The Phase Gods smiled more kindly on me today - I went out with the loaner Mamiya 80mm 2.8 and shot side by side with my P1 kit lens and am now satisfied that I'm not mad, sloppy or picky: the Mamy gives the results I expect, sharp to the edges at all low-mid apertures even if it's a bit softer than my lens on centre wide open. At F5, even where my lens has mostly sharpened up at the edges, and even though mine is worse in the corners than the edges, the Mamiya has a clear advantage at the sides of the frame of these crop shows: (full frame first - I won't identify the lenses cos the answer is clear!)
Finally a centre crop from the Mamiya shot shows me just how much detail will be available when I really start to dig! This with LR default sharpening:
One more question though: why do all my shots seem underexposed by 2/3rds to 1 1/2 stops? The camera meter agrees with my Sekonic but every single shots looks too dark and in some I have had to boost exposure so much that even at low ISO shadow noise starts to creep in.
I know that many popular SLRs have real ISO about 1/2 stop faster than nominal but I'm guessing that the real ISO on the P45+ is 1/2 lower than nominal, maybe more - and this when there's not a lot of sensitivity to play with in the first place. Anyone else found similar?