Someone pointed out to me that D-Range Priority Auto behaves differently on his Fujifilm X-T5 than he thought it would. I don’t use D-Range Priority Auto all that often, and it’s been awhile since I’ve done any sort of serious testing with it, so I took the opportunity to see what’s going on. I was quite surprised by what I found.
D-Range Priority (abbreviated DR-P) was a feature first found on old Fujifilm EXR models (this was before X-Trans) that utilized pixel-binning, and it worked much different than the current iteration of it. The modern version of DR-P was introduced in 2018 with the X-H1 and X-T3, and is modeled after a feature called Hypertone found on Fujifilm’s Frontier scanners. DR-P is used in lieu of the Dynamic Range (DR) settings and the Tone Curve (Highlight and Shadow).
Like the DR settings, DR-P is ISO dependent. DR-P Weak requires the same minimum ISO as DR200, and DR-P Strong requires the same minimum ISO as DR400. DR-P Auto should work the same as DR-Auto, and seemingly it does, but upon closer review it is significantly divergent. At least it is now. The way it works has evolved over time, largely unnoticed.
Someone reported to me awhile back that they couldn’t get their X-T5 to choose DR-P Strong with DR-P Auto selected. With my X-Trans IV models, in DR-P Auto, the camera will almost always choose DR-P Weak, and only DR-P Strong in extreme high-contrast situations, with both bright highlights and deep shadows. The camera will do it, but not very often. I assumed that this person probably just hadn’t encountered the right situation where the camera would choose DR-P Strong. I can see now that my assumption was wrong.
Let’s backtrack a bit. D-Range Priority works a certain way on the X-H1 and X-T3/X-T30 (at least when the X-T30 was released and I tested DR-P on it back then …it might work differently today after firmware updates, I’m not certain). On those cameras, DR-P Auto will choose DR-P Weak most of the time, and DR-P Strong only in extreme situations. DR-P Weak is the same as DR200 with both Highlight and Shadow set to -1. In the set of three very identical images below, captured with a Fujifilm X-H1 this morning, one is DR-P Auto (which chose DR-P Weak), one is in-camera reprocessed as DR-P Weak, and one is in-camera reprocessed as DR200 with Highlight and Shadow both set to -1. They look exactly alike.
Now let’s fast forward a little. DR-P Auto works a little different on my Fujifilm X100V and X-E4, but not exactly as I remember it working, or as I expected it to. I’m not certain if the way it works changed after some firmware update, or if my memory of it is incorrect (it could go either way). Let’s take a look at a photograph that I captured today on my X-E4 using DR-P Auto, which chose DR-P Strong. I then reprocessed the image in-camera.





On the X-H1, DR-P Auto is more straightforward than on the X-E4; on the X-E4, it did not behave as I expected it to. While I could get it to choose DR-P Strong, it didn’t actually create a DR-P Strong image, or even a DR-P Weak image; instead, it created an image identical to DR400 with Highlight and Shadow set to -2 (“DR-P Medium”?). DR-P Weak is the same as DR200 with Highlight and Shadow set to -2; however, on the X-H1, DR-P Weak is identical to DR200 with Highlight and Shadow set to -1. Clear as mud?
Now let’s look at the newer cameras. On X-Trans V, as well as the latest GFX, it works even differently. Check out this set of photographs:



As you can see, the camera is not using DR-P Weak when in DR-P Auto. Like the X-H1, it is using DR200 with Highlight and Shadow set to -1; however, unlike the X-H1, DR-P Weak is not the same as DR200 with Highlight and Shadow set to -1. On the newer models, DR-P Auto is actually “DR-P Extra Weak” (if such a setting existed, which incidentally is the same as DR-P Weak on the X-H1). DR-P Weak is actually more like DR200 with Highlight set to -2 and Shadow set to -3 (if such a setting existed—in other words, it can’t really be replicated). Also, no matter how hard I tried, I could not get my X-T5 or GFX100S II cameras to choose DR-P Strong when in DR-P Auto; only DR-P Weak (except that the picture is “DR-P Extra Weak” instead of DR-P Weak).


So what is the practical application of this? Since we know on the newer models—X-Trans V and the latest GFX—that the picture you get using DR-P Auto is the same as DR200 with Highlight and Shadow set to -1, you can replace any Film Simulation Recipe that calls for those settings (such as PRO Negative 160C) with DR-P Auto. There isn’t necessarily a practical advantage to doing that, except if you accidentally overexpose the frame, you can recover it by reprocessing the file in-camera with DR-P Weak. Below is an example of that:


I’m not really sure how to conclude this other than to say that D-Range Priority Auto works differently depending on what generation of camera you have. DR-P Weak and DR-P Strong are also a little divergent. I reached out to Anders Lindborg to ask his opinion and see if he had any insights on DR-P Auto, since he’s researched this topic pretty extensively. “The answer is actually in the manual,” he told me. “It says, ‘When an option other than Off is selected, Highlight Tone, Shadow Tone, and Dynamic Range will be adjusted automatically.’” On the newest models, that means Highlight and Shadow both set to -1 and Dynamic Range set to DR200 …and nothing else, unless you reprocess as DR-P Weak. Unfortunately, if you want to shoot with DR-P Weak or DR-P Strong straight-out-of-camera, then don’t use DR-P Auto. I suppose you could look at this way: DR-P Auto is actually DR-P Weak, DR-P Weak is actually DR-P Medium, and DR-P Strong is still DR-P Strong. I hope this somehow clears things up for those confused by it.
Below are a few pictures I created in preparation for this article, using my Fujifilm GFX100S II with the PRO Negative 160C Recipe (except for DR-P Auto in lieu of the DR and Tone Curve settings).


