ANTLIA Ha 2.5nm ULTRA NARROWBAND FILTER 2" QHY15 If you have no problem

If you have no problem with parts protruding into the drawer

which allows you to mount it to the bottom of any standard Vixen or Losmandy-style dovetail bar

SKU M42 adapter

H-alpha (656nm) and SII (672nm)

FS-78 - 75 mm backfocus

ANTLIA Ha 2.5nm ULTRA NARROWBAND FILTER 2" QHY15 If you have no problemThe Antlia H Alpha 2. 5nm Ultra narrowband 2" filter has a FWHM (full width half maximum) of an incredible 2. 5nm +0. 3 0. 1nm and a high transmission efficiency of > 95% at the central wavelength. These filters are made from quartz glass which has an ultra low thermal expansion coefficient and outstanding thermal and mechanical properties. Utilizing Antlia's precisely controlled advanced coating process, these filters are exceptionally durable and