DayStar Filters CALCIUM QUARK Посібник - Сторінка 3

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USAGE:

The Calcium Quark has a standard eyepiece snout so that it can be

inserted directly into the eyepiece drawtube.

The filter must be plugged in using the supplied power supply. The

etalon cavity is precision heated to regulate the wavelength of the filter

output.

Any other USB power source you wish to use must be rated for at least

1.5 amps at 5 volts. Computer USB ports and cell phone chargers do

not normally support this much power.

After letting the filter come up to temperature and settle, the light will turn

green and viewing can begin.

Because the Quark requires additional backfocus, you will need to dial

the focus knob inward quite significantly.

Included with the Calcium

quark are three front snouts that will allow you you extend or compress

the amount of backfocus used by the Quark by changing which snout is

threaded onto the front of the Quark:

Standard configuration (silver 1.25" snout): 67mm backfocus

2" front snout: 61mm backfocus.

1.25" black extension snout: 99mm backfocus. Remove diagonal.

If your telescope has limited focus travel and none of the included snouts

permit reaching focus, you may need to use a 1.25" diagonal instead of a

2" diagonal, or you may need to remove the diagonal entirely in order to

reach focus.

Knob tuning:

A knob is provided to adjust the center wavelength of the filter. Turn the

knob counter clockwise to lower the wavelength towards the blue by up

to 0.5Å. Turn clockwise to raise the wavelength towards the red by up to

0.5Å. Each click of the knob is 0.1Å.

Little change will be visible within 1.0Å of CWL range, as the Calcium II H

line is very wide.