In need of film testing service

[Kevin Crisp]

Since several of us have offered to help the original poster at no charge, I think we've got this covered.

[Rick Rycroft]

[sunny11,]

Has the sun lost a stop?

[esearing]

[sunny11,]

Has the sun lost a stop?

My old mentor practiced Sunny 11 at full box speed. Instead of metering at box speed minus a stop that we tend to do with our personal EI. I never understood why people would buy a 400 speed film then overexpose it by treating as 320 or 200. The purpose of faster film was to get faster shutter speeds. You compensate in the development. I think sensiometry is part of the reason.

[MartinP]

Surely any commercial lab will have densitometry equipment and, for a suitable fee, could be persuaded to do the work?

Also the sunny11 versus sunny16 question does pretty much depend on what your longitude is. Plus weather of course -- when I moved to NL I was told that it only rained four times a year, which was worrying until the next piece of information was that each rainy occasion lasted twelve weeks.