How can I compare scanning back and film exposure settings?
A scanning back’s Line Time setting is equivalent to the shutter speed setting for a film exposure, and each recording medium also has an ISO sensitivity rating (adjustable with the scanning back). A scanning back’s range of Line Time and ISO sensitivity combinations can be compared to traditional film exposures using the following relationship: (scanning back’s ISO setting x Line Time setting) = (film ISO rating x shutter speed setting) Scanning backs have a somewhat limited range of Line Time settings – the LONGEST Line Time setting for all models is 1/8 second per line, while the SHORTEST Line Time setting for most models is 1/240 second per line, or 1/160 second per line for the Super8K-HS. However, scanning backs also have a fairly broad range of ISO sensitivity settings that helps to extend their usability – the two “E” models have an ISO range from 100 up to 1600, the 6000-HS and Super6K-HS have an ISO range from 200 up to 3200, and the Super8K-HS ranges from ISO 120 up to 2000.
Related Questions
- When scanning from photos or even film material (transparency) sometimes the scan result shows a regular pattern all over the image - this can be a moir© pattern, can it?
- What scanning settings will give the best OCR (Optical Character Recognition) accuracy?
- How does the 1000-DR image quality compare with film?
