Product Review
Extension tube and mount adapter for astrophotography. The material is standard aluminum alloy. It is Datyson oem. The body is all metal, not plastic, and can be applied to many astronomy telescope brands. It is suitable for use with the focal length of 31.7mm (1.25 inch), or it can be used on the M42*0.75 thread fixed on the telescope. It can be used to enlarge the photographic direct focus photographic lens tube extension.
