Kwok, did you look into the key-chain cameras? They go for about $13 and weigh about 4gr. People put the on small planes with no problem and on glasses so you can film your plane yourself. Search ebay for 'keychain camera'.

 

I bought one of those Keychain cameras, and I'm amazed at how well the video and audio come out. I bought mine on eBay from "auctioninchina" and it took about 3 weeks to get here, but it does work very well. One note - it DOES NOT have any memory built in, so you'll have to get a microSD or microSDHC chip for it. His ad doesn't say, but the camera will run with either the newer or older tech chip. Maybe I'll take a short video and post it later, if your interested.
Okay, off-topic hijacking is done.

 

I'll definitely order one of those, in the future. The flash cost more than the camera, so one of each for testing is no problem. It uses alot of memory. Heck if I had this in a plane, I would be more worried about loosing the flash than the camera. [To tell you the truth, I am testing ordering from Hong Kong, too. I've got a dial indicator set coming, too.] I thought this one has a better lens, because of the case (which is really cosmetic). But it looks like the same pinhole lens. This one has the 3 clips (probably good for car use) and can be used as a web cam. And the separate charger. I don't think it can take still pictures, which I think some of the others can. But it would be tough to align that shot.

-Kwok

 

That's the keychain version.

 

There's also this one, with a slightly higher resolution, (and cheaper even ):
http://cgi.ebay.com/ws/eBayISAPI.dll?Vi ... K:MEWAX:IT

Which one should I get?

 

That's the problem. You never know what you are going to get . My guess is the 1st guy didn't update his description, but who knows. :?

Oops, just saw the 2nd guy is a "Top Rated Seller", so that's a plus,