What would be a good choice for a overall filter that I could use for BW photography in say a very sunny place? I like my BW pictures that I took in Tula, but felt I could have done with something to lessen the bright light a bit. It was a very sunny and open space with only wispy clouds in the sky. Or should I have pushed or pulled the ISO? Sorry, I have read a few articles about pushing/pulling but I still don't understand it at all! I am dense sometimes, what can I say! My other question is, I find colour film, even my beloved Portra 160 does not do well for dark skin tones, anyone else have an opinion on this? I feel it leaves the darker skin tones a bit too red, it works beautifully for fair and yellowish skin tones. So if I have a dark/fair person in a scene, it is a bit odd. Just an observation.