Kodachrome CD ROM's?

Why dont you ask Dwayne?

Dwaynes

The scans are 3004x1936 pixels. If I recall correctly, they are full frame. Quality is so-so, ok for the web. I don't shoot much Kodachrome, so my opinion is based on a very small sample.

You can request Higher rez for a few bucks more but the colors were not true in the one I got.

I was hoping to make an A3 sized print. 3004x1936 sounds reasonable - better than nothing.

Thank you, Ian

You must have to ask them for high res, since the CDs I received (after filling out their standard form) had 2MP jpegs. In my case, there was a significant blue cast to the scans.

My understanding is that the blue cast is due to the cyan dye. A profiled scanner is supposed to give very good scans, and I am waiting for my IT8 Kodachrome target from LaserSoft so that I can generate an icc profile using SilverFast. If you only want a few prints, may I suggest that you contact a good lab that has an icc profile for Kodachrome.

The cyan dye in Kodachrome gets blamed for all sorts of problems: some real and some imagined. The K-14 cyan dye is different from the cyan dyes in most other films. It peaks at a longer wavelength and extends into the infrared region. Here are a few of the effects I know about:

• It affected the design of EDupe film which has a very long red spectral sensitivity peak. The peak sensitivity is positioned at one of the two points where Ektachrome and Kodachrome cyan dyes will produce about the same contrast. It is necessary to use a different filterpack with Kodachrome to get the color balance right. For those labs who were too lazy to switch filtration depending on the original, there was an IR304 dichroic filter that allowed both Ektachrome and Kodachrome to be printed with the same filter pack. It also resulted in high cyan contrast in the dupes of Kodachrome. This was the earliest instance of comments that Kodachrome is hard to reproduce.
• The K-14 cyan dye affects the IR channel in ICE equipped scanners. (The relief image does too.) While there is a real effect, it is barely noticable in my Minolta scanner. I routinely use ICE for my Kodachrome scans.
• The K-14 cyan dye tends to crystalize producing increased graininess. The slope of grain vs. speed is far steeper for the red record of K-14 than anything else. This is why K-200 is so grainy compared to E-200. This is also one of the reasons K-400 was never introduced. (Ron Mowrey and colleagues had a partial solution, but I'll let him describe it.)
• The K-14 cyan dye requires different scanner settings from E-6 films. This is another reason why many claim that "Kodachrome doesn't scan well."

If you want to see the results of many different scans of many different Kodachrome images, go to http://ronald.andrews.googlepages.com/kodachrome

I think that Dwayne's scan are pretty good for $4.95. If you edit them just a little bit you can do some good things with them. I find them nice if I need to make a print of something in a hurry.

Ron,
What do you mean by "The K-14 cyan dye requires different scanner settings from E-6 films"? Assuming one as an icc profile for K-14, what settings other than contrast, brightness, etc., does one change?