[lytrytyr]

there is no way they could get a huge improvement over the kp

bs! bsi!

[stevebrot]

bs! bsi!

I read somewhere that there is speculation of 28-bit capture to allow amazing dynamic range when coupled with a back-lit sensor from an unknown source, perhaps homegrown.




Steve

[monochrome]

I read somewhere that there is speculation of 28-bit capture to allow amazing dynamic range when coupled with a back-lit sensor from an unknown source, perhaps homegrown.




Steve

Full Frame Version

[taks]

Given the Fujifilm is a mirrorless camera and the K-new is DSLR, wouldn't that necessitate a different sensor or a derivation of the Sony sensor used by Fuji?

Pretty sure it is at the micro-lens level that on-sensor PDAF is achieved. Same silicon and Ricoh spec'd micro-lens would tick the 'new' and 'designed for' descriptions.

To rephrase my question above, can this sony sensor with "Ricoh spected micro lens" made so that on-sensor PDAF would work with the light coming through the main mirror? I mean PDAF sensor below the mirror box on DSLRs works with the light passing through the main mirror right? It seems like it wouldn't be impossible for on-sensor PDAF to work with the dim light coming through the mirror. Is the light just not enough for on-sensor PDAF? Just curious why it doesn't work

[stevebrot]

Just curious why it doesn't work

Shutter is closed?


Steve

[southlander]

I suspect the key change will be the new image processor unit. The current generation unit which no doubt is shared across aps-c, FF and 645 is probably the impediment to further advance of all Pentax cameras. Step up to a latest gen processor with more cores, faster processors, wider data channels, lower nanometer architecture to keep power and heat under control; and suddenly lots of things become possible: better af thru ability to process more sensor points, intelligently calculate and predict subject motions; faster card writes to reduce buffer filling, some AI to improve jpeg engine and noise reduction; 4K video with decent frame rates and better codecs; less clunky ways to rapidly align and better utilise multi frame exposures to improve dynamic ranges. Hopefully USB-C and the option to charge battery via the USB port given USB-C’s higher current capacity.

If they come up with the goods in the new aps-c flagship, then the path to next gen ff and 645 bodies is also opened.

You only have to look at the advances in smart phone processors over the past two years to see how rapidly processor speeds and capabilities have advanced eg this year’s mid range Qualcomm processor broadly matches last year’s flagship and includes dedicated AI module.

There’s been some discussion that Canon were held up for several years (and criticised for lack of innovation) when they hit the limits of their then current processor. They now have their next gen processor and that has allowed them to release the capability upgrades now coming through their mirrorless ff models.

The challenge for Pentax is to shift the organisation from one where optical and mechanical engineering skills were once king to one where hardware/software engineering skill is now the must have skill to remain competitive. Internally this is just as much a cultural challenge as it will have been to recruit and develop software skills.

[taks]

Shutter is closed?

Oh OK thats slightly inconvenient. I knew I was missing something. Thank you for reminding me.

[southlander]

To rephrase my question above, can this sony sensor with "Ricoh spected micro lens" made so that on-sensor PDAF would work with the light coming through the main mirror? I mean PDAF sensor below the mirror box on DSLRs works with the light passing through the main mirror right? It seems like it wouldn't be impossible for on-sensor PDAF to work with the dim light coming through the mirror. Is the light just not enough for on-sensor PDAF? Just curious why it doesn't work

(1) Would need some shutter re-engineering to have shutter parked in open mode.

(2) current mirror only has a smallish semi translucent area equal to AF focus point coverage so some light lost to optical viewfinder but not full frame.

(2) To implement, would need a semi translucent mirror a la what Sony did with their SLT Alpha cameras before Sony went down the mirrorless path. For Pentax this would split much more light between the optical viewfinder and the sensor assuming Pentax avails itself of the much wider array of focus points on sensors with pdaf functionality. Given Pentax desire for best experience from optical viewfinder, could they come up with a light split that gave good optical viewfinder experience while still giving enough light to the sensor for PDAF to work in low light given these sensors are designed for mirrorless (hence no light loss before sensor)? But for Pentax, mirror could still swing up for actual exposure so no loss of light for the recorded image, unlike how Sony implemented SLT.

[thibs]

I think this is an oversimplification of reality. A mirrorless camera has a different AF system. It doesn't have a mirror that reflects the light to another sensor which is then used to determine correct focus. Mirrorless cameras use a phase detection AF system. Some would argue that this has certain disadvantages including image degradation.
I wouldn't be surprised if the sensor used in the K-new was a "new" hybrid design based on the Sony 26MP sensor but tailored for Ricoh's need for DSLR use.[COLOR="Silver"]

Or not. DSLR in LiveView mode use the same AF system as a mirrorless. Unless its sensor as PDAF embedded.
The mirrorless will be heavily optimized since it is its only AF system though.

[Kunzite]

bs! bsi!

No BS, and BSI isn't magic. Compare the KP with the Fujifilm X-T4... they're quite close, actually the KP seems better at very high ISOs:
Studio shot comparison: Digital Photography Review

[D1N0]

Pentax will get a of the shelf sony either:
IMX571 26MP APS-C 3.76 micron 16fps SLVS-EC 8Lane or: IMX271 24MP APS-C 3.91 micron 19fps SLVS 8Lane SLVS-EC 8Lane

Either will be more than good enough and Pentax will use their noise reduction preprocessing on it.

[ogl]

Pentax will get a of the shelf sony either:
IMX571 26MP APS-C 3.76 micron 16fps SLVS-EC 8Lane or: IMX271 24MP APS-C 3.91 micron 19fps SLVS 8Lane SLVS-EC 8Lane

Either will be more than good enough and Pentax will use their noise reduction preprocessing on it.

But which one?

[thibs]

But which one?

Does it matter that much right now?

[Kunzite]

Pentax will get a of the shelf sony either:
IMX571 26MP APS-C 3.76 micron 16fps SLVS-EC 8Lane or: IMX271 24MP APS-C 3.91 micron 19fps SLVS 8Lane SLVS-EC 8Lane

Either will be more than good enough and Pentax will use their noise reduction preprocessing on it.

The accelerator isn't "noise reduction processing".

[Serkevan]

The accelerator isn't "noise reduction processing".

What does it do then? The one on the KP/K-1ii does exactly that AFAICT.