Possible accent color, silver or deep navy blue
Circle or Square overall shape
Custom Typography (or something that makes it unique)
No web 2.0
Initials of JMP or JM okay
If use camera icon make it unique and timeless
Incorporate either jmannphoto.com or ishootpeople.com under or within logotype
To be used on signage, vehicle wrap, folders, brochures, collateral, business cards, website, etc.
Kenny Kim: http://www.kennykim.com/
Mike Colon: http://www.mikecolon.com/
Audery Hepburn (Breakfast at Tiffany's)
With all that being said, feel free to be creative. Ask if you need more direction.