Bob Carnie
Allowing Ads
Hi Ian and other Chemical Gurus
So we have been successful in making over 18 large scale negatives for various alt printing purposes using my Lambda . We are now going to print them out on different processes and stocks and see where we are. I started a group called the Toronto Farm Project and those members who stuck with us and took training with various experts are now going to put these negs to the tests.
We used rollie ortho 25 iso that we purchased in long rolls to work on our lambda.
We processed by hand in monster trays and used HC110 .. the mix was as follows 1419 ml of Hc-110 straight out of the bottles with 22 litres of water at 70 degree.Process Time was 7 min tray.
Our 21 step calibration balanced in perfectly on all three lasers so I am a very happy camper.. We got a great Dmax on the film and actually can get better.
We exposed about 30 ft of film at 20 inch width and questimated replenishment as it took us 7 four foot finals to complete the various negative.
We worked from, digital capture, scan , and made some tri colour negs with a K black neg too boot for four colour carbon and gum tests.
So here is my question from you Chem geeks. How do I make from scratch a comparable developer that I can use in a processor and set up a replenishment line... I have the processor, but I will require a developer that is sturdy, replenishable, and will last in tank for two days. I prefer a scratch developer for this as we all know the Manufacturers are dumping stock on a regular basis and for my sanity I need a solid alternative to store bought developer
the plan is to mix, balance run , then dump after film is done.
The handsome dude is me with one four colour seperation output sets, as well I have included the 21 step calibration to give you an idea of what has to happen even before I try to make the negs from files.
This calibration step is critical to all processes that can be done on a lambda, there are many processes that all require the grey patches to be balanced before the exposing unit will give you good results.
Any suggestions would be of great value to me.
thanks in advance
So we have been successful in making over 18 large scale negatives for various alt printing purposes using my Lambda . We are now going to print them out on different processes and stocks and see where we are. I started a group called the Toronto Farm Project and those members who stuck with us and took training with various experts are now going to put these negs to the tests.
We used rollie ortho 25 iso that we purchased in long rolls to work on our lambda.
We processed by hand in monster trays and used HC110 .. the mix was as follows 1419 ml of Hc-110 straight out of the bottles with 22 litres of water at 70 degree.Process Time was 7 min tray.
Our 21 step calibration balanced in perfectly on all three lasers so I am a very happy camper.. We got a great Dmax on the film and actually can get better.
We exposed about 30 ft of film at 20 inch width and questimated replenishment as it took us 7 four foot finals to complete the various negative.
We worked from, digital capture, scan , and made some tri colour negs with a K black neg too boot for four colour carbon and gum tests.
So here is my question from you Chem geeks. How do I make from scratch a comparable developer that I can use in a processor and set up a replenishment line... I have the processor, but I will require a developer that is sturdy, replenishable, and will last in tank for two days. I prefer a scratch developer for this as we all know the Manufacturers are dumping stock on a regular basis and for my sanity I need a solid alternative to store bought developer
the plan is to mix, balance run , then dump after film is done.
The handsome dude is me with one four colour seperation output sets, as well I have included the 21 step calibration to give you an idea of what has to happen even before I try to make the negs from files.
This calibration step is critical to all processes that can be done on a lambda, there are many processes that all require the grey patches to be balanced before the exposing unit will give you good results.
Any suggestions would be of great value to me.
thanks in advance
