BAADER OD 5.0 ASTROSOLAR BINOCULAR FILTER

Baader AstroSolar Safety Film Filters are diffraction limited solar neutral density filters mounted in a temperature-compensated cell. This makes them extremely safe and protected against the normal stresses typical solar films are put under, as well as retaining the excellent optical quality at any temperature, be it -30 to +50C. No astigmatism is introduced during cold winters or hot summers.

Note: Price is for one piece only. For use with binoculars, two filters are necessary.

The AstroSolar filters are suitable for safe solar observation and photography with binoculars with apertures between 50 - 100mm as well as camera lenses. Velcro safety straps and pads and large centering bolts with rubber grips are included to secure the filters to your binoculars. The bolt slots have printed index scales to allow fast and repeatable adjustment. The white outer ring rejects infrared light and features raised edges along both the inner and outer circumference to protect the film.

The film itself is repeatably cemented onto an injection moulded ring, whereas the substrate of that ring has the same thermal expansion like the Astro Solar Filter material itself. This free floating film-carrier ring is held onto the aluminium frame with the help of an additional holding ring made of fiber reinforced plastic – for maximum security against breaking of the cell. This aluminium frame has a cutout on one side to facilitate use with binoculars.

Included are two sets of 38mm long centering bolts, three with 10mm diameter and three with 20mm diameter, along with three safety straps with glue-on pads.

WARNING: Make sure to read the included manual for important safety information before use. Testar does not take responsibility for damage caused by improper use. For more information, check out the AstroSolar website.

Specifications

Downloads

Instruction manual