Andover Filters Sloan Z 50mm Gefasst
Original price was: $370.00.$98.99Current price is: $98.99.
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Product description
Like the KRON and JOHN filters, Sloan filters are used to filter out and measure specific bands of light that are emitted by astronomical objects. The difference between SDSS filters and the KRON and JOHN filters is that they are non-overlapping and have steeper transitions between bands.
The Sloan bands are U, G, R, I, and Z. Refocusing is always a problem when changing filters. Andover can minimize this problem by grinding and polishing all filters to a very precisely controlled specified thickness. These filters are also AR coated to provide optimal performance and better imaging. Sloan Digital Sky Survey has created a detailed three-dimensional map of the universe using these filters. (www.SDSS.org)
| Frame | 2" 2" A standard measurement for accessories, expressed as 2 inches. 2" is equal to 50.8 millimetres.Click to read more… |
|---|---|
| Mount material | Aluminium |
| Coating of optical system | Multiply multi-coated |
| Connection (to the telescope) | 50mm 2" |
| Type | Filters Filters No matter whether they are for observing or for astrophotography, filters are very important accessories.Click to read more… |
| Type of build | Pass Filters Pass filters Filters with a pre-determined bandpass rangeClick to read more… |
| Series | Sloan SDSS |
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