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 Forums New Arrivals
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12-12-2006, 10:17 AM
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Exposure calculator!!!
Please Please Please
Is it anyway to find somewhere an exposure calculator... somewhere on the net... I guess I can just print it on a transparencie and it will do the job... I've been looking for one, but no one want to ship to canada(ahahah) and cosmexgraphics... don't have it anymore, hmm 
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12-12-2006, 10:21 AM
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Quote:
Make sure you put solids and different %'s of halftones as well as different size stroke lines.
__________________
"My hate for Phoon is what gets me out of my cardboard box every morning." ~ B-DUD "I'm batshit insane." - Steve W "I'm a fluffer." ~ Droid to the B
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12-12-2006, 10:29 AM
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someone should make a generic file and upload it to the premium section
__________________
I started 25 years ago with a stolen Kinko's card and a shitty bicycle. If I can do it you can too. - Kozik For the record, I also enjoy snack cakes and receiving fellatio. - ENM Reading "The Art of Seduction" saved me a lot of money on Roofies. I was stuck in this giant RV with Keith Richards and he kept tickling my ass and trying to toss my salad. - B-DROID IVARTON::POSTERS::PHOTOS::CONSUME::SPROCKETS
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12-12-2006, 10:40 AM
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The problem with making a generic one is that the good ones have specifically graded filters on them, representing various percentages of light reaching the emulsion. That's how you really determine your exposure time.
__________________
Popfuel - Toronto's only membership-supported screenprinting studio Check out the Popfuel Website at http://www.popfuel.com/ -- 'Professionalism is for offset printers.' - Andymac
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12-12-2006, 10:46 AM
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Fantasygoat knows everything. From now on just PM him all questions.
__________________
"My hate for Phoon is what gets me out of my cardboard box every morning." ~ B-DUD "I'm batshit insane." - Steve W "I'm a fluffer." ~ Droid to the B
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12-12-2006, 10:56 AM
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a basic home made one with different size halftones and line will help learn what level of detail you can pull off and if you have good on contact, you'll be able to tell if you are exposing with too little light if the detail is falling out. too much light is harder to tell but it will mean you'll lose really thin lines as light is refracting around the film and getting under the black. But the real joints are nice that fantasy goat is talking about as they help dial it in more exactly. I'm using one right now actually. Without one, you stil gotta do a strip test.
__________________
___________________________________________ ------------------------------------------------> "bewing an artist is easy,. sell paintings for 300000 grand and get a gelleray to pick you up" -Dance Party
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12-12-2006, 11:20 AM
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Yeah i just printed some black to white gradients and differnt dot sizes and went
10 min 5 min 2.5 min 1:15 etc.... helped me figure out my exposure times are 2.5 to 3min
__________________
I started 25 years ago with a stolen Kinko's card and a shitty bicycle. If I can do it you can too. - Kozik For the record, I also enjoy snack cakes and receiving fellatio. - ENM Reading "The Art of Seduction" saved me a lot of money on Roofies. I was stuck in this giant RV with Keith Richards and he kept tickling my ass and trying to toss my salad. - B-DROID IVARTON::POSTERS::PHOTOS::CONSUME::SPROCKETS
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12-12-2006, 11:37 AM
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I will do an home made...
and yes, someone should make a generic file my time should be around 40sec (transparencies, UV light)... with a so short time, I guess that an exposure calculator shoud help me... Do you know wich one exposure calculator is the best? Autotype? any preferences?
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12-12-2006, 11:56 AM
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Autotype works good, but is expensive ($80?)
Crosshair was talking about a cheaper one ($10-15?) he got, maybe from AWT? - there is a reference or two re this one in the forums. Although they are nice, I think if you are armed with a good detailed OPAQUE film (get soemthing from an offset printer/digital service bureau) and a piece of ruby or black paper, a watch, and half a brain you can do a good job of figuring out. Especially with a fixed lamp distance. I published a story in the SGIA tech journal called Exposure Road Test. I have a pdf of the story, and a pdf of the film you can print out. If someone can host both for me, we can put a link up to it. It's basically about the different results you get from using different types of film - photocopy, laser, inkjet, oyo, imagesetter, etc.
__________________
Andymac services www.squeegeeville.com equipment www.tmiscreenprinting.com Todo es empezar.
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12-12-2006, 12:09 PM
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wedge step test
like andymac was talking about, which I will be doing today at my shop -loco
__________________
Gotta get behind the mule and the morning plow -Tom Waits
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