Olympus mZD 100-400mm f/5-6.3 OIS lens

introduction

announced July 2020
35mm longer and 140g heavier than the similar Panasonic Leica DG 100-400mm ASPH f/4-6.3 lens which starts at f/4 not f/5 but it is $US300 cheaper it will be interesting to see how they compare optically but reports suggest the Olympus is sharper and it has the advantage that you can use the teleconverters with it
20mm shorter and 150g lighter than the Olympus mZD 300mm f/4 PRO lens which could get to 420mm f/5.6 with the MC14 and has a better OIS, a MF clutch, presumably better optics but is less versatile without any zoom.
bokeh shows significant onion-ring appearance so avoid out of focus specular highlights if bokeh is important

100-400mm f/5.0-6.3 (200-800mm in 35mm full frame terms)
21 elements in 15 groups (2 super HR, 4 HR lens, 4 ED lenses)
9 rounded aperture blades
close focus 1.3m giving 0.57x magnification
no MF clutch
72mm filter
IPX1 Rated weathersealed - same dustproof and splashproof performance as the M.Zuiko PRO lens series
3EV IS image stabiliser BUT 5-Axis Sync IS is NOT supported
OIS on/off switch (when OFF, uses camera's IBIS if this is on)
zoom locking switch can lock at only 100mm focal length
focus limiter 1.3m-6m and 6m to infinity
tripod mount
206mm long, extends on zooming by 60mm
83mm / 3.3in diameter
1120g w/o tripod adapter
$US1499
compatible with focus stacking
compatible with M.Zuiko Digital 1.4x Teleconverter MC-14 or the M.Zuiko Digital 2x Teleconverter MC-20