HC110 with TMax 100 or Ilford films

[martin_alston]

I have read a lot of people that seem to use HC110 at a 1:45 ratio. I'm trying

to come up with a starting time for development. I current use a lot of TMax

100 but have started using some Ilford films. The only development times I can

find on any charts is for dilution A and B. Why aren't the other dilutions on

the charts? I've seen a few people say develop the 1:45 for about 4:30, but

according to the chart @ 68* you should develop for 6 minutes for dilution B.

Since 1:45 is a weaker dilution, shouldn't the development time be longer?

[RobertChura]

Here's what I used for Tmax. It came from John Sexton <P>

http://webpages.charter.net/rchura/film.htm

[RobertChura]

Sorry, the previous is for tmax developer

[ronald_moravec1]

Not to brag, but I was the one who started posting that procedure. The times for Tri x at 1:32 and EI 200 are too short for good control and diluting to 1:63 makes to much grain. 1:45 is about in the middle and the negs are amazing.

 

If you double the dilution ( 1:63), times are normally extended 50%, say four to six minutes. 1:45 should be right in the middle, 5 minutes. I tested and it works.

 

Another way is just multiply the time for 1:32 by 1.25. Just shoot 6 frames on a roll, pull out 12 in in the dark and develope and PRINT for a trial. I have a bench marked with various distances for how many frames have been used and I develop partial rolls all the time

[ronald_moravec1]

I might add HC110 will develope TMax 100 and the prints will look good to you until you compare them to D76 negs/prints. Do the same subject at the same time with both. You will see what I mean.

 

Kodak`s site lists Xtol and D76 in bold letters meaning they are a primary recommendation. HC110 is not bold meaning it is secondary. They no longer clearly explain this coding, but it has been in use 50 years I know about.

 

It works fine with Delta 100, 5 min at 68 for a condenser enlarger.

[jim_appleyard]

More info: http://www.covingtoninnovations.com/hc110/

 

http://www.mironchuk.com/hc-110.html

[paul_viapiano]

I use HC110 with Tri-X (TXP 320) all the time at Dilution H (twice the dilution of "B") and have no problem with grain using small tank processing of 120 film.<p>

 

<a href="http://www.flickr.com/photos/viapiano/sets/72157594181176569/">Click here for an example</a><p>

 

I have yet to try it with TMax 100/400, but there was a very nice portfolio in last month's View Camera magazine, wherein the photographer used HC110 Dilution B with TMax and the results were excellent.