Description
- Safe for solar observation and photography with all high-end telescopes and extreme Tele lenses. Suitable for highest magnifications and detailed observation of individual sunspots
- AstroSolar Safety Film OD 5.0, mounted stress-free in temperature compensated cell
- No astigmatism during winter observation or with temperature changes in summer
- Scope of supply: ASTF Filter with apertures from 80 to 180mm (200 – 280mm not yet available) come with two sets of centering bolts in 38mm length. 3 bolts with 10mm diameter and 3 bolts with 20mm diameter, adjustable to the tube diameter of your telescope or dew cap. In addition three safety straps with glue pads and three rubber plugs to cover the holes that are not used and mounting instructions.
All Baader Solar Filters feature:
- original Baader AstroSolar® Safety Film (OD 5.0), cell mounted and quality inspected by skilled members of our staff
- clear white IR-rejecting front ring with reinforcing raised edges along the outer and inner circumference, designed to protect the solar filter material from contact with any sharp metal edge
- 3 injection molded centering bolts with threaded brass inserts to center the filter cell in front of the tube opening. These bolts come in three different diameters, depending on the filter category (ASTF/ASSF/ASBF). Each bolt features injection molded rubber grip-faces, shaped to easily slide onto any telescope tube – but to come off very hard
- no tool mounting and adjustment of the centering bolts to fit a wide variety of mechanical tube diameters. Bolts made to contact the outside or optional (if appropriate) the inside of the optical instrument tube
- non-rotating sliding fasteners made from aluminum that hold the centering bolts. These metal sliders are equipped with a machined indicator to point toward the adjustment index
- additional Phillips screws are integrated into the sliding fasteners so that the centering bolts can be firmly fastened with a screwdriver if preferred by the user
- index scale provided beside each adjustment slot – adjacent to each sliding fastener, for fast and repeatable adjustment of the filter cell onto different telescope tubes
- black sliding washers supplied to securely cover the full length of the adjustment slots in the aluminum frame – for blocking sunlight from passing through the filter cell beside the filter area
- only for ASTF/BDSF-filters: rubber plugs supplied as cover for closing unused adjustment slots in the aluminum frame
- three security straps included, to secure the position of the filter cell with Velcro-adhesive pads. A safety feature to absolutely ensure a secure fit in front of the telescope under any circumstances (gust of wind asf)
- warning text printed onto the front side of each filter cell: Read the Instructions before using
- a cardboard gift box fit for safely shipping the filter
