Re: ATM illuminated finders

["Doug Tanaka" <dtanaka@seanet.com>]

Hi Pete,

One of the primary features of a Telrad is that the bull's-eye circles move
across the glass when you move your head so the circles remain the same,
relative to the sky, no matter where your head is.  If you make your own by
engraving a pattern, you'll also need to have another set of crosshairs or
circles a bit of a distance away for accurate alignment since the engraved
pattern won't be able to move across the glass.  If you can see crosshairs
without illumination, you could try just putting two sets of crosshairs in a
tube and mount the tube to your scope.

Doug Tanaka

> I have also seen mention of a 'HUD' type finder called a Telrad. Are there
> similar finders around? I bought for £3.50 a delightful 'gizmo' the other
> day, a personal protection light for clipping to your pocket when walking
> along dark roads. The inside workings measure 45mm x 22mm x 10mm. It has a
> small on/off button that sets a tiny but bright bulb flashing red once
every
> 11/2 secs It's powered by a cadmium(?) battery about 20mm dia. The
workings
> weigh next to nothing at 6 grams . It seems to me that it would be
possible
> to have the light illuminating the edge of a piece of perspex with the
face
> engraved with either concentric circles as the Telrad or cross hairs as in
a
> gun sight and make a very light (sorry!) finder.
> Regards, Pete Willmin