The California Nebula in Perseus- CCD and DSLR Versions

 

 

 

 

 

 

 

 

Ha only CCD Version

Data
Taking Camera SBIG ST-8300M Nova Scotia,Fall 2012 ~mag 6.4 @-25C
Imaging OTA Canon EF 300mm f2.8L IS
Equivalent focal length and ratio 300mm f2.8
Mount Losmandy G11 Gemini 2
Guiding PHD with SBIG STi and 100mmFL/f2.8 Guidescope
Ha Only Image - Total integration time 5h40min Ha 34X10' Astrodon 3nm filter
Calibration and Stacking Darks,Flats and Bias - PixInsight
Processed PixInsight and Adobe Photoshop CS4

 

 

 

 

 

 

 

 

 

 

 

 

Ha+R,G,B CCD Version

Data
Taking Camera SBIG ST-8300M Nova Scotia,Fall 2012 ~mag 6.4 @-25C
Imaging OTA Canon EF 135mm f2.0L
Equivalent focal length and ratio 135mm f4.0
Mount Losmandy G11 Gemini 2
Guiding PHD with SBIG STi and 100mmFL/f2.8 Guidescope
Ha+RGB Image - Total integration time 7h15min Ha 11X15' Astrodon 3nm filter, 9X10' each Astrodon R,G,&B Series E Filters
Calibration and Stacking Darks,Flats and Bias - PixInsight
Processed PixInsight and Adobe Photoshop CS4

 

 

 

 

 

 

Below - DSLR Version Imaged from Nova Scotia Summer and Fall, 2011 through a Canon 300mm f2.8 telephoto lens using a modified Canon T3i DSLR and an Astronomik 6nm H alpha filter.

 

 

 

 

 

 

 

 

 

 

 

 

 

The DSLR version is the result 6 hours and 20 minutes total integration time with 348 minutes being H alpha and the remainder RGB . All exposures were at f2.8 and ISO 800.

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