Fomopan 100/R09 disaster

[barnacle]

If there's absolutely nothing on film sheets I'de first check the lens shutter.

Two lenses, two shutters. Both of which opened for composition; seems unlikely.

Neil

[martinf5]

you're absolutely right, that would be really strange

[sepiareverb]

Possible the concentrate never went in the developer tray, so your "developer" was just water?

[barnacle]

I'm kinda wondering that myself, but given two jugs, one of which definitely had 20g of R09 in a litre of water, and the other had a litre of water, well, even if they went in in the wrong order there ought to be *some * sort of trace.

I should get a chance to do further tests tonight.

Neil

[Leigh]

...one of which definitely had 20g of R09...

Grams is a measurement unit used with solids, not liquids.

Were you dissolving solids in a jug of water?

- Leigh

[barnacle]

Heh. In the absence of small graduated measures, I use grams for fluids. I appreciate the density is unlikely to be exactly 1.0, but it is at least consistent.

Anyway: the answer is... the developer.

Two sheets of film; one xray that I happened to have in a dark slide, and one of the suspect fomopan. Both exposed close to house lights, cut in half. One half of each developed in the suspect R09, one half in R09 from an opened-tonight bottle.



On the left, the new; on the right, the old. The prosecution rests, m'lud.

Neil

(interestingly, there was in this case the red tint I expected when the *old* dev was drained, much less from the *new*. The green was less obvious, but with only half a sheet instead of six in the tank, that's not a surprise.)

[Leigh]

Very good, Neil.

At least we can blame the old stuff, as usual.

But that "old stuff" was not Rodinal, it was R09.

- Leigh

[koraks]

Good, we can all sleep again tonight
Or...not those of us that still have half-full bottles of rodinal sitting around; we may never rest easy anymore!

[tonyowen]

, the first wash was bright green, but so was the used developer

Just to clarify one thing - my wash from Fomopam 100 is always bright green.

regards
Tony

[Leigh]

those of us that still have half-full bottles of rodinal sitting around; we may never rest easy anymore!

The "old stuff" that was bad was NOT Rodinal, it was R09.

- Leigh