The specs of the new GFX100S are out. Five frames per second max, buffer 42 JPEGs or 16 RAWs (more than Pentax K1) at 102 Mpixel per frame. Also has 5 stops IBIS. Weight+size like a Pentax K1. CIPA battery life = 460 (half of K1), no battery grip available however so that mean carrying half dozen batteries in camera bag or in pockets. You buy three Pentax K1 for the price of a GFX100s, and excluding lenses. It look like a good camera, except no grip on a mirrorless camera is IMO a significant annoyance because camera may run out of battery at the time you want to freeze a moment, so with such camera you develop a compulsion of checking battery level all the time afraid of running out of juice at the time you want to take a shot. They (manufacturers) do this kind of cripple design choice purely for business, to protect the other products from being cannibalized. For that the K1 didn't have much to cannibalize in the Pentax camera lineup, that's why Ricoh had put everything they had into it.
---------- Post added 26-01-21 at 14:20 ----------
Originally posted by MJKoski FWIW, now "ancient" GFX 50R tracks moving subjects better with CDAF and the "pancake" GF50mm lens compared to K-1 + HD24-70 WR.
Strange. I've used a GFX50S, beside image quality I wasn't impressed by anything else. As much as I like the Fuji X series for their size, retro look and AF speed, I wasn't impressed by the 50S (50R is the same).
First, I disliked the EVF on the 50S so much, I couldn't use it without removing my glasses so I had to remove my glasses every time I wanted to take a shot, I don't have this problem with the K1, that was the reason why I gave the 50S back , not being able to use it with glasses was a deal breaker for me. The eye relief and EVF experience for me wasn't acceptable for a camera of such price. I would have expected perfect view and handling experience for a camera at $5000.
Second, when I used the GFX50S, I felt like the build quality was on par with the X series, which was a problem for me for a camera that cost five times more than X series, I expected no to have a tilt screen the same as the one on the cheaper X-A or X-T series model! Basically, the tilt display on the GFX50S ($5000) is the same as the one on an X-T2 (I've use X-T2 as well, AF was very quick).
Third, the CDAF on the 50S was like LV AF on the K1, even single shot sometimes missed focus, I didn't even consider using it for tracking anything.
But , the GFX100 series are different, they have PDAF on sensor, this is completely different. However, I don't expect Fuji build quality to be as good as Pentax, I think Pentax cameras still have superior construction materials and sealing, it's just another level, often completely ignored by people.
Last edited by biz-engineer; 01-26-2021 at 06:25 AM.