Binocular Viewer from Baader Planetarium

Giant Binocular Viewer from Baader Planetarium

Parts included with Our Part # BPBINOV

Binocular Viewer with 1.25x Glasspath Compensator installed on the main housing (easily removed, 1.25" Compensator Lens is also sold separately as part # BP4A)
2" Nosepiece (2"/T-2) (labeled as 2" Barrel in above illustration), also sold separately as part # AP16T)
Prism (T-2 Stardiagonal Prism, also sold separately as part # BP1)
Bayonet (T-2 Quick Changer, also sold separately as part # BP6)

Optional Items to Consider

Convertible Barlow (BARCON)
1.75x Glasspath Compensator (BP4B)
48mm Moon & Skyglowfilter (BPMS2)
48mm Color Filters will be available from Baader Planetarium in the future. these will be optically polished as are the Moon & Skyglowfilters and 1.25" Colored Glass Filters (BPCF125). Please contact us if you are interested.
Other 48mm filters
Accessories from the Baader Planetarium FFC System
1.25" eyepieces. We typically use a set of Plossls in a medium power range. A set of 19mm or 22mm Panoptics eyepieces are particular favorites of our binocular viewer customers. Note that the 22mm Panoptics may not be suitable for viewers with wider noses. TeleVue Radians are also favored by many. Please call us for your TeleVue eyepiece purchases.

Backfocus In-travel Requirements
Backfocus in-travel is the difference between where the light focuses and the back of the focuser needs to be.

Binoviewer with 1.25x Compensator, 2" Nosepiece (Barrel) and Convertible Barlow - needs 0.6" in-travel
Binoviewer with 1.25x Compensator, Prism and Convertible Barlow - needs 1.8" in-travel
Binoviewer with 1.25x Compensator and 2" Adapter - needs 3.5" in-travel
Binoviewer with 1.25x Compensator and Prism - needs 4.5" in-travel

Binoviewer with 1.70x Compensator, 2" Nosepiece (Barrel) and Convertible Barlow - needs 0.7" out-travel
Binoviewer with 1.70x Compensator, Prism and Convertible Barlow - needs 0.55 " in-travel
Binoviewer with 1.70x Compensator and 2" Adapter - needs 2.25" in-travel
Binoviewer with 1.70x Compensator and Prism - needs 3.25" in-travel

If you do not use the 1.25x compensator, the backfocus is increased by 1.25x in all configurations
Binoviewer with 2" Nosepiece (Barrel) and Convertible Barlow - needs 0.9" in-travel
Binoviewer with Prism and Convertible Barlow - needs 2.25" in-travel
Binoviewer with 2" Adapter - needs 4.4" in-travel
Binoviewer with Prism - needs 5.6" in-travel.

Astro-Physics, Inc.
11250 Forest Hills Road, Rockford, IL 61115, U.S.A.
Phone: 815-282-1513 Fax: 815-282-9847