Originally posted by todd Resistance was once again futile. Congrats!
Do it... Do it... Do it... (I'm just writing what I hear the little LBA demon on your shoulder whispering in your ear... Oh and I happen to agree...)
Don't listen to Todd/LBA demon.....you only need one 43...
to slow down the process.... go looking for an early 43.... say serial number under 7,000.... that way you get the special leaded glass version (now the arguments can begin)
I believe it has 7.34% more pixie dust.
Also (on a more serious note) I found that by adding a Raynox 150 to the 77 I no longer ever used my Tamron 90 (I'm not a big macro person) ....... so worth considering in lue of your 100......the raynox easily fits in a camera bag so it's always with you.