240MM Medium Flat Field Panel with Aluminium Alloy Frame (Not Include The Magnet)

Description

• The the diameters of dew shield 240MMthe diameters are matched to fit RC8200F4 Newtonian, and C8HD telescope.
• after lens imaging telescope, general center imaging rate is high, the four surrounding, is slowly reduced light.Flat owners, if taken to offset the reduction of light.
• The early stage of the flat field shooting method is for about 30 minutes before the sun to upgrade, the sky has no bright stars area, time difficult to control, then a person is also very tired.
• To the sky for a few seconds of exposure to shoot, is limited by the weather, time and energy.

Product details
The the diameters of dew shield 240MMthe diameters are matched to fit RC8200F4 Newtonian, and C8HD telescope.

Weight: 380 g
Application:
1, after lens imaging telescope, general center imaging rate is high, the four surrounding, is slowly reduced light.Flat owners, if taken to offset the reduction of light.
2, the early stage of the flat field shooting method is for about 30 minutes before the sun to upgrade, the sky has no bright stars area, time difficult to control, then a person is also very tired.
To the sky for a few seconds of exposure to shoot, is limited by the weather, time and energy.
Shooting method:
During the day, looking for a no cloud light average area, mount flat field plate, connected to the camera, the use of deep space, the focal length of the same, to explode light 2-4 seconds, get the same curve and as the sun rose, superposition of use.

Note; Due to the limitation of mail company, without magnet.

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