I know how difficult is photograph pool...you did great! I'm betting you have nice equipment too...care to divulge so I can live vicariously through you?
You can save one of his pictures and then view the properties of the photo in many image viewing programs. Cameras put EXIF info in the photo, which has a lot of info about how it was shot, what shot it, when it was shot....
By saving one of his photos, I can tell he has a Nikon D5000 camera.
Here's a review on it
http://www.dpreview.com/reviews/nikond5000/
This is the EXIT data that is embedded in the photo.
Original date/time: 2011:04:23 17:41:03
Original date/time subsecs: 00
Exposure time: 1/60
Shutter speed: 1/60.00
F-stop: 5.0
ISO speed: 1600
Focal length: 200.0000
Focal length (35mm): 300
Flash: Not fired
Exposure mode: Auto
White balance: Auto
Aperture: 4.6439
Light source: Unknown
Exposure bias: 0.0000
Metering mode: Pattern
Exposure program: Aperture priority
Subject distance: 11.9000
Digitized date/time: 2011:04:23 17:41:03
Digitized date/time subsecs: 00
Modified date/time: 2011:04:24 00:02:46
Scene type: Photograph
Custom rendered: Normal
Scene capture type: Standard
Gain control: High gain up
Digital zoom ratio: 1.0000
Contrast: Normal
Saturation: Normal
Sharpness: Normal
Subject distance range: Unknown
Camera make: NIKON CORPORATION
Camera model: NIKON D5000
X resolution: 72.0000
Y resolution: 72.0000
Resolution unit: Inches
Camera version: Ver.1.00
Colorspace: Uncalibrated
File source: DSC
Record Version: 2.0
Keyword: billiards
Keyword-1: pool
Keyword-2: tournament