K3 sensor toshiba...

[Chris Mak]

Apparantly the administrator on the "other" forum got confirmation, that the K3 is built around the toshiba 24mp (also found in the nikon latest Apsc cameras), even though Ricoh's website mentions a "brand new" sensor. Many won't care who made the sensor, as long as measurable IQ is good, but I have to say, I'm a bit disappointed that it's not a really brandnew Sony 24mp chip. I really, really like the look and IQ of the K5IIs sony sensor, and to be frank, I'm not really that enthusiastic about the nikon D7100 look at all. It's not just about noise, but the images often miss the "film-like" look of the K5(IIs). So even though the Toshiba measures OK, I was really hoping for a latest generation Sony sensor to fit this otherwise absolutely cracking Pentax release....

 

[Red5TX]

The D7100 sensor isn't great at high ISOs. Doesn't really look better than the K5IIs sensor to my eyes.

HOWEVER, it does look better than the 24mp Sony sensor from the NEX-7...

 

[Yanko Kitanov]

The worse 100%/per pixel performance of the Toshiba sensor as implemented in the D7100 compared to the Sony sensor in the K5/K5II/K5IIs is not such a big issue for many, it's there on paper, but not that visible...

But there is another bigger issue that made some D7100 users go back to D7000 in Nikon land - the long exposure noise and "banding".

"Astrographers" reported really bad banding in shots with exposure above 1min. even at base ISO100.

I suppose that for Ricoh the CoS per unit was much in Toshiba's favor though.

Cheers!

--
Regards,
Yanko
I am dreaming to enhance the sensitivity of my own perception and not the sensitivity of my camera's sensor...

 

[Meuh]

Yanko Kitanov wrote:

The worse 100%/per pixel performance of the Toshiba sensor as implemented in the D7100 compared to the Sony sensor in the K5/K5II/K5IIs is not such a big issue for many, it's there on paper, but not that visible...

But there is another bigger issue that made some D7100 users go back to D7000 in Nikon land - the long exposure noise and "banding".

"Astrographers" reported really bad banding in shots with exposure above 1min. even at base ISO100.

I suppose that for Ricoh the CoS per unit was much in Toshiba's favor though.

Cheers!

 

[Yanko Kitanov]

I don't want to be a prophet, but Pentax engineers are really some of the best out there imo and they could have solved that issue better than Nikon engineers! Let's wait and see!

Cheers!

 

[paulkienitz]

Red5TX wrote:

The D7100 sensor isn't great at high ISOs. Doesn't really look better than the K5IIs sensor to my eyes.

HOWEVER, it does look better than the 24mp Sony sensor from the NEX-7...

Dang, that Toshiba sensor is definitely not the brightest cookie in the shed when it comes to noise performance.

Doesn't matter, I still need the megapixels, and it looks like Sony can't deliver them this time.

 

[Chris Mak]

Yanko Kitanov wrote:

The worse 100%/per pixel performance of the Toshiba sensor as implemented in the D7100 compared to the Sony sensor in the K5/K5II/K5IIs is not such a big issue for many, it's there on paper, but not that visible...

But there is another bigger issue that made some D7100 users go back to D7000 in Nikon land - the long exposure noise and "banding".

"Astrographers" reported really bad banding in shots with exposure above 1min. even at base ISO100.

I suppose that for Ricoh the CoS per unit was much in Toshiba's favor though.

Cheers!

 

[solarider]

Absolutely with you here.

I'm sure RP was able to get a good deal on the sensor seeing so many were made. At this point is it possible that they are able to fine tune the design a bit through the Toshiba facility? Is it a similar sensor to the d7100 or the exact same sensor?

How were they able to deal with it through the new metering and Prime III engine differently?

I saw the JPEG samples from pentax and I thought - good enough at this point.

http://www.ricoh-imaging.co.jp/english/products/k-3/ex/

I saw the images from Frank Feng Wei at PF - very good enough imo:

pentax cough forums dot /forums/pentax-k-3/239050-pentax-k-3-hands-sample-photos.html

Plenty of time to see where things go.

