Re: UV light meter
Yesterday I referred back to an earlier discussion noting that there's no great correlation between the UV index (which weights UVB wavelengths heavily and is used to measure the risk of sunburn) and exposure times for alt photo processes, which depend on UVA wavelengths.. But it's not necessary to go back to that discussion to see the lack of correlation between the UV index and exposure times; just consider Paul's observation here that his exposure times remain fairly constant as the UV index varies from 4 to 10.
On Jun 17, 2009, at 11:29 AM, Paul Viapiano wrote:
We were talking about exposing in the sun/outdoors, and the possibilities of measuring the UV for that purpose.