RE: [APML] IC1396 CCD with Schmidt-like FOV

["Jeff Ball" <jeffball@zoominternet.net>]

Rob,
That is very nice.  Thanks for posting the setup pictures as well.  I am
curious as to why you would not shoot Halpha on the 180mm setup?  I
don't know much about this and I am trying to understand when Halpha is
appropriate and how to assign color to deeper exposures with Halpa and
deep luminance shots.
Jeff Ball

> -----Original Message-----
> From: owner-astro-photo@seds.org
> [mailto:owner-astro-photo@seds.org] On Behalf Of Robert Gendler
> Sent: Saturday, August 03, 2002 10:13 AM
> To: astro-photo@seds.org
> Subject: [APML] IC1396 CCD with Schmidt-like FOV
>
>
> Hi all,
> Using Nikon 180mm and 300mm lenses and the ST10
> I've created a widefield color image of the IC1396 complex.
> The inner detail of the nebula was imaged with the 300mm lens
> (using HA and red as luminance) and the outer portion was
> taken with the 180mm giving the generous FOV (straight RGB).
> I believe the FOV and detail compare favorably with schmidt
> camera and medium format film images of this object which
> demonstrates that large field color imaging can be done
> successfully with CCD and camera lenses. The widefield image
> is at http://www.robgendlerastropics.com/1396Large.html
> A cropped higher res version is at
> http://www.robgendlerastropics.com/1396Small.h> tml
> The lenses
> were mounted on the ST10 using Steve Mandels
> adaptor and were secured on the mount using two losmandy
> adjustable tube rings. The 150mm ring fit perfectly around
> the ST10 while the 125mm ring
> supported the lenses. I have two pictures of the setup at
> http://www.robgendlerastropics.com/camera300.j> pg
>
http://www.robgendlerastropics.com/camera180.jpg
Enjoy!

Rob Gendler
Email: robgendler@att.net
Web site: http://www.robgendlerastropics.com/


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