Monthly Archives: February 2015

I tried a number of combinations with a Televue x2.5 and x5 barlow lens with and without an Atronomik IR pass filter (742 nm filter that passes light longer than this wavelength). The visible part of the spectrum is more … Continue reading →

21-02-2015 H-Alpha, O-III, S-II Astronomik filters. AG12 and QSI683, 12 x 300 sec images at 2×2 binning (low gain). Guided with Lodestar And with slightly more emphasis on the red channel…    

The bright star at the top of the picture is Alnitak – the left hand star of the 3 stars in Orion’s belt. LRGB image created using the AG12 and QSI 683 taken on 22-01-2015 x9 Luminance @1×1 bin 600s … Continue reading →