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Still not sure what is the right gear for you?
Read our 101 article or get in touch. We will be glad to help.
Add description, images, menus and links to your mega menu
A column with no settings can be used as a spacer
Link to your collections, sales and even external links
Add up to five columns
Add description, images, menus and links to your mega menu
A column with no settings can be used as a spacer
Link to your collections, sales and even external links
Add up to five columns
Add description, images, menus and links to your mega menu
A column with no settings can be used as a spacer
Link to your collections, sales and even external links
Add up to five columns
Add description, images, menus and links to your mega menu
A column with no settings can be used as a spacer
Link to your collections, sales and even external links
Add up to five columns
Add description, images, menus and links to your mega menu
A column with no settings can be used as a spacer
Link to your collections, sales and even external links
Add up to five columns
Add description, images, menus and links to your mega menu
A column with no settings can be used as a spacer
Link to your collections, sales and even external links
Add up to five columns
SKU : OL-HASIIOIII-36
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Product Details
H-Alpha 7nm filter is the most popular narrowband filter allowing 7nm bandpass of light centered on a wavelength of 656nm. Extra narrowband SII-CCD 6.5nm and The OIII-CCD 6.5nm filters are designed for nebula observation allowing 6.5nm bandpass of light centered on a wavelength of 500nm (Oxygen-III) and 672nm (Sulfur-II) through, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high and low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow)
specifications
Bandpass | 6.5nm |
Bandpass | 7nm |
Filter Thickness | 2mm |
Filter Type | H Alpha |
Filter Type | OIII |
Filter Type | SII |
Free Shipping | Yes |
Shape | Round |
Size | 36mm |
included items