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Quantum Calcium II K 2Å PEDaystar Calcium K line Quantum Filters 2. 0 suitable for academic purposes. Ideal application: CCD photography or indoor visual viewing environment. Traditionally, university research has employed the Calcium K line for studies of Calcium on the Sun. These studies have been instrumental in determining depth of the solar atmosphere. Calcium offers TWO strong absorption lines at 393. 3nm and at 396. 9nm, known as the K and H lines. Researchers have

A user will notice the view slowly developing poor contrast towards the outside of the aperture

2” UV/IR Cut Filter lets the full range of sensitivity of the human eye pass

Observation of the complicated structure of subordinate peaks offer views through different levels in the solar atmosphere

Darkening or degradation of the image:

Model No: EP25WA

and the renowned Quantum precision control

Shorter lead times are possible

resulting in the observed pattern

Because of the perfect blocking of UV and IR

5 amps and 5 Volts

Price: $19

but with significantly larger apertures