[pure-silver] Re: 4x5 ground glass on Cambo

  • From: Bob Younger <ryounger@xxxxxxxxx>
  • To: pure-silver@xxxxxxxxxxxxx
  • Date: Sat, 8 Sep 2012 20:00:07 -0700

My problems with the Beattie fresnel occurred with wide-angle lenses. If
most of your work is in the normal to long range then it may be helpful.
Bob Younger


On Sat, Sep 8, 2012 at 6:32 PM, Myron Gochnauer <goch@xxxxxx> wrote:

> With a Toyo lupe (8X?) it seems easier to focus than with a coarse GG.
>  I've heard that brightness and "contrast" or ease of focussing are
> inversely related, but at least with relatively high magnification, the
> Yanke GG seems easier to focus.  With the Toyo, the fresnel lines are
> visible, but not very prominent.
>
> Myron
>
>
>

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