Solarscope/UK 70 mm 0.7 A Solar H-alpha Filter Set

Solar Filter systems 70mm aperture for converting standard night time telescopes for safe solar observation

The Solar Filter system consists of a front filter unit with precisely tuned etalon used together with a secondary blocking filter, mounted onto the user's telescope. The rear mounted secondary blocking filter unit is ideal for use with 2" accessories and convenient for imaging use.

FEATURES Safe for visual use. Easy to set up and use, ideal for photographic and CCD imaging purposes

Solar Filter systems are compact, portable and supplied in a carrying case with recessed component slots with generous padded protection

The Fabry-Perot etalon 0.7 angstrom ultra narrow bandwidth transmission, together with completely unobstructed 70 mm aperture ensure high resolution surface detail, contrast and stunning H-alpha views of entire solar disc and limb prominences

Etalon internal fine-tune tilt adjustment to optimise image resolution and contrast or to view Doppler-shifted features

Double Filter units can be separated in order to use the front filter unit as a single filter, an option favoured by experienced solar photographers

High quality optics and mechanical instrument components. Traditional Fabry-Perot optical polishing and surface figuring skills

SEE SPECIFICATIONS

Solar Filter system secondary blocking filter units

Supplied as standard, the Blocking Filter unit has a 2" tube mount with 20mm aperture secondary blocking filter mounted in a pre-set tilt cell. The unit is ideal for use with 2" accessories

Supplied with 2" to 1-1/4" reducing adapter and unit protective end caps For telescopes with 1-1/4" tube facility Right angled 1-1/4" diagonal assembly with a 15mm aperture secondary blocking filter mounted in a pre-set tilt adjustment cell

Technical Specification's

- Single Filter system SF 70
- Full Aperture 70mm
- Operating Wavelength 656.28nm ( H-alpha )
- Etalon Coating Ultra Hard multi-layer dielectric reflector
- Anti reflector Coating Ultra Hard multi-layer dielectric AR
- Single Filter Bandwidth 0.7à… with fine-tune tilt adjustment
- Thermal Stability <1à… / 200°C
- Adapter Plate To suit user's telescope