BAADER UV-IR-Cut Filter, and DSLR
Correcting Filter (Canon)
The only infrared blocker in this
price range featuring a planoptically polished substrate, parallel to within
30 seconds of arc!
Reflects destructive heat radiation!
your valuable solar observing equipment such as DAYSTAR-Filters and the like
from excessive heat-stress (ie, from cooking the immersion liquid!)
cool and will not shatter if subjected to great thermal stress, since even
intensive radiation is not absorbed - as with ordinary “heat protective
Filters”, such as KG-3 or KG-5. Energy is reflected due to an elaborate
interference system of 23 dielectric coating layers.
Transmission average across the visible
star images with
digital and CCD-
Ultrahard and durable Ion-Beam IR-cut coatings, may be
cleaned any time without fear.
absolutely scratch resistant 7-layer - multicoat featuring 0.3% residual
reflection versus the regular 4.6% of an uncoated substrate.
ghost images due to highest quality coatings
polished! Retains full image resolution even at highest magnification during
solar observation or eyepiece projection.
Available in 1¼"
and 2" size
Full family of
adapters to mount in (almost) any telescope’s
optical train - see the
Astro T-2 SystemTM.
aperture than any competing 1¼" or 2" filter.
Better, more elaborate filter cell design than any competing filter,
featuring a CNC-milled “crown” for ease of handling and attachment.
Spectral Transmission, UV-IR-CUT
last updated 08/30/09