developng in HC 110 in 110 degree F

[StarsInHerEyes89]

Ok so im doing a project. I want to develop tmax 100 film in hc 110 dilution b in 110 degrees f. where do i start with developing time???

[Bruce Watson]

Ok so im doing a project. I want to develop tmax 100 film in hc 110 dilution b in 110 degrees f. where do i start with developing time???

Extremely short. Maybe 30 seconds? Your results will likely be awful. The developer won't have sufficient time to be fully absorbed into the emulsion. Uneven development is a given. Highlight areas will likely be a mottled mess. OTOH, you'll pretty much eliminate the possibility of bromide drag.

Pick a time. Try it and see. What do you have to loose?

[Louie Powell]

You might want to explain what you are trying to accomplish.

HC110 is a great developer, but one of the things that one must deal with when using it is that it typically delivers a short development time. There is often a compromise between letting the development go long enough to get even results, and not letting it go so long that you sacrifice contrast. And elevating the temperature will make that time even shorter.

My personal standard for 35mm TMY is 4.5 minutes in HC110 dilution B at 68 degrees. Most people want development to go at least 5 minutes for uniformity. And according to the development dial in my 30+ year old Kodak Darkroom Data Guide, if the temperature is elevated to 110 degrees, the time would need to be shortened to significantly less than 2 minutes.

[Bruce Watson]

And according to the development dial in my 30+ year old Kodak Darkroom Data Guide, if the temperature is elevated to 110 degrees, the time would need to be shortened to significantly less than 2 minutes.

That's interesting. Makes it sound like it really is diffusion limited at high temps. That is, limited by the time it takes for the developer to diffuse into the emulsion.

[David de Gruyl]

My personal standard for 35mm TMY is 4.5 minutes in HC110 dilution B at 68 degrees. Most people want development to go at least 5 minutes for uniformity. And according to the development dial in my 30+ year old Kodak Darkroom Data Guide, if the temperature is elevated to 110 degrees, the time would need to be shortened to significantly less than 2 minutes.

I got less than one. (1:10 at 38C. 110F is 43C)

[David de Gruyl]

That's interesting. Makes it sound like it really is diffusion limited at high temps. That is, limited by the time it takes for the developer to diffuse into the emulsion.

I am sure of it.

[Ken Lee]

Dilution b is the problem. Save some money, keep your high temperature, but use a weaker solution. Let the film sit in the developer for several minutes.

[Kevin Crisp]

What is the effect of dunking unhardened film in a solution that hot?

[Robert Hughes]

Of course this will push TMax 100 film up to ISO 110...

[StarsInHerEyes89]

ok so im doing a project for experimental photo and what i want to do is develpop in this hot of a developer to get a "dripping" or "melting" effect on my film...ive seen it doen before and it looks really cool soo im liking the dilution h answer ....but again how long