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  Through Telescope: Astronomy: Through Telescope
Posted on Saturday, December 11 @ 01:10:38 CST by astronomy
 
 
  Through Telescope

THROUGH THE TELESCOPE

By shooting through a telescope, you can add frame-filling snapsliots of the Moon and close-ups of glowing nebulas to your astro-album.



When newcomers to hobby think about taking astrophotographs, this is what they have in mind—attaching a camera to the focus of a telescope, a technique often called prime-focus photography. The lens is now the telescope itself, so a single-lens-reflex (SLR) camera is essential—it allows you to view and focus through the same lens that will take the photograph.

To adapt a camera to a telescope, remove the lens from the camera and the eyepiece from the telescope. Attach a T-ring designed for your camera brand onto the camera's lens mount, then screw the T-ring onto a camera adapter. The tube of the camera adapter often just slides into the focuser of the telescope in place of an eyepiece.

Any telescope mount will do for snapshots of the Moon (and of the Sun—with a safe filter). However, to take long-exposure photographs of planets and deep-sky objects such as nebulas and galaxies, you will need the tracking ability of a sturdy equatorial mount equipped with an accurate drive and variable speed controls.

 
 
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Astronomy: Through Telescope - Moon-SHOOTING THE MOON

 

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