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I've seen the same in pyrocat-hd. Use extremely dilute developer with HR-U.

https://i.imgur.com/6pCU97B.jpg

Silver nitrate and accompanying sources of halides (chloride, bromide, iodide) for emulsions, salt printing, and developer recipes.

Potassium ferricyanide (K3[Fe(CN)6]) for C-22 bleach / farmer's...

I don't have a timer so I just flicked the switch powering my enlarger quickly. 60W incandescent light source through a 50mm lens. Not sure of the f number used.

The enlarger head was quite far...

On a lark I did a double-exposure onto a sheet of 8x10 Fuji HR-U from 2 similar (but slightly offset) half-35mm negatives during my last printing session. Tossed the sheet into a flat bottomed tray...

This is my experience as well. It's not magic bullet, but tendency to scratch while tray processing seems reduced.

You could employ a stop bath augmented with [chrome] alum to harden up the film....

There wasn't anything particularly rigorous about the process since x-ray film affords the ability to do continuous inspection under a safelight, but here's a rough outline. Its essentially the same...

After a few failed attempts, I successfully reversal processed an 8x10 sheet of Fuji HR-U. There were still some scratches owing to the very small volume of solutions I used during tray processing,...

First crack at E6 from dry stock. Velvia 50, Koni-Omega, hand-held.

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Dry nitrogen is sufficiently inert at normal temperature and pressures. Argon has the advantage of being denser and thus more effective at displacing oxygen at the exposed surface of the developer...

Yep, silver chloride emulsion by way of sodium/ammonium chloride, gelatin, and silver nitrate. There's lots of recipes out there that work fairly well and can produce a wide range of subtle...

Exposure times with modern photo paper would need to be pretty quick as mentioned before; likely fractions of a second, as if you were shooting paper negatives.

In fact, if you find contact...

Self portrait
Sinar 8x10 Nikkor W 240mm
Fuji HR-U in Pyrocat-HD
Contact salt print, scanned

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Congrats on your success! I think everyone who works with film photography shares the magical feeling of seeing their images spring into existence during the process. Below is a quick brain dump of...

Thanks for the confirmation, I was totally stumped. I mixed this batch myself in glycol with catechol from PF and phenidone from Artcraft. The sample above was xray developed @ 68F for 12 minutes...

Is this what the symptoms look like? I can't seem to get clean development with my batch of PCHD.

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The film's emulsion (present on both sides, in most cases) is relatively fragile while dry but scratching can be minimized with careful handling during loading/unloading. The emulsion becomes...

Shoot first, ask questions later.

Yes, I was pleasantly surprised by those two exposures. I incident metered Fuji HR-U @ 200, which was a bit generous, but I figured added reflectivity from snow and stone needed to be taken into...

A few university buildings on xray developed in pyrocat-mc. It was so cold today I saw a squirrel in the woods salting his nuts.

https://i.imgur.com/UvX0PEG.jpg

https://i.imgur.com/5hwUhe8.jpg

https://i.imgur.com/3Ir5kY9.jpg

210mm Geronar 8s @ f45 with Fuji HR-U in homebrew Prodinal 1:100 ~7m with a smutty coffee table backdrop.