MacroLuv wrote:Very nice macro Mike.
That 180 mm lens gives really fine blurred background. Canon lens?
You photographed it with tripod. Is it any chance to make it handheld?
By the way I've ordered Canon EF 100mm f/2.8 USM Macro Lens. Should I inevitable have a tripod too?

I use a Canon 180mm lens, but if I had to replace it, I would probably go with a Sigma or Tamron 180mm. For US prices (I can't say anything about Europe) the Canon costs twice as much, and isn't that much better. The only advantages to the Canon are being able to not worry about incompatibility with new digital cameras, and being able to use Canon teleconverters with the lens. These are significant advantages, but not enough to justify double the price!
For this shot, shutter speed was pretty fast because there was a lot of sunlight, (I had to look this up) it was 1/160th second. I'd be nervous about handholding the 180mm lens at 1/160th second, but a sharp shot would probably be possible if you were lucky. When I use flash-only illumination for my snake shots, I routinely handhold at 1/250th second, and if I have a good stable hold on the camera, I rarely lose shots to shake. There is a rule of thumb that claims that your shutter speed should be 1/(focal length) or less. For myself, I don't think this is very applicable to macro photography, where I think magnification is probably more important than focal length. I still find that I can usually get sharp shots at 1/250th second, though.
A tripod is useful for a lot of macro shots. Different people have different techniques. For insect shots, I _USUALLY_ prefer to handhold. This makes stalking and camera positioning a LOT easier. It has disadvantages, though. It doesn't work with longer exposure times. And if you want to stack photos using software as many people are doing here, hand-holding would make it almost impossible to get repeated shots at the appropriate distance to stack. To actually answer your question, rather than talk about it, I don't think a tripod will be required for your 100mm macro, but I think there may be times when you'll really want to use a tripod for a particular technique or shot. Since you are serious about this stuff, I recommend you consider a tripod and ballhead as a future purchase if you don't already have them. They aren't essential, but will give you more options. This is especially true if you get into landscape photography or get a larger lens for wildlife photography!