Grant have a read of this
http://www.realphotographersforum.c...ule-correct-exposure-without-light-meter.html
relevent salient points are the fact that, firstly, it isn't summer ... Although on a sunny day now I'd have thought you wouldn't need to make adjustments, there may just be some merit in adjusting an extra stop when the sun is hiding.
And of course the sunny 16, whilst accurate for the most part isn't a method for "accurate" exposure as such, it's really a guide to help judgement without a lightmeter.
A lightmeter with the ability to take incident meter readings is the "accurate" equivalent - the sunny 16 rule is just applying a educated guess to what an incident meter reading would be.
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Grant have a read of this http://www.realphotographersforum.com/content/267-sunny-16-rule-correct-exposure-without-light-meter.html
relevent salient points are the fact that, firstly, it isn't summer ... Although on a sunny day now I'd have thought you wouldn't need to make adjustments, there may just be some merit in adjusting an extra stop when the sun is hiding.
And of course the sunny 16, whilst accurate for the most part isn't a method for "accurate" exposure as such, it's really a guide to help judgement without a lightmeter.
A lightmeter with the ability to take incident meter readings is the "accurate" equivalent - the sunny 16 rule is just applying a educated guess to what an incident meter reading would be.