I sold my Olympus gear and went over to the Nikon side - two things I miss however : my 12-60 and my 50-200. Both lenses were perfect ... If it wasn't for their SLRs, I would still be with Olympus. The lens quality is just ... awesome.

Sharp - extremely sharp / build quality

none

The 12-60mm is an awesome lens. Very comparable to the 14-54mm. It is heavy and weather sealed. It looks, feels and performs like a pro lens. As far as focus well what can I say. It is fast and accurate, faster than the 14-54mm. Maybe but if so not by much.

Tough, Sharp, Fast, Weather sealed; Great range of focal length, A perfect walk around lens, splendid in low light

None that I see; If you don't want a heavy lens then maybe that could be a weakness

This by far is the most versatile workhorse in my stable of several SWD and Standard Zuiko lenses. For a professional wedding photographer this fast focusing lens with its wide focal range combined with a closeup distance down to 24cm at all focal lengths and low light ability is capable of covering...

The best combination of image quality, handling and focal length range of any zoom lens I have ever used. Although the 12-60 zoom is heavy the lighter and equally high quality 14-54 zoom does not possess the excellent range and handling of the larger lens.

Consistent Output; Durable; Easily Interchangeable; Quick Focus; Rugged; Sharp Focus; Strong Construction

Heavy

Took an age to find one of these at a reasonable price. Not disappointed. Excellent, free, next day delivery.

When I upgraded to the E5 from the E 520 I decided to up grade to this lens for my son's wedding since I got drafted to be the photographer. I couldn't be more sttisified with the combo.

Very highly recommended but price might be a little steep for some

The resolution isn't very high; solid build; lightweight; fast focussing and quite versatile

Slight but hardly noticeable distortion at the widest angle

A great all purpose lens. It is fast and takes tack sharp pictures. I use it on both the E-5 and the E-620. By far one of my favorite lens. Wish I had purchased this a long time ago!

The reviews of this lens all rated it highly so I was reasonably confident that this would be better than the lens that was bundled with my ancient E-500 (as it should be for that price). It is noticeably better even through the viewfinder.

I purchased this lens before the 12-40mm lens was released to have a walk around lens for my OM-D E-M1. The zoom range and f- stop combination is ideal for most of my photography, landscapes and informal portraits. The one star reduction is for autofocus.