Digitizing Negatives

Started 3 months ago | Discussions thread
Bernard Waxman Senior Member • Posts: 1,664
Re: Digitizing Negatives

Most photo labs use roller transport film processors, which almost always leave some scratches unless the lab is meticulous about keeping the rollers clean.  That is the big advantage of dip and dunk processors that do not use any rollers.  On the other hand, it takes longer to hang the film when processing using dip and dunk.  Oh,  sheet film is not processed using roller transport.

On color film, scratches that are made during development on the emulsion side often have a color cast.  Scratches on the base side of the film are easier to get rid of by smearing a bit of nose grease on them or by using solutions that were made for that purpose.  Wet scanning should also take care of that.

As far as diffusion versus condenser light sources, diffusion was most often used in enlargers for printing color negatives while condenser enlargers are/were more often used for black and white printing.  As far as I know, all automatic printing is done using diffusion light sources.

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