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Description

Daystar CALCIUM QUARK FilterDaystar Quark Calcium H Model Filter is the first Calcium Eyepiece for F 7 or longer focal ratio refractors. This new, All In One design marries high quality components of adapters, snouts, and Daystar Calcium H filter into one simple assembly. Through design efficiency and optimization, now users can enjoy the known high quality optics of Daystar at an affordable price. Why Calcium H line? Many astronomers forget that the Calcium H line and K line

01Å in center wavelength

corresponding to 1

Tuning knob allows wing shifting +/- 0

Baffles have been added to increase contrast and AR coatings are optimized for the 656nm wavelength

Remote Control: RS-232 serial port required

Thread: Male/Female 'T' thread

7Å ) filtering systems

5Å is necessary to properly isolate the line from the continuum

(or don't) - Observe

but it will be around 5Å

This filter is optimized for systems with focal ratios between f/0

dust-free storage