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Baader AstroSolar Telescope Solar Filter - aperture: 80 mm, tube: 100-140 mm

Name: Baader AstroSolar Telescope Solar Filter - aperture: 80 mm, tube: 100-140 mm
Brand: Baader
SKU: BA2459310
Price: 73 EUR
Rating: 5 (1 reviews)

Baader ASTF Astro Solar Filter for telescopes for safe observation of the sun - aperture 3.15 inch (80 mm), tube diameter 4 inch to 5.5 inch (100 mm to 140 mm)

Baader High-End solar filter allows safe viewing and photography of the sun, using telescopes or telephoto lenses.

Reliable and safe filtering of the sunlight with Baader AstroSolar Safety film (OD 5.0) - two-sided coating

Tension-free and safely mounted in a high-quality, temperature compensated cell

Suitable for viewing sunspots and other details on the sun at higher magnification

The sun is imaged in natural white light - no artificial colour

Flexible mounting through three slideable rubber-coated centering pins

You choose how tight the filter cell should fit to your telescope

Delivered in robust cardboard box

Manufacturer: Baader

Product number: BA2459310

EUR 73,00

incl. 19 % VAT (DE)

The VAT indicated refers to that applicable in Germany. After logging in, the VAT amount is adjusted to the applicable VAT of the stored delivery country. Therefore, the final price may vary accordingly.

excl. 6.95 € shipping costs (DE)

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Product expected to be available from 01.09.2024

rating: 5.0 of 5

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Baader AstroSolar Telescope Solar Filter - aperture: 80 mm, tube: 100-140 mm

Baader ASTF Astro Solar Filter for telescopes for safe observation of the sun - aperture 3.15 inch (80 mm), tube diameter 4 inch to 5.5 inch (100 mm to 140 mm)

Baader High-End solar filter allows safe viewing and photography of the sun, using telescopes or telephoto lenses.

Reliable and safe filtering of the sunlight with Baader AstroSolar Safety film (OD 5.0) - two-sided coating

Tension-free and safely mounted in a high-quality, temperature compensated cell

Suitable for viewing sunspots and other details on the sun at higher magnification

The sun is imaged in natural white light - no artificial colour

Flexible mounting through three slideable rubber-coated centering pins

You choose how tight the filter cell should fit to your telescope

Delivered in robust cardboard box

Details..
Technical data..
In the box..

Baader filter film for solar oberving enjoy great popularity - worldwide

In opposite to many glass solar filters, Baader AstroSolar Safety Film fullfills highest requirements for image quality and safety. Now Baader also offers professional cells which hold the film without tension, ensuring high image quality and best safety.

ASTF - AstroSolar Telescope Filters - High-End Solar Filters:

Solar filters for telescopes come in a temperature-compensated cell. The film is mounted in a way which rules out any danger of breaking or tearing. Within a temperature range from -30 °C to +50 °C, the image quality is perfectly kept. Even after extremely fast temperature changes, like from a warm room into cold winter air, the ASTF solar filter is directly ready for use.

All Baader Solar Filter sets contain:

original Baader AstroSolar® Safety Film (OD 5.0), mounted and quality checked by experienced members of our company.

pure white, IR-reflecting aluminum front ring with stiffened inner and outer rims, shaped to protect the filter material against contact with sharp metal edges

three centering pins with brass inlays are used for centering the filter cell at the front of telescope. These pins have three different diameters, depending upon the filter category (ASTF / ASSF / ASBF). Every pin has a corrugated rubber coating which makes sliding onto the telescope tube easy, but prevents from unintended slipping back.

the pins can be fixed without tool and allow engagement on a multitude of tube diameters. The pins fit as well to the outer side of the tube as on the inner one (if possible at all).

sliding aluminium blocks hold the pins. The blocks don´t turn and have a milled index pointing to a printed scale.

inserted cross-head srews allow additional tightening of the pins with a screwdriver

for fast and reproducible centering of the filter to different tubes, there is a scale next to every adjustment hole

shiftable black closing plates cover the adjustment holes and prevents unfiltered light from falling into the optics

three rubber plugs are used for closing unused adjustment holes

three safety belts with velcro and self-adhesive counterparts are used to fix the position of the filter in front of the telescope

the front side of every filer contains the warning sign: "Read the Instructions before use"

robust shipping cardboard box

Instruction

Baader offers a very good manual, the PDF can be downloaded here.

Clear aperture of the sun filter:	3.15" (80 mm)
Outer clamping range:	4" to 5.5" (100 mm to 140 mm)
Inner clamping range:	5.1" to 6.7" (130 mm to 170 mm)
Filter film:	Baader AstroSolar Safety Film ND5.0
Cell:	aluminium cell with two stud sets (0.39"/10 mm and 0.79"/20 mm diameter)