Celestron CPC DELUXE 1100 HD, Инструкция по эксплуатации, Страница: 20 / 75

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ĎėėĔėĚĕĕĔėęđĚęĈčĊĘ
Š‡†‰‡’–‹ ƒŽ–—„‡‹•‡“—‹’’‡†™‹–Š‹””‘”–‡•‹‘ Ž—– Š‡•–‘
help support and minimize lateral movement of the primary mirror
during astrophotography.
To use the mirror clutches:
͙Ǥ •‡–Š‡ˆ‘ —•‘„–‘ƒ†Œ—•––Š‡’”‹ƒ”›‹””‘”–‘–Š‡†‡•‹”‡†ˆ‘ —•Ǥ
͚Ǥ  ‡‹ˆ‘ —•ǡ–—”–Š‡–™‘‹””‘”Ž‘ ‘„• Ž‘ ™‹•‡—–‹Ž„‘–Šƒ”‡
very tight and can be turned no further.
Warning! Once the mirror is locked down, do not turn the focuser
‘„™‹–Š‘—–Ž‘‘•‡‹‰–Š‡‹””‘”Ž‘ •Ƥ”•–ǤŽ–Š‘—‰Š–—”‹‰
the focus knob should not damage the telescope, undue stress can
be placed on the focus mechanisms causing excessive image shift
while focusing.
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ĆđĈĚđĆęĎēČĆČēĎċĎĈĆęĎĔē
‘— ƒ Šƒ‰‡–Š‡’‘™‡”‘ˆ›‘—”–‡Ž‡• ‘’‡Œ—•–„› Šƒ‰‹‰–Š‡
‡›‡’‹‡ ‡ȋ‘ —Žƒ”ȌǤ‘†‡–‡”‹‡–Š‡ƒ‰‹Ƥ ƒ–‹‘‘ˆ›‘—”–‡Ž‡• ‘’‡ǡ
simply divide the focal length of the telescope by the focal length of the
‡›‡’‹‡ ‡—•‡†Ǥ‡“—ƒ–‹‘ˆ‘”ƒ–ǡ–Š‡ˆ‘”—ŽƒŽ‘‘•Ž‹‡–Š‹•ǣ
Let’s say, for example, you are using the 40 mm Plössl eyepiece. To
†‡–‡”‹‡–Š‡ƒ‰‹Ƥ ƒ–‹‘›‘—•‹’Ž›†‹˜‹†‡–Š‡ˆ‘ ƒŽŽ‡‰–Š‘ˆ›‘—”
telescope (the CPC 800, for example, has a focal length of 2032 mm) by
the focal length of the eyepiece, 40 mm. Dividing 2032 by 40 yields a
ƒ‰‹Ƥ ƒ–‹‘‘ˆ͙͝’‘™‡”Ǥ
Although the power is variable, each instrument under average skies
Šƒ•ƒŽ‹‹––‘–Š‡Š‹‰Š‡•–—•‡ˆ—Žƒ‰‹Ƥ ƒ–‹‘ǤŠ‡‰‡‡”ƒŽ”—Ž‡‹•–Šƒ–
͘͞’‘™‡” ƒ„‡—•‡†ˆ‘”‡˜‡”›‹ Š‘ˆƒ’‡”–—”‡Ǥ ‘”‡šƒ’Ž‡ǡ–Š‡
͘͘͠‹•͠‹ Š‡•‹†‹ƒ‡–‡”Ǥ—Ž–‹’Ž›‹‰͠„›͘͞‰‹˜‡•ƒƒš‹—
—•‡ˆ—Žƒ‰‹Ƥ ƒ–‹‘‘ˆ͘͜͠’‘™‡”ǤŽ–Š‘—‰Š–Š‹•‹•–Š‡ƒš‹——•‡ˆ—Ž
ƒ‰‹Ƥ ƒ–‹‘ǡ‘•–‘„•‡”˜‹‰‹•†‘‡‹–Š‡”ƒ‰‡‘ˆ͚͘–‘͛͝’‘™‡”ˆ‘”
‡˜‡”›‹ Š‘ˆƒ’‡”–—”‡™Š‹ Š‹•͙͘͞–‘͚͘͠–‹‡•ˆ‘”–Š‡͘͘͠–‡Ž‡• ‘’‡Ǥ
ĆČēĎċĎĈĆęĎĔēȂ
‘ ƒŽ‡‰–Š‘ˆ‡Ž‡• ‘’‡ȋȌ
‘ ƒŽ‡‰–Š‘ˆ›‡’‹‡ ‡ȋȌ
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ĊęĊėĒĎēĎēČ ĎĊđĉĔċĎĊĜ
‡–‡”‹‹‰–Š‡Ƥ‡Ž†‘ˆ˜‹‡™‹•‹’‘”–ƒ–‹ˆ›‘—™ƒ––‘‰‡–ƒ‹†‡ƒ‘ˆ
–Š‡ƒ‰—Žƒ”•‹œ‡‘ˆ–Š‡‘„Œ‡ –›‘—ƒ”‡‘„•‡”˜‹‰Ǥ‘ ƒŽ —Žƒ–‡–Š‡ƒ –—ƒŽ
Ƥ‡Ž†‘ˆ˜‹‡™ǡ†‹˜‹†‡–Š‡ƒ’’ƒ”‡–Ƥ‡Ž†‘ˆ–Š‡‡›‡’‹‡ ‡ȋ•—’’Ž‹‡†„›–Š‡
‡›‡’‹‡ ‡ƒ—ˆƒ –—”‡”Ȍ„›–Š‡ƒ‰‹Ƥ ƒ–‹‘Ǥ‡“—ƒ–‹‘ˆ‘”ƒ–ǡ–Š‡
formula looks like this:
•›‘— ƒ•‡‡ǡ„‡ˆ‘”‡†‡–‡”‹‹‰–Š‡Ƥ‡Ž†‘ˆ˜‹‡™ǡ›‘——•– ƒŽ —Žƒ–‡
–Š‡ƒ‰‹Ƥ ƒ–‹‘Ǥ•‹‰–Š‡‡šƒ’Ž‡‹–Š‡’”‡˜‹‘—••‡ –‹‘ǡ™‡ ƒ
†‡–‡”‹‡–Š‡Ƥ‡Ž†‘ˆ˜‹‡™—•‹‰–Š‡•ƒ‡͘͜‡›‡’‹‡ ‡ǤŠ‡͘͜
ŽÚ••Ž‡›‡’‹‡ ‡Šƒ•ƒƒ’’ƒ”‡–Ƥ‡Ž†‘ˆ˜‹‡™‘ˆ͜͞λǤ‹˜‹†‡–Š‡͜͞λ„›
–Š‡ƒ‰‹Ƥ ƒ–‹‘ǡ™Š‹ Š‹•͙͝’‘™‡”ǤŠ‹•›‹‡Ž†•ƒƒ –—ƒŽƤ‡Ž†‘ˆǤ͡λǡ‘”
almost a full degree.
