>>3976044>If you need more low light performance with the subjects you shoot on the 90D, then you want to trade up to an R5/R6 or 5DIV. If the 90D has its subject matter covered and you just want even more detail for landscape/studio, and/or FF to cover some lower light stuff, the 5DsR will deliver.I honestly rarely have any low light performance issues with the 90D, if any. It can handle higher ISO ranges just fine. It currently is my go-to camera for Animal/Nature and Travel photography, where it mainly is purposed for (that and action photography).
The 5DSR would fill the gaps in the process of full landscape / architectural shots and studio/controlled lighting shots for me. So I would think the 5DSR would fit right into these purposes. And it seems its shots are razor sharp with the right lenses, and is still used well within the professional architectural world as far as I have read and seen.
The only thing I'm unsure of is the 5DSR's performance when doing outdoor portrait and street photography, especially compared to the R5/R6, with al the technical bells and whistles. But I'm not a fan of using the EVF or touchscreen and honestly the choice would rather be the R6 for the budget so I would be stumbling back to 20MP.
The 5DSIV ticks all the boxes here as well, but there it lacks the full FPS my 90D would give (7 vs 11) for Nature photography.
So it's:
90D + 5DSR: High Resolution, coverage of many photography styles, might be lacking in some + older tech.
5DSIV: All Purpose, but not perfect for Animal/Nature photography
R6: Latest Gen, Lower Resolution, mirrorless, high fps, no OVF
R5: Latest Gen, like the R6 but High Resolution, high cost
Ideally it would be the R5 but I'm not a professional so I can't really justify the cost.
My main use is Nature, Architectural, Street and Travel photography. With the occasional Portrait and Studio work.
