Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
09-24-2013, 04:35 AM   #1
Senior Member
troenaas's Avatar

Join Date: Apr 2009
Location: Norway
Photos: Gallery | Albums
Posts: 130
Pentax K3 with 40 MP via sensor shift

Re: K3 rumor thread II: the rumoring... 40 MP via sensor shift?: Pentax SLR Talk Forum: Digital Photography Review

I haven't seen any reference to this on PF.

09-24-2013, 04:37 AM   #2
Pentaxian
Na Horuk's Avatar

Join Date: Feb 2012
Location: Slovenia, probably
Photos: Gallery | Albums
Posts: 10,325
I remember reading some posts that this feature could be possible in the Pentax system, but nothing about the next camera actually having it. Who knows, it seems a little too big a step for Pentax, but it would be interesting. Crushing Nikon in the MP race would be fun.
09-24-2013, 04:48 AM   #3
Pentaxian
konraDarnok's Avatar

Join Date: Aug 2007
Photos: Albums
Posts: 960
Every time Pentax releases a body, there's talk of wild new features never before seen, and every time they release a competent but conservative camera. However, Ricoh is not the old Pentax, and their previous effort was the GRX, so I do expect something out of the ordinary.
09-24-2013, 04:59 AM   #4
Pentaxian




Join Date: Jun 2009
Location: GMT +10
Photos: Albums
Posts: 10,581
Hmmmm. No need for such fanciness. All Pentax need to do in APS-C is a 24MP Nikon D7100 clone. With improved AF, dual card slots etc to match, wrapped in a strong, compact and WR Pentax body. The D7100 DxOMark scores better than K-5IIs, so there seems little penalty with the extra MP.

09-24-2013, 05:01 AM   #5
Site Supporter
Vylen's Avatar

Join Date: Dec 2008
Location: Sydney, Australia
Photos: Gallery
Posts: 1,248
40MP via sensor shift would be good for studio photography and landscapes. Nice way to try eat into the MF market.
09-24-2013, 05:12 AM   #6
Pentaxian
Clavius's Avatar

Join Date: Feb 2011
Location: De Klundert
Photos: Gallery
Posts: 4,115
Wohow! That would make a very interesting camera out of a very late and boring D7100 catch-up clone. It would surely make the difference between: "Meh, I'll skip this one. Maybe when the price drops." and "Quick quick! Where can I pre-order?!?" It fits so very neatly in the Pentax idea of very portable with high IQ.

Last edited by Clavius; 09-24-2013 at 05:29 AM.
09-24-2013, 05:13 AM   #7
Senior Member
troenaas's Avatar

Join Date: Apr 2009
Location: Norway
Photos: Gallery | Albums
Posts: 130
Original Poster
It seems like RIcoh has done it before:

Re: K3 rumor thread II: the rumoring... 40 MP via sensor shift?: Pentax SLR Talk Forum: Digital Photography Review
09-24-2013, 05:13 AM   #8
Site Supporter




Join Date: Jul 2012
Location: Greater Montreal Area
Posts: 736
I think there is much much more to be extracted from the sensor information just by using appropriate software. It wouldn't surprise me if one day we would have to calibrate the camera/lens combo for each of our lenses to obtain sharper, cleaner images. While I do not necessarily believe much of all these rumours threads, I still believe that over time we'll see better and better images and thus the FF unicorn becoming less and less necessary...

09-24-2013, 05:14 AM - 1 Like   #9
Pentaxian
Mistral75's Avatar

Join Date: Feb 2009
Location: Paris
Posts: 2,779
Ricoh RDC-7:

"Starting with its high resolution 3.34MP CCD for capturing JPEG or uncompressed TIFF stills, the camera can also create ultra-sharp images or images equivalent to 7MP using Ricoh's Image Enhancement Technology, a unique on-board image processing system."

Ricoh's new 3.34 and 2.14 megapixel digicams: Digital Photography Review



See also http://www.ricoh.com/r_dc/support/brochure/pdf/rdc7.pdf
Attached Images
 

Last edited by Mistral75; 09-24-2013 at 05:22 AM.
09-24-2013, 05:17 AM   #10
Pentaxian
mecrox's Avatar

Join Date: Apr 2009
Location: Oxford, UK
Photos: Gallery
Posts: 1,912
QuoteOriginally posted by rawr Quote
Hmmmm. No need for such fanciness. All Pentax need to do in APS-C is a 24MP Nikon D7100 clone. With improved AF, dual card slots etc to match, wrapped in a strong, compact and WR Pentax body. The D7100 DxOMark scores better than K-5IIs, so there seems little penalty with the extra MP.
There is if Ricoh's market research (assuming they do market research) suggests, for example, that folks are fed up with big, heavy FF cameras and would trade down to a smaller format if the quality was there; or, conversely, that without fanciness on APS-C, folks will slowly but surely trade up to another brand's FF. Fanciness also gives Ricoh a reason to charge top-dollar in a sector whose prices are under pressure at the top end. Anyway, we'll see or, er, not. Best not to believe anything till the product is there and officially announced if ever it is.

