Re: [APML]: OM-1 and the Varimagnifier (sp)

[Steve Bell <sb635@delphi.com>]

Frode Tyholdt wrote:
> 
> 
> Then you haven't found out that you have to focus the varimagni on the
> focusing-screen before you can use it. Any deviations from perfect sight
> will therefore be canceled and you may use the varimagni just as good as
> anybody else without glasses. I use glasses/lenses myself and haven't had
> any trouble using the varimagni with my bare eyes. I just have to focus it
> correctly.

All very good info. The way you focus the VariMagni finder is by turning
the diopter adjusting ring under the eyepiece. Slip the unit onto the
slots on the OM-1's viewfinder, shine the camera, without a lens on it,
at a bright light and rotate the adjusting ring until the focusing
screen appears as much in-focus as possible.

> An even better solution, if you want to focus on your matte-screen, is to
> make a device with a telescope occular. As I can remember the varimagni
> just magnifies 2.5X which is not enough.
> 

I believe the pentaprism of the OM-1 itself provides 5x, and with the
2.5x VarMagni finder unit attached you are seeing 12.5x.

-- 
Clear skies,
Steve Bell
email: sb635@delphi.com
Astrophoto page: http://people.delphi.com/sb635