I got a GR III in March when the first preorders started shipping. It's my first in the series, I liked it from the beginning and over time I've started to want to know more about the series. So, short of the expensive film GR cameras, I got a GR Digital. That's the first digital GR, announced in 2004 and released in 2005. I initially thought it'd be a novelty, similar to how a few months ago I took a few shots with my Canon Pro 1 also from 2005. But no, the GRD is a camera I now use "for real," as much as that can be said about a hobbyist. So here's a comparison in no particular order.
Battery - similar, with a new battery the GRD has at least as good battery life but of course the original one is now degraded.
Screen - in its day, the GRD back screen was described as fast, bright and sharp. It is bright. By modern standards it is not sharp at all and it has poor viewing angles, to the point where I don't really review images for more than basic framing
Image quality - there's nothing to compare here if you pixel peep. But for web resolution and social media, you'd be hard pressed to find major differences or flaws at iso 64, 100 and maybe 200, and from there to 1600 (the max) GRD jpegs look gritty in bw in a good way. The GRD has a 4:3 aspect ratio sensor.
Tech - the GRD is plain obsolete in terms of SD card and USB cable. It takes at most 1gb cards, not the more common 2gb, and the USB connector is so old that well... I only found a cable digging into stuff I knew I had to throw away but somehow didn't
That being said, once you find the right stuff it works just fine connected to a modern computer. Moreso, it outputs raw DNG so it's really that compatible (though I prefer sooc JPEG in bw for most of the time).
Firmware - The ADJ dial works the same way. It's surprising how many little software tweaks have been made over the years to improve usability. We take them now for granted, but for example if you have the back lcd off (I do for using the external viewfinder), the GRD won't turn briefly turn the screen on to show changes in aperture (but it will for exposure compensation); another example, the GRD won't show ISO in auto ISO, let alone allow for some customization of how auto ISO works, so I just set a value manually as needed and do not use auto. I like the abbreviated menu options so that they fit on the low resolution screen ("SHTG STGS WARNG." anyone?)
Build quality - this is where time hasn't changed much. The lines on the newer camera are more streamlined especially around the lcd, but otherwise the GRD feels as premium.
Speed - snap focus and metering are equally fast. GRD SD write times are the best chimping deterrent ever. Start-up time, autofocus and continuous shooting are as expected much slower, but not so much to be an issue, I simply shoot one picture at a time instead of bursts, rarely use AF anyway, and leave the camera on with a longer shut down timer.
Snap focus - The GRD snap distance is fixed at 2.5m. At f2.8, this means everything from just over a meter to "far away, not sure it's really infinity" are in focus. For me, there's almost no reason to stop down except in bright conditions, and this negates many disadvantages it has in terms of high iso performance and autofocus, basically I almost never have to do anything except snap focus.
Fun - About the same. There's get a nostalgic feeling combined with surprise that the thing actually works for more than just test shots with the GRD, then a bit of spaceship awe with the GR III. So overall they're both fun to use in different ways.
Some side-by-side photos I've shared before in another thread
Last edited by aaacb; 11-17-2019 at 04:31 PM.