[pure-silver] Pre-soaking film
- From: harry kalish <hksvk@xxxxxxxxxxx>
- To: <pure-silver@xxxxxxxxxxxxx>
- Date: Thu, 29 Apr 2010 18:05:46 -0400
Quite awhile ago, Ilford stopped recommending a pre-soak because they
started building a wetting agent into their film. But it gave me confidence
to continue the pre-soak, with the ritualistic tapping of the daylight film
tanks on a firm surface to dislodge air bubbles from the surface of the
film.
Harry
On 4/29/10 4:57 AM, "Claudio Bonavolta" <claudio@xxxxxxxxxxxx> wrote:
> Hi Snoopy,
>
> I don't presoak but don't think it harms, provided your development time takes
> into account the presoaking.
>
> I tried it once with 8x10" sheet film and a Jobo paper drum not meant for film
> development that was giving me severe development streaks. By presoaking, the
> streaks were significantly reduced although not completely eliminated.
>
> For E-6 and a Jobo processor, I don't presoak either but pre-warm the drum
> with the film inside for 5', woks for me ...
> In fact, I'm just following the manufacturer's notice (Kodak 6-baths 5-liter
> kit).
>
> Regarding dust, my lab is far from being dust-free and my 3 cats love to sleep
> on the desk aside the enlargers while I'm working but I must be lucky, I don't
> have many dust issues.
> I'm trying to keep the level of humidity around 50% wich reduces the static
> electricity problems. So dust doesn't make me that schizofrenic ...
>
> Claudio Bonavolta
> http://www.bonavolta.ch
>
>
> ----- Message d'origine -----
> De: Snoopy <snoopy@xxxxxxxxxxxxxxx>
> Date: Thu, 29 Apr 2010 09:48:02 +0200
> Sujet: [pure-silver] Re: different films and dust?
> À: pure-silver@xxxxxxxxxxxxx Dear All,
>
> I was once told ages ago (or did I read it on this list?) that it's a
> BAD idea to pre-soak b/w film ?
>
> Apparently it makes the emulsion swell up and hence it takes LONGER for
> the chemistry to get from the outside of the emulsion fully into the layer ?
>
> Kind of like the worst of both worlds as if you are not careful with
> draining the rinse water then your developer can get diluted and you get
> varyng results.
>
> The only films I do pre-rinse are colour films, esp. E-6 to get rid of
> the gunky yellow layer - I have the feeling that it ruins the first
> developer quicker, when I leave out the pre-soak - also the pre-rinse
> for colour is kind of necessary to get all of the gear up to the same
> temperature.
>
> As for cleanliness: yes this is important. I share the house with at
> least two permanently resident humans (no jest: people are VERY dusty
> ! and dirty, their skin flakes off, their clothes produce a lot of dust
> and bring in all kinds of dirt from outside!) as well as a cat and three
> dogs of the hairy variety.
>
> However I find I have a LOT less problems with dust on my prints and
> films than other guys in the Photo Club. Just make sure you aleway keep
> the doors closed etc. I don't usually have to "spot" my prints or
> similar. All spick-and-span. It's all about being an A-R German, I guess
> :-)
>
> I am very happy that I don't have to spend loads of cash on Photoshop
> plugins like DeSpeckle, heckle, heckle, heckle :-)
>
> Love,
> Snoopy
>
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