One Shot HC-100

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ConnectingTheDots

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How do I mix Hc110 for a one shot use in an 8 ounce tank straight from stock solution? I'm reading some notes from a friend and he says to use it 1 ounce of stock with 7 ounces of water? Does that sound right?

Thanks..
 
ConnectingTheDots said:
How do I mix Hc110 for a one shot use in an 8 ounce tank straight from stock solution? I'm reading some notes from a friend and he says to use it 1 ounce of stock with 7 ounces of water? Does that sound right?

Thanks..
Click to expand...

HC-110 as poured from the original bottle is CONCENTRATE, not stock. You dilute one part concentrate with three parts water to make the stock. The stock is then diluted one part stock to seven parts water to make Dilution B.

You can also make Dilution B directly from the concentrate by diluting it one part CONCENTRATE to 31 parts water. In other words, 1/4 ounce of HC-110 to 7 3/4 ounces of water to make 8 ounces of HC-110 Dilution B
 
I dilute it as needed direct from concentrate. Saves storing large quantities of stock and also ensures fresh one shot development. The only issue here is that a syringe is needed to accurately measure the gloopy syrup that it is. I have used this method over many years and it is reliable and has eliminated failure of stock over time. Good luck !
 
I too prefer to use a one shot developer and I find HC-110 to be a very good. I generally use it with HP5, Delta 100 and Neopan 400.

I use a ratio of 32ml of HC-110 for every litre I mix.
For most films that gives roughly 6 mins developing time (with very gentle agitation) at 20ºC.

I pour mine straight out of the bottle into a 100ml measure. It can be done reliably and accurately with a little practice.



.
 
I only use the concentrate diluted.
i have worked out my own, 1:50.
The developer is great!
I used Rodinal for about 40 yrs..
I accepted the film base fog.
HC-110 does not have this.
Wonderful clean base.
There are a number of sites to read more about various dilutions.
 
I found a greatly simplified method over at APUG.org and have been using that for nearly everything lately once I bought the plastic tipped syringe as described above (no needle tip required, obviously). "Easy HC110" in the search there should get you the info.

5ml per roll, mixed up with enough water to cover. Some people have tried going to higher dilutions and I've done one roll of 120 with 2ml but prefer not to add developer exhaustion as another variable affecting contrast so I'm back to 5mL for simplicities sake.
 
I use HC-110 diluted to 1:100. With a syringe I pull out 15ml of developer from its container and add it to 1500ml water in my 5 35mm reel developing tank. (Technically it should only be 1485ml, but close enough.) That's 3ml per roll and this works just fine for me.
 
Consistency is critical. You should measure thick liquids, like HC-110 straight out of the bottle, in some cylinder or syringe where the column of liquid will be at least 4x the diameter of the cylinder or syringe. Also, you measure to the bottom of the meniscus and carefully rinse all of the thick chemical out of the cylinder/syringe and into the mix.

I used to do this, creating Dilution A directly from the syrup. I used a large calibrated eyedropper which I carefully rinsed in the premeasured water used for the dilution. I was doing tray development of 4x5 negs this way.
 
Dwig said:
Consistency is critical. You should measure thick liquids, like HC-110 straight out of the bottle, in some cylinder or syringe where the column of liquid will be at least 4x the diameter of the cylinder or syringe. Also, you measure to the bottom of the meniscus and carefully rinse all of the thick chemical out of the cylinder/syringe and into the mix.

I used to do this, creating Dilution A directly from the syrup. I used a large calibrated eyedropper which I carefully rinsed in the premeasured water used for the dilution. I was doing tray development of 4x5 negs this way.
Click to expand...

This is a good point...what ever you use to measure out the concentrate there is still some left in the syringe/measuring cup...
I use a syringe and after pushing out the syrup I'll pull water back in from my soon to be working solution and rinse out the syringe to get all of the concentrate...I do this with HC-110 and Rodinal...
 
nikon_sam said:
This is a good point...what ever you use to measure out the concentrate there is still some left in the syringe/measuring cup...
I use a syringe and after pushing out the syrup I'll pull water back in from my soon to be working solution and rinse out the syringe to get all of the concentrate...I do this with HC-110 and Rodinal...
Click to expand...

+ 1
 
ConnectingTheDots said:
okay so I think I'm going to try the 1/4oz of concentrate to 7-3/4oz of water for a dilution b mix. seems the least confusing to me. hope This works!
Click to expand...

Please go metric!
It's way easier.
I suffered using a "minims" measure with Rodinal 40 yrs ago.
When ZA went metric, it was easy!
None of "your Da*n" rights.. all measures or weights were instantly banned and illegal.
The Covington site a miracle.Posted by "filmtwit".
I use a 1:50 dilution rather than 1:31as easier to calculate.:D
 
Last edited:
ConnectingTheDots said:
okay so I think I'm going to try the 1/4oz of concentrate to 7-3/4oz of water for a dilution b mix. seems the least confusing to me. hope This works!
Click to expand...

Yep, that would be dilution "B". :)
I'm sure it will work fine - it is pretty forgiving stuff in my experience.

Just one fine point about the need for rinsing all the syrup from your measuring container. On the one hand I do that too anytime I am using a small graduated cylinder or other open container to measure the syrup. The stuff really is very thick and tends to stick to the sides quite heavily! So you don't want to loose that. However, when using a syringe you don't actually have to worry about it. That's the beauty of the syringe - the plunger wipes the sides clean and the scale marked off along the cylinder side is supposed to reflect what is actually being dispensed. Now it's true there will be some syrup left in the tip that can't be pushed out, but since that was there before you started dispensing and since the measurement scale doesn't include that volume, it is basically just factored out. Easy-peasy!
 
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