One of these HC-110 questions again...

p.giannakis

p.giannakis

Pan Giannakis
Local time
1:37 PM
Joined
Jul 8, 2008
Messages
5,999
Hi everyone,

I have been using HC-110, dilution H for some time now and like the results. I use 8ml of developer in 492ml of water in a 500ml tank.

Recently i had to throw away that tank as it broke. I have a smaller 300ml tank and i am thinking about using that more.

I know that i need a minimum of 6ml of HC-110 per film, which - for the 300ml tank - we are talking about 1:50 dilution.

Does anyone have any developing times for Kodak Tri-X and TMax-400 for 1:50 ? I haven't been able to find something. I expose the films at 400 ISO.

Thanks!
 
http://www.covingtoninnovations.com/hc110/


"Michael Gudzinowicz (on rec.photo.darkroom) recommends dilution H (syrup 1:63) for higher acutance. Development times are to be found by experiment, but are likely to be 50% to 100% longer than for HC-110 (B). I find that doubling the time for Dilution B is a good starting point."
 
kxl said:
http://www.covingtoninnovations.com/hc110/


"Michael Gudzinowicz (on rec.photo.darkroom) recommends dilution H (syrup 1:63) for higher acutance. Development times are to be found by experiment, but are likely to be 50% to 100% longer than for HC-110 (B). I find that doubling the time for Dilution B is a good starting point."
Click to expand...

Thank you,
I've been reading this page but what got me thinking is that it says "for dilution E add 50% more time of Dilution B"
That means Tri-X for 6 minutes and Tmax for 9.

Does that sound right? Such a big difference in developing times for two 400 ISO film?
 
p.giannakis said:
Thank you,
I've been reading this page but what got me thinking is that it says "for dilution E add 50% more time of Dilution B"
That means Tri-X for 6 minutes and Tmax for 9.

Does that sound right? Such a big difference in developing times for two 400 ISO film?
Click to expand...

Unfortunately, it's more or less a matter of experimenting between 50% to 100% longer than Dil. B. Good luck!

Reminder: the dilution also depends on whether you start with the syrup (in the US) or a bottle of concentrate (in Europe).
 
My tank is 300ml.
i use 1:50 dilution, so 6cc's per to make 300ml.
It's not rocket science! There is leeway.
I use Kentmere 400 at 12~15 mins for 72~74*F.
My thermometer may be suspect! Consistent is the answer.
HP5+ at 8mins. Same temps and Dilutions.
Agitate 10" per 60", no agitate last 3mins.
Negs scan nicely on Canonscan.
Tri-X and T-Max should be on "Massive Development" Chart.
There is a blog on HC-110 that deals with Kodak films and HC-110.
Do what we all used to do!
Shoot a few frames and do a test.
Easy to cut out of a SLR, not a Leica M.!
 
HC110 is fairly Linear. 1:50 is 1.56x greater than 1:31 so multiply your time by 1.56 and round a little up or down. I like 2x + 1 minute longer when I use 1:63. I also prefer to change my agitation scheme to two minutes at higher dilutions.
 
esearing said:
HC110 is fairly Linear. 1:50 is 1.56x greater than 1:31 so multiply your time by 1.56 and round a little up or down. I like 2x + 1 minute longer when I use 1:63. I also prefer to change my agitation scheme to two minutes at higher dilutions.
Click to expand...


I'm with you on the timing, but I change the agitation to VERY slow inversions over 10-12 seconds every three minutes. Find I get the best results that way.
 
Got to the same website KoFe links above. One of the tabs on the left will do the conversion for you if you put in the starting time and temp you have. You can then pick a temp and it will give you the time. Easy.
 
roscoetuff said:
Got to the same website KoFe links above. One of the tabs on the left will do the conversion for you if you put in the starting time and temp you have. You can then pick a temp and it will give you the time. Easy.
Click to expand...

Wow! Thanks for that - i never noticed it!
 
You must log in or register to reply here.
Back
Top Bottom