www.myastroshop.com.au - ProStar Australia ProStar  Ha 15nm Filter

If you often have to photograph the night sky from light polluted areas and you need a damned good light pollution reduction and contrast enhancing filter then no further. At a price far less demanding than most other over-priced brand names, our 15nm Hydrogen Alpha night filter will ensure your long exposures maintain a nice dark background sky and brilliant edge contrast.

 

 
 
The images below were taken by Darrin Nitschke from the light polluted suburb of Strathfield in NSW.

 

 

 

 

 
10 x 20 min @ISO 400 with 8-inch f/4 telescope, modified Canon EOS 400D, Baader MPCC and ProStar 15nm Ha 2-inch filter.
Individually dark framed, stacked in Nebulosity, flatfielded in Pix Insight LE, Processed in Photoshop CS.
 
Credit Darrin Nitschke
Telescope 8 -in f/4 telescope Modified Canon 400D at ISO 400 with Baader MPCC 12 x 12 minute exposures
Each exposure individually dark frame calibrated calibrated images were stacked in Nebulosity with Drizzle - Dynamic Background Extraction was done in Pix Insight LE for flat fielding.

 

 
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