Samples

http://www.photographyblog.com/previews/olympus_m_zuiko_digital_ed_12_100mm_f_4_is_pro_photos/

In stock, but last one

https://www.amazon.com/Olympus-M-Zuiko-Digital-12-100mm-Black/dp/B01LWC5IMC

http://martingallego.blogspot.ru/2017/01/prueba-mzuiko-12-100-f4-is-pro.html

Review

It's not perfect lens. Both centre and edge sharpness are very high throughout most of its focal length range, but performance drops off a little at the 100mm focal length, where you need to stop down to get acceptable results.

http://www.photographyblog.com/reviews/olympus_m_zuiko_digital_ed_12_100mm_f_4_is_pro_review/

Review

http://www.imaging-resource.com/lenses/olympus/12-100mm-f4-is-pro-m.zuiko-digital-ed/review/

Patent text - http://www.freepatentsonline.com/20170123193.pdf

I'm really interested in this for video with F4 constant and IBIS, especially with the clutch mechanism.

However, I have the olymus 12-40 and use ex-tele on a g7 , and while the clutch mechanism is great in theory for using with a follow focus, the focus throw is only 90 degrees, and for documentary/event, 80% of the time you will be in the last 20 degrees of that throw which makes focusing pretty tricky. (To mitigate, I can change to smallest focus gear I have and add a 110mm focus ring but this makes it a pain to get on and off a rails system for lens changes).

Long story short, does anyone know what the focus throw on the barrel is and if its less sensitive than the 12-40mm due to it being more telephoto at the long end?

Thanks bjarne! Currently weighing up the pros and cons of this lens on g7 vs buying a fz2000.

http://christofferkrook.com/blog/2017/12/5/olympus-mzuiko-digital-ed-12-100mm-f4-is-pro-the-ultimate-travel-lens

Experience

https://www.mirrorlessons.com/2018/03/10/experience-with-olympus-12-100-pro-zoom/