Sigma 150mm f/2.8 Macro
| Focusing distance: | 38cm / 15in |
| Magnification: | 1.0x |
| Filter size: | 72mm |
| Lens size: | ø79.6mm x 142.4mm / ø31.3in x 56.1in |
| Weight: | 920g / 32.5oz |
| Construction: | 16 elements in 12 groups |
| Accessories: | Detachable tripod adapter, Hood, Case |
Eddie's take on it
Sigma's 4/3 lenses are all adapted from their larger sensor full frame and APS-C versions, from an era when Sigma wasn't the manufacturer it is today. Back then, you could expect their lenses to have a mishmash of problems, be soft wide open, have back/front focus, slow autofocus, sample variation, etc.
Well, not this one. As far as Sigma lenses for 4/3 go, this is their best one. Sharp, reasonable autofocus with focus limiting switches. The working distance for macro shots is fantastic, but depth of field at f/2.8 is, of course, very shallow. Overall, this lens is a winner.
If you want to use this on m4/3, make sure you have a camera with PDAF (such as the E-M1/OM-1 series). It will not autofocus on CDAF only cameras.
This lens can already be considered a collectable and it doesn't appear on ebay very often. In fact, you can be left waiting for months for a copy to pop up, so, notable alternatives are the Sigma 105mm macro and the Olympus 50mm macro.