In the early 1990s, Southern Pacific’s Donner Pass was the domain of EMD Tunnel Motors—distinctive six-motor locomotives specifically configured for the route to better accommodate the difficulties operating in tunnels and snow-sheds at high altitudes.
So finding matched sets of modern General Electric four-motor diesels (such as those pictured here) leading freights proved to be highly unusual in the greater scheme of daily operations.
I made this photo in June 1992 at Yuba Pass. Although it has appeared in several places, including Pacific Rail News, I thought it was timely to present it on Tracking the Light. Friday, May 10, 2019 will be the 150th anniversary of the completion of America’s ‘First Transcontinental Railroad’ of which the original Donner Pass crossing was a key component.
This image was exposed on Kodachrome 25 using a Nikon F3T with 35mm PC lens. To compensate for the inky shadows, I made a multi-pass scan using a Nikon Super Coolscan5000 and then imported the hi-res TIF file into Lightroom for adjustment. What you see here are both the unaltered scan and the adjusted versions, both scaled as Jpgs for internet presentation.
VueScan offers me a high degree of control, but I’ve found requires a bit of practice and experimentation to obtain the best scans.
I typically scan Kodachrome 25 slides at 4000 dpi (dots per inch) and then output as a Tif file to obtain the greatest amount of data. For this slide I opted to make a multiple pass scan to retain a higher degree of shadow detail. (VueScan offers the multiple pass option under its ‘Input’ pull down menu).
To make the most of the scan for internet presentation, I imported the Tif file into Lightroom and lightened the shadows and balanced the highlights, before outputting as a scaled Jpg. (The original scan remains unchanged during this process).
Kodachrome slides recorded tremendous amounts of information and the original Coolscan Tif is far too large to present here.