OPTOLONG S-II (12nm) CCD filter (50.8mm)

incl. 27% VAT

168.86
Including 27% VAT:
168.86 € (66 700 HUF)
Net price (for non-EU customers):
132.96 € (52 520 HUF)
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Please contact our colleagues before ordering: +36-1-202-5651
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Product code: OpSII12CCD2

OPTOLONG S-II (12nm) CCD filter (50.8mm)

More about the product

These filters are intended for CCD applications.

Filter Specification:

H-Alpha: CW 656nm, 12 or 7nm bandwidth
O-III: CW: 500nm, 12 or 7nm bandwidth
S-II: CW: 672nm, 12 or 7nm bandwidth
These filters are not suitable for solar observations.


Technical specifications

Supporting glass of Schott
Surface Quality 60/40 (corresponding to the EE kindness by American military standard MIL-O-13830)
Fine optically polished, 1/4 wavefront
min. 90% peak transmittance in the passband
IR Blocking 700-1100nm in the stop band / off band

Coating properties:

High Homogeneous multilayer anti-reflection coating
The allowances are not cemented to the optical carrier, but applied Deposition (IBAD) method by electron beam evaporation and subsequent ion beam assisted.
This special process allows a high durability and scratch resistance, and high stability of the center wavelength (CWL) and prevents a temperature drift.
High transmission in the passband, high optical density in the stop band.

Filter version:

Ultrathin filter mount for maximum passage: 26mm at the 1.25 "filters, 45mm at the 2" filters
Precise CNC manufacturing
Sandblasted
Black anodized
blackened to reflections
Laser engraving - no fading of the label

Customers from GERMANY: Please note we are not allowed to ship the EOS clip filters to Germany.

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