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M42, M43 & Running Man (Stacked Film)

astrophotography dso Meade catadioptric


Alen Koebel

M42, M43 & Running Man (Stacked Film)

This is a full-frame image on 35mm slide film. It is a stack of three exposures totalling 40 minutes. All were taken through a Hutech IDAS LPS-P1 filter, which made it a bit of a challenge to get any of the original blue back in the image. It's still far too red, even given the film I used. Stacking isn't supposed to work as well for scanned film images as it does for images that are taken with digital sensors (film is by no means a linear-responding recording medium). But it is still quite effective at controlling noise, in this case film grain.

_Imager: Olympus OM-1 + Hutech IDAS LPS-P1 filter, Elite Chrome 200 35mm slide film pushed one stop, scanned at 4,032 x 2,688 (10.8 MP). _Scope: Meade LXD55 6-inch f/5 Schmidt-Newtonian on Vixen GP-DX with SkySensor 2000PC. _Exposures: Three @ 5min, 15min, 20min. _Guider: Manually guided using 80mm f/5 guidescope. _Date: September 4, 2005. _Location: Near Ayton, Ontario, Canada.

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