DayStar Filters SOLAR SCOUT 매뉴얼 - 페이지 8

{카테고리_이름} DayStar Filters SOLAR SCOUT에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. DayStar Filters SOLAR SCOUT 17 페이지. 60mm dedicated solar telescope

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Solar Imaging Tips:

Daystar

recommends

MONOCHROME

imaging

possible

for

results.

The

availability

cameras

and

cameras has offered a

simple

opportunity

solar observers to image

the

Sun

Alpha with a Digital SLR camera. Please be advised, however, that due

to the nature of monochromatic light and its effects on a CCD camera,

certain negative effects are likely to occur.

The DSLR imager must be aware that most camera manufacturers

(Canon and Nikon) use an IR blocking filter which greatly reduces the

transmission of Hydrogen Alpha light. DSLR cameras without this IR

blocking filter will have better sensitivity imaging in Hydrogen Alpha.

The imager should also appreciate that even after considering IR

blocking filters, that the COLOR CCD chip is constructed in a way that

only 1 in 4 pixels detect red light. The other 3 sensors only detect blue

and green because the pixels are actually permanently covered with a

colored dye for each corresponding color. So a color CCD chip (in a

DSLR or a CCD camera) will only offer 1/4 the sensitivity and 1/2 the

resolution of a monochrome chip.

in aftermarket adapters offer a simplified solution for the issue. This

effect is a concern for both color and monochrome sensors.

An optional accessory is available from DayStar (MG-0408 or IECC)

which can be used between the DSLR and Scout telescope to adjust the

light angle and extinct the interference pattern.

CCD

whenever

best

recent

CCD

DSLR

for

Hydrogen

Another effect present in CCD imaging of

monochrome light of Hydrogen Alpha is the

interference pattern - or Newton's Rings.

effect is similar to interference testing of an optical

surface between two flat surfaces. The sensor

and cover slip cause a small interferometer inside

the camera and cause a Newton's Ring moire'

pattern. The CCD chip must be tilted to a minor

degree to prevent this pattern. Recent advances

The