I'm curious how tolerable the vignetting might be with it.

http://www.bhphotovideo.com/c/product/519346-REG/Raynox_HDP_7700ES_HDP_7700ES_37mm_High_Definition.html

Hi Matt,

These threads are not about the 3X, but you may find some helpful info on vignetting, etc.

http://www.dvinfo.net/conf/showthread.php?t=89452&highlight=raynox

http://www.dvinfo.net/conf/showthread.php?t=105673&highlight=raynox

http://www.dvinfo.net/conf/showthread.php?t=92312&highlight=raynox

http://www.dvinfo.net/conf/showthread.php?t=46327&highlight=raynox+3x

Now if you want to play around with a really big telephoto, have a look at:

http://photography-on-the.net/forum/showthread.php?t=12341

http://www.ckcpower.com/cvlxlens.htm#MORE%20PICTURES%20OF%20THE%20LENS%20BELOW

I would think you would have to have both the lens and the camcorder mounted due to excess weight on the camcorder lens threads.

Tony