DayStar Filters CALCIUM QUARK Руководство - Страница 4

Просмотреть онлайн или скачать pdf Руководство для Аксессуары DayStar Filters CALCIUM QUARK. DayStar Filters CALCIUM QUARK 17 страниц.

Additional tuning can be performed, just keep in mind that after every

adjustment of the knob the filter must settle in temperature for

approximately 5-10 minutes before your change becomes effective.

Tuning can also be used to observe Doppler shifted features moving

towards or away from you. A feature moving towards you will be brighter

in blue (counterclockwise) wing shift, away from you will be reddened

(clockwise knob tuning).

ENERGY REJECTION:

Energy Rejection Filters reduce the heat load on your filter assembly by

absorbing or reflecting UV and/or IR light and transmitting light in the

visual spectrum.

Note that Red and Yellow glass ERFs are NOT compatible with the

Calcium Quark as they do not pass the Calcium wavelength, by the

nature of colored glass.

Please note, a Herschel Wedge or white light filter cannot be used with

the Quark. Those filters block 99.999% of all light, including the desired

Calcium H light.

REFRACTORS:

For brief observing sessions using refractors with less than 80mm of

aperture when not using a tracking mount, no rejection is necessary. Be

alert for any rise in temperature of your telescope, diagonal, or Quark.

For telescopes under approximately 150mm of

aperture, a screw in UV/IR cut filter can be

employed in front of the telescope diagonal.

The UV/IR cut filter reflects UV and IR light

back out the front of the telescope, reducing

temperatures inside. Do not use a UV/IR cut

filter with a telescope with an integrated rear

field flattener or Petzval lens. The UV/IR cut filter must be the first optical

element to encounter concentrated light. Note that Calcium falls outside

the passband of some UV/IR cut filter designs, so always verify that a

prospective UV/IR filter passes 397nm before purchasing.