HC-110 Dilution

[sajjad]

I have started using HC-110 developer, but every time i use the negs come out dark, detailes missing.

some one told me that it might be the dilution problem.

could someone tell me how to go about dilution-B please.

 

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Regards to all.

[greg_klabouch]

What I use is 1oz. of concentrate to 31oz. of water, works very well

for me, good shadow detail, nice contrast. Agitate every 30 sec.

maintain contant temp. Hope this helps.

[alec1]

Check here for more info. http://www.covingtoninnovations.com/hc110/

[ann_c_lancy2]

What you are describing seems to be an exposure problem rather than a

dilution problem. What is the rating of the film? Different developer

and film types may call for a different exposure index. I have been

using HC110 for over 30 years and it is the main developer for all my

students. Even when my advance people use other combos they keep

coming back to this developer.

[bobatkins]

It could be exposure or it could be the old problem with HC-110

dilutions - not reading the instructions correctly. Quite a few people

mix up dilution from concentrate with dilution from stock. If you

dilute STOCK (i.e. the concentrate mixed with the specified amount of

water) 1:7, you're OK. If you dilute CONCENTRATE (i.e. the stuff

straight out of the bottle) 1:7 you overdevelop everything.

[lars_kristensen]

John!

 

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HC-110 stock solution is 1 part HC-110 and 3 parts of water. To make

dilution B take 1 part of stock slution and 7 parts of water.

This means that dilution B is 1 part of HC-110 and 31 parts of water!

I think that, but I'm not sure, that 5-7 minutes will give you good

starting points for T-MAX and TRI-X for example. I use HC-110 1+50

and have a couple of more minutes. 20 degrees C.

/Lars

[Rob F.]

You can also use a one-ounce graduate cylinder to measure out 1/4 oz.

of concentrate to make 8 oz. of working strength solution; or 1/2

oz.of concentrate to make 16 oz. working strength. If you do this,

then after pouring the concentrate from the graduate into an 8 oz. or

16 oz. container, you should put some water into the graduate and

shake it to dissolve the remaining syrup into solution, which is then

added to the working-strength container. Do this several times,

until you have gotten all the syrup from the graduate. This will

ensure that you have the proper working strength. Just fill the

container to the 8 oz. or 16 oz. mark to finish the brew, and mix

well.

 

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The advantage of this method is that you don't need to keep a stock

solution. This helps to maximize the shelf life of the developer.

It's easy, too.

[mark_blackman1]

As HC is a very thick, viscous liqued, I suggest you do your

diluations at the highest volumns possible, ie: rather than taking 33

ml to make up one litre of developer use, say, 100 ml to make up 3.2l

 

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with such a high ratio (1:31) a slight mistake in measurement

(especially if you don't dissolve all of the HC in your measuring

device) it is easy to make a weak solution.