Celestron 93711 Panduan Pengguna - Halaman 10

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Juga untuk Celestron 93711: Panduan Pengguna (12 halaman)

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Focusing Tips

To achieve best focus, concentrate on a high contrast feature of the object you are imaging.

Focusing on small features such as a moon's shadow on Jupiter or Cassini's division in the

rings of Saturn will guarantee best focus across the entire image.

Once the frames of your video are stacked, the overall brightness of the composite (stacked)

image is usually brighter than its individual component frames. For this reason, it is best to keep

the brightness of the video image seen on the screen dimmer than you would normally desire. It

is important that no part of the image is overexposed to assure the maximum amount of detail

in the final composite image.

Collimation

No matter what type of telescope you image with, poor collimation (alignment of the optics) will

ruin your chances for a good image. Before you begin imaging, always check the collimation of

your instrument and make adjustments if necessary. Refer to your telescope's owner's manual

for instruction in collimating the optics.

Finding Objects

At first it can be difficult to locate individual planets due to their relative brightness. To make it

easier to initially find your object in the imaging window, increase the brightness and gain controls

on the Exposure toolbar. This will allow you to better see the object as it passes through the

imaging window. Once you have located and centered the object, you can adjust the setting

until the object is at the desired brightness and contrast.

How long to take Streaming Video

At first you may think that the more frames you record, the better. However, there are some

limitation to the duration of video and the amount of frames you can acquire. Resolution and

file size can both limit the length of time of your video.

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