Thats one purchase you will never regret Matt, I wouldn't part with my Siggy 150 for anything.
You will definately see a huge advantage in the distance at which you can achieve great macro images of insects, infact, I'll have a bet with you that you will end up having to back off to fit Dragonflies into the frame, I know I did, it's a legacy of using DSLR style compacts for macro work, you are just so used to having to get really close up to them, but not anymore
As for camera support, this lens is best used with a tripod, it can be handheld but in my opinion the supported shots are always just that bit sharper plus you can take images in poor light conditions/areas, some people may tell you different but I have taken over 5,000 shots with this lens now so feel that I'm qualified to say this.
I'm looking forward to seeing some images from you and the 150 shortly, if you want any advice on best settings for this lens etc.. just give me a shout.
Steve.
