Baader H-alpha 6.5nm Narrowband f/2 Highspeed Filter 31 mm - CMOS optimized
Product.Nr.:
BP#2961151
EAN: 4047825047069
products condition: new
Manufacturer: Baader Planetarium
155,00 EUR
incl. 19 % VAT
-
Shipping within 24 hours
- delivery time : 3-5 days
product description
- Ø 31 mm x 2 mm
- 6.5 nm FWHM
- Recommended for extremely fast optical systems from f/3.4 and faster
- Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs
- Reflex-Blocker™ hard coated and planeoptically polished
- Sealed coating edges (Life-Coat™)
- Blackened edge all around, with filter-lead-side-indicator in the form of a black frontside outer rim
- Optimized for modern CMOS cameras (no DSLRs, but "Astro"-CMOS-Cameras (ALccd/QHY etc.))
- Precision Grade
High quality H-alpha solar filters start at 0.8 Ångström. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes – you endanger your eyesight!
The new generation of Baader CMOS-optimized filters is characterized by the following properties
- 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
Technical Data
- Transmission Range : H-alpha
- CWL (Central Wavelength) : 656.3 nm
- HBW (Halfbandwidth) : 6.5 nm
- Thickness : 2 mm
- Planeoptically polished (1/4 Lambda)
- AR-Coating : Reflex-Blocker™ hard coated
- Life-Coat™
- Blackened edge
- Filter size : 31 mm, round
- Filter mounted : Unmounted
- Baader-filterbox, combinable
Scope of Delivery
- Baader H-alpha 6.5nm Narrowband f/2 Highspeed Filter 31 mm - CMOS optimized
- Baader-filterbox, combinable
NB= Narrowband / CWL= Center-wavelength / FWHM= full width at half maximum / AR= Anti Reflection Coating.
Last viewed
Baader H-alpha 6.5nm Narrowband f/2 Highspeed Filter 31 mm - CMOS optimized
- Ø 31 mm x 2 mm
- 6.5 nm FWHM
- Recommended for extremely fast optical systems from f/3.4 and faster ...
155,00 EUR
incl. 19 % VAT excl. shipping costs
Shipping within 24 hours
delivery time : 3-5 days
- Camera & Eyepiece sided
- M72 outer (male) thread (e.g. for Starlight Xpress cameras)
- Mounting plate for UFC...
60,00 EUR
incl. 19 % VAT excl. shipping costs
Shipping within 24 hours
delivery time : 3-5 days
Baader UFC S70 Extension 40 mm
- 40 mm extension
- With S70 dovetail for UFC Base
- With S70 dovetail-clamp-screws
39,00 EUR
incl. 19 % VAT excl. shipping costs
Shipping within 24 hours
delivery time : 3-5 days
Reviews
Manufacturer identification
Manufacturer identification
Name: BAADER PLANETARIUM GmbHE-Mail adress: kontakt@baader-planetarium.de
Streetaddress: Zur Sternwarte 4
ZIP Code: 82291
City: Mammendorf
Country: DE
Phone: +49 (0) 8145 - 8089-0
