I'm looking at getting a macro lens, and I'm having some trouble deciding between a Nikon 105 mm f/2.8 with VR, and a Sigma 150 mm f/2.8. Optically, the Sigma probably kills the Nikon 105 mm (with or without VR), and the Nikon is no slouch. However, the VR is surely going to help in low light if you're in a shady area and want to photograph a bug or something. Comments about the Nikon 105 mm: - It has VR-II. - It's quite sharp with no huge flaws. - Can be used as a portrait lens if necessary. - Can probably be used more often in general photography, maybe even as a walk-around lens if I'm feeling a bit daring. - I have a Sigma 24-70 mm f/2.8 quasi-macro lens (1:3.8 or something) which is fantastic, but a 105 mm isn't much longer than 70 mm. Maybe getting the 150 mm just to get less crowding of focal lengths is a good idea(?). Comments about the Sigma 150 mm: - Optically better than the Nikon, but I really don't think this is the deal-breaker. - Longer reach than the Nikon. I don't own a telephoto right now, not that I require one very often. But if I need a telephoto, I guess this can act as one. The reach will also be better for macros, although it's too long for flowers (which I don't care much about anyway....I'm interested in small critters). For small insects and such, this lens would surely be better (right?). - Probably can't be used in many situations other than as a macro lens. How often do I do macro photography? Well, I LOVE it, but I don't do it very frequently. - This may end up being a dedicated lens with very few uses. Maybe it's good for candid shots of people because of its reach? I don't know. - Built like a tank (ie: it's heavy). The Sigma is appealing in so many ways, but I have always been fixated on getting the Nikon 105 mm with VR. I can't find any store that has both lenses in stock for a comparison, so its really difficult for me to see the difference in focal lengths, and whether the Sigma 150 mm can be handheld (people have said it can be quite easily, although it does get heavy after awhile). I'd be very happy with the Nikon and would probably never regret it, but the Sigma now looks tempting if I was strictly looking at macro.