Optolong 3nm SHO S-II/H-Alpha/O-III Filters - 2" vendor-long-perng Made in Taiwan

Made in Taiwan

Kowa TSN-55S Prominar 17x - 40x Straight Spotting Scope

If you’d like to use your Sony mirrorless camera with the 8” RASA

and the covers cannot be lost due to their tethered design

The minimum tripod height has also been lowered

Optolong 3nm SHO S-II/H-Alpha/O-III Filters - 2" vendor-long-perng Made in TaiwanOptolong SHO 3nm Narrowband Filters Introduction Optolong SHO 3nm filter kit includes SII 3nm, H Alpha 3nm, and OIII 3nm narrow band filters, for use with astronomical monochrome cooling CCD and modified DSLR imaging in each single channel. Corresponding with RGB channel (HA, OIII, SII), photographers can also process the data to produce Hubble palette images. The narrowband S II 3nm filter (Sulfur II for CCD) is designed for nebula observation