I’m not usually one for using obsolete films – in fact I’m trying to standardise on a small range of currently-available colour negative and B&W films. The colour choice is pretty fixed at Kodak Ektar and Kodak Portra 400 – at least in medium format. In 35mm, I’m not averse to using Agfa Vista 200, at £1 for 24 exposures, when the results aren’t critical.
For black and white I’m concentrating on Ilford FP4+ for the slow-medium speed range but still haven’t settled on a faster film. I like Tri-X in medium format but find it too grainy for my liking in 35mm. I’ve never used Ilford Hp5 but all the results I’ve seen online look too grainy for me.
Getting a little closer to the title of this post, I recently purchased 8 rolls of Rollei IR400 in 35mm together with one roll of the defunct Efke IR 820c Aura, second-hand for a very reasonable price.
I’ve blogged about Rollei IR400 before; in that post I developed the 35mm version in Rodinal and liked the film but found it a bit grainy. Since then I’ve used the medium format version in a Yashicamat 124G and other developers, which resolves the grain issues.
Having eight rolls of IR400 is enough to make it worthwhile doing some testing to determine a good base ISO and developing time, for my now favourite/only developer, Firstcall’s own brand B&W film developer.
As well as using the film for infrared with a Hoya R72 filter, I also intend doing more tests without a filter, for use as a “normal” faster film. If that goes well, then the Rollei IR400 may take it’s place alongside FP4+ in my small range of chosen films, doubling up for infrared and those occasions when I need a little more speed than FP4+ can provide. We shall see.
So finally getting to the point – my single roll of Efke Aura. I shot the film with a base ISO, allowing for Hoya R72 filter, of ISO3, but also shot additional shots with an extra stop on top of that reading. On the whole the shots with the extra stop were probably the more useable ones, but I didn’t take careful records as I only had one roll and didn’t expect to repeat the experience. The film was shot at two National Trust venues in the North East of England – Washington Old Hall and Gibside.
I couldn’t find a published development time for my chosen developer so followed a very unscientific route:
a) Looked at the Massive Dev Chart filtered for all developers and Efke IR film, then took a mid-range guess of 8 minutes at 20c.
b) I then used the Massive Dev Chart time and temperature convertor to take account of the actual temp of my chemicals (18.5c) and the reduction needed when using constant agitation in a Jobo processor. This gave a time of 7m 54s.
So here are selected results.
So how was the Efke Aura in comparison with Rollei IR400 ? Well of course it is impossible to say after using only one roll. I didn’t see much of the “bloom” that the Efke film is known for, and it probably needs even more exposure to bring out that feature. I certainly liked the results (or the ones that worked well, and the hit rate with IR film is always going to be lower than it is with normal film). But I didn’t like it three times better than Rollei IR400 – and the few rolls of Efke Aura for sale on eBay are going for 3 times the cost of the Rollei IR400 film.