Luke Healey has posted another Diafine EI test (see his previous test of Tri-X), this time of Fomapan 100. Check it out in his photostream at Flickr (larger version available there).
If you’re not familiar with Diafine developer, it’s got several magical properties: it’s a split-bath compensating developer, so it’s difficult to get blocked shadows or blown highlights, one batch can last for well over a year, its temperature range is wide enough (21–30°C / 70–85°F) that you don’t need a thermometer, they recommend you not use a chemical stop bath (just water), film needs to spend at least 3 minutes in each bath (but can spend more), and since the development time is the same for every film, you can develop different emulsions in the same batch at one time. If you’re gentle with the agitation, it’s quite fine-grained. In short: AWESOME.
For more info, see the Diafine group on Flickr, Grant Heffernan, or Sherman Dunnam Photography.
You can buy it from Calumet Photographic, B&H, and Amazon.com in the US, among other places. For the UK, hit Retro Photographic.