SPEEDBALL EMULSION BURN TIME FULL
SPEEDBALL EMULSION BURN TIME PORTABLE

How much high noon brightness varies over the year depends partly on your latitude - also your altitude. Took me 3 screens to get the time and distance right. Looking through my data, it looks like an overcast day in June was about a stop brighter than a clear day in December. Why not simply use an exposure meter? That's what they're for. Then you can adjust your exposure as necessary according to the graph.īut, of course, the radiation sensor on the weather station is really just an exposure meter. If you've used it successfully in the area you're discussing, you might check if there's a local weather station with graphs like the ones I just showed.

It appears you may be looking for information on exposure or burning screens. Bu i tried different times of exposure from 8 to 15 to 20 minutes, and already with 8 minutes the image will appear on the screen.

SPEEDBALL EMULSION BURN TIME PORTABLE

Generally, when it's overcast, the graph is spiky and significantly lower than than smooth curve, but it can go higher, as it did briefly around noon on this day.Īnyway, the sunny 16 rule is just a rough guideline. This lightweight and portable LED Lamp is a must for any screen printer Compatible with any photo emulsion, Speedball's LED Lamp delivers a consistent exposure every time along with a significantly longer life span than the traditional 250W photoflood alternatives. I dont know if its the emulsion that is the problem, or the screen, or the exposure. Best Sellers Rank: 123,569 in Home ( See Top 100 in Home) 8,801. Place of Business : GRAND RAPIDS, MI, 49507 US. Manufacturer : Speedball Art Products Company. Anyway, with no clouds, the graph forms a smooth hump during the day. Product Dimensions : 6.35 x 12.7 x 16.26 cm 600 Grams. I am using a UV light and nothing happens. One person found this helpful Helpful Report abuse Frequent Prime Works well Reviewed in the United States on DecemVerified Purchase Works great. I am using Speedball photo emulsion and I cannot burn my image to screen. The solar radiation chart is the one you should look at. They are supposed to average three hours, so you'll want a spare handy anyway so you're not suddenly in the dark. I bought the Diazo speedball photo emulsion, added water, shaked it up, stirred it as well, poured into the larger bottle of glue stuff, shaked and stirred again, it did change color, but it is just really blue compared to every pic or video I have watched, which shows a really green color. Here's a link to my weather station, which happens to have solar radiation and UV sensors. You can see this very well by looking at weather station charts.

SPEEDBALL EMULSION BURN TIME FULL

If the cloud cover is thin or absent directly in front of the sun, you have nearly or the full strength of the sun illuminating the scene plus the bright clouds illuminating the scene as if they were a reflector. Overcast can actually be brighter than clear daylight.

Speedball emulsion burn time