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still only ok, looks like the sky has blotchy artifacts so not the best example if truthful  ,i used m43 since the g1 panasonic and over 100000 +images problem is to match m43 reach, with sony it has to either crop sensor ,which is the best way or to get like for like image of a 100-400mm 5.6 -6.3 on m43 sony  needs to make a 200-800mm f11-f13  zoom which i doubt would sell to well although canon make a 800mm f11 for their rf cameras  ,to get 800mm on  sony in full frame  you need to use crop mode or t/c on the 200-600 400mm f2.8 x2  or 600 mm f4 or the 100-400mm sony with x2 , The tamron 50-400mm is comparable to the pl 100-400mm because they are both the same f/l put a tamron 50-400mm on m43 and voila you have a 800mm fl,just that the tamron on f/f gathers twice the light or 4 x the surface area of light collected on full frame but half the reach on full sensor,its all about signal going in ,  that makes full frame have an advantage .