Ricoh GR IV Monochrome studio scene: looking sharp
As we're working on reviewing the Ricoh GR IV Monochrome, we've put it in front of our studio test scene to see how it performs. And, while it's one thing to know intellectually that the lack of a color filter array improves certain aspects of image quality, it's impressive to see it actually in action.
Our test scene is designed to simulate a variety of textures, colors, and detail types you'll encounter in the real world. It also has two illumination modes, full even light and low directional light, to see the effect of different lighting conditions.
Image ComparisonThis widget is not optimized for RSS feed readers. Click here to open it in a new browser window / tab.Like its color sibling, the GR IV Monochrome's 26MP BSI CMOS captures a very good level of detail in its Raws. However, thanks to the lack of demosaicing, the black and white images look noticably sharper, even compared to the files from the higher-resolution Fujifilm X100VI.
The Monochrome doesn't have a noise advantage if you compare its base ISO performance to that of the color version, but its base ISO is 2/3EV higher, so it's delivering a comparable result despite being exposed to less light. Once you bump up to ISO 200, and give the two versions the same exposure though, the difference starts to become apparent: the GR IV Monochrome has less noise than its APS-C counterparts, and comes much closer to full-frame cameras.
This continues to be the case through mid to high ISOs, and the GR IV Monochrome continues to produce passable images well into ranges that we wouldn't bother with on a color camera; in addition to not losing light to any color filters, it probably helps that luma noise won't be as distracting as chroma noise to most viewers. Ricoh lets you go all the way up to a ludicrous ISO 409,600, though by that point the image has, unsurprisingly, truly fallen apart.
As we saw with the GR IV, Ricoh's JPEG engine doesn't quite manage to include all the detail that the camera's Raws do, though the results are still very nice to look at. At higher ISOs, though, the effects of noise reduction on the Monochrome's images are less noticeable; the JPEGs show more detail than their color counterparts, even if you compare images that received a stop less light".
This is typically where we'd discuss the JPEG colors but, of course, the GR IV Monochrome doesn't capture any. There is a cost for the extra detail and improved noise, after all.
Exposure Latitude | ISO Invariance
Like the standard GR IV, the Monochrome offers excellent dynamic range performance with relatively low read noise, giving you room to boost shadows, or to shoot at ISO 160 for maximum dynamic range and brighten to your preferred lightness in post without introducing too much additional noise.
With that said, it's worth remembering that once your highlights are clipped on a monochrome camera, they're gone. With a color camera, you have the chance of pulling back at least some detail from one of the three color channels, but that's not an option with the Monochrome.
If you want to go into more detail on the 28mm equiv. F2.8 lens that this camera shares with the original GR IV, you can check out our review of that camera. The short version, though, is that it's impressively sharp edge-to-edge given its size, even wide open, though it has a fair amount of vignetting throughout its aperture range.
Our studio scene didn't reveal anything surprising about the GR IV Monochrome, but that's not a bad thing. It turns in an impressive performance, producing sharper images with less noise than the standard GR IV, at the same settings. Given that the GR IV was already a benchmark in image quality for a camera of its size, we can't complain about that.
