New Challenge

Now for 7 days of unseen vertical XPan shots… not sure if this is going to work. Vertical XPan can end up looking a little weird, but that doesn’t appear to have stopped me occassionally giving it a whirl!

Hamburg Hafen Trip

You can tell it’s taken in Hamburg by the honking great big water stain up at the top. Oops.

The Hardest Cuts

Some of you might enjoy having a scroll through this…

[click for full size]

It’s a film exposed once in the woods, offset, and shot again in town. The procession is Hare Krishna, with their fantastic collapsible float (can be wound up and down to get under trees / bridges).

Tri-X in Rodinal

The death of Presto has moved my good friend, and mentor, Thomas, onto Tri-X. I was earnestly trying to convince him that if he wanted interesting grain, he should have a go at developing it in Rodinal. It’s something of a struggle to explain the differences, and no doubt, almost entirely subjective.

The easiest thing is an example, so here is an extreme case:

(click to see it a little larger)

Tri-X in Rodinal @ 20ºC for 13mins. Gentle agitation for the first 30s, and for 5s every minute. Taken using a 6×9 back on a 4×5 Pacemaker Speed Graphic, and an 8″ Dallmeyer-Pentac f/2.9 lens.

Rodinal versus Summer Pt. II

First of all, go and find the piece of paper that came in the Rodinal box. Now find ‘Diagram 2’. There are two graphs, one for 1+25, and one for 1+50. Being a little on the ケチ side, we’ll use 1+50.

Two things to initially note, i) the vertical scale (temperature) starts at 18ºC, ii) there are two roughly parallel lines, for 100 and 400 speed film.

Focusing on the APX 400 line, we see that it indicates that an increase in temperature of 3ºC reduces the development time by 4 minutes. If we assume that Tri-X will have similar behaviour to APX 400, it will have a (roughly) similar, and therefore parallel line on this graph. If you now draw a line, parallel to the APX 400 line, that passes through your known time and temperature (13min @ 20ºC, in my case) you can get a starting point time for higher temperatures.

Unfortunately the Agfa graph is skewed towards high values by the long development time for APX 400, but simply judging by eye, it’s easy to see that 13min @ 20ºC corresponds to 9/10min @ 23ºC. I’ve tried this with Tri-X and got results that i can’t distinguish from my usual efforts… as i’ve read that higher temperatures can yield more grain, i limited agitation to an initial 30s of gentle inversions, and two gentle inversions every minute.

Personally i’m not going to push this any further than 24ºC, as that’s the limit of the Agfa graphs. This doesn’t seem like it will be an issue… unless it stays really warm for several weeks.

Ice cubes? You’re all nuts – grow a pair and read a graph!

Summer Acros

Turned on the tap, stuck my fingers in the water… that’s not 20ºC closer to 25ºC… hmm… let the tap run for a while… getting cooler… 23ºC. <brief moment of confusion> am i suppose wait until winter before developing again? This can’t be right!

Wanted to develop two rolls of Acros today, but the tap water is just too warm for what i usually do, and my Super Prodol was even warmer than the tap water. Seeing as the development time for Acros in Super Prodol is 4m15s @ 20ºC, it’s going to be close to impossible to control at 25ºC. Rodinal has a much longer dev time (~13m @ 20ºC), but i’m going to be guessing at the time.

The only solution (haha <cough>) is a splash of Rodinal (10ml) in a litre of tap water, give it a brief shake, and then let it sit for an hour, aka ‘stand development’. Sean has tried it with good results, and Jim used to swear by it…

Guess what? It works like a charm.

My cursory look at the negatives suggests that they are as well developed as my usual efforts, and the details in the shadows might be a little pulled up. Result!