Conclusion

The Olympus M.ZUIKO Digital ED 45mm f/1.2 PRO is a great addition to the expanding M.Zuiko F1.2 PRO prime lens series. 

In terms of image quality, the Olympus M.Zuiko Digital ED 45mm f/1.2 PRO delivers outstanding results. It's just a little soft when shooting wide-open at f/1.2, but from f1/4 onwards it's pin-sharp both in the centre and at the edges of the frame. Bokeh is beautifully rendered thanks to the 9 circular aperture blades, whilst vignetting, distortion and chromatic aberrations are all very well controlled. Overall, there's very little to complain about in terms of the image quality.

And happily the same can also be said about the Olympus M.Zuiko Digital ED 45mm f/1.2 PRO's build quality. At 410g, it doesn't weigh too much for a medium telephoto prime, and we found that it was well-balanced in use even on a smaller camera like the OM-D E-M5 II, unlike some of the other PRO lenses. When comparing it to a 90mm lens for a APS-C or full-frame sensor camera, the Olympus M.Zuiko Digital ED 45mm f/1.2 PRO is pretty small indeed. Focusing is reliably quick and accurate, while manual focusing is made very easy by the snap focusing ring and smooth, damped mechanism. 

All of this excellence does come at a literal cost, though - £1199 / $1299 to be precise - making it more likely to be bought by professionals than enthusiasts, who should also consider the Olympus 45mm f/1.8 lens, one of the smallest and lightest lenses in the Micro Four Thirds system and much more affordable than this new f/1.2 version. Still, if you can afford it, then we can highly recommend the Olympus M.ZUIKO Digital ED 45mm f/1.2 PRO lens.

Ratings (out of 5)
Design	4.5
Features	4.5
Ease-of-use	5
Image quality	5
Value for money	3.5