Baader UV-IR Cut Filter - 65mm Square Unmounted

ITEM #
BA-FUVIR-SQ65
No Reviews yet.
  • Price:
  • Sale
  • Regular price $267.00

0
Already have gear? Trade it in for cash or new equipment.

Accessories Added

DESCRIPTION

Baader UV-IR Cut Filter - 65mm Square Unmounted

The UV-IR Cut Filter -65x65x3 mm Square Unmounted by Baader Planetarium:

Baader Planetarium has introduced the world's finest UV/IR cut filter. This filter is a must for all digital imaging with Digital Cameras, CCD Cameras, and modified WebCams. Also useful for protecting valuable H-alpha filters from heat stress and damaging IR (Daystar, etc). 


Due to their extremely high optical quality, these filters may be stacked and used far in front of the focal plane (necessary for imaging uses). Like the Baader Planetarium Contrast-Booster, the UV-IR-Cut filter uses the very latest coating technology, to deliver the finest filtration quality - and lifetime durability.

 

Baader Planetarium UV-IR Cut Filter Features:

True Optical Quality: Baader glass substrates are of true optical quality. Most other filters are merely made from raw flame-polished, "optically flat", or sometimes a top quality commercially polished filter glass (fine for camera filters), resulting in wavefront deformations that damage image sharpness and contrast when used with telescopes. Baader Planetarium filters are made from striae-free substrates, and actually fine optically polished flat to within 1/4 wave p-v over the entire surface, plane parallel to within 30 seconds of arc! This important and unique custom step adds cost - but the result is a filter that maintains the full wavefront quality of the telescope without double images or ghosting, even at high magnifications. Critical to maintaining this level of flatness are Baader's carefully balanced coating designs, which prevent coating surface stresses from warping the substrate. Such high flatness enables Baader filters to be used far in front of the focal plane, ahead of star diagonals and digital cameras. They are particularly well suited for attachment to the nosepiece of the Maxbright Binocular Viewer (other manufacturer's filters must be used in pairs, attached to the eyepieces).

Filter Durability: Filter durability has always been a hallmark of Baader Planetarium. The multi-layer dielectric coatings are plasma-assisted and Ion beam-hardened using the latest technology (the coatings are harder than the glass substrate itself!). Baader filters withstand repeated real-world exposure to the elements and physical cleaning. Users need not leave their precious filters dull and dust encrusted to avoid cleaning - Baader filters may be used and cleaned without fear. We have heard sad stories from owners of other simpler soft-coated dielectric filters, who have seen their coatings degrade from normal exposure to moisture, or wiped away from routine cleaning. Some manufacturers even resort to sandwiching their delicate coatings in between two layers of glass (and risking blurred double images as well as eventual degradation from the edges inward). Baader Filters will truly last a lifetime.

Stackability: Unlike other filters, Baader Planetarium filters are truly designed to be stacked and combined. This is possible due to the high optical quality and highly efficient anti-reflection multi-coatings. The ability to combine filters opens up many exciting possibilities, permitting unique spectral characteristics unachievable with any single filter.

Low cost: Despite high quality and advanced technology, Baader Planetarium filters are affordable. By leveraging high volumes across all filters in the Baader family, these filters can be offered at very reasonable prices.

OPT Product Number: BA-FUVIR-SQ65


Illustration depicts UV-IR Cut Filters mounted in cells. This product number is for a Baader Planetarium UV-IR Cut Filter - 65x65x3 mm Square Unmounted only.

SPECIFICATIONS

Filter TypeLuminance
ManufacturerBaader
ShapeSquare
Warranty1 Year Warranty

QUESTIONS & ANSWERS

Ask a Question
  • How is this filter used? There is no real picture of the product that could provide answers. Does unmounted mean that it is positioned before the diagonal instead of the objective? And what purpose does the square shape serve? Thanks

    This 65mm square unmounted filter is designed to be used in the 5 position filter wheel for the SBIG STX-16803 camera, as only this size filter will allow light to both the main KAF-16803 CCD and the KAI-0340 autoguider CCD in the camera body. The only o