Estimated shipping time 25 days
 NGC 2237, Roseta Nebula –Courtesy of Rogelio Sánchez-Tube: Taka FSQ 106 N a f5 Data: |
CHROMA, Optical Filters for Astronomy Applications.
Lunático introduces the Chroma filters, designed and manufactured by the prestigious American company Chroma Technology Corp., manufacturer of precision optical filters and coatings with 30 years of experience.
The Chroma filters are the highest quality astronomy filters with durable, sputtered hard coatings using single substrates of the best glass, eliminating the need for laminations. All primary filter coatings are applied on the front surface and anti-reflection coatings on the rear surface to prevent ghosting and to maximize transmission.
Highly precise and accurate, the passbands of these filters remain spectrally stable and do not drift in response to extreme temperature fluctuations or changes in humidity. All filters may be used with apertures of f/4 or smaller.
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| Sample image, courtesy of Rogelio Sánchez, with Chroma filters. Click to enlarge. | Sample image, courtesy of Rogelio Sánchez, with «other filters». Click to enlarge. |
Specifications:
- Durable sputter coatings
- Parallelism: <30 arcsec
- Thickness: 3.0 +/-0.05mm
- Filters designed for use with CCD and for f/4.0 or slower
- Transmitted wavefront better than 0.25 waves/inch
L-RGB set composed by
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Transmission curves
If you any doubt, contact us at info@lunatico.es.
