RE: continued solarplate notes

[Loris Medici <mail@loris.medici.name>]

Hi Christina,

It depends on time (UV level peaks between 11:00AM and 01:00PM), season
/ weather and how north and south you're located...

Currently the UV index here in Istanbul is around 4.5 at max. -> it can
go up to 11 in mid-summer (see http://www.enka.com/weather/ - this
particular station is located 200 yards away of my house). I guess UV
index doesn't go above 3-4 right now in Montana; this is pretty weak. A
definite test can be made by using a light integrator.

Regards,
Loris.

-----Original Message-----
From: Christina Z. Anderson [mailto:zphoto@montana.net] 
Sent: Monday, April 09, 2007 5:44 AM
To: alt-photo-process-l@usask.ca
Subject: Re: continued solarplate notes

...

Considering that Mike Ware says the sun is several times more powerful
than 
UVBL (anyone know the exact comparison?) this is enough proof to me that

there is a quite wide range of acceptable exposure and that the ratio is

where it's at.

...