So ... why does the fiteeen year old Epson RD1 capture colours so well?

Yesterday afternoon, I took the R-D1x out for a spin, together with the CV Super-Wide-Heliar III 4.5/15. A great combo that gives beautiful colors...




Out to Lunch, on Flickr. Thanh Da, Saigon. January 2019.
 
Lee Rust said:
Aside from the CCD vs CMOS differences, the R-D1 was meant to be a limited-production showpiece for Seiko-Epson technological prowess circa 2004.
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Why did they step into the camera industry to show this prowess? Did Epson make cameras any time before? It seems so odd that a company, which to my knowledge had no history with rangefinders, would decide to produce one. And then they dropped it like old news.
 
What I got from reading the R-D1 threads over the years is that the R-D1(s/x) was nothing more than a Proof of Concept project for Epson.
 
Ted Striker said:
Why did they step into the camera industry to show this prowess? Did Epson make cameras any time before? It seems so odd that a company, which to my knowledge had no history with rangefinders, would decide to produce one. And then they dropped it like old news.
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Dropped it? They built it through three generations and over 10 years. The 6K sensor was outdated at launch but Epson still used it for 10 years. They were a cult item in Japan, and a somewhat religious experience even in the rest of the world.

Why a rangefinder? Because at launch Leica weren't making a digital. So Epson benefit from the Leica Tax.

And they did (and do) make devices that take digital photos. What do you think a scanner does?

As for the sensor doing all the work, I also have a Pentax K100D and a Pentax *ist D. They have the same sensor. Even the raw from the Epson is better, though the later Pentax can do decent jpgs unlike the earlier. The Epson is earlier than the K100D. The software is great. They proved their point.
 
Lee Rust said:
...
The only fault I ever found with the R-D1 color was a slight purple tinge in some black fabrics which was completely cured by the addition of external IR/UV filters.
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This certainly relevant to observation that red hue rendering is pleasing in many situations.

The effect of UV filters on back fabric reddening is interesting and puzzling.

A typical CCD frequency response is 300-1000 nm.

I am not suggesting the RD-1 sensor is related to the FUJIFILM IS Pro's. However, the 2007 FUJIFILM IS Pro DSLR's CCD has a frequency response of 380 to 1000 nm because the cover-glass filter layer doesn't attenuate IR or UV. So, it could be the RD-1 CCD cover-glass filter layer passes significant UV light as well as IR.
 
My experiences with the RD1, I've had four, is that they seem to under expose a bit and that would add to the color saturation.
 
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