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DayStar Imaging Focal Reducer for Daystar Quark

DayStar Imaging Focal Reducer for Daystar Quark

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in In stock (2)
0.22 kg
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DayStar's Imaging Focal Reducer can give you more field of view in your images. 2" to T mount, with included T extension tube for even more reduction.

With a T-mount camera connected directly to the reducer, the focal length is cut in half - 0.5X. Add the 20mm extension tube for 0.33X. Even better is to combine the T-thread Interference Eliminator (sold separately) with the reducer for an interference-free 0.38X effect.

Please note that the obtainable field of view is usually limited by the etalon clear aperture; Quantum filters will result in a larger usable field than Quark or Ion.

Allows full disk imaging with SR127 and 2/3" monochrome CCDs such as ICX625, ICX655, IMX250, IMX264.


Focal reducer specifications:

Four elements in two groups.

36mm clear aperture.

Front: Male 2" eyepiece drawtube.

Rear: Male T thread (M42x0.75)

Flange to flange distance: 5mm.

Overall length: 38mm.


Extension tube specifications:

Front: Female T-thread (M42x0.75)

Rear: Male T-thread (M42x0.75)

Flange distance: 20mm

Overall length: 25mm

Knife edge baffles for superior contrast.

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