DSC_0925.jpg by John Small Photography

John Small Photography | all galleries >> Kentucky >> Winter >> Winter 2007-8 > DSC_0925.jpg


09-FEB-2008

Late afternoon sun block

Tokina 16-50mm f/2.8 AT-X Pro DX w/circular polarizing filter

Nikon D300
1/100s f/11.0 at 22.0mm iso800 full exif

other sizes: small medium large original auto

John Small Photography		19-Feb-2008 17:56
Following a discussion of this image on www.drpreview.com, the current image has been redeveloped with Lightroom, bringing up the shadows with increased fill and the midtones with increased brightness while avoiding highlight clipping other than spectral reflections. However in this process there is color noise visible in the foreground seen at 100% crop that is not so apparent in the posted image. It has also been pointed out that opening the lens to f/8 and lengthening the shutter speed to 1/50 sec will decreased the required ISO to 200, thereby increasing the available dynamic range by up to a commensurate 1-2 stops. Ref:http://forums.dpreview.com/forums/read.asp?forum=1039&message=26784689

Lindsay		14-Feb-2008 23:23
You are such a talent! Thanks for the info.

John Small Photography		14-Feb-2008 03:23
Seeing the full dynamic range presented here requires one's monitor to be calibrated. If the highlights appear blown or clipped then the brightness or contrast is set too high. If detail is lost in the foreground then the brightness is not sufficient or contrast is too high. Also proper viewing conditions are important, mostly a darkened environment to view the computer screen. Lastly, only a color aware browser will show the true colors in this image and Microsoft's IE7 is not yet color aware.

John Small Photography		14-Feb-2008 03:15
Also, the sun is behind the dark cloud in the center of the sky. A circular polarizing filter was used to maintain the blue in the sky. Believe it or not, nothing is over-exposed in this image! The brightest highlights are taken right up to the point of over-exposure using a RAW image from the camera and developing in Adobe Camera Raw within Adobe Lightroom 1.3.

John Small Photography		14-Feb-2008 03:11
This image stretched the dynamic range of the Nikon D300 CMOS sensor to the maximum pushing the foreground into darkness in order to render the clouds. The absolute DR is about 11-12 stops, with useful DR said to be about 8 1/2 stops. Still, this is impressive when compared to slide film of 5 stops and color print film of 7 stops. For more on DR see the images herehttp://www.pbase.com/jtsmall/nikon_d300

Lins		14-Feb-2008 02:39
Amazing light in the clouds!

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