Re: 140/155 4” Field Flatteners
Roland Christen
The 67PF flatteners will cover 67mm with hardly any vignetting. In fact any of our flatteners will do it.
Rolando
-----Original Message-----
From: Dale Ghent <daleg@...> To: main@ap-gto.groups.io Sent: Fri, Nov 27, 2020 3:50 pm Subject: Re: [ap-gto] 140/155 4” Field Flatteners /dale
On Nov 27, 2020, at 16:20, Roland Christen via groups.io <chris1011@...> wrote: -- Roland Christen Astro-Physics
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