BA1 Series

Common Features:
Light weight
Rubber armored
Affordable price and high value

BA2 Series

Common Features:
Full Metal construction
Braced and hinged objective barrels
Built-in mount
Rubber armored

BA3 Series

Common Features:
Waterproof with nitrogen filled
Long eye relief and large eyepiece
CNC metal parts

BA4 Series

Common Features:
Waterproof with nitrogen filled
All-metal construction with leatherette cover
Large size prisms 

BA5 Series

Common Features:
All-metal construction with painting
Nebular filter as optional

BA6 Series

Common Features:
Water resistant with nitrogen filled
Semi-apochromatic doublet & Triplet & quadruplicate
Long eye relief
All-metal construction
Retractable dew shield
U fork mount is 360° azimuth rotation, elevation up to 90° and down to 30°

BA7 Series

Common Features:
Semi-Apochromatic triplet & doublet
All-Metal construction
U fork mount is 360° azimuth rotation, elevation up to 90° and down to 15°
Metal tripod or wooden tripod both available

BA8 Series

Common Features:
Waterproof and shockproof
All metal construction
Flat field and distrtion free
High resolution
92% light transmission
Long eye relief and large eyepiece