Re: [APML] New Schmidt Camera image: Machholz onSaturday

[George Anderson <tillerman1@videotron.ca>]

Why put the camera inside?
Why not a diagonal followed by a relay lens/ field flattener combo? the
direction of focal plane curvature would then be the same as a regular
newtonian
No heat build up or cables inside the tube and the face of the camera
body could be mounted just proud of the tube where the film loader
opening is presently located.
And the central obstruction would be no greater than it is currently.
Just a thought...
Too bad Roland isn't on the list anymore, I'm sure he could shoot this
concept full of holes in a heartbeat.  :^)

George Anderson
Montreal Canada

Clear skies and good health

KGKIRKLEY@aol.com wrote:
> 
> In a message dated 3/15/05 9:29:50 AM, comets133@yahoo.com writes:
> 
> > Bradley, intersting point, I think film will be around
> > for another 20 years or so, but it will be like Kodak
> > Max film, useless for skyshooting but as general in
> > nature as possible for taking shots with those
> > cardboard film cameras.  Soon it will be time to put
> > the schmidts on the museum shelf!
> >
> > Chris
> >
> 
> Chris, et al:
> I hope not.
> As they say, when there's a will, there's a way!!
> I think someone will figure out how to replace the Schmidt's film
> holder with a CCD unit which will incorporate a built in field
> flattener. Yes, it will probably mean reworking the invar rods and
> spider and may be costly........but just think of it.....a 300mm f1.5
> Schmidt with 35mm sized (or larger) chip. While typical Schmidt film
> exposure times are in the 5-10 minute range, with a CCD it might be in
> the "a couple of minute" area.
> 
> Kent Kirkley
> 8 inch f1.5 Celestron-Epoch Schmidt
> (that refuses to become an umbrella stand)
> 
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