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4. e infinity setting.
5. he telescope so that it points in that
6.
7.
8.
.
Set the shutter speed to the “B” setting and focus the lens to th
Locate the area of the sky that you want to photograph and move t
direction.
Find a suitable guide star in the telescope eyepiece field of view. This is relatively easy since you can
search a wide area without affecting the area covered by your camera lens. If you do not have an
illuminated cross hair eyepiece for guiding, simply defocus your guide star until it fills most of the field of
view. This makes it easy to detect any drift.
Release the shutter using a cable release.
Monitor your guide star for the duration of the exposure making the necessary corrections needed to keep
the star centered
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R camera attached to the telescope without an eyepiece or camera lens in place. To attach your SLR
1
2
3 T-adapter threads.
4 the same as you would any other lens.
Short exposure prime focus photography is the best way to begin recording celestial objects. It is done with
the SL
camera, you need the T-adapter and a T-Ring for your specific camera (i.e., Minolta, Nikon, Pentax, etc.).
The focuser for the refractors and Newtonian have a built-in T-adapter and they are ready to accept a
35mm camera body. The T-Ring replaces the 35mm SLR camera’s normal lens. Prime focus photography
allows you to capture the entire solar disk (if using the proper filter) as well as the entire lunar disk. To
attach your camera to your telescope: See note about digital cameras below.
Remove the eyepiece from the 1
1
/
4
" eyepiece holder.
Unthread the 1
1
/
4
" eyepiece holder from the focuser assembly. This will expose the male thread of the built-
T-adapter.
in
Thread the T-ring onto the exposed
Mount your camera body onto the T-Ring
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o attach a digital camera to your telescope you will need the Universal Digital Camera Adapter
ched to the telescope, you are ready for prime focus photography. Start with an easy
bject like the Moon. Here’s how to do it:
. Load your camera with film that has a moderate-to-fast speed (i.e., ISO rating). Faster films are more
t, slower films are
• T-Max 100
Use a T-Adapter ( # 93633-A) which threads on to the back of the telescope. The T-Ring threads onto the
T-Adapter and then mount your camera body onto the T-Ring like you would any other lens.
Using Digital Cameras
T
( # 93626). The adapter allows the camera to be mounted rigidly. You will follow your camera
instructions for capturing images as the information below relates to 35mm SLR cameras.
With your camera atta
o
1
desirable when the Moon is a crescent. When the Moon is near full, and at its brightes
more desirable. Here are some film recommendations:
• T-Max 400