HC 110 dilution B

[CraigH]

Many people talk about HC 110 dilution B as a 1 shot developer. If I use a Peterson tank & 120 film, how many cc's do I use with a syringe & how much water.

craig

 

[PHOTOTONE]

Here is the link to the Kodak technical publication on this developer, which lists all the information you wish.

http://www.kodak.com/global/en/professional/support/techPubs/j24/j24.jhtml

I would like to add, that HC-110 dilution B also makes an excellent deep tank developer, which can be replenished.

 

[Chuck_P]

How much solution does the patterson tank use? Dil B is 1:31 when mixed from concentrate. So do the math by taking the volume of the tank over the total parts. Ex: 600ml tank divided by 32 parts = 18.8ml per part. So 18.8ml of syrup to 600ml tank will give you Dil B.

 

[gainer]

Many people talk about HC 110 dilution B as a 1 shot developer. If I use a Peterson tank & 120 film, how many cc's do I use with a syringe & how much water.

craig

Divide the number of cc's of working solution you want to make by 32 to get cc's of HC110 syrup. Add water to make the rest. Round off to the nearest 1/10 cc.

 

[jim appleyard]

Here's lots of info on HC-110: http://www.covingtoninnovations.com/hc110/

 

[Mainecoonmaniac]

Of course it depends on the developer. As far as I know about HC-110, dilution B from STOCK is 1:7. An ounce of stock solution to 7 ounces of water to make 8 ounce of working developer. From CONCENTRATE, it's 1:31. An ounce of concentrate will make 32 ounce of working dilution B.

 

[Gerald C Koch]

HC-110 dilution B is the only dilution that Kodak recommends for replenishment. All more dilute concentrations are intended only as one-shots.

 

[Mainecoonmaniac]

HC-110 dilution B is the only dilution that Kodak recommends for replenishment. All more dilute concentrations are intended only as one-shots.

Too bad they stopped making the replenisher

 

[MattKing]

HC-110 dilution B is the only dilution that Kodak recommends for replenishment. All more dilute concentrations are intended only as one-shots.

Not true Gerald.

See page 7 of J-24: http://www.kodak.com/global/en/professional/support/techPubs/j24/j24.pdf

 

[ColColt]

The one problem with Dil B is the short developing time if you choose to use 75 instead of 68 degrees. That's the main reason I went to Dil H. Just 5ml of concentrate to 300 ml of water to do one 35mm roll or twice that for two.

 

[Saganich]

Agreed. I did likewise due to higher ambient temperature. Quite temp and agit sensitive IMHO but nice when finally tamed.

 

[Gerald C Koch]

Not true Gerald.

See page 7 of J-24: http://www.kodak.com/global/en/professional/support/techPubs/j24/j24.pdf

Hi Matt,

This Kodak document is rather old (Oct 2002) and it mentions using HC-110 Replenisher which Kodak discontinued some years ago. Sometime afterward Kodak devised a method of "self replenishment" but described it only for dilution B. Self replenishment and use of a specific replenisher are different with respect to their actions and effectiveness. So I stand by my comment.

 

[MattKing]

Hi Matt,

This Kodak document is rather old (Oct 2002) and it mentions using HC-110 Replenisher which Kodak discontinued some years ago. Sometime afterward Kodak devised a method of "self replenishment" but described it only for dilution B. Self replenishment and use of a specific replenisher are different with respect to their actions and effectiveness. So I stand by my comment.

Sorry Gerald - I'm still using a supply of replenisher.

Do you have a link for Kodak's self-replenishment suggestion?

FWIW, I'm using dilution E.

 

[Gerald C Koch]

Sorry Gerald - I'm still using a supply of replenisher.

Do you have a link for Kodak's self-replenishment suggestion?

FWIW, I'm using dilution E.

There was a post on AGUG from someone who had contacted Kodak after the replenisher was discontinued. Kodak said that they were working on a self replenishment system for dilution B. After that there seems to be no further information from Kodak. I did find some recommendations from people other than Kodak with differing amounts used per roll. I didn't save the info because it wasn't official and the amounts varied. The problem with self replenishment is that it only partially corrects for bromide and the increase and pH change.

