DayStar Hydrogen Alpha T-Scanner Filters.

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.

All DayStar Hydrogen a filter assemblies need to be used in conjunction with a
lens cover and Energy Rejection Filter. See Energy Rejection Filters for sizing and pricing.

Prices:
0.3 Angstrom T Scanner - £3979.00
0.4 Angstrom T Scanner - £3528.00
0.5 Angstrom T Scanner - £2507.00
0.6 Angstrom T Scanner - £1943.00
0.7 Angstrom T Scanner - £1379.00
0.8 Angstrom T Scanner - £1034.00

All plus £10.00 shipping & insurance.

The Astronomy Shop

1 Tone Hill. Wellington

Somerset TA21 0AU

United Kingdom

Telephone: +44 (0)1823 665510