Quote: As far as MF it has FF beat with resolution but as far as low light goes until MF can compete with 24 f/1.4, 30 F1.4, 50 F/1.2&1.4, 85 F/1.4 and 200 F/2 low light performance still lies with FF.
That's not relevant to a large number of people, because we shoot in low light for DoF, as in sunsets and sunrises. A lot of us din't care about low light performance in terms of wide open, we care about low light performance at ƒ5.6 or ƒ8. People seem to forget, many of us are not interested in shooting much at large apertures. The technical limitations of doing so, in terms of narrow DoF make it unattractive. For us, ƒ1.8 is rarely used even if we have it. For most of my images even ƒ2.8 is un-acceptable. These general types of blanket statements are usually dismissive of whole portions of the photographic community, acting as if the niche is the norm.
You have a good point though, in that so many FF shooters are so tied to the narrow DoF thing, they simply aren't candidates to move to a larger format. 35mm is the sweet spot, for that type of shooter.
Read through this thread, you won't find many complaints about no ƒ1.4 lenses, but then, these are MF shooters. Not everyone even wants to shoot MF. Some guys think MF should be 35mm only better, and that we all strive to shoot in total darkness with fast lenses. And that is an unwise assumption. Read through this thread and what you'll find is a completely different mindset. Lets not forget, the guys pushing the whole FF mindset, razor thin DoF with fast lenses, don't make MF cameras. FF is their top of the line. They are using their resources to make sure most FF shooters never understand the need for FF. It would cost them business. True MFers are finding their way, despite their efforts. And true FF shooters are still acting like MF is just FF but not as good. <cough> morons <cough>.
Used the way MF shooters use it, the Pentaxz 645z easily surpasses the low light performance of the hi res FF cameras.
https://www.pentaxforums.com/forums/48-pentax-medium-format/87027-post-your-m...hotos-414.html