Tuesday, April 17, 2012

A cheap and available fogging developer

With my reversal developing, it was always a pain-vs-gain decision for flashing or fogging developers.

The pain comes through post 911 crap with regards to obtaining simple photography chemicals without selling your soul. That said, I finally found a source of Stannous Chloride that was willing to ship to me. Considering I will only need .04 of a gram per dose, that 250g bottle is a lifetime supply. Oh well. I just have to wait until it gets here.

But this post is not about Stannous Chloride.

As usual, to find out anything google becomes my friend. While researching recipes, I came across several references to "Iron Out" as a fogging developer. WTF? Yep, $6 later at my local Canadian Tire store.. we have the stuff.

I did a quick test. I loaded up a foot of unexposed film (bulk loading has its uses) and put it in a tank. Put 1 tsp (loosely suggested amount elsewhere on the net and accurately measured) of this powder in 200ml of water and pour it in. I come back 5 mins later and I have one magic strip of blackness. Awesome!

No more abuse of me dancing with a film strip in front of a light bulb. ;)

Why this stuff works is because it contains a chemical called sodium hydrosulfite aka sodium dithionite. "Iron Out" comes in a varity of versions which do not have the same ingredients. You want the powder and it will state the ingredient on the "contains..." part of the label.

NOTE:

It would appear that it is a one shot. I used the same batch for a second roll, and my film came out blank.