Originally posted by TDvN57 I really hope Pentax sees this as an opportunity to go directly to 645 full frame with the 150mpx sensor. To overcome potential lens issues they can try a deal with Topaz to embed some of their products into the camera's processing.
The 645 full frame 150mpx is an open market waiting for a low cost player.
I'm not sure if Fuji's lenses and camera throat size can go full frame. If nor, then Pentax wild have a real opportunity here.
Just my ten cents...
I suspect that full frame sensor is exclusive to Hasselblad and Phase. The digital 645 were crop MF - both of them. Perhaps there is scope for two MF camera's in the Pentax range - the crop 100mp and the full 150mp - with pricing to match.
The GFX lenses are designed around the 44x33 sensor - not the large one.
The 100mp Sony crop MF sensor is there - and relatively inexpensive compared to the full MF 150mp. Pentax don't need to do a huge amount of work here to make a compelling, SLR alternative to the Fuji and could do this along side developing the full frame successor to the K1. Common AF modules, image processing engines etc - buffers to have a semblance of economies of scale. The K1 is getting on a bit - as is the 645z - why not base them around the 60mp 35mm sensor and 100mp 44x33 sensor and share things like AF systems.
Some redesign of some of the lenses would be in order, and again, not that hard to do.
---------- Post added 01-28-21 at 05:43 AM ----------
Originally posted by SylvainB
Are you ready to pay >20K€ for this ? That would be the low cost of such a camera I think. No idea how the lenses would deal with such a sensor (sensor size + resolution)
No - I am happier paying 5k for a body - not over 20k. Some are though.
How len's cope is dependent on pixel pitch - rather than outright resolution.
The 50mp 44x33 set of up the 645z has quite a generous pixel pitch - so the older lenses don't have to work too hard to resolve them. That's why a 645z will produce clearer, sharper images, than a 5dsr - because the pixel pitch is more generous. The 100mp 44x33 has a very tight pixel pitch - similar to that of the Sony A7R4 - I doubt the older film era lens would really work so well on such a fine pixel pitch. Maybe the 28-45 and 90mm macro would cope - but I suspect the older film era stuff like the 80-160 and 45-85 would fall apart. Interesting Fuji GFX lens were designed around the 50mp sensor - not the finer pitch of the 100mp - I expect some new releases there soon
The 150mp full frame medium format camera has a much larger pixel pitch so the lens won't have to work as hard - so you can use old Hassleblad film era lens and they'll be fine.
Another way to look at is take a 50inch HD TV - up close your eyes can easily see the pixels. Take an 8k 50 inch TV - same size - much smaller pixels - it will be harder to see them up close.
It's the same with MP's and lenses - it's the actual size of each photosite which is important. In the present 645z these are quite larger pixels - similar to than of the 5dmk4 - and larger than the ones that make up the K1 35mm SLR.