Photo - it is easy but difficult, similar but different

Challenge series hosted by _mromka_. Challenges start on Tuesdays.
Photography it's like a science and it's like an art. Everyone can learn this science and everyone can make this art. Let's mix them by means of photography.
Finished (6 challenges)
Entries: 17
Winners announced: 19th April, 2011 GMT
Winner: multiple winners
Your photos taken on Nikon D90 with old manual (Non-CPU) lenses - S-mount, Non-AI, AI, Kaleinar etc. Please, comment what lens exactly was used - name and parameters. It's a must rule, otherwise - DQ!
Entries: 142
Winners announced: 12th April, 2011 GMT
Winner: Yellow Cox
The main idea of the challenge is a bi-colored picture with black and yellow colors only. Please try to use only these 2 colors as more as possible. You know, like a bee or those radioactive warning signs as example.
Entries: 88
Winners announced: 8th February, 2011 GMT
Winner: Downtown
I want to see how people express themselves in way they are dressing. How a clothing indicates their mood and lifestyle. Show me that!
Entries: 77
Winners announced: 24th August, 2010 GMT
Winner: Big Red One
Well, this challenge is inspired by the Convoy movie. I hope you remember that good guy Rubber Duck from late 70's. And his truck of course. And all those monsters of his friends... Thus I wanna see classic American and European trucks from that era but running and working today.
Entries: 31
Winners announced: 18th May, 2010 GMT
Winner: close view
"Cross-stitch is a type of decorative sewing where one stitch crosses another". So you are welcome to share us with final works of this art right now. Also accepted the views of sewing as a process and accessories around our theme.
Entries: 112
Winners announced: 11th May, 2010 GMT
Winner: Beer Bubbles
I believe a lot of dpreview members love it, so show us the whole World of Beer: beverage, caps, glass, bottle, keg etc.