DayStar Filters Magnesium Quark Eyepiece Manuel de l'utilisateur - Page 3

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USAGE:

The Quark is rlO""-"\"",, for use on F/4 to FIg refractors. Combined with

an integrated 4.3x telecentric barlow, this results in a F/17 to F/38 final

respectively, to provide the best performance from your filter.

Because of the included barlow, images will appear 4x larger than

without the

and ample additional backfocus is available.

The filter must be plugged in using the

power supply.

The

etaIon cavity is

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.

USB

and cell phone

not normally

this much power.

After letting the filter come up to

and

the

will turn

green and viewing can begin.

Knob tuning:

You may desire to adjust the center wavelength of the filter.

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 0.5A. Turn clockwise to raise the

towards the red by up to

Each click of the knob is 0.1 A.

Tuning is required on telescopes with "droop" of the

because

even very slight tilts will

lower the center wavelength of the

filter. Turn the knob clockwise 2-3 clicks and wait 5-10 minutes to see if

the view is improved.

Additional tuning can be

just

in mind that after every

of the knob the filter must settle in

for

approximately 5-10 minutes before your change becomes effective.

Note: To be sure you are on Magnesium, the best method is to observe

(or image at the same exposure time and gain) for several knob

The tuning is on band when the surface is DARKEST and has

the most contrast.