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Cygnus  Widefield  Images

50 mm lens

    Click on the images to see a higher resolution version (1500 pixels). Caution: large files!

 Date

 2003 June 30

 Optics

 Nikon FT2n camera piggybacked on an AP 900GTO mount, and guided with an A-P

 guidescope and ST-4. Above image Nikkor 50 mm lens; below image Nikkor 

 105 mm lens. A Hutech IDAS light pollution reduction filter was used for all images.

 Exposures

 Above: two images, 23 and 26 min each at f/2.8 on Kodak E200 film, combined with RegiStar. 

 Below:  One image 40 min at f/4.0 on same film.

 Processing  

 Frames were scanned with a Polaroid SprintScan 35Plus at 2700 ppi. Final processing with

 Levels, Curves, and unsharp mask in Photoshop.

 

105 mm lens