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solar filters

Baader AstroSolar Telescope Filter 200mm - OD 5.0 - ASTF-200

Baader Planetarium   ——   SKU: BAA-ASTF-200
$229.00 CAD
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Baader AstroSolar Telescope Filter 200mm - Tubes 220-260mm OD

  • 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, mounting instructions.

Baader Solar Filters provide a professional and secure solution to observe and image the Sun using AstroSolar® Safety Film Optical Density of 5.0. Many ready made filters do stretch the filter material like a drumhead in order to make it look like a piece of glass – this absolutely destroys the image quality, rendering the film useless for high magnification work. AstroSolar must be mounted entirely stress free in order to perform like a high precision flat window. It sounds like a contradiction with traditional perception of quality, but AstroSolar must show slight ripples! With this specially designed mounting, the Baader AstroSolar Telescope Filter with Optical Density of 5.0 provides exceptional optical imagery.  In fact, after 15 years of offering AstroSolar film sheets as a DIY-product, this system of Baader Solar Filters™ is designed to retain the true optical quality of the diffraction-limited AstroSolar Safety Film, even used at high magnifications.

Specifications:

FILTER SIZE 200 mm
MANUFACTURER Baader Planetarium
SKU (#) 2459316
USAGE Visual solar observation and imaging at high magnification
ASTROSOLAR FILM AstroSolar Safety Film
OPTICAL DENSITY 5.0
INNER DIAMETER / CLEAR APERTURE (MM) 200
OUTER DIAMETER 290
FILTER MOUNTED? Yes
OUTER CLAMPINGRANGE (10MM BOLTS) 230 – 260
INNER CLAMPINGRANGE (10MM BOLTS) 250 – 280
OUTER CLAMPINGRANGE (20MM BOLTS) 220 – 250
INNER CLAMPINGRANGE (20MM BOLTS) 260 – 290
SOLAR WAVELENGHT White light
Baader AstroSolar Telescope Filter 200mm - OD 5.0 - ASTF-200 for $229.00 at Khan Scope Centre Baader AstroSolar Telescope Filter 200mm - OD 5.0 - ASTF-200 for $229.00 at Khan Scope Centre
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