Friday, December 6, 2013

Photo Lab pass

Working in the photo lab at UofAla '75 to '78 had a few perks. Sometimes we'd get passes to the concerts and get up fairly close to the stage for a few shots. These pix are converted from kodachrome slides- yeah... Kodak which is now out of business - to digital and the conversion is not that good of quality. Hey, ... I'm just glad I've got a few pix left. The processing emulsion on the slies has broken down on many slides and the picture is gone. These slides had good color and quality when they were processed, however 36 years later... there are complications. see end .

Joni Mitchell







Elvis... the heavy Elvis. This concert at the Uof Ala / Tuscaloosa was August 30, 1976. This was one of his last performances. Elvis didn't live another year.


The greatful Dead



Jerry Garcia... we ddn't know until we looked close in these pix... with a lupe on the light table... Jerry is missing the end joint/ knuckle on his right/ strumming hand, middle / bird finger.  Also, on his guitar is a sticker/ saying ; " The enemy is listening " .  Was a really good concert.



Elton John; fantastic concert.



From Wiki about the processing : Hey, ... I'm doing the best I can.

Digital scanning and resolution[edit]

A 35mm Kodachrome transparency, like other 35mm transparencies on films of comparable ISO rating, contains an equivalent of approximately 20 megapixels of data in the 24 mm x 36 mm image.[26] Scanning Kodachrome transparencies can be problematic because of the film's tendency to scan with a blue color cast.[20] Some software producers deliver special Kodachrome color profiles with their software to avoid this. An IT8 calibration with a special Kodachrome calibration target is necessary for accurate color reproduction.[27]
Many scanners use an additional infrared channel to detect defects, as the long wave infrared radiation passes through the film but not through dust particles. Dust, scratches, and fingerprints on the slide are typically detected and removed by a scanner's software. Kodachrome interacts with this infrared channel in two ways. The absorption of the cyan dye extends into the near infrared region, making this layer opaque to infrared radiation.[28] Kodachrome also has a pronounced relief image that can affect the infrared channel. These effects can sometimes cause a slight loss of sharpness in the scanned image when Digital ICE or a similar infrared channel dust removal function is used.[29]