Telescopes Canada

Baader 6.5nm f/2 Highspeed Filter Set – CMOS-Optimized (H-alpha / O-III / S-II)

Zoom the image with the mouse

Baader 6.5nm f/2 Highspeed Filter Set – CMOS-Optimized (H-alpha / O-III / S-II)

Availability On Back Order - Ask Us For Details or

Enter Your Email Below to be Notified When In Stock

Product Type Filter

Vendor Baader Planetarium

Product ID 2961660

$621 CAD

We will price-match in-stock Canadian astronomy dealer pricing

1.25"

31mm

36mm

50.4mm

50mm x 50mm

65mm x 65mm

Quantity:

Add to Wish List

Ask a Question About This Product

Description
Shipping & Returns

Highlights

Baader H-alpha / O-III / S-II f/2 Highspeed Filter Set – Precision Grade
6.5 nm FWHM, recommended for extremely fast optical systems from f/3.4 to f/1.8
Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
Reflex-Blocker™ hard coated and planeoptically polished – with sealed coating edges (Life-Coat™)
Blackened edges all around, with filter-lead-side-indicator in the form of a telescope-sided black outer rim
Optimized for modern CMOS cameras, but likewise excellent for CCD camera technologies

This new generation of Baader CMOS-filters features:

CMOS-optimized Baader Filters

Features

Increased contrast

Ever more narrow passbands

Reflex-Blocker^™ coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics

FWHM on each filter category carefully designed to allow for 1:1:1 exposures, matched for typical CMOS quantum efficiency and s/n ratio

Identical filter thickness to existing standards, with utmost care for parfocality

Blackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter

Each filter coated individually, with sealed coating edge (NOT cut out of a larger plate with coatings left exposed, read more)

Life-Coat™: evermore hard coatings to enable a non-aging coating for life – even in a most adverse environment