Unless there is a specific need, ~I think the money is better spent on glass. I had the iv then Rv - I am not sure I didn't like the iv more. Either way it is marginal.
I share your sentiment about glass, that's what makes the picture after all. But I am surprised you find so little "marginal" difference between these cameras.
#1. You can use small RAW on your A7r5, which should give you very clean 26MP files. And in crop mode, you also get 26MP files - so this is almost like an in-build 1.5x tele converter, giving all your lenses double duty. Especially for events photographers this should be great.
#2. It's the new IBIS sounds like a game changer.
To me, these two are the main reasons to upgrade from A7r3 to A7r5. Could you please comment whether my expectation regarding #1 and #2 are in the right ball park?
Hi
Sorry, only just saw this.
OK, #1 - I don't use S and M raw, nor APSC mode, so I can't really comment. APSC mode is just cropping, and without reading back I think (hope) I mentioned cropping as one of the advantages if you need that in your work. Cropping capability might be the best reason to change in fact. M raw I don't use because most of what I read says there is a penalty in IQ. I don't care about file sizes, so I'd rather just shoot in raw and have done, YMMV
#2, IBIS. I don't know about this - Sony IBIS isn't the best generally, the A7Rv seems like it may be a little better, but not massively noticeably so for me - but I haven't scientifically tested it, so again you might find it more useful. I was shooting for a while with the Hasselblad X2D. Now THAT has 7 stops plus of IBIS - it is incredible what you can hand hold, and is really clearly observable. The A7Rv doesn't feel the same.
I think my main point is that people (me too) lock on to the spec differences between the LCDs and EVFs, and the fancy screen - but whilst they are of course nice improvements, they don't materially affect the user experience for me, and they certainly don't affect the image output. When I look back over images from my A7iv and this A7Rv, there is nothing that makes me prefer the v images when viewed globally - in fact I think the colours are slightly nicer out of the iv.