modeling a camera

my eyes came on a camera that i had and i decided to model it…
i started with the lens
here is what i made till now :
http://img363.imageshack.us/img363/7912/camrend26iu.jpg
what do u think ?

C&C are welcomed

I think its great. This should have a lot of little detail to show when you are finished. Good work.

update:
added some more details…
http://img267.imageshack.us/img267/8308/casmrend59tv.jpg

any comments ?

Where is the glass lenses?

Looks realy good… Is it possible to get a larger render (and rendering times)? I realy like this project!