Comparison of my Eos-1Ds vs iso 100 film

Test done: 2002.12.31

This was a simple quick test before taking the camera away for a few days of shooting

I looked through various slide pages and located a set of test shots taken while was checking out my 300mm F2.8 IS lens. Locating a suitable image that was taken of a small cemetery about a 100M from our driveway, and could be duplicated today.

I looked up the recorded shooting data for the film shot using the Eos-1V 's shooting data memory program (eos-link) so I could try to match the same shooting conditions. The original shots on film where taken 2001.03.19 on iso 100 film, shot at 125, image taken at 1/500 sec and F7.1 The film was Kodak E100VS, which is my primary film.

The film image was scanned twice using my Nikon ED4000 scanner, The first time it was run at 4000 dpi, 16x super fine rescan mode (takes about 10 min. per scan) but no extra processing done.

The second time, I used same setting, but added digital ICE at normal for scratch removal, and set the GEM to 2 for reduction of film grain. The final images were loaded into Photoshop 7 and rescaled to match the 1Ds image size (resampled down to same final image size)

I mounted the 1Ds body on the same 300 mm lens, set the IS to active and setup at the same spot and took a few shots. I was under much lower light levels than before given the cloudy day, so I had to reduce shutter speed to about 1/60 second, at f7.1 with IS on, and the body set to ISO of 125 and white balance on auto

The test image was recorded in RAW format, and converted to a 64 MB tiff file (16 bit mode) and also brought into photoshop

Straight image from scanner	digital image from 1Ds	Image using Nikon's ICE and GEM processing

The above images were zoomed up on the Photoshop screen until the effective image for the full frame would be 44x66 inches, that about as big as I can get printed. I used Corel's screen capture to grab the view and form a secondary image.

The image shows above should be about 6" (150mm) in height for the target 44 times magnification, if the image on your screen is of a different height, take that into consideration.

As I see it. The digital image shows about same if not slightly more detail, but without the grain noise. If you use the GEM processing, some slight detail is lost.

At this point, my quick results match various other tests I have seen, I am happy so far.

That is about for now, got to get ready for New Years.