Yup, most likely dust. Also the tiny specks. My main advice would be to try and maintain a dust-free environment during drying. I've never found HEPA filters to be a necessity, but some basic hygiene measures are usually in order. E.g. prevent airflows that may stir up and carry around dust in rooms that aren't spotlessly clean.That looks like dust
Id love to but when I abandon it my negatives are unusableSkip the Salad Spinner.
Yup, most likely dust. Also the tiny specks. My main advice would be to try and maintain a dust-free environment during drying. I've never found HEPA filters to be a necessity, but some basic hygiene measures are usually in order. E.g. prevent airflows that may stir up and carry around dust in rooms that aren't spotlessly clean.
Another issue that sometimes pops up is when C41 fixer is reused. In my experience, C41 fixer tends to throw down tiny specks of precipitate sometimes, which somehow stick to the film much better than anything else. Filtering reused fixer helps, and so does using fixer one-shot.
Really contemplating a hepa filter near both my drying and scanning spaces. I also use the cinestill powder kit without stabilizer, could that be the problem?That looks like dust -- with distilled water and stabilizer you should just be able to hang them and minimize dust by keeping the film in some sort of enclosed space. If you find you have a lot, try a hepa filter in the room.
Just remember Hepa filters have exhaust air so it will blow air around your drying/scanning spaces. This can stir up settled dust on surfaces and blow it around. They work better when you AREN'T actively using these spots rather than while you are. Turn them on when you aren't using the area and on when you aren't drying/scanning. I have twelve units in my office and one at home and have been using them for the past year so I do have a fair amount of experience with what they'll do to an area. My two cents.Really contemplating a hepa filter near both my drying and scanning spaces. I also use the cinestill powder kit without stabilizer, could that be the problem?
Thank you for the insight, noted!Just remember Hepa filters have exhaust air so it will blow air around your drying/scanning spaces. This can stir up settled dust on surfaces and blow it around. They work better when you AREN'T actively using these spots rather than while you are. Turn them on when you aren't using the area and on when you aren't drying/scanning. I have twelve units in my office and one at home and have been using them for the past year so I do have a fair amount of experience with what they'll do to an area. My two cents.
Yes.Can dust be bonded to the negative like that where it looks like a stain, especially in this pattern?
I will do a development session tonight and send samples like you've described. I would be pretty happy if it turns out it wasnt my water causing the issue because thats very much outside my control. But the local water does have high amounts of calcium and magnesium.Can you show a photo of your negatives,
As has been suggested above, I would not use a salad spinner for the simple reason that all that moving is making it very easy for the film to pick up any floating particles in the air.
- using the salad spinner
- not using the salad spinner
Unless your local water supply is like "ditch water", I can't see that causing any problem.
Did you filter your C41 chemicals?
Dust and debris on negs at time of developing is usually caused by one or more of the following, particles in the chemicals, particles in the wash, particles in air at drying.
Update. Developed five rolls and it was a disaster. I must have rewashed the film at least three times in de-ionized water. I'm agreeing with you guys on this one that it could be the dust. My neighbours are doing construction and a lot of drilling and laying of cement has been going on so there must be a higher dust content in the air although my bathroom is sparkly clean. I'm thinking that the dust sticks to the negative in places where there are still droplets of water, which is why the dust takes such a shape or pattern that led me to believe it was minerals in the water. Could that be a thing?
I bought a collapsible film drying bag with vents and filters that I saw in an ebay listing today. I hope it solves my problem. I will also invest in kodak final rinse
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Thank you. Any air purifiers that you recommend?That sounds like your problem. I’d get a HEPA air filter for the room (not just for the film, also for you), make sure your doors are closed, and dry the film in a bag like you suggest to see if that helps. My bet is it will.
Personally I have two LEVOIT units from Amazon and they work quite well. In theory most units with HEPA in the name should perform similarly. If you’re super crazy you can get an air quality monitor to measure PM2.5 and see the results. They were pretty effective when I made a poorly constructed fire in the fireplace and filled the house with smoke.Thank you. Any air purifiers that you recommend?
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