SKU:42777979299
Optolong Hydrogen-Alpha 7nm Narrowband Filter 2" Mounted (OPT-H-ALPHA-7NM-2)
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- USA
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
Description
Optolong Hydrogen-Alpha 7nm Narrowband Filter 2" Mounted (OPT-H-ALPHA-7NM-2)Optolong improved version of Hydrogen Alpha 7nm filter is the popular narrowband filter allowing 7nm bandwidth of light centered on a wavelength of 656nm through, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapour, and both high and low pressure sodium vapour lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i. e. skyglow).
threaded design ensures a secure
Some of the highlights include:
The NexStar is an easy-to-use computerized telescope
Optical Design ED Triplet Refractor Lens Coatings Fully Multi-Coated Glass Type BK7 (2)/FPL-53(ED) Primary Aperture (mm) 100 F/Ratio 5
PC direct control
an 8x50 right-angle finderscope
Higher magnifications are possible with high optical performance compared to "doubling up" Barlows
wide field imaging
NexStar Plus includes many setup conveniences like customizable max slew speed
1¼" filter threads
Resettable electronic fuses prevent damage if input or output current draw becomes too high
any level of astronomer can master this mount in just a few observing sessions
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Your Optolong Hydrogen-Alpha 7nm Narrowband Filter 2" Mounted (OPT-H-ALPHA-7NM-2) orders ship within 1-2 business days.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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