Opportunity is missed by most people because it is dressed in overalls and looks like work. - Thomas Edison
Not everyone can afford the dark room. Some people just don't have the room.
Dan there is a reason I hesitate to even bother with a test like I spelled out and that is no matter the results there will still be nay sayers no matter the results.
Hell, technically the "UV safe" bulbs in your dark room aren't 100%. Do the ol' coin on a screen trick and see for yourself.So now, you need to coat and preregister in complete blackness to keep your emulsion 100% effective.
Dan I am trying to show or prove no loss of dots versus you keep talking about gaining x amount of dots thats not what i am doing, my point is to show in a working day to day shop the out side shop lights will or will not effect enough whether you are in a dark room or not. Simple as that.
I have a piece of film that has all kinds of levels of halftones, 1-100%, 20lpi-85lpi, etc.Great! I have what amounts to the same test sheet that I send to people to determine what the are really holding. I have them burn it on a 230 or a 305 and look around the 50-60 lpi section. Some are very surprised. Many aren't holding the 8-10% range. One was losing under 14%.
Quote I have a piece of film that has all kinds of levels of halftones, 1-100%, 20lpi-85lpi, etc.Great! I have what amounts to the same test sheet that I send to people to determine what the are really holding. I have them burn it on a 230 or a 305 and look around the 50-60 lpi section. Some are very surprised. Many aren't holding the 8-10% range. One was losing under 14%.Hey Dan, I would be interested in that test sheet. I wonder what I could accomplish with 240 watts of UV tubes.
... the results will be looked at through an 80X lighted loupe so the results will be by the good old human eye (with a little help).