4
Cleaning
As with most telescopes and equipment there will be a build up of dust and debris on the lens and mechanical
components after sitting out all day. For those who are familiar with cleaning telescopes we recommend you use
the same techniques. For those who are new to the care of these instruments we can offer the following
guidelines:
Blow off loose dust and dirt using a clean dry air source at low volume. Do not use shop compressed air, which
contains oil and will further contaminate the instrument. Stubborn particulates can be brushed from the surface
with a static free lens brush. Use gentle sweeping motions. Fingerprints and smudges can be removed using
lens tissue or a Kleenex type tissue product. Fold the tissue or cloth to make a "pad", apply a cleaning product to
the end of the pad dampening it evenly (do not apply solution to the lens), wipe in circular motion starting at the
center and working around the edge and off in one complete motion. Be firm, but do not rub. Blow lightly to help
remove residual solution before it "spots" the surface. Residual dust from the cloth can be blown off.
Consult your local dealer or call Lunt Solar Systems with any questions or concerns.
Do not use Acetone or strong degreaser type products, household cleaning agents, paper towels, tissues with
added scent or color (plain tissues only), or bleach or acidic products which will damage the anodized surfaces.
A few more definitions
Hydrogen-alpha:
The wavelength of light in the spectrum that these scopes allow you to look at. Centered at
656.28nm.
Bandwidth:
The width of light at a given wavelength that is allowed to pass. The LS50THa with Pressure Tuner
is <0.75 Angstrom. As bandwidth is reduced more surface detail of the Sun can be resolved. This can be
accomplished thru double-stacking with an LS50C Filter (<0.55 Angstrom).
Angstrom:
The unit of measurement for light. 1 Angstrom = 0.1nm.
Etalon:
A resonating cavity produced thru the fabrication of highly precise optical surfaces.
Lunt-Solar-Systems – Exclusive European Distributor
Bresser GmbH
Gutenbergstrasse 2, D-46414 Rhede, Germany
Phone: +49 (0) 2872 – 80 740
E-Mail: [email protected]
www.bresser.de
