The Barlow will physically attach to the EP without use of the 1.25" nosepiece but, I'm unable to find any info on what this does to the Barlow magnification factor.
Does anyone know or, can venture an educated theory on what the resultant magnification might be attaching it directly to the EP lens element?
Cheers
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It's easy to find out the exact magnification of any barlow with any eyepiece:
--Time the passage of a star (any star anywhere in the sky) from edge to edge in the eyepiece. Insert Barlow and time the passage of the same star from edge to edge.
--the ratio of the first timing to the barlowed timing is the magnification factor of the Barlow.
Example: Timing 1 is 4 minutes and 12 seconds. Timing 2 is 2 minutes and 6 seconds. 252/126 = 2X