How remove drying marks?

philipus said:

I like this creative solution, thanks for posting the picture, RP.

By film dryer, do you mean one of those large cabinets or?

Btw, we miss you over at the LUF I like film thread

br
Philip

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Thanks Philip! I haven't posted there because (and I hate to confess this) I haven't shot my M6 since getting my Nikon FM2 a few weeks ago.

I use either a homemade dryer which consists of a hepa filter taped to the end of a piece of 4" diameter PVC (15" long or so) with a vent duct fan taped to the end. That sucks the air from the end and blows it past the reel that's inserted into the PVC pipe and it will dry a roll in less than 1 hour with no dust or whatever.

I lucked out to finding two commercial dryers (small ones) called Kleen-Dri by Honey well. They work on the exact same principle and have desiccant canisters in them also.

Here is a picture, you can pick them up on ebay for anywhere from $15.00 to $75.00 depending on your luck.


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That's great. I'd never thought about drying the film while still on the reel.

Any problems with film flatness?

John51 said:

That's great. I'd never thought about drying the film while still on the reel.

Any problems with film flatness?

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Not for me, the film is curled in the long direction but not cupped.

I use a Pakon scanner; feed the roll in one end and it comes out the other end.

Your pix with the FM2 are most welcome too. These days we post photos regardless of camera used as long as it's film

That is a very cool setup indeed. It sounds like an effective way to dry films. I'll also keep my eyes open for one of those Honeywell dryers. I didn't know about them actually.

rpavich said:

Thanks Philip! I haven't posted there because (and I hate to confess this) I haven't shot my M6 since getting my Nikon FM2 a few weeks ago.

I use either a homemade dryer which consists of a hepa filter taped to the end of a piece of 4" diameter PVC (15" long or so) with a vent duct fan taped to the end. That sucks the air from the end and blows it past the reel that's inserted into the PVC pipe and it will dry a roll in less than 1 hour with no dust or whatever.

I lucked out to finding two commercial dryers (small ones) called Kleen-Dri by Honey well. They work on the exact same principle and have desiccant canisters in them also.

Here is a picture, you can pick them up on ebay for anywhere from $15.00 to $75.00 depending on your luck.


Dead Link Removed

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philipus said:

Your pix with the FM2 are most welcome too. These days we post photos regardless of camera used as long as it's film

That is a very cool setup indeed. It sounds like an effective way to dry films. I'll also keep my eyes open for one of those Honeywell dryers. I didn't know about them actually.

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Oh that's great! I'll certainly be back then.
PS: Don't start a bidding frenzy on those dryers!

That idea of the salad spinner is just genius, I'm going to do that! One thing that also works for me to hang up the film to dry and then pull the bottom to one side so that it hangs diagonally but with one edge pointing down. That way, any water that runs down the film will run to the edge, so if it evaporates there and leaves a drying mark it doesn't matter. I also do a final rinse in deionised water - I use the stuff for topping up car batteries or steam irons.

xtolsniffer said:

That idea of the salad spinner is just genius, ....

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I agree....I "borrowed" it from someone else so I can't take credit. (the same with the film dryer)

philipus said:

Thank you very much for the creative (and quick) suggestions.
I'm curios about the alcohol and kimwipes so I'll get that. Even with good(ish) kitchen towel (the "Plenty" brand here in NL) I did notice some residue after wiping.
Philip

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Philip, I have been using for the last several years, the paper "SHOP TOWELS" which are blue lint free type used for working on cars for drying 120, 4x5 and 35mm films after photoflo diluted in distilled water.

These are available at most any major retailer, they work great, I get mine at Sams Club and they are made by Kimberly Clark.

They also work great as photo blotter. After final wash of fiber based prints, I squeegee with a Bosch windshield wiper blade, and absorb the last drops of water with shop towels before I put them on drying screens.

On the dryer topic, I use a DSA Senrac film dryer to dry the film. They blow cool or hot air for drying, with a timer, and it filters the air before it gets blown onto the film, it works by directly loading the damp film on the metal reels you develop with.

Example - not mine.

Hey,

My advise would be to use this Film Cleaner:

- Ammonia 28%, concentrated - 0.16oz or 5.0ml
- Distilled water 3fl oz or 95.0ml
- Alcohol, isopropyl to make 32fl oz or 1.0 liter

Apply by wiping film base gently with cotton, photo wipes, microfiber. Will work!

All above from Darkroom Cookbook - thanks to its author!

Slawek
www.blurryimages.com

I may be trying that film cleaner recipe. I developed 13 films over the last 2 evenings. No drying marks on any of the films except one. A roll of FP4 120 developed in a tank with another roll of FP4 but only one had drying marks. I think the explanation is that I managed to splash the drying film with tap water (which is extremely hard) whilst it was hanging to dry. I was washing up the film tanks and reels. Anyway, the drying marks have resisted rewashing, breathing on the film and a lens cloth; IPA, a property film cleaner (Photospeed), a drop of distilled water on a fine artist's brush. Nothing so far has shifted the marks (which are definitely on the non-emulsion side). As a last resort I have soaked the film in acetic acid stop and rewashed in distilled water and it remains to be seen if the marks have gone. I bet they have not! I mix my chemicals in distilled water and do the final rinse with distilled water but due the expense (it is not cheap in the UK) I cannot do all the washing with distilled water.

Jim Jones said:

Some photographers report that the suggested dilution of Photoflo can result in drying marks. I've always diluted it more, and rarely have problems. It may help to shake off as much of the Photoflo bath as possible before hanging the film up to dry.

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+1
Yes 2 to 4 drops per 250 ml is more than enough.