I've read Bryan's review/recommendation on the CPF, but I've never used one, so I'm just looking for some more information from you all.


Currently I only shoot with the 70-200mm f/4 for equestrian photography and portraits (it's such a great lens!). I shoot outdoors only with natural light. A fair amount of my pictures contains blue sky so I'm thinking the CPF would help out with that aspect.


Is there any adverse affect on skin tone with doing portraits with a CPF? Can I still use my lens hood? Any how difficult is it to remove on a cloudy day or during lower light situations?


Eventually I will add the 100-400mm to my camera bag - I've read on a few sites about buying for your largest diameter lens and using a step down ring for smaller lenses. Has anyone gone that route?


Many thanks for your imput!