The C-series photographs are suitable for stock photography. These are captured on 35mm slides. The D-series photographs are available as well, however these purely digital images may not be suitable for most commercial applications due to their inferior resolution. The newer K-series photographs are captured as high resolution digital images at 4672 x 3104. Printed at 300dpi, they will enlarge to 15.5 x 10.4in or 23.3 x 15.5in at 200dpi.
Digital Black and White imagery is currently under development for C/K-series photographs. I will be offering more information about this when I have the process perfected.
Please see my stock image page for further information.