Which Micro 4/3 lens should i buy ?

Guy Parsons wrote:

My initial answer is to get the 12-40mm lens, it is just so darn good.

...

Heavily used 12-40mm, hence the bumps at the ends of its zoom.

The 0 mm bump is the Samyang 7.5mm fisheye, used more than I thought I would, a great fun lens and highly recommended.

The 9mm bump is the 9-18mm lens at work, I didn't really need to carry that for the little use it got.

Then the tiny usage above 40mm up to 150mm is the Panasonic 45-150mm, small and light to carry so it is always in the bag for those relatively rare times that I use it.

If I were to be tempted to buy a prime lens (the 12-40mm has killed that lust) then my natural would be the 17mm as revealed by the hump in that vicinity.

Regards..... Guy

I'd say that the "hence the bumps at the ends of its zoom" has elements of non-sequitur to it, in that one might think you got as far towards what was wanted as one could, and in both directions one wanted OUT !  Had you the 7-14 & 35-100 say ready to go --and I mean mounted on bodies, not needing a lens swap--, those bumps might cascade into FLs outside of 12-40!?  --a thought.  (Otherwise, yes, such FL frequencies do often reveal what lens, by being at a zoom end.

(In my case, I've just complemented the agreed wonderful 12-40 with Pany's 35-100/2.8 & 7-14/4, which are on used markets for WAY less than the newly issued Oly counterparts, and are much smaller/lighter (despite the telephoto's having OIS !).  And I got a GX7 to have one ready.  I've done some casual swapping between bodies & lenses but can't say for sure if I see much difference, or preference for E-M5 + IBIS w/35-100 or w/o & OIS of lens.  With its long hood reversed, the 35-100 is shorter than the 12-40 + hood normal.)

-d.

ps : I saw that "LX3" in the photo EXIF...  >> 24-60 eq. from a fine little "camera you have with you", now well aged, and still MUCH appreciated !