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Filter Wheel, 1.25"

Filter Wheel, 1.25"

Price: $249
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Radial Guider

Radial Guider

Specifically for use in prime focus, deep-sky imaging or astrophotography with Schmidt-Cassegrain telescopes, the Radial Guider is compact and sleek in design.  This accessory makes it possible to simultaneously photograph and guide through the optical tube assembly of your telescope.  The radial guider also eliminates the problem of differential flexure, because you're both guiding and photographing through the telescope.

The radial guider is compatible with Celestron's C5, C8, C9, C11 and C14 telescopes and comes with a unique prism angle adjustment screw.  It must be used with a guiding eyepiece, camera T-mount and drive corrector(dual axis is preferrable).  Primarily for use with catadioptric telescopes, it also works on refractor telescopes having adequate back focus.

This guider is a tremendous improvement over conventional off-axis guiders.  Not only is the angle of the prism tunable, but it also maintains a fixed rigid camera orientation while still offering users the freedom to move the guiding eyepiece radially about 135°.

Price: $258
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Reducer Lens 2x for NexImage

Celestron NexImage Reducer Lens increases your field of view by over two times for wide field lunar and filtered solar imaging. Celestron Reducer Lens for Celestron NexImage Solar System Imager replaces the 1.25" barrel and threads directly into Celestron NexImage Imager housing.

Price: $34
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ZWO anti-dew heater (D=50mm)

Anti-dew heater for ZWO cameras (Ring diameter 50mm)

The ZWO anti-dew heating strip is used to prevent dew on the front window of ZWO ASI cooled cameras.

Price: $31
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ZWO EFW mini motorized filterwheel 5 positions

The EFW mini is the smallest and most lightweight 1.25″ Electronic Filter Wheel in the world! Handles 5x1,25" or 31mm (unmounted) filters. Weights 300g only. Thickness is 20 mm.

Only one USB Cable is enough to power up the EFW, the max power consumption is around 120mA@5V, so you can powered it through the USB port. 

The Electronic Filter wheel can be rotated in both counter clockwise or clockwise direction for filter selection.

The distance between the filter and sensor is only around 10mm when you connect it to ASI1600. So 1.25″ filters won’t have vignetting up to F5 focal ratio scope and 31mm filter won’t have vignetting up to F2 lens

Price: $308
Quantity:
Price: $386
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