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1 x Off-Axis Guider.
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This off axis guider is in good used condition. 33mm back-focus. T2 thread on top with sliding function for focusing.
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The new OAG-L has a large prism size of 12 12mm, far bigger than M68 OAG. The bigger clear aperture brings wider field of view in guiding. It is easy to use, and suitable forusers who are interested in long focal length photography.
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The new Atik Off Axis Guider fits directly to the Atik EFW2 Motorised filter wheel. Clear Aperture: 54mm.
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Three positions (3 x 120°) can be used for the guiding tower. The two holes not in use can be closed to prevent straylight from entering the system. With an optical length of 16.7 mm, it also needs not much back focus.
eBay
The new OAG-L has a large prism size of 12 12mm, far bigger than M68 OAG. The bigger clear aperture brings wider field of view in guiding. It is easy to use, and suitable forusers who are interested in long focal length photography.
eBay