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Wide range of high speed and high sensitivity astronomy cameras, mirrors, low-weight Newtonian telescopes and other accessories for serious astronomer all around the world.

ZWO ZWO M42-M42 extender (21mm length )
This adapter can help you to reach 55mm back focus distance
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ZWO M42-M42 extender (21mm length )
$18.00
ZWO ZWO 16.5mm M42 to M48 Extension - T2-M48-16.5MM
This extender can help you to get 55mm back focus distance.
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ZWO 16.5mm M42 to M48 Extension - T2-M48-16.5MM
$18.00
ZWO ZWO D25 IR-CUT Protection Window
Used for ASI174MC to protect the sensor from dust and humidity
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ZWO D25 IR-CUT Protection Window
$18.00
ZWO ZWO D25 AR Protection Window
It’s used for ASI174MM cameras to protect the sensor from dust and humidity.
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ZWO D25 AR Protection Window
$18.00
ZWO ZWO T2-1.25" Filter Adapter # T2-1.25-3
ZWO T2-1.25″ Filter adapter
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ZWO T2-1.25" Filter Adapter # T2-1.25-3
$17.00
ZWO ZWO 2-1.25 filter adapter - ZWO 2-1.25FL
No need for buying another set of filter drawers, the 2”-1.25”filter adapter ring will help you directly fit the 1.25”filter onto 2” filter drawer or filter wheel.
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ZWO 2-1.25 filter adapter - ZWO 2-1.25FL
$16.00
ZWO ZWO D21 IR-CUT Protection Window
ZWO D21 IR-CUT protection window is suitable for ASI120MC, ASI120MC-S and ASI178MC cameras to protect the sensor from dust and humidity.
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ZWO D21 IR-CUT Protection Window
$16.00
ZWO ZWO D21 AR Protection Window
ZWO D21″ AR protection window is suitable for ASI224MC, ASI185MC, ASI120MM and ASI120MM-S cameras to protect the sensor from dust and humidity
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ZWO D21 AR Protection Window
$16.00
ZWO ZWO Cooling Fan for ASI2600/6200/2400 Cameras - FAN50
This fan set is the perfect accessory if you are looking for a replacement for the cooling fan that came with your compatible ASI cooled camera.
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ZWO Cooling Fan for ASI2600/6200/2400 Cameras - FAN50
$15.00
ZWO ZWO Filter Masks for EFW 7X2/5X2
These ZWO Filter Masks come with M2 screws for attachment to 7 or 5 Position EFW Electronic Filter Wheels for 2 inch Filters. 
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ZWO Filter Masks for EFW 7X2/5X2
$15.00
ZWO ZWO Filter Mask for 8x125/31 EFW
ZWO EFW Filter Masks for 8-Position 1.25" and 31 mm Electronic Filter Wheel. M2 screws are included to enable secure attachment
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ZWO Filter Mask for 8x125/31 EFW
$15.00
ZWO ZWO Filter Mask for 7x36 EFW
These ZWO Filter Masks come with M2 screws for attachment to 7-Position EFW Electronic Filter Wheels for 36 mm Filters
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ZWO Filter Mask for 7x36 EFW
$15.00
ZWO ZWO Fan for Cooled/Pro Cameras
Replacement cooling fan for ZWO ASI Cooled and Pro camera models. Includes attachment hardware.
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ZWO Fan for Cooled/Pro Cameras
$15.00
ZWO ZWO M54 - M48 Adapter for EFW2" and M54 Filter Drawer
this 2 mm thick M54 Male to M48 Female Adapter to allow users to connect their ZWO 2" EFW Electronic Filter Wheel or M54 Filter Wheel to M48 threaded cameras
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ZWO M54 - M48 Adapter for EFW2" and M54 Filter Drawer
$12.00
ZWO ZWO Filter Masks for EFW Mini
Compatible with the ZWO EFW Electronic Filter Wheel Mini, these Filter Masks can be attached via included M2 screws.
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ZWO Filter Masks for EFW Mini
$12.00
ZWO ZWO T2 to CS or C Adapter
ZWO T2 to CS or C Adapter
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ZWO T2 to CS or C Adapter
$12.00
ZWO ZWO M48-M42 Adapter
M48-M42 Adapter is available now!
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ZWO M48-M42 Adapter
$12.00
ZWO ZWO T2-T2 Adapter
To be used on the ASi1600
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ZWO T2-T2 Adapter
$12.00
ZWO ZWO M42 To CS or C adapter
This adapter has female C-mount threads on the inner diameter of the ring, and male T-threads on the outside diameter.
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ZWO M42 To CS or C adapter
$12.00
ZWO ZWO ASIAIR Shutter Release N3 Cable
ASIAIR PRO is a smart WiFi device that allows you to control Mainstream DSLR cameras
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ZWO ASIAIR Shutter Release N3 Cable
$9.90
ZWO ZWO ASIAIR Shutter Release N1 Cable
The ZWO N1 shutter release cable is compatible with D300, D300s, D700, D3, D3s, and D3x Nikon cameras.
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ZWO ASIAIR Shutter Release N1 Cable
$9.90
ZWO ZWO DC Y Splitter Cable - 1 Male DC Jack to 2 Female RCA
This enhanced DC Y Splitter Cable from ZWO establishes a connection between the ZWO ASIAIR Pro WiFI Camera Controller and up to two telescope dew heaters.
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ZWO DC Y Splitter Cable - 1 Male DC Jack to 2 Female RCA
$9.90
ZWO ZWO Electronic Automatic Focuser - Temperature Sensor
Temperature Sensor for the ZWO Electronic Automatic Focuser.
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ZWO Electronic Automatic Focuser - Temperature Sensor
$9.90
ZWO M54 - M48 Adapter for EFW2" and M54 Filter Drawer
ZWO M54 - M48 Adapter for EFW2" and M54 Filter Drawer
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ZWO M54 - M48 Adapter for EFW2" and M54 Filter Drawer
$0.00