[S II] Filter Info

[S II] transmission curve ( PDF )

[S II] transmission curve data ( ASCII )

ETF 2004
Summary of Prices
Item     Description                           Price Each
  #                                              ($US)
1. H-beta 486.1/5.0 nm, 100x100 mm               $3060
2. [O III] 500.7/5.0 nm, 100x100 mm              $3060
3. [S II] 672.4/5.0 nm, 100x100 mm               $3060
4. [N II] 658.4/3.0 nm (min. at Ha), 100x100 mm  $3600
5. Optics Cleaning Kit                             $99

Common Specifications
a. CWL:  As indicated in table above in beam f/11 at 12 degrees C, normal
incidence. Tolerance is +/- 0.8 nm.
b. FWHM:  5.0 +/- 0.8 nm in collimated beam, except for [N II] where FWHM
is 3.0
nominal but transmission at 656.3 is minimized.
c. Minimum Peak Transmission:  66%.
d. Blocking:  No leaks worse than 0.01% (10e-4) 0.3-1.1 microns.
e. Size:  4.000 x 4.000 +0 -0.025 inches or 100x100 mm.
f. Minimum Clear Aperture:  92.0 x 92.0 mm.
g. Thickness: Set parfocal to previously ordered set within 0.2 mm.
h. Surface Flatness:  lambda/4 per inch, where lambda=633 nm.
i. Parallelism:  1 arc minute.
j. Scratch-Dig:  60-40.
k. A/R Coating:  Both surfaces, reflectivity < 1.5% per surface.
l. Documentation:  Spectrum of each filter is taken just before shipment.  A
graphical printout is enclosed with shipment and upon request a text file of
the data is sent by e-mail (wavelength vs. transmission).  Blocking spectrum
would be graphical (not digitized).

Portable Cleaning Kit for Coated and Uncoated Optics
*  Effective, yet gentle solvent appropriate for cleaning most optical
coatings, including soft, fragile ones.
*  Safe, soft wipes for cleaning delicate and robust optical coatings.
*  Disposable, latex gloves.
*  Disposable, latex finger cots.
*  A unique tool for the proper removal of grit.
*  A hands-free solvent dispenser.
*  Lens tissue to properly wrap cleaned, coated optics.
*  Hermetic sealing zip bags for safe storage of delicate optics.
*  Eight pages of detailed printed instructions.
*  Enough consumable materials to clean more than 25 filters of 2x2 inch size.
*  All conveniently packed in a portable, heavy-duty, high-density
polyethylene, double-wall, carrying case.

Custom Scientific, Inc.
3852 North 15th Avenue
Phoenix, Arizona 85015 USA
Phone:  602-200-9200, Fax:  602-200-9206
optics@CustomScientific.com

http://www.CustomScientific.com