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  Through Telescope: Astronomy: Through Telescope - Moon-SHOOTING THE MOON
Posted on Saturday, December 11 @ 01:13:21 CST by astronomy
 
 
  Through Telescope

SHOOTING THE MOON

The best subject for trying prime-focus photography is the Moon. Even with slow film, exposures are only a fraction of a second. The size of the Moon in the frame depends on the scope's focal length. A 2,000 mm focal length tern produces a lunar disk big enough to fill a 35 mm frame. With a 1,000 mm system, the Moon will be about 9 mm across—still impressive.



Because the viewing screens of most cameras go dark at such long focal lengths, the principal challenge is to get the Moon in focus. A camera with an interchangeable focusing screen helps. Matte screens made tor telephotolens work provide a brighter image, making it easier to get that sharp lunar snapshot.

 
 
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