Tri-X and Rodinal --> ISO?

[Florian1234]

Hello all,

in the datasheet of the Agfa developers there's that table with the needed dev-times for the various available b&w films.
What puzzles me is that there's ISO 500 for Tri-X instead of 400.

How to solve this "problem" - or is it not an issue?
Any hints are welcome.

[petronius]

Digitaltruth has many more combinations: http://www.digitaltruth.com/devchart.html
Tri-X/Rodinal seems to be every ASAs darling ;-)

[varjag]

The actual ISO rating would be somewhere around 250. At 400 it already feels too contrasty.

[like2fiddle]

Tri-x at 250 in Rodinal is one of my favorites.

One of the reasons I like Tri-x so much is that it can be shot at and acceptably developed at a wide range of speeds quite easily and consistantly. Rodinal @ 250, almost any other developer @ 400/800, Diafine @ 1250/1600.

[charjohncarter]

I'm another using 200-250 EI for Trix with Rodinal 1+50. I read in a very old (1975?) Pop Photo article where the author discouraged the use of TriX stand developed in Rodinal 1+100. I tried it anyway. It didn't work for me, but stand development TriX with HC-110 (1:123) did. That article was on Rodinal in general and very good. I printed it off the WWW, it was originally posted by a RFF member. If you want it I have it still, I think.

[Florian1234]

So I then shoot Tri-X at 250 and develope it in Rodinal? Sounds very nice.

What about the grain with this setting?

[dof]

As for grain, you'll find the negatives are somewhat grainier than with many developers, but sharper due to Rodinal's famous high-accutance nature.

I have found that using lower ISO's has more of an effect on the shadow detail than grain structure compared to rating the film at 400. I 've never tested or shot this combination above 400.

And 200 is my preferred speed rating.


-j.

[charjohncarter]

There is an increase in grain, but it isn't as bad as many think it is. Sorry, this is 6x6 but you can see that it isn't horrible. I couldn't find a 35mm example:

http://farm3.static.flickr.com/2175/2328679531_a06441d368.jpg?v=0

[charjohncarter]

AHH, found one, this is TriX at 250 in Rodinal 1+50, 35mm:

http://farm4.static.flickr.com/3164/2462308478_c049e85c4c.jpg?v=0

[sockeyed]

A few years back, there was a lot of discussion here on RFF about using Rodinal for really high-speed Tri-X. It pushes amazingly well in Rodinal 1:50. Keeping the grain down is all in the (minimal) agitation.

1600 20-22 mins
3200 30-33 mins
6400 41 mins
12,800 51 mins

Times are all for 68F, agitate first 5 secs, and then wait 5 minutes to do it again. Agitate every 5 minutes for 5 secs.

At 1600:
http://farm1.static.flickr.com/33/38435454_30ddc1e591_b.jpg

[Florian1234]

Thank you all for the helpful tips. So I'll try it at rated 250 in Rodinal next time I get hands on a roll of Tri-X (currently I'm using APX100).

[titrisol]

I have shot TriX at box speed in Rodinal, not bad in 1+25
It has a nice 60s grain and decent tonality.

However, if grain is not what you want, then shoot as 200