Re: [APML]: 2X converter

["Thomas W Earle" <twade@bmi.net>]

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Do you have the 4" focuser or the 2.7" focuser.  Unfortunately, I have not
had time to "play" with my 4" focuser setup, but I would suspect there would
be vignetting with both focusers, especially the 2.7" since it has quite a
bit of vignetting already.

Actually, I would stick with 35 mm when using the 2x barlow, and the Pentax
6x7 the rest of the time if possible.

...Wade...

-----Original Message-----
From: Greg Mueller <mueller@silverlink.net>
To: astro-photo@nightsky.com <astro-photo@nightsky.com>
Date: Sunday, September 27, 1998 12:30 PM
Subject: [APML]: 2X converter


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>
>Has anyone that is using the AP 155mm EDF  and Pentax 6x7 combination
>tried the 2x converter? Does it cause vignetting or other objectionable
>problems? Seems like a good way to "enlarge" some of the smaller DFO's
>out there.
>
>--
>Greg Mueller   Port Gamble, Washington
>Amateur Astronomer, Machinist, Filmnut
>
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