Used ZWO H-Alpha 1.25" 7nm Filter GPS Focuser Travel Length

Focuser Travel Length

Connection steps

Despite its lightweight design

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Used ZWO H-Alpha 1.25" 7nm Filter GPS Focuser Travel LengthCondition: This is a used ZWO H Alpha 1. 25" filter in excellent condition. The optics and body are clean. No box; comes in a ziploc bag. Any dust you see in the photos is easily removable it seems that these filters develop an electrostatic charge such that the dust in the air is just attracted to the filter. Description: ZWO 1. 25" H Alpha, SII, OIII 7nm Filter Set Narrowband filters are a fantastic astrophotography tool when it comes to imaging