[APML] Photographic test of Meade 8" f/4 Schmidt-Newton

[Walter Koprolin <a9125657@unet.univie.ac.at>]

Hi everybody!

This might be of interest to the group:

I recently had the opportunity to shoot two 35mm astrophotos with a Meade
8" f/4 Schmidt-Newton. I have written a short test report about it:

http://www.astro.univie.ac.at/~koprolin/Art/SN8/

As you can see, the telescope is problematic in astrophotographic use. The
images suffer from vignetting and distorted stars near the edges. If
bright stars are present near or within the photographed field, multiple
reflections and Schmidt ghosts also become a major hassle.

All these artifacts except the radial distortion of stars can be
eliminated or nearly eliminated during image processing, but some of them
only with considerable effort.

  Walter Koprolin
  Gallery of Astrophotography & CCD, Observation Reports,
  Telescope Testing: http://www.astro.univie.ac.at/~koprolin


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