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View Full Version here: : A pure eline HH555 from a light polluted yard


ptc
09-09-2010, 12:35 AM
after seeing ken's nice HH555 that spliced RGB stars atop an emission line image, I think it is appropriate to see what a pure emission line image looks like.

This was shot using 3nm Custom Scientific filters from my light polluted backyard in the San Francisco Bay area back in 2006 using an 18" f/12.6 classical cassegrain used at 3366mm and a KAF3200ME sensor to give an image scale of 0.42"/pixel.

this is the first high resolution image of the area I had seen taken using this multispectral wavelength ordered palette. I had taken an image of the same area using a coarser image scale in 2004 and the same filters but it wasn't as highly resolved as is this one.

2006:
http://www.narrowbandimaging.com/hh555_mk1sn2_cm10_geg_CSs2hao3_page .htm

2004:
http://www.narrowbandimaging.com/ic5070_pelican_nebula_neck_color_pa ge.htm

back in those days a high resolution sensor was 3.2mipixels. My but we have come a long way!

http://www.narrowbandimaging.com/images/hh555__mnk1sn2_cm10_geg_cs_s2hao3_1 0hrs_vga.jpg

Tandum
09-09-2010, 01:15 AM
That's one long range canon you got there richard. 450mm @ F12.6 WOW !!!