I've been shooting macro with the Canon 60mm and want to add a 100mm. I figured I'd just get the 100mm F.28 USM but then when I went to buy it I saw that for "only" $350 more I can get the L version with IS. I'll use the lens mostly underwater but may use it some topside for insects or flowers.
Does anyone have any thoughts between the two lens? Is there any disadvantage to the L lens underwater other than the higher price? It would be used in a Nauticam housing. Or should I just stick with the non L version and use the savings for other toys?