I had one in 2013 but I was not convinced by it. Retrospectively, I think I had a problem with my workflow, using an early version of DxO optics Pro.
I bought a 12-40 PRO zoom, then switched for the 12-100 and was satisfied with them when shooting at 12mm.
Recently, I wanted a smaller gear than my bulky E-M1 III + 12-100, and better for stills than my E-PL9. I found a cheap PEN-F, and as I was totally charmed by the 17mmf1.2 (on the E-M1) and loved this focal, I bought a cheap 17mmf1.8 for the PEN-F.
So what ?
Finally, I wanted to be able to shoot wide landscapes with the PEN-F. So what else than the 12mmf2 (a Loawa 7.5mm is fine but not equally versatile than a 12mm).
I found that a short (100mm) "rapid nodal plate" is fine to align the entrance pupil with the rotation axis of the tripod head :
Panorama setting for PEN-F and 12mmF2
I did a short try of that with an approximate estimation of the pupil entrance
Panorama with above gear
As I have a bank of similar shots of almost all my previous and current lenses, I wanted to compare the 12mmf2 with the PRO zooms, at their best aperture near f5.6 :
- left : 12-100mm 16MP
- center 12-40mm 16MP
- right 12mmf2 20MP
Center
Left
Right
IMO, center is similar, edges are a little better with the prime, the 12-100 is a little better than the 12-40. I could not forecast this result !!!
"Soyons fous" : what about 80MP high res (with the PEN-F). IS this lens able to resolve such a resolution ?
So let's compare the resized 20MP->80MP ORI file with the 80MP ORF, both processed by Topaz Denoise AI
Center
Right
2/3 Left from the center
The answer is yes from the center to the 2nd third, not so much at the edge, but you gain absence of moire and less noise
If the price was high several years ago, it's not so true any more today, and the value is now very good.
What surprised me is how it compares to the PRO zooms.
Bonus tips : I reprocessed a shot with my first 2013 lens and you know what ? It's not as good at all. Not the same aperture (f4.5 vs f5.6) but it can not be the full story. Mystery ! Did Olympus improve its manufacturing ?
2013 lens (left) versus 2020 lens