February 7, 2013

From LPOD
Revision as of 19:24, 1 January 2015 by Api (talk | contribs) (Created page with "__NOTOC__ =Albumen Moon= <!-- ws:start:WikiTextHeadingRule:0:<h1> --> <!-- ws:start:WikiTextLocalImageRule:6:<img src="/file/view/LPOD-Feb7-13.jpg/405045332/L...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

Albumen Moon

LPOD-Feb7-13.jpg
image by Nicolas Dupont-Bloch, Nantes, France

I took this last quarter Moon through haze and between clouds. Despite these poor conditions, I was thinking I was lucky because I remembered the early photographers with their low-sensitivity films. I tried to make this image resemble an old-style albumen print, like the fine, warm and high-contrast first quarter photograph by Lewis M. Rutherfurd in 1865. Modern techniques allow a hard but noiseless contrast, unsharp mask and wavelets, and local correction of low-light areas. Thus it's possible to mimic an old-style albumen print, without loss of accuracy of modern digital images. I finally added some artificial noise to render the "film grain".

Nicolas Dupont-Bloch

Technical Details
Feb 3, 2013. 10-inch Newtonian, a Barlow lens, a red filter and a monochrome CMOS camera (QHY5). The Moon was about 22° high. This is a mosaic of four 200-frame stacks.

Related Links
Nicolas' website: Astrophography from Nantes Under Clouds

COMMENTS?

Click on this icon File:PostIcon.jpg at the upper right to post a comment.

Retrieved from "https://www2.lpod.org/index.php?title=February_7,_2013&oldid=6071"