Instruction manual

Instruction Manual Roundshot D3 - version 4.05 – May 2013 - © by Seitz Phototechnik AG / Switzerland www.roundshot.ch page 50
4. Tips & Resources (How To . . .)
4.1 … set the b-value (camera head position)
Contrary to traditional digital cameras, the Roundshot D3 does not acquire the
image by a „oneshot“ exposure. The image is created by a fast TDI scan. The
techniques involved for this technology are different from traditional digital
photography. Setting the image parameters correctly will have a visible impact on
image quality.
This is why we have summarised the most important tips & resources in this section.
When applied closely these tips will allow enhanced image quality (better
sharpness, better exposure, limited noise and limited artefacts). Further techniques
(for example shift) allow to exploit the full potential of this high resolution camera.
The b-value indicated in the distance field of the software corresponds to the best
camera head position on the optical bench. Setting the camera head position
correctly is necessary to obtain the best sharpness.
The optical bench can be attached in 2 positions on the motor (A or B) as shown in
the examples below. The A position is optimised for small b-values lenses (shorter
lenses) while the B position allows higher b-values lenses (longer lenses).
A position
B position
B A