Daystar ATM H-Alpha 0.7A Solar Filter For Sale
This item has been shown 22 times.
Daystar ATM H-Alpha 0.7A Solar Filter :
In very good cosmetic and working condition.
Info from Daystar:
ATM series filtering systems appear similar to the University series but
lack their uniformity, regardless of that for most users the ATM series
provides wonderful visual and imaging fidelity at an affordable cost.
Smooth spectral uniformity offered by instrument quality etalons satisfy
the needs of most observers. Informative filtergrams can be made with
slight dodging in the darkroom. Nominal at f/32, (full aperture or
stopped down) with optical systems delivering an effective focal length
of up to 2000mm the user will find the spectral uniformity of these
filters impressive. The ATM series were available in a bandpass range of
from 0.95Å to 0.50Å. The ATM series incorporate a cylindrical
temperature regulated oven similar to that provided with the University
series filters. If the main stay of the observing program concentrates
on filtergrams and CCD imaging, then we suggested clients consider the
advantages of the University (now improved with the QUANTUM PE) series
filter. If the main desire is for visual work and taking basic
filtergrams, these could be an excellent choice. During the course of
manufacturing a filtering unit, each is thermally tuned by a precision
factory-calibrated oven to maintain proper bandpass tuning. We continue
to be amazed by images and views delivered by these systems.The product shown is the exact item up for sale. Please email us any questions you may have concerning this listing.
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