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ZWO 170-Degree Replacement Lens

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  • Regular price $22.00

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Replacement Lens:

  • Format: 1/2-Inch sensor
  • Focal Length: 2.5 mm
  • Wide angle: 170-degree Lens.



ZWO 170-Degree Replacement Lens

The 170-Degree Replacement Lens by ZWO:


This is a replacement lens for ZWO ASI camera that have a 1/2-inch sensor size. It replaces the lens for the one that comes with the ZWO ASI178MM, ASI178MC, and ASI185MC cameras.


Featuring a 170-Degree Field-of-View.


ZWO Note: This is a CS lens, it cannot be used on our cooled camera whose back focus distance is 17.5 mm.


OPT Product Number: ZWO-LENS-2.5


Aperture1.25 mm (0.05")
Back Focus12.5mm
Camera/Eyepiece ConnectionMount
Dawes Limit92.8 arcseconds
Focal Length2.5 mm
Focal Ratiof/2
Free ShippingYes
Image Circle Diameter13mm
Limiting Magnitude4.2
Optical DesignCS lens
Tube Weight0.1 lbs