Craig Norris's Photo Gallery

16 bit versus 12 bit A/D
Views from Victoria Peak
Views on the harbour
Views of Tokyo
Views of Taiwan
More of Taiwan
Portraits - Janet
Portraits - Janice
Guest Photographer 1
Guest Photographer 2
Guest Photographer 3
Guest Photographer 4
Guest Photographer 5
More from Michel
Guest Photographer 6
Guest Photographer 7
Guest Photographer 8
Guest Photographer 9
More from Grant
Guest Photographer 10
Guest Photographer 11
Guest Photographer 12
Guest Photographer 13
Guest Photographer 14
Joy of Dance
Australia Holiday
Industrial Photography
In the studio
Feathered friends
New arrival
Bangkok Holiday
U.S. road trip
Engagement Party
Hiking in Hong Kong
Oasis Dance Centre 2003
Family portraiture 1
Family portraiture 2
Family portraiture 3
Oasis Dance Centre 2004
Richard's wedding
Sally's wedding
My wedding
Outback Adventure 2009
Outback Adventure 2010

16 bit A/D in my Epson scanner allows for smooth gradations into shadow areas of the image file, after curves adjustments.  The "trouble areas" shown in this photograph were handled well by the 16 bit A/D conversion.

16 bit A/D conversion

The 12 bit A/D of my old Nikon scanner has resulted in "sudden blacks" in the shadow areas.  In particular the hair of these children has turned to sudden black towards the top and sides of their head.  After curves and levels adjustments in Photoshop, the steps between each A/D sample have been stretched out too far in the black to midtone region.

12 bit A/D conversion

All images on this page copyright Craig Norris.  All rights reserved.