1、This focuser offers fine and ultra-fine focusing adjustments.
2、The focuser has large anodized focuser knobs with rubber O-ring gripping surfaces for a firm grip and frostbite-free handling in cold weather.
3、Optical focus is achieved by means of a mechanically ultra-smooth, backlash-free, precision 2" Crayford focuser-assembly."
4、This rotator device is still used today for all Takahashi focuser from the2” to4” focusers and all astrographs.
5、There are cost focus seekers, who aim to obtain a local cost advantage over competition and differentiation focuser, who are looking for a local difference. [3]
6、It exists in various versions, with individual or central focuser, with thick rubber armor or just a rubber skin, with - and without military reticle.
