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Photographic
tests of Unique Photo Supra,
Schmidt
focus, and Autoguiding
Uploaded 3/10/03
The following images
are test shots taken a day before first quarter moon up at Happy Jack Arizona, at the
new Clear Creek Canyon Observatory. After the unwanted gradients
from the nearby moon were removed, the resulting images show
promise for future imaging. All shots are short 5 minute exposures,
or combinations thereof. Also tested this evening was a new focus
setting on the Schmidt, to render the smallest possible star
images. In addition, this is the first time the mounting has
been setup for guiding those grueling long 5 minute exposures
with the ST4.
Click
on the thumbnails for a larger 800 wide image.
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The
sword region of Orion, 2x5m exposures on Kodak Supra 400. Plenty
of red nebulosity fills the field. |
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Rosette
nebula, 5 mins on Supra. Note the tattered ring to the upper
left, an ancient SNR. |
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The
Lambda Orionis Buble fills the entire field except for the corners
in this image, 2x5mins. |
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Focusing
a Schmidt camera. To do this briefly, an eight inch newtonian
is focused on a star at high magnification, and pointed into
the front of the schmidt. Then the film holder seen here with
some magazine paper is bent until it appears sharp in the occular
of the eight inch. Crude, but very effective. |
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The
eight inch schmidt, photograhed the next morning on its homemade
mount. Ive added tons of dew heaters since the last shot. |
Instrument: 8 Inch f/1.5 Schmidt Camera
Date: 3/9/03
Platform: Homemade GEM, with Byers Starmaster Drive
Exposure: 5mins
Filters: None
Location: Happy Jack, Arizona
Elevation: 6800 ft.
Sky: Seeing 9/10, Transparency 8/10
Outside Temperature: 0 C
Processing Tools: Photoshop, Maxim
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Fuji's New Formulation of it new Super HQ100
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First Tricolor shots with 2415
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