BAADER ADAPTER 2" SC MALE - M42 FEMALE Optical accessory 5nm Highspeed F/2 filter is

5nm Highspeed F/2 filter is a precision-grade narrowband filter with a high transmission at the Sulphur-II line at 671

you have to add one of the many optional adapters with T2

Casting + CNC machined

Unlike the previous version

60 mm  Dimensions (mm) 652 (with dew shield) L x 376 Ø Weight 30 kg Backfocus from back plate 180 mm RMS polychromatic spot size Max

BAADER ADAPTER 2" SC MALE - M42 FEMALE Optical accessory 5nm Highspeed F/2 filter isThe Baader 2" SC Male to M42 (T2) Female adapter has a male 2" Schmidt Cassegrain thread on one side and a female M42 x 0. 75 thread on the other. It can be used to connect accessories with 2" SC female threads to those with M42 male threads. It has an optical length of zero. This adapter can also work as an expansion ring to convert a photographic T2 thread into a male 2" SC thread. It also features two face holes for easy removal. Specifications