| ₹ 18010.0 includes GST and import duties. | |
| B2B customers can avail ₹ 2746.53 ITC on this product | |
| 100% Secure Payments | 100% Genuine product | |
| The product is eligible for Free Shipping |
Description
Alpine Astronomical FOIIISG-1 Overview
This 1.25" 9nm O-III Super-G CMOS Filter from Alpine Astronomical is designed for observing and photographing planetary nebulae, supernova remnants, and many large emission nebulae. Its 9nm FWHM and CMOS-optimized coatings deliver high visual contrast against the sky background and a 97% transmission rate for the emission line at 500.7nm. The filter can be used photographically from f/1.8 to f/12 without passing any light of the H-beta line, making it ideal for areas with high light pollution. The mounted filter features a Reflex-Blocker hard coating, plano-optical polishing, and Life-Coat sealed edges.
- Increased contrast, matched for typical CMOS quantum efficiency and s/n ratio
- Reflex-Blocker coatings for 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 black frontside outer rim to 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)
- Life-Coat: hard coatings to enable a non-aging coating for life, even in a most adverse environment
- Alpine Astronomical 9nm O-III Super-G CMOS Filter (1.25")
- Limited 2-Year Manufacturer Warranty
No additional resources available
Alpine Astronomical FOIIISG-1 Specs
| Size |
1.25, Mounted
|
| Filter Factor |
O-III
|
| Thickness |
2 mm, without Cell
|
| Central Wavelength |
502 nm
|
| Antireflective Coating |
Reflex-Blocker Hard Coated, Dielectrically Coated, Plano-Optically Polished
|
| Package Weight |
0.13 lb
|
| Box Dimensions (LxWxH) |
3.1 x 2.95 x 0.95"
|
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Bulk Discount
| Quantity | Price |
| 2 | ₹ 17649.8 |
| 3-5 | ₹ 17469.7 |
| 5-10 | ₹ 17109.5 |
| 10+ | ₹ 16749.3 |
Bulk discount will be automatically applied during checkout based on quantity.