Bedienungsanleitung Meade ETX-90AT (Seite 42 von 60) (Englisch)

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• If the camera is not directly coupled to the eyepiece, keep it as close to the

eyepiece as possible and center the image to be photographed to minimize

vignetting (darkening of the edges of the photo).

• Try to block ambient light (from street lights, house, etc.) from the eyepiece and

the camera with a piece of cardboard, a screen, etc.

• Keep extra (charged) batteries on hand for your camera as digital cameras often

drain batteries in a short period of time. Rechargeable Lithium batteries provide

power for a longer period than non-rechargeable batteries. If practical, use an AC

adapter.

• Avoid short-focus eyepieces. They present many difficulties for digital cameras.

• If using manual focus, set to infinity. Otherwise, using the camera's autofocus is

OK.

• Experiment with your camera's exposure, brightness and /or contrast settings.

Keep notes for future reference.

• Clean eyepieces and camera lens as needed.

• Many digital cameras have a manual ISO setting. Short exposures times work the

best.

• Use your camera's highest image quality and lowest compression settings.

Although this fills up your camera's memory more quickly, it produces the best

quality photos.

• Use the camera's timer or remote shutter release (if available for your camera) to

minimize vibration. Wireless shutter releases may be available for some model

digital cameras. If you do not have a shutter release, use the

camera’s timer (sometimes called “self-timer”), which is available with most

digital cameras. The timer may also minimize vibration.

Photography with Meade’s Autostar Suite

The Autostar Suite with Meade LPI (Lunar Planetary Imager) and Planetarium software

turns your Meade ETX telescope, Autostar and PC into even more powerful and easy-

to-use astronomical instrument.

LPI (Lunar Planetary Imager,

Fig. 32) combines the power of an electronic

astronomical imager with the simplicity of a web cam. Check out the following LPI

features:

• Achieve great results the first time out on the Moon, planets, brighter deep-sky

objects and terrestrial targets.

• Easy to use with real-time display of object on your PC screen. Just center, focus

and shoot.

• Magic Eye software-assisted focusing.

• Automatic and manual exposure control from .001 to 15 seconds (up to 450x longer

than web cams).

• Automatically takes multiple exposures.

The Autostar Suite Software includes powerful tools to help you get the most from

your Meade ETX telescope:

• Sophisticated planetarium program with over 19 million objects.

• Select objects from the planetarium display and the telescope slews to those

objects.

• Create your own Guided Tours.

• Advanced Image Processing Software including Unsharp Masking, Convolution

Filtering and many other features.

• Control all Autostar functions from your PC.

• Talking Telescope software translates Autostar text to synthesized speech through

PC speaker.

• Includes a cable to connect your ETX model to your PC.

• Point-and-click Autostar tour generation.

• Create observing lists and download to Autostar.

Fig. 32: The Lunar

Planetary Imager.

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Meade ETX-90AT Seite 42

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