ZWO CCTV Lens 2.5 mm 170 Degrees - for ASI cameras without cooling

ZWO 1/2″ 2.5 mm 170 degree lens

This lens supports sensors up to 1/2" diameter, it is very good for extreme wide angel imaging with uncooled ZWO ASI cameras.

This lens match ZWO ASI cameras like:
ASI178MM, ASI178MC, ASI185MC

With smaller sensors the angle of view becomes smaller, with larger sensors there is more vignetting. The third image shows a photograph taken through this lens with an ASI174MM Mini (1/1.2" sensor), the noticeable overexposure also shows the possible reflections. However, in meteor photography under a dark sky, there is not much of them to see.

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