KODAK XTOL PDF

The Santa RAE emulsion is new outside the powers of the north! Early testing was done with various developers across 8 rolls of the film. Today 6th of March the first test rolls began shipping for human testing. If you are one of the first testers please share your best practices and feedback on the film - comment below this post, tag santa on instagram, or send us an electronic mail letter.

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You dissolve the powders sequentially in warm water to make a stock solution that can be stored for a few months in full PETE or glass bottles. The fine grain effect is achieved using a silver solvent, sodium sulfite, which dissolves the edges of the film grains. This provides additional smoothness of the final image at the cost of reduced resolution and fine detail.

The solvent action is reduced by dilution or by ageing of a replenished solution. XTOL is an ascorbate-based developer and is therefore relatively environmentally friendly.

The drawback is that if you are using an inversion tank, the economy is poorer than necessary, e. This is still an economical option for rotary development systems like Jobo because much less liquid is required to cover the film.

Undiluted, Replenished This approach has great economy for inversion tanks because you consume only mL per roll, no matter the quantity required to cover the film. See how to operate replenished developer. Development times must be adjusted as the developer seasons, beginning with the one-shot undiluted time and tending towards a longer time as the developer seasons. Failure to extend the time will result in severe underdevelopment and the loss of approx one stop of film speed less shadow detail.

This technique is most suitable when large quantities of film are being developed, which makes it easier to keep the process in control; it is not recommended for beginners. XTOL is infamous for "XTOL Death", wherein stored developer suddenly becomes completely inactive with no warning signs such as discolouration or a gradual reduction in activity. Causes typically blamed for XTOL death are: the original 1L packages; Kodak no longer sells them, and contaminated water, e.

Therefore when making up XTOL, follow these precautions: use a fresh, undamaged 5L packet, make it up with bottled or demineralised water, exclude all air when storing the developer for longer than a few days, and use only glass or PETE bottles.

XTOL made up in this way can last for 6 months with no issues. The reduction in the quantity of water present means a reduction in the quantity of dissolved oxygen and therefore theoretically better keeping properties.

The higher concentration must be accounted for when using the developer though, e. See general tips on how to store developer.

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Kodak Xtol BW Developer - New Packaging in 2019!

You can read this entire blog but my final developing test results are, nothing inside the package has changed. To expand on my test keep reading. First, a new cat number and new packaging do not indicate a changed product. Note that new catalog numbers may require online sites to make a new listing for a product and the old listing may show that it has been discontinued. Xtol has not been discontinued. I shot both rolls in the same camera, cut them in half in the darkroom and process part in Xtol I had mixed 6 weeks ago and the second developed with the new packaged product mixed 36 hours before.

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You dissolve the powders sequentially in warm water to make a stock solution that can be stored for a few months in full PETE or glass bottles. The fine grain effect is achieved using a silver solvent, sodium sulfite, which dissolves the edges of the film grains. This provides additional smoothness of the final image at the cost of reduced resolution and fine detail. The solvent action is reduced by dilution or by ageing of a replenished solution. XTOL is an ascorbate-based developer and is therefore relatively environmentally friendly.

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Révélateur : XTOL

It is suitable for nearly all black-and-white films giving true box speed, fine grain and high sharpness. Xtol is an ascorbic acid, vitamin c developer, and we all know vitamins are good for us so it must be good for your film as well. Xtol is a solvent developer, it produces fine grain by allowing silver to redistribute during development. This solvent action slightly reduces resolving power.

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