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  Piggyback Camera: Astronomy: Piggyback Camera - FILM AND EXPOSURES
Posted on Saturday, December 04 @ 17:43:47 CST by astronomy
 
 
  Piggyback Camera

FILM AND EXPOSURES

The ideal subjects for piggy-back photos are constellationg Milky Way panoramas, larger nebulas and galaxies, and comets. These are best shot with an ISO 400 or 800 film and lenses set to an aperture f/2.8 to f/4.

Lenses with settings are available, but most perform poorly when used "wide open" at f/1.4 or f/2.
Stars appear bloated, especially at the corners of the frame.

Exposure times depend on sky conditions. In a dark sky, 10 to 20 minutes at f/2.8 with ISO 800 film records an astonishing amount of nebulosity.

 
 
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Astronomy: Piggyback Camera - THE PIGGYBACK PLATFORM

 

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