I posted below or above by now about the adapter for my 2100 on my 71 304 not fitting properly. Well I got this $80 digital camera that is not much bigger than two husky pencils for chritmas and I didn't beleive you would even be able to see much with it but I installed it today and I am impressed with the quality of pictures. That is for a $80 camera that is a web cam and it will even take a 40 second video. It will also take 320 pictures just like the one I am going to post. It saves in bitmap so when I change them to jpeg it does loose a little quality but anyway here it is a picture of the adapter. It may not show up to good I don't know. It is overcast here today and this little thing has no flash but can you tell that the adapter is larger than the intake where they meet? This causes about an 1/8 inch overlap of the gasket and it has to squish over it slightly. I'm kind of new to posting pictures but here it goes.
The name brand is aiptek. My mother in law gave it to me for christmas. It came from QVC and it was around $80 but I beleive it was the days special value so it might be around $90 regularly. I'm not sure. They have a good 'website to look it up on. The aiptek web site also has it on there and it is called the "pen cam trio". I am pretty impressed with it for the money and for what you can do with it. The software is about the simplest I've seen also. Only real drawback is no flash so you must have decent light. It really sucks without some light.