 

[Newt_on_Swings]

If you are quick with it, dilution b does not have to be one shot. you can pour from one tank to another to develop other rolls, with only a very slight increase in development time. The most I have tested this with is in a 3 roll Patterson tank, to a 2 roll tank, and finally to another 2 roll tank. the last tank i increased development time by a minute and all rolls came out well. I don't normally do this, it was more of an experiment on if it could be done and how much developer was I wasting doing dilution b often.

 

[David Allen]

Many people talk about HC 110 dilution B as a 1 shot developer. If I use a Peterson tank & 120 film, how many cc's do I use with a syringe & how much water.

craig

The simplest way of using HC110 in a Paterson tank that accommodates 2 x 35mm film spirals or 1 x spiral for 120 film (you can load two films on this spiral) is to choose a combination that is not quite dilution B but easy to measure in a repeatable manner.

Firstly, ignore the tank's 500ml recommendation and use 600ml of water at 20˚C. Add to this 18ml of HC110 concentrate and use as a one shot developer. For a film such as Tri-X use 6:30 as your starting point.

The most important thing to control at this dilution is agitation. I use 4 inversions in the first 30 seconds and thereafter one inversion every 30 seconds. The inversions should be gentle and followed by a tap on the bottom of the tank to displace air bubbles. A gentle inversion is to invert the tank over one second (count Mississippi one in your head) by following the shape of a lower case letter n so that the top of the tank is now underneath then follow the shape of a lower case letter n backwards (count Mississippi one in your head) so that the top of the tank is at the top. Then tap the bottom of the tank and leave until the next inversion.

Bests,

David.
www.dsallen.de

 

[gzhuang]

Firstly, ignore the tank's 500ml recommendation and use 600ml of water at 20˚C. Add to this 18ml of HC110 concentrate and use as a one shot developer. For a film such as Tri-X use 6:30 as your starting point.

500ml is absolutely adequate depending on the way you load your reels.

 

[David Allen]

500ml is absolutely adequate depending on the way you load your reels.

Yes 500ml is the suggested amount and is sufficient to develop a 120 film.

However, you appear to have missed my point:

"choose a combination that is not quite dilution B but easy to measure in a repeatable manner".

Using 500ml of water you need to accurately and consistently measure 16.13ml of the HC110 syrup - which is damned difficult.

Using 600ml you need to accurately and consistently measure 18.8ml of the HC110 syrup.

If you mix 18ml of HC110 (which is easy to measure either with a small measure or syringe) with 600ml of water you will have a combination that is easy to mix in a repeatable and accurate fashion and you will have more developer than required so you will never have any problems with uneven development due to loss of developer during processing. This is for one shot use of course.

Bests,

David.
www.dsallen.de

 

[gzhuang]

If you mix 18ml of HC110 (which is easy to measure either with a small measure or syringe) with 600ml of water you will have a combination that is easy to mix in a repeatable and accurate fashion and you will have more developer than required so you will never have any problems with uneven development due to loss of developer during processing.

Fair enough, mix up 600ml, use 500ml and retain 100ml as replenishment.

 

[John Bragg]

Yes 500ml is the suggested amount and is sufficient to develop a 120 film.

However, you appear to have missed my point:

"choose a combination that is not quite dilution B but easy to measure in a repeatable manner".

Using 500ml of water you need to accurately and consistently measure 16.13ml of the HC110 syrup - which is damned difficult.

Using 600ml you need to accurately and consistently measure 18.8ml of the HC110 syrup.

If you mix 18ml of HC110 (which is easy to measure either with a small measure or syringe) with 600ml of water you will have a combination that is easy to mix in a repeatable and accurate fashion and you will have more developer than required so you will never have any problems with uneven development due to loss of developer during processing. This is for one shot use of course.

Bests,

David.
www.dsallen.de

Yes 500ml is the suggested amount and is sufficient to develop a 120 film.

However, you appear to have missed my point:

"choose a combination that is not quite dilution B but easy to measure in a repeatable manner".

Using 500ml of water you need to accurately and consistently measure 16.13ml of the HC110 syrup - which is damned difficult.

Using 600ml you need to accurately and consistently measure 18.8ml of the HC110 syrup.

If you mix 18ml of HC110 (which is easy to measure either with a small measure or syringe) with 600ml of water you will have a combination that is easy to mix in a repeatable and accurate fashion and you will have more developer than required so you will never have any problems with uneven development due to loss of developer during processing. This is for one shot use of course.

Bests,

David.
www.dsallen.de

16ml in 500 works fine and has been my mix for B. Dilution H 8ml in 500.