Research Grade
UBVRI Filters

Uses:
Photometry.  This is the Bessell filter prescription of the Johnson-Cousins
filter set specifically designed for photometry with CCD cameras.

Features:
Research grade UBVRI filters.
All surfaces optically polished.
Anti-reflection coating.
Matching clear filter available.
1.087" diameter, 5mm thick.
Mounted in 1.25" metal cell designed to fit CFW8 carousel or any threaded 1.25" nosepiece.
Filters may be removed from cells for easy cleaning.
(See filter passbands below)

Price:
$175.00 each.
$90.00 for extra CFW8 carousel.
$90.00 for matching clear filter.
$950.00 for UBVRI set + extra CFW8 carousel.

Order Form
(Direct Only)

Click here to see detailed curves for each UBVRI filter

Special Application Filters:

H-alpha and Red Continuum Subtraction Filters
[O III] and Green Continuum Subtraction Filters
H-beta and Blue Continuum Subtraction Filters
[S II] may be used with Red Continuum Subtraction Filter

Please note that we have discontinued stocking these special order items.
If you would like a referral to a source for specialty filters please contact SBIG.