Baader UBVRI Bessel R-Filter – photometric

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Baader UBVRI Bessel R-Filter – photometric

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€ 139.00 Price excl. German VAT tax (19%): € 116.81

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  • Baader UBVRI-R Bandpass Filter, suitable from f/15 to f/1.8
  • Classic photometric filter with transmission according to Bessel – parfocal with all Baader filters of the same size
  • Manufactured with most advanced ion beam coating technology / Daylight-Proof
  • 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
  • Equally suitable for modern CMOS cameras as well as for older CCD camera technologies

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€ 139.00 Price excl. German VAT tax (19%): € 116.81

Product Questions

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What's the actual size of your 2" filters in "mm" with and without frame/ring? What step down adapter is suggested from a 52 mm to "-- mm"?
146
Question by: Waqas Ahmad on Oct 10, 2016 7:54:00 PM | 1 Answer(s)
What are the threads and pitch of your 1.25" and 2" filters?
37
Question by: Anders G. on Sep 20, 2017 12:55:00 PM | 1 Answer(s)
Description

Details

This new generation of Baader Filters features:

CMOS-optimierte Baader Filter
  • Reflex-Blocker coatings, for largest ever freedom from halos, even under most adverse conditions concerning aux-optics
  • 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 telescope-sided black 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

Further information, test reviews, image results...

... can be found on our detailed Blogposts:

Baader Blogpost:
Now available: New Baader UBVRI and SLOAN/SDSS (ugriz') Photometric Filters



Baader Blogpost:
New CMOS-optimized Baader Filters



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