DPReview.com is closing April 10th - Find out more

"Sigma SD1 Merrill not good for scanning negatives/slides"

Started Sep 10, 2018 | Discussions thread
D Cox Forum Pro • Posts: 32,979
Re: "Sigma SD1 Merrill not good for scanning negatives/slides"

FDecker wrote:

D Cox wrote:

Negatives have a lower contrast (...than slides) and single exposures are fine.

Isn't that the other way round? (note: I added the text in bold to give the complete context after snipping away most of the text).

Negatives have a max. DR of 12 (density 3.6) and slides are around 8 (density 2.4).

Maybe I am wrong....

Slide films are designed to have greater contrast (a steeper characteristic curve) than negatives or larger format positives. This is to counteract ambient light when they are projected.

You may be confusing contrast with density range.

https://www.kodak.com/uploadedfiles/motion/US_plugins_acrobat_en_motion_newsletters_filmEss_06_Characteristics_of_Film.pdf

 D Cox's gear list:D Cox's gear list
Sigma fp
Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow