For all of the flexibility that ISO 400 gives you, I generally prefer results from 100 or 200. Of course medium format smooths out the 400 quite a bit compared to 35mm, and I have to say, after getting a roll of this when buying a mystery B&W 120 bundle (the other two films being more pedestrian, but solid favourites) I could be converted…

The grain is noticeable, but in an “isn’t proper film photography full of character” kind of way, and on a dull-ish day still let me shoot at 1/125th and f/11 (give or take) with my Yashica 635.

The contrast surprised me (in a good way), and seemed particularly well suited to architectural shots.

Developed in ID-11 1+1 for 14 minutes (10s agitation every minute after the first full minute).

When I first shot and developed this film I wasn't too impressed. However having reviewed my results I changed my mind, I had picked the wrong subject. Where I feel this film works is shoot sad abandoned old industrial buildings on a dull day. The film gives the images a melancholic feel which suits the subject matter well. So I will buy more and chose my subjects wisely next time!

I didn't realise how soft and dreamy the images would come out but I love it! It works well in various lighting and I will definitely shoot some again.

This film took some high-contrast pictures with my Holga 120N with some great grain, particularly in those parts of the picture that are sky.

I doubt thats what RPX stands for, but I accidentally shot some images about 5 stops underexposed and still got usable shots developed at box speed. Very useful for idiots like me :)

Definitely enjoyed shooting with this, it is very forgiving I think as you can see from the sample photos I had some issues with light leaks!

I took a couple of rolls of Rollei RPX400 out with me to test a couple of 6x6 cameras. The films were lab processed in 510 Pyro. RPX400 is impressive, displaying a great tonal range, it holds shadow and highlight detail very well, coupled with smooth grain structure this film is a winner. This is definitely a film I will be using again.

Shot in a Braun Paxina 29. For what it's worth, i feel it worked very well as an all-rounder, and any exposure issues are more due to me than the emulsion. I'd recommend it.

I shot this on my Yashica Mat in some challenging light and it gave me beautifully balanced images. The grain isn't intrusive and the detail is great. Developing is easy, I used HC110. I would happily use this as my daily film as it is nice and reliable and reasonably cheap.

I shot a roll of RPX400 on an extremely misty morning. It is supposedly Kentmere 400, which is not available in 120 format. I like the grain in the Kentmere films so thought it worth trying it in the weather conditions to see if it gave a similar feel.

I wasn't disappointed. It has a nice grain to it and a nice tonality. Very flexible to work with when post processing, I could really get some nice gradations between the tones. I managed to grab some nice atmospheric shots with it. It will be interesting to see how it works in some more contrasty lighting conditions.

My usual go to film is good old reliable [****] but I just wanted a bit of a change. I had read good things about the RPX 400 and thought I’d give it a go. I’m so pleased to say that none of the reviews where wrong, this film is beautiful to use and does give great results. This is my second roll and I exposed this one for shadow detail in zone 3 and reduced the 14 min developing time down to 10.5 min in [****] at 1 to 1 dilution. I will be using this film again very soon.

Worked well in my Holga in very bright conditions on Dartmoor and in more subdued light under the trees. Need to get some more for my latest purchase a Lubitel 166B - it's addictive this film lark!!

Experimented with this film on a bright sunny day so to cut down the light I used a Yellow filter to enhance details in the stonework. The film was processed in Rollei RPDX developer for the suggested 10 min . I loved the range of tones reproduced the stonework seemed to glow. It is definitely a film I will return to

I exposed this film on a Rolleiflex T TLR with ASA at 200 and developed in Ilfotec HC at 1:31 dilution for 6 minutes. The negatives were photographed with a macro lens and imported to Lightroom for post processing. My experience is that this technique produces very flat digital files but with all the information retained to produce a fine tonal range with which to work.
All of the shots on this roll were in woodland in low light but with occasional pools of dappled sunlight.
The film coped well with the occasional high contrast shots, and gave beautiful rich shadow tones with good detail retained. Examining the sky area at magnification in the attached image revealed very fine grain.
The film dries flat.
Currently this film is slightly more expensive than HP5+ and a lot cheaper than Tri-X, so well worth exploring. This is my first roll used but I will be ordering more.