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4"
Astrodon Off-Axis-Guider designed specifically to connect directly
to the Dream custom 4" coma correctors. |
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The 4" Off-Axis-Guider (OAG) was custom designed
to connect directly with Dream's custom 4" coma corrector.
It has a narrow profile and connects to the dovetail portion
of the custom 4" coma corrector. This unit will allow guiding
prior to the filters. |
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You can read more about the custom
4" coma corrector with 82mm of back focus by clicking
below. |
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This OAG unit is meant to function with systems as
fast as f3.5 and CCD chips as large as 36mm square. |
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This Off-Axis-Guider is designed to connect to most
filter wheels, through the use of a 3"-24 adaptor, which
is shown near the top of the above photo. The photo to the right
shows the side of the OAG that connects to a filter wheel. |
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The OD of the main body is 5.4". The thickness
is 1.25" for the main body. The unit, as shown to the right,
weighs 1.61 lbs. |
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Other adaptors can be made to allow connection with
other devices. |
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Click the small image to the left to see images taken
while using the custom 4" coma corrector and 4" OAG
in March, 2010. |
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Dream designed the housing of the custom 4" coma
corrector and worked with the manufacturer of the OAG unit specifically
to minimize back focus. Almost 0.25" (6mm) is saved by using
the dovetail Dream has designed. |
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The custom 4" coma corrector and 4" OAG
are shown with the LodeStar autoguider. It weighs only 74 grams. |
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Contact Shane @ Dreamscopes.com
for further information about this or other products. |
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