DayStar Sub-angstrom Hydrogen Alpha filtters are rear-mounted filter assemblies designed to operate at the eyepiece position of the telescope. This allows greater adaptability to different telescope configurations and for larger telescope apertures. Rear-mounted filter systems allow for high resolution observing and imaging at focal lengths frequently in excess of 1000mm. Our filters are classified by bandwidth, not aperture. Narrower bandwidth filters reduce off-band transmitence and increase contrast. The smaller the bandwidth, the higher the contrast between on and off/band light.
- DayStar T-Scanner Filters require NO POWER to operate properly.
- DayStar T-Scanner Filters are very inexpensively priced.
- DayStar T-Scanners can be mounted on almost any telescope from 60mm to 600mm.
- DayStar T-Scanners can be used full aperture* on most telescopes.
- DayStar T-Scanner Filters can show a choice of the full disk or high resolution.
- DayStar T-Scanners are robust. Shipping by ground service does NOT void our 10 year warranty
The T-Scanner model (like all non-heated narrow bandpass solar filters) is designed to operate best at an ambient 75 degree temperature with a tilt knob adjustment to accomodate a shift of approximately 20 degrees F. Observers in climates likely to vary greatly who want to use their filters year-round without temperature concerns should consider the Quantum Series as an affordable option. |
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