Brand: Baader Planetarium

Baader Planetarium H-alpha f/2 Ultra-Highspeed-Filters (6.5nm) - CMOS-Optimized

Brand: Baader Planetarium

Baader Planetarium H-alpha f/2 Ultra-Highspeed-Filters (6.5nm) - CMOS-Optimized

  • Baader H-alpha f/2 Ultra-Highspeed Filter - Premium Grade
  • 6.5 nm FWHM (to harmonize the exposure time with O-III / S-II), recommended for extremely fast optical systems from f/3.4 and faster
  • Specially designed for the special filter requirements when used with extremely fast f/2 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
Special Order
$238.95 CAD

Size Option

1.25 inch 2 inch 31 mm 36 mm 50.4 mm 50mm x 50mm 65mm x 65mm

Easy Payment Options with .

How do I Special Order?
Special Order
$238.95 CAD

Easy Payment Options with .

How do I Special Order?
Free Expert Support
Stress Free, Secure Shopping
30 Day Return Policy
Price Match Promise
Full Details Specifications Reviews and Questions

Product Description

This new generation of Baader CMOS-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

Baader Planetarium H-alpha f/2 Ultra-Highspeed-Filter (6.5nm) - Graph


Size Options

SIZE OPTION 1.25 inch 2 inch 31 mm 36 mm 50.4 mm 50mm x 50mm 65mm x 65mm
SKU 2961150 2961153 2961151 2961152 2961154 2961155 2961156
EAN CODE 4047825047052 4047825047083 4047825047069 4047825047076 4047825047090 4047825047106 4047825047113
FILTER THICKNESS (WITHOUT CELL) 2 mm 2 mm 2 mm 2 mm 3 mm 3 mm 3 mm
FILTER MOUNTED Mounted Mounted Unmounted Unmounted Unmounted Unmounted Unmounted
FILTER SHAPE Round Round Round Round Round Square Square

Specifications

MANUFACTURER Baader Planetarium
SUITABLE FOR F/RATIO f/3.4 and Faster
TRANSMISSION RANGE H-alpha
FILTER THICKNESS (WITHOUT CELL) 2 mm
HBW (HALFBANDWIDTH) 3.5 nm
CWL (CENTRAL WAVELENGTH) 656.3 nm
AR-COATING Reflex-Blocker™ hard coated, planeoptically polished
SPECIAL FEATURES CMOS-Optimized with Life-Coat™
FILTER USAGE CMOS, CCD, H-alpha
TYPE OF FILTER f/2 Highspeed
SINGLE OR SET? Single Filter

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

Why Should You Trust All Star Telescope?

We've Made All The Mistakes
So You Don't Have To

Learn More