Askar Color Magic Ultra-Narrowband Imaging 3nm SHO (S-II, H-a & O-III) Filter Set (3 Filters) - 2" Mounted
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Please note:
- Despite the 3nm nomenclature, the actual bandwidth of these filters is closer to 4nm. Please see the specifications on the individual item pages.
- While example tranmission curves on this item page show peak transmissions exceeding 90%, Askar only guarantees a minimum of 85%, although it will typically be higher.
Set of three 2" mounted filters.
Please see the links above for a detailed description of each individual filter included in this set.
Useful Resources
Filter Cell Specifications
D = Filter Cell Diameter = 50.5 mm / 1.98 in
T = Total Filter Height = 7.6 mm / 0.29 in
C = Filter Cell Height (Excluding Male Thread) = 5 mm / 0.19 in
M = Male Thread Length = 2.7 mm / 0.10 in
F = USABLE Female Filter Thread Length = Not threaded, so you cannot stack additional filters
S = Glass Substrate Thickness = 1.87 mm / 0.07 in
CA = Clear Aperture = 44 mm / 1.73 in
Other Information
- Country of Manufacture: China
Set of three 2" mounted filters.
Please see the links above for a detailed description of each individual filter included in this set.
Please note:
- Despite the 3nm nomenclature, the actual bandwidth of these filters is closer to 4nm. Please see the specifications on the individual item pages.
- While example tranmission curves on this item page show peak transmissions exceeding 90%, Askar only guarantees a minimum of 85%, although it will typically be higher.
Set of three 2" mounted filters.
Please see the links above for a detailed description of each individual filter included in this set.
Useful Resources
Filter Cell Specifications
D = Filter Cell Diameter = 50.5 mm / 1.98 in
T = Total Filter Height = 7.6 mm / 0.29 in
C = Filter Cell Height (Excluding Male Thread) = 5 mm / 0.19 in
M = Male Thread Length = 2.7 mm / 0.10 in
F = USABLE Female Filter Thread Length = Not threaded, so you cannot stack additional filters
S = Glass Substrate Thickness = 1.87 mm / 0.07 in
CA = Clear Aperture = 44 mm / 1.73 in
Other Information
- Country of Manufacture: China
Askar Color Magic Ultra-Narrowband Imaging 3nm SHO (S-II, H-a & O-III) Filter Set (3 Filters) - 2" Mounted