UV/IR-Cut Filter 101x143x3mm

Baader UV/IR Cut - Filter Giant Size 101x143x3mm

Giant-Size 101x143mm

The only infrared blocking filter in this price range with plano-optically polished surfaces and consistent multi-layer anti-reflection coating. Blocks the near infrared - up to 1300nm (1.3 microns)! - an absolute MUST for digital photography.

• Reflects harmful heat radiation in the infrared spectral range
• Delivers 98% transmission across the entire visible spectrum
• Prevents blurred star images

Features:

• remains cold and cannot burst even under high heat loads, as the radiation intensity is not absorbed, as with conventional "KG" heat protection glass, but is reflected back by a complex dielectric system of interference layers
• 98% transmission over the entire visible spectrum
• Prevents blurred star images
• Plano optically polished! Maintains the full sharpness performance of the telescope - even at extreme magnifications for solar observation and planetary photography in eyepiece projection!
• Ion beam-hardened, scratch-resistant interference coating system consisting of 23 individual layers as an IR blocker
• Ultra-hard, 7-layer multilayer anti-reflective coating with 0.3% residual reflection - can be cleaned as often as required
• Free of ghost images / secondary reflections due to the extremely complex coatings
• Available for 1¼" (M28.5) and 2" (M48) thread
• Integrated into a huge family of adapter rings that allows use with (almost) all telescopes and cameras - see the Astro T2 system and the Digital T2 system from Baader
• Largest free aperture of all 1¼" and 2" filters on the market
• Most elaborate filter frame on the market, with CNC-milled grip crown
• eliminates the chromatic aberration of conventional two-lens refractors

The transmission curve of the Baader UV/IR blocking filter

The transmission curve of the Baader ACF UV/IR blocking filter
Please click to enlarge

The transmission curve of the Baader Contrast Booster, combined with the UV/IR filter for use in CCD astronomy from a large city or near a large city
Please click to enlarge

The following transmission curve shows the light transmission in percent, plotted against the light wavelength in nanometers.

Together with the Baader Contrast Booster Filter, the Baader UV/IR Blocking Filter is an optimal filter for CCD images taken in light-polluted urban and metropolitan environments (see second filter curve).