To convert degrees to feet at 1,000 yards, which is more useful for
terrestrial observing, simply multiply by 52.5. Continuing with our
‡šƒ’Ž‡ǡ—Ž–‹’Ž›–Š‡ƒ‰—Žƒ”Ƥ‡Ž†Ǥ͡λ„›͚͝Ǥ͝ǤŠ‹•’”‘†— ‡•ƒŽ‹‡ƒ”
Ƥ‡Ž†™‹†–Š‘ˆ͜͟ˆ‡‡–ƒ–ƒ†‹•–ƒ ‡‘ˆ‘‡–Š‘—•ƒ†›ƒ”†•ǤŠ‡ƒ’’ƒ”‡–
Ƥ‡Ž†‘ˆ‡ƒ Š‡›‡’‹‡ ‡–Šƒ–‡Ž‡•–”‘ƒ—ˆƒ –—”‡•‹•ˆ‘—†‹–Š‡
‡Ž‡•–”‘ ‡••‘”›ƒ–ƒŽ‘‰ȋ͗͛͡͞͠͝ȌǤ
ėĚĊ ĎĊđĉȂ
’’ƒ”‡– ‹‡Ž†‘ˆ›‡’‹‡ ‡
ƒ‰‹Ƥ ƒ–‹‘
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ĊēĊėĆđćĘĊėěĎēČĎēęĘ
When working with any optical instrument, there are a few things to
remember to ensure you get the best possible image.
Ȉ ‡˜‡”Ž‘‘–Š”‘—‰Š™‹†‘™‰Žƒ••ǤŽƒ••ˆ‘—†‹Š‘—•‡Š‘Ž†™‹†‘™•
is optically imperfect, and as a result, may vary in thickness from one
’ƒ”–‘ˆƒ™‹†‘™–‘–Š‡‡š–ǤŠ‹•‹ ‘•‹•–‡ › ƒƒ†™‹ŽŽƒơ‡ ––Š‡
ƒ„‹Ž‹–›–‘ˆ‘ —•›‘—”–‡Ž‡• ‘’‡Ǥ‘•– ƒ•‡•›‘—™‹ŽŽ‘–„‡ƒ„Ž‡–‘
achieve a truly sharp image, while in some cases, you may actually see
a double image.
Ȉ ‡˜‡”Ž‘‘ƒ ”‘••‘”‘˜‡”‘„Œ‡ –•–Šƒ–ƒ”‡’”‘†— ‹‰Š‡ƒ–™ƒ˜‡•ǤŠ‹•
includes asphalt parking lots on hot summer days or building rooftops.
Ȉ ƒœ›•‹‡•ǡˆ‘‰ƒ†‹•– ƒƒŽ•‘ƒ‡‹–†‹ƥ —Ž––‘ˆ‘ —•™Š‡
viewing terrestrially. The amount of detail seen under these conditions
is greatly reduced. Also, when photographing under these conditions,
–Š‡’”‘ ‡••‡†ƤŽƒ› ‘‡‘—–ƒŽ‹––Ž‡‰”ƒ‹‹‡”–Šƒ‘”ƒŽ™‹–Š
lower contrast and underexposed.
Ȉ ˆ›‘—™‡ƒ” ‘””‡ –‹˜‡Ž‡•‡•ȋ•’‡ ‹Ƥ ƒŽŽ›‰Žƒ••‡•Ȍǡ›‘—ƒ›™ƒ–
to remove them when observing with an eyepiece attached to the
telescope. When using a camera, however, you should always wear
‘””‡ –‹˜‡Ž‡•‡•–‘‡•—”‡–Š‡•Šƒ”’‡•–’‘••‹„Ž‡ˆ‘ —•Ǥˆ›‘—Šƒ˜‡ƒ
stigmatism, corrective lenses must be worn at all times.
͝ǧ͜
Mirror
Clutch
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