Originally posted by Winder YES the GFX is designed for the 43.8x32.9 sensor. There is no way to put a larger sensor in that body.
As far as I am concerned that is a dumb move by Fuji.
It is just a matter of time till sensors larger than 43.8x32.8 will become commonplace, just like it took only time for 36x24 sensors to be pretty commonplace (and the latter evolution from APS-C to FF as the norm for advanced enthusiast cameras is not over yet).
Originally posted by Winder Its a good move by Fuji and gives Fuji fanboys a step-up option that beats Canon/Nikon/Sony.
Fuji could have had that temporary "win" just as well by using their current sensor but a bigger mount for future growth.
As soon as Pentax releases a digital 645 that does not have a crop sensor anymore then Fuji will be lagging behind again.
Originally posted by Winder The GFX is a FF medium format sensor and the 645z is a crop frame medium format sensor even though they have the same size sensor. You can't look at it that way. It makes no sense.
It makes sense. A small sensor in a small camera does not crop. The same sensor in a bigger camera becomes a "crop sensor", making the camera a crop camera as well. I think we should agree to disagree on that topic.
Originally posted by Winder The K-1 with pixel shift will still have some advantages over the GFX, but the GFX is aimed at portrait and wedding photographers and Pixel Shift is of no value to that segment of the market.
Fair point. But Fuji has still unnecessarily limited the potential of their camera by using a "small" mount. They could have started with crop lenses (much like you can use APS-C lenses on a "135 format camera" with an APS-C sensor) if weight and size are somehow priorities. Having a bigger mount that you don't exploit does not significantly add to the weight and size of a lens.
BTW, size and weight of many lens designs are largely determined by how "fast" it is, not so much by the image circle size it supports.
Originally posted by Winder The GFX has a sensor that is 70% larger which, as the 645z proves, is a substantial increase over 36x24mm.
It is just a 66% increase.
As Zack Arias all "educated" us, even a 125% increase (from APS-C to FF) is "insignificant" and only people with problems care about such minute differences. Now an increase of 66% should justify leaving the well-cared for FF market for a new Fuji product? That does not make sense, does it?
To be clear, I'm not criticising you or your position. I'm just arguing that Fuji has same back-pedalling to do if they want to convince people that their camera has any IQ advantage of an A7RII, say (just to name another mirrorless).
Originally posted by Winder Hopefully Ricoh has a true 645 coming in the near future with some improved glass. Maybe Ricoh can implement IBIS in the 645 line and add pixel shift. Ricoh needs to offer a full sized 645 sensor.
Yes, all very good points that would leave Fuji in the dust, AFAIC.
Originally posted by Winder The GFX is 1.7x the size of the K-1 sensor and 3.9x the size of APS-C.
Sure, all your numbers are consistent with the ones I provided. I just used the more common crop factors (instead of size multipliers) and reciprocals to indicate the upgrade from a smaller sensor to a larger sensor.
Last edited by Class A; 09-25-2016 at 11:30 AM.