starlight exposure unit + emulsion type (exposure times)

[Mr Tees!!]

...nope, 40 sec works for me across all counts. I will add that as an extreme exception, the other day I burned a 40-mesh and increased the time a bit, only because the coating was quite a bit thicker than the standard. Still, I think I only went to 50sec and the image was just fine.

...Now granted, I'm not the guy breaking out the microscopes, densitonomers and what have you. What I DO know is that, 40 seconds, paired with the proper mesh selection, gives me nice, durable, screens with halftones better than I have ever achieved before with fluorescent units. And, in a fraction of the time.

[ericheartsu]

what's the difference between the starlight and the STE II exposure system?

[tonypep]

...nope, 40 sec works for me across all counts. I will add that as an extreme exception, the other day I burned a 40-mesh and increased the time a bit, only because the coating was quite a bit thicker than the standard. Still, I think I only went to 50sec and the image was just fine.

...Now granted, I'm not the guy breaking out the microscopes, densitonomers and what have you. What I DO know is that, 40 seconds, paired with the proper mesh selection, gives me nice, durable, screens with halftones better than I have ever achieved before with fluorescent units. And, in a fraction of the time.

Sometimes that's all you need to know!

[dirkdiggler]

what's the difference between the starlight and the STE II exposure system?

starlight in the back and led bar in the front.  that's it basically.

[ABuffington]

For anyone wanting exposure times run a step test.  No matter if you have the exact same exposure unit or not.  Why?  Are the ambient conditions the same, temp and humidity?, No it's different everywhere, run a step test.  Does everyone coat the exact same emulsion thickness? No, so run a step test on your coating technique.  Did you dry it for the exact same time in the same conditions? No, run a step test.  Are you using the same mesh?  You know the answer.  Or substitute an exposure calculator.

Link to perform a step test:  Learn it once and you will always have well exposed screens.

http://murakamiscreen.com/wp-content/uploads/2012/07/Step-Test-Instructions.pdf

AL