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Orion Nebula. Wide field 300mm Zeiss s-Tessar

28/11/2014
Telescope: 300mm Zeiss Tessar
Mount: Polarex 4" 105mm
System: Prime focus
Camera: Canon EOS 550DA
Exposure: 20 X 15 sec + 30 x 30sec + 30 x 60sec @ 800asa + darks and flats
Autoguiding: none
Treatment: Nebulosity and Photoshop
Remarks: piggy back on the 4" Polarex refractor

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