It has often puzzled me when people recommend using the Sunny 16 rule as an exposure guide, what they are really advising. The kind of question on metering some or other specific subject, usually produce a range of responses; ‘use an incident reading’, ‘use a reflected reading’, ’get a good spot meter’ or ‘just use Sunny-16’. This is often thrown up for people new to photography, or for those who have old, or broken film cameras with no meter. It’s all well and good if it’s sunny. And really sunny at that. What use is the sunny-16 rule if it is miserable overcast day in December (I’m in the UK, we have lots of those). My own rule for ball-park numbers in these conditions is ‘wide open at a 30th’. Sure if it’s not quite full sun, or a full sun day but the shadows are getting a bit long, you can knock a stop or two off, but is that really practical if you are new to photography and have no real idea of what a stop’s difference in light intensity might look like? Perhaps ‘just use Sunny-16 and only take pictures in full sun’ would be more appropriate. Or move to Timbuktu. For my money, it gets you out of a hole if you have no meter and you are experienced enough to know what the range of ‘normal’ daylight exposures are, but ‘aint much help if you are inexperienced. Thoughts?