[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
Re: [APML]: pointsource/filters -Reply
The Astro-Photography Mailing List
------------------------------------
Chuck, that is an H-Alpha Pass filter I was referring to (forgot "Pass").
So you've used point source? I don't mind the physical contortion
needed to use it, but does it produce results? Precise focus?
>>> Chuck Vaughn <aa6g@aa6g.org> 09/17/98 11:13pm >>>
The Astro-Photography Mailing List
------------------------------------
Capt Donald McKenzie wrote:
> > 2. If I use a Deep Sky or H Alpha filter b/w the camera and guider
(as
> with the Lumicon set up) will I be able to see what I need to, to focus,
> through the filter when I temporarily place the point source on?
Deep Sky yes, H-a no.
Chuck <aa6g@aa6g.org>