Xtol 1:1

[ryanmills]

I'm having a moment, in my head I thought 1:1 was stock, and that 1+1 would be 50% xtol, 50% water. But does 1+1 and 1:1 mean the same thing because your adding the same amount?

 

[Dr Croubie]

1:1 is the same as 1+1. 100ml dev plus 100ml water = 200ml solution.

1:0 is 1+0 is stock. 100ml dev = 100ml dev.

Whenever I write something I write it like 1+0 or 1+1 because then there's no cause for confusion like some people get with 1:0 or 1:1 (but i don't get confused because my highschool chemistry teacher beat it into us, the correct way to use ratios)

 

[ryanmills]

thanks i almost mixed it stock till i saw a note on the package about diluting it 1:1... lol

 

[Newt_on_Swings]

Dont dilute it until you are about to use.

 

[bernard_L]

Just too bad this notation 1:n has become dominant instead of 1+n; a poor choice since in certain countries 1:n meand 1/n strength. Nothing much can be done about this, tough.

 

[pentaxuser]

thanks i almost mixed it stock till i saw a note on the package about diluting it 1:1... lol

You can use it stock as far as I am aware but most seem to use it 1+1.

pentaxuser

 

[Richard Man]

Generally speaking, the weaker concentrations (1+2 and even 1+3) allow the negs to be souped longer, and thus the highlight possibly more developed. Just make sure you have enough of the stock per roll/sheet of film. i.e. at least 80ml-100ml per 35mm roll or equivalent.

My first mistake in using Xtol was to store the working solution (1+2) and THAT didn't end up well...

 

[Sirius Glass]

Dont dilute it until you are about to use.

Absolutely right! Use it straight or replenished. Read the instructions first.

http://www.kodak.com/global/en/professional/support/techPubs/j109/j109.pdf

 

[psuttner]

If I were to dilute stock dev to 1:1 would it double the development time? Or what ball park % increase would be appropriate?

 

[Dr Croubie]

If I were to dilute stock dev to 1:1 would it double the development time? Or what ball park % increase would be appropriate?

Depends on the film, you should always read the chart
eg FP4+ at ei125 goes from 8 mins at 1+0 to 10 mins at 1+1, that's +25%.
PanF50+ at ei50 goes from 7 to 7&3/4 mins, that's only +10.7%

 

[psuttner]

Typical for me to ask the question first and then read the instructions. Thanks for the response!

 

[Alan Klein]

I like mine straight up. Stirred not shaken.

Oh, sorry. Wrong forum.

 

[Andrew O'Neill]

Generally speaking, the weaker concentrations (1+2 and even 1+3) allow the negs to be souped longer, and thus the highlight possibly more developed.

didgiman, I think you meant the shadows are possibly more developed. Xtol is wonderful out to 1+3.

 

[Sirius Glass]

I like mine straight up. Stirred not shaken.

Oh, sorry. Wrong forum.

But still you have the right idea. Only use Gin, vodka in a Martini was one of Ian Flemming's truly stupid mistakes that he perpetuated in the James Bond books. It shows that Ian Flemming had a complete lack of taste.

 

[Richard Jepsen]

XTOL diluted greater than 1:1 compensates and reduces highlights while giving shadows a boost. 1:3 generally is most useful in contrasty light.

 

[psuttner]

Tried 1:1 dilution and 20% increase in time from Ilford chart. The highlights whew very much in control and plenty of shadow detail. Gin is best with Kool-Aid.

 

[Sirius Glass]

... Gin is best with Kool-Aid.

 

[brian steinberger]

Anyone ever try it at 1:2?

 

[Gerald C Koch]

This is why several people including myself have been campaigning to banish the colon notation in favor of the plus character. Use of the colon causes so much disagreement and confusion. Does 1:2 mean equal parts of developer and water or does it mean 2 parts of water? The notation 1+1 eliminates all doubt.

 

[Bruce Osgood]

I've always thought 1:1 was a ratio and as such meant equal parts of two, and 1+1 was arithmatic. But I can still change: 1+1 forever.

 

[brian steinberger]

1:2 and 1+2 are the same thing. Just as 1:1 and 1+1 are the same. They are interchangeable. It's just how you choose to notate. The first is always parts developer and the second is parts water.

I've never been confused by the use of : vs. +.

 

[Gerald C Koch]

1:2 and 1+2 are the same thing. Just as 1:1 and 1+1 are the same. They are interchangeable. It's just how you choose to notate. The first is always parts developer and the second is parts water.

I've never been confused by the use of : vs. +.

It does not mean the same to all people. The problem with the colon notation such as 1:2 is, and this is a fairly common misunderstanding, does the 2 in the example stand for the total volume of developer or the amount of water used. There are two ways of defining the proportion and this is what leads to confusion. The plus notation removes any confusion.

A few years ago a website discussing the Beutler formula gave the ratio 1:1:10 instead of the usual 1:1:8. The 10 referring to the total volume of developer. While it was clear to the writer many people mixed up developer that was more dilute than usual and then were disappointed with the results.

 

[mrred]

Anyone ever try it at 1:2?

My potion of choice.

 

[Sirius Glass]

My potions of choice ==> 1:0 XTOL and replenished XTOL

 

[brian steinberger]

My potion of choice.

Got any times for FP4, Tri-x, or HP5?