Processing time FP4 / HC-110 1+50?

[stradibarrius]

I have used HC-110 at 1+50 for most of the films I have used. I have just shot my first 120 roll of FP4 at ISO100.
I need a processing time for HC-110 at 1+50 dil.

It seems like 8 min @68deg is the magic number for so many films, is 8 mins the number for FP4 as well?

 

[hpulley]

I use it at dilution B or A but Google is your friend and this fellow lists times for 1+49 HC-110: http://www.jasonbrunner.com/hc110.html

 

[stradibarrius]

Yes I have used Jason's chart with great success but there is no FP4 listed. I have Googled an no 1+50 results.

 

[Jim Noel]

What you are askng for is someone who has done the work to give it to you. Do it yourself. Determine your own times by running tests. That is the only way you will get precise times for your method of working with the water available to you.

 

[stradibarrius]

That's right! Why waist film, chemistry, water and time just to reinvent the wheel? There is almost no question that anyone can asked here that your statement could not apply to. Everything has been done by someone else so asking any question is asking someone who has done the work before.

 

[johnnywalker]

Yes I have used Jason's chart with great success but there is no FP4 listed. I have Googled an no 1+50 results.

I made a copy of Jason's chart and have FP4+ written down at 11 minutes for ISO 125 and 9 minutes for ISO 64 at 68F.

 

[stradibarrius]

Thanks JohnnyW

 

[SWphoto]

I just looked at Jason's site via the link above, and there are 2 listings for FP4:

Ilford FP4+ @ 64 - 9 min
Ilford FP4+ @ 125 - 11 min

 

[stradibarrius]

Man I looked at that chart first thing. I have it taped to the inside of my dev. book and just missed it! I have looked at that chart a million times !!!!
Can't see the forest for the trees.

 

[George Collier]

My recipe - produces beautiful negs for me, with my Rollei's:
2 min presoak,
1 min agitation, Dev at 70º, 16min, 15 sec agitation (agitation invert/twist and rolling) every 3 min -
HC110, 8:480 (distilled water), I use 400 - 425ml in the tank to allow room for the chem to move. TF4 fix.
This in a 500ml tank, Hewes reel, and I use a spacer (section cut from an old plastic 35mm "can") above the reel to keep it from moving around in the tank.

 

[jbl]

for me...

From my own testing, I ended up at 11 minutes exposing at EI 100.

-jbl