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10-01-2013, 10:39 AM   #31
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A lot of people think the sensor is Sony because Pentax recently used Sony sensors, but I dont think Pentax is bound to Sony. Could be another brand - and there are many to choose from. I just hope it will be at least as good as the current 16MP. I doubt people will want a 24MP sensor if it has worse performance than the current 16MP. Megapixels can be important - but it is not the only factor!

We'll see.

10-01-2013, 10:49 AM   #32
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QuoteOriginally posted by Na Horuk Quote
A lot of people think the sensor is Sony because Pentax recently used Sony sensors, but I dont think Pentax is bound to Sony. Could be another brand - and there are many to choose from. I just hope it will be at least as good as the current 16MP. I doubt people will want a 24MP sensor if it has worse performance than the current 16MP. Megapixels can be important - but it is not the only factor!

We'll see.
The new 20MP sensor in the low cost Sony A3000 is much better than the 24MP A77 sensor at high iso.

20MP Sony A3000 vs 24MP Sony A77 @ 12800 iso
Sony A3000 vs Pentax K-5 IIs @ 25600 iso
10-01-2013, 11:00 AM   #33
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Y'all are missing the point that a camera is more than just its sensor. It is also the image processor and the K-3 starts a new generation with the PRIME III.

What Pentax calls "Prime III" is actually 7th generation of
the Milbeaut processor, which Fujitsu just made *public* in Sept.
Fujitsu Releases New Milbeaut
Of course, Fujitsu partners have probably been working with it for
some time. Thom Hogan, of Nikon fame talks about it in this post:
Milbeaut and EXPEED | byThom | Thom Hogan
and at the same time mentions it is also used by Pentax.

This Fujitsu image (of their roadmap for the 7th generation) is very
interesting:
http://www.fujitsu.com/img/CN/fss/services/imaging/milbeaut/image002.gif

Those two Fujitsu pages are going to give you a big glimpse at what is
going to be possible in the K-3.
"image processing speed equivalent to12fps at 24M pixels"
"Accelerated multi-frame operation"
"Full-HD H.264/AVC video compression/decompression"
"The new chip supports JPEG-HDR, a JPEG-compatible HDR format from
Dolby Laboratories. This, in turn, enables it to handle multi-bit HDR
information. "
"greatly improved optical correction capabilities"

The K-3 is going to be a *significant* upgrade from the K-5 family in
many respects.

You have to give a tip of the cap to Pentax engineers for picking the
right "horse" to bet on in going with Fujitsu's Milbeaut line of image
processors since the *istD.

Evolution:
K-7 14.6MP Samsung sensor, PRIME II, 12-bit, Dynamic Range 10.6 EV
K-5 16.3MP Sony sensor, PRIME II, 14 bit, Dynamic Range 14.1 EV (HUGE leap)
K-3 24.3MP? Sony sensor, PRIME III, ???, ???

The 7th gen image processor claims "The chip delivers greatly improved
optical correction capabilities through an updated image processing
flow, a new noise filter designed to achieve balance between
resolution and noise suppression, a newly developed circuit for
correcting focus drop-off at the edges, and improved distortion
correction and purple fringing countermeasures."

We all know that more pixels on the same size chip means more noise.
So I think the $64,000 question is how the combination of more MP and
thus more noise looks when it comes out of the PRIME III engine and if
there is a sacrifice that must be made in Dynamic Range. ( I do not
think the dynamic range of the K-5 family can be matched, at least in
this first generation camera using the PRIME III. But we will have to
wait and see!) There will be people for whom the resolution, and
greatly improved AF mean more than dynamic range, so a slight step
backwards in that department will not be a deal-breaker for many.

It will also be interesting to see if the no-anti-alias filter (and no
option for a K-3 WITH one) materializes. It is quite possible that the
new power possible with the PRIME III allows them to do moire
detection/correction in software (or will).

I'm also very curious as to whether the "purple fringing
countermeasures" is something that will benefit *legacy glass* used on
the K-3 or if it is only going to work with defined (recognized)
lenses whose optical properties are built into the image processing
algorithm.

Those Sony cameras you are talking about were hobbled, not by the sensor, but by the image processor (and for the translucent mirror, a loss of 1/3rd of the light that should have been making it to the sensor. Dumb.)

Last edited by cheekygeek; 10-01-2013 at 12:15 PM.
10-01-2013, 11:18 AM   #34
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QuoteOriginally posted by cheekygeek Quote
Y'all are missing the point that a camera is more than just its sensor. It is also the image processor and the K-3 starts a new generation with the PRIME III.
Yes, this is very exciting. I just added a K-01 ("PRIME M") to my K-7 ("PRIME II") and while the K-7 is the speed champ in some areas (shot-to-shot time comes to mind...), the K-01 is much snappier in others (image review lag, etc). Not to mention the ability for focus peaking (and apparently video stuff, of which I know little and care less). So I think we will see a real leap forward in operational performance in the K-3 vis a vis the K-5 family.

I know the K-30/50/500 also uses PRIME M, so I can't comment on its performance in a DSLR. Makes you wonder the future of PRIME M--a sidebar along the way, or the future naming convention for entry and mid-level Pentax products?

10-01-2013, 12:57 PM   #35
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QuoteOriginally posted by konraDarnok Quote
It's seems hard to believe Sony is going to put some new technology exclusively into a Pentax or Nikon body. It's going to be something they develop for their own camera division before Nikon or Pentax can get a hold of it. So what else could it be from Sony?
There is nothing to say that an exclusive is out, but exclusives do tend to cost more than non-exclusives. This is common practice in many other tech industries, so I would not be surprised if there is a Pentax exclusive on a new sensor design. You have to realize that companies like Sony have many different divisions doing very different things on very different schedules. It's very rare in a company the size of Sony that something from one division syncs up with something else in a different division. Sony microelectronics might have developed a new sensor but if the camera division isn't ready with a camera body to hold that sensor, they aren't going to sit around and wait on the camera division to catch up. They will find partners to sell it to. I work in the imaging business (just not photography) and this is standard stuff.
10-01-2013, 02:07 PM   #36
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QuoteOriginally posted by konraDarnok Quote
It's seems hard to believe Sony is going to put some new technology exclusively into a Pentax or Nikon body. It's going to be something they develop for their own camera division before Nikon or Pentax can get a hold of it. So what else could it be from Sony?
But that is exactly what they did for Olympus and the M4/3 sensors.

According to Pentax the K-5 has a different 16MP sensor in it than the K-01 or the K-30. Sensors are not as expensive as they use to be. There are too many producers in the market competing for business.
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