Business logo and watermark

LatFoto or LatFoto with graphical symbol

No

I need a classic clean brand/logo from one word "LatFoto" and maybe with some graphical elements. The logo will be main corporate identity.
Should be effective in full colors as well as in black and white.
Should be light and modern.
Should not lose its look and feel if reproduced on different objects and different backgrounds, on white/black or in different sizes (as well in small size) and text should be easy readable. Should be easy understandable on small size, that's why it can't contain small details.
If logo had 3D effects/shadows, then in 2D they should be effective as well.
It is welcoming some grafical elements, hidden message or some interesting concept. Maybe something typical from photography like this https://lh4.googleusercontent.com/-F-YnCqNVnuw/TwWGr5JbaMI/AAAAAAADNeY/TrGsc_lP7QE/s271/l_957217.jpg
But please don't make another copy (variation) of Picasa logo. Nothing to "feminine", many wedding photographer logos have curly/floral design elements.
I'm going to use it as a logo for website (http://latfoto.lv) about photography, business cards, CD, advertisement and also use it as a watermark on color and B&W photos in transparent mode. Should not be too aggressive or vibrant, but I don't want the design to be dark. Now I use this:
http://gallery.photo.net/photo/8937693-lg.jpg
but other solutions are welcomed. I see popular variations are like this:
http://cdn.c.photoshelter.com/img-get/I0000U61MN8OhbUE/s/900/900/hungary-budapest-F026709.jpg
Maybe there could be two variations of logo - one on the dark and one on the light background, but it should be universal any way - it will be used on photos (on light and on dark)

Photography