DayStar Recommends 12-35mm
Plossls, Radians and Panoptic eyepieces.
Other DayStar Products:
T-Scanner H-alpha Filter:
- Introduced in 1988, the T-scanner is a non-heated,
tilt to tune filter which is applied at the rear of any tel-
escope of any aperture operating at F/30. Requires
a front mounted Energy Rejection Filter (available in
sizes up to 165mm). T-scanner is not heated and
operates at ambient temperatures with a 40° F cli-
mate range. Best in coastal or temperate climates.
Quantum H-alpha Filter:
- Introduced in 1973, with housing improved in 2007, the Quantum is a heat-
controlled precision tuned filter which is applied at
the rear of any telescope of any aperture operat-
ing at F/30. Requires a front mounted Energy
Rejection Filter (available in sizes up to 165mm).
Quantum filters’ tuning is controlled to 0.1Å accu-
racy and may be tuned up to 1.0Å in red and blue
wing. Operates on 12VDC. Includes LCD readout
and wing-shift button controls, serial interface port
for remote operation, international power supply
and 6 foot extension cord.
Energy Rejection Filter:
Mounted on the front of the telescope before the
objective, a red or yellow colored glass Energy
Rejection Filter (ERF) is designed to absorb excess
UV light before entering the telescope system.
Note that colored ERF glass cannot be used in
conjunction with Calcium line filters. ERF glass is
available in sizes from 50mm up to 165mm.
Calcium II K and H Line Filters:
Calcium II line filters are aimed at one of two impor-
tant emission lines of Calcium at either 3933Å or 3969Å. The Ca II H-Line filter
is designed for visual use. At 5.0Å wide, and higher into the visual spectrum,
it offers a brighter and easier image to see. It is
offered in a Tilt-tune housing like the T-scanner, as
tuning isn’t as critical due to the wide emission line.
The Ca II K-Line 2.0Å filters are for professional
applications intended for observations of the sun’s
atmosphere. It is offered in the Quantum style hous-
ing in order to precisely target subordinate lines
inside the main K line.
For information about other DayStar products, contact your local dealer or
visit: www.DayStarFilters.com
