Technical Data
Optics Takahashi FS-128 Apochromatic refractor
Focal Lenght 780 mm
Focal Ratio f/6
Exposure Time 30 min exposures
Film un-hypered 35mm Elite Chrome 200 slide film
Scanning data Epson 4870, 3200 dpi resolution in 16-bit mode
Processing Enhanced in Adobe Photoshop 6.0
Location Berkshire, New York
Date of exposure start 1/4/2005
Mount Mountian Instruments, MI-250 NON=GOTO
Tracking ST4, A3 average error
Temperature 23F
Notes California Nebula, NGC1499

nebula 


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Joseph Schaefer 2002