SEATTLE — If you spot a pair of friends snapping photo after photo after photo near the corner of 4th and Jackson in Seattle, you'd think something out of the ordinary is going on.

A movie star?  An unusual cosmic event? Perhaps a rare bird? None of the above.  Bruce Qu and his friend Gordon Wong take pictures, thousands of pictures, of buses.

"So we come here every day," says Gordon Wong, a self-proclaimed "bus fanner."

Ok not every day, says Bruce. "Yeah weekdays between Monday to Friday, every afternoon from 4 to 6 o'clock."

He says he has close to 20,000 photos, all of buses.  Gordon has a mere 10,000.

They track the bus routes and times with their smart phones. Then they try to spot irregularities...in the color scheme, the lights, even the schedule itself.

"I think it is. Let me see. 120. It's the 120. Normally won't see a 120 at this place," says Gordon, as he snaps photos of the misplaced 120.

They met, naturally, when they noticed each other taking pictures of buses on a Shoreline street corner.

Gordon recalls the moment he spotted Bruce. "Is he taking pictures of buses? Because I saw his camera aiming at buses."

They both fell in love with buses, growing up in China. And they both started taking pictures of buses at an early age.

Drivers notice, sometimes waving or smiling.

"I'm amazed that they know the lingo, the route run, the system, better than most of the operators," says Driver "Metro Mike" Mackay.

But what do their friends think?

"Some of them said we are crazy. Yes," says Bruce.

Ok, so that's friends. But how about family.

"My parents think I'm crazy," says Gordon.

Bruce says his mom just doesn't understand. But they understand each other.

So the next time you're on a bus, smile. You just might be on camera.

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