Not to mention the benefit after a few FW tuneups.

Yanko Kitanov wrote:

I don't want to be a prophet, but Pentax engineers are really some of the best out there imo and they could have solved that issue better than Nikon engineers! Let's wait and see!

Cheers!

 

[Joseph Tainter]

Red5TX wrote:

The D7100 sensor isn't great at high ISOs. Doesn't really look better than the K5IIs sensor to my eyes.

HOWEVER, it does look better than the 24mp Sony sensor from the NEX-7...

I'm not sure you can say much from such images. Post-capture processing is probably different. Sony, for example, has never mastered high ISO processing.

High ISO noise means a lot in my shooting (which is often indoors). If the new sensor (whoever made it) can equal the high ISO noise of the K-5 sensor, that will be quite an accomplishment, given the smaller pixels. I would consider that satisfactory performance.

Joe

 

[lock]

does not really have a clear source to refer to. It may very well be his interpretation. Let us wait.

Lock

 

[Jim in Hudson]

Chris Mak wrote:

Apparantly the administrator on the "other" forum got confirmation, that the K3 is built around the toshiba 24mp (also found in the nikon latest Apsc cameras), even though Ricoh's website mentions a "brand new" sensor. Many won't care who made the sensor, as long as measurable IQ is good, but I have to say, I'm a bit disappointed that it's not a really brandnew Sony 24mp chip. I really, really like the look and IQ of the K5IIs sony sensor, and to be frank, I'm not really that enthusiastic about the nikon D7100 look at all. It's not just about noise, but the images often miss the "film-like" look of the K5(IIs). So even though the Toshiba measures OK, I was really hoping for a latest generation Sony sensor to fit this otherwise absolutely cracking Pentax release....

Maybe Nikon went with the Toshiba sensor because they found it better than Sony's 24 MP offering -- or anything Sony would be coming out with soon.

 

[Tan68]

yes, i have sometimes had the feeling that speculation is presented as.. more than simply speculation.

 

[JL Salvignol]

DXOMARK

www.dxomark.com

 

[petreluk]

It could be a Toshiba 24mp sensor but not the same sensor as that in the Nikon D7100. For example, it could be a more recent, tweaked iteration of it. Or it could be the exact same sensor. Either way, the imaging pipeline will be different. If it is the same sensor and iteration, only time and testing will tell whether any pitfalls of the sensor in the D7100 have been surmounted.

 

[torrent999]

Well it could be that the K5 has noise reduction on RAW files above 1600 ISO (see: http://www.dpreview.com/forums/thread/3555253 ), and that makes the K5ii RAWs seem better? Just an idea.

 

[Donald B]

Im not into hi iso, for my studio work 200-400 is what I use on the k7 some pics from IR.
d7100 v k7, if you also look at the rest of the photos you will find that the Nikons detail on fabric is also smeared, will have to wait the pentax lens might be of better quality.











--
Pentax K7, Panasonic fz150, Olympus XZ1, my main toys.

 

[Yanko Kitanov]

The 24mp from Toshiba definitely has issues in the Nikon D7100 but let's not hurry to transfer them to the K-3.

The most important part here is how Toshiba(which got the Nikon lesson) and Pentax JOINTLY implemented the sensor in the whole body system - the electric circuit, the ADC and the amplification algorithms will be the decisive points imo, these will determine if this camera handles the sensor without issues. I expect these to be a step-up from the Nikon D7100!

Cheers!

 

[petreluk]

torrent999 wrote:

Well it could be that the K5 has noise reduction on RAW files above 1600 ISO (see: http://www.dpreview.com/forums/thread/3555253 ), and that makes the K5ii RAWs seem better? Just an idea.

And the point you are making is ... ?

 

[Peter Budd]

Look and listen to this.

may not be correct of course

 

[RonakG]

Even WhatDigitalCamera says that the sensor inside K-3 is from Sony.