In any case, for some the real factors are in the lenses as I think you or maybe another recently said. If you want wide-angles sharp across the frame (and without too much distortion) and stellar DOF control at longer focal lengths, then APS-C has a problem while FF looks pretty attractive.
09-24-2013, 05:47 AM   #11
Pentaxian
Clavius's Avatar

Join Date: Feb 2011
Location: De Klundert
Photos: Gallery
Posts: 4,115
QuoteOriginally posted by rawr Quote
Hmmmm. No need for such fanciness. All Pentax need to do in APS-C is a 24MP Nikon D7100 clone. With improved AF, dual card slots etc to match, wrapped in a strong, compact and WR Pentax body. The D7100 DxOMark scores better than K-5IIs, so there seems little penalty with the extra MP.
Wouldn't a (very) late D7100 clone be the apitomy of playing catch-up?

Using the SR to such an advantage would be very innovative. Something the other two big ones can't play catch up to anytime soon. Sony would be able to though...

I did previously see a rumor about a new Pentax crop camera that meets the IQ of MF. So this rumor may just be more real then we dare to think. [Trying to find that rumor.]
09-24-2013, 05:59 AM   #12
Pentaxian
Digitalis's Avatar

Join Date: Mar 2009
Location: Adelaide.
Posts: 8,535
QuoteOriginally posted by Na Horuk Quote
remember reading some posts that this feature could be possible in the Pentax system
Falk Lumo and I discussed an implementation of a system similar to Hasselblad's Piezo drive that is used in the multishot digital backs to give 200MP+ resolution from a 50MP sensor. It is possible for a Pentax DSLR to do this with the electromagnetic IS system. However, this feature may be problematic when used with lenses that have APS-C specific imaging circles - the DA15mm f/4 springs to mind.

Luminous Landscape reviewed an early camera equipped with this technology ( H3DII Multishot) and they found that shifting the 50MP sensor by one pixel each direction really didn't give a significant improvement over the state of the art (at the time) phase one P65+ single shot back. Needless to say that a tripod is mandatory for the use of this technique.
09-24-2013, 06:09 AM   #13
Pentaxian
konraDarnok's Avatar

Join Date: Aug 2007
Photos: Albums
Posts: 960
QuoteOriginally posted by Digitalis Quote
Needless to say that a tripod is mandatory for the use of this technique.


Maybe. There's plenty of processing power these days, and whether the sensor moves or not, this is essentially image stacking. Astrophotographers have been doing it for years to increase resolution and dynamic range, and the results they can achieve are nothing short of a astounding.

I have my doubts this rumor has any validity, but if it does, it really wouldn't even require sensor shift. Software can orientate all the shots and merge all the data.
09-24-2013, 06:10 AM   #14
Pentaxian
Digitalis's Avatar

Join Date: Mar 2009
Location: Adelaide.
Posts: 8,535
QuoteOriginally posted by konraDarnok Quote
Astrophotographers have been doing it for years to increase resolution and dynamic range
I think you are missing the point here, Astrophotographers typically do very, very long exposures on a moving platform to compensate for the rotation of the earth, with their lenses trying to resolve objects through 100Km of atmospheric gases.

Astrophotography is considerably more complicated than what most photographers do during the daylight hours.

QuoteOriginally posted by konraDarnok Quote
Software can orientate all the shots and merge all the data.
ohh sure who needs hardware when software can solve everything.

/sarcasm.

Last edited by Digitalis; 09-24-2013 at 06:17 AM.
09-24-2013, 06:24 AM   #15
Pentaxian
Clavius's Avatar

Join Date: Feb 2011
Location: De Klundert
Photos: Gallery
Posts: 4,115
I don't think THAT much processing power or software is needed at all. I imagine that the sensor would move in the same preset direction each time. So software doesn't need to find corresponding points and warp and stitch those together. It just needs to combine multiple images the same way each and every time. That seems like very limited processing.

Yes, a tripod would be mandatory? So? Aren't our cameras married to tripods anyway? This would finally be a reason to use SR!

Last edited by Clavius; 09-24-2013 at 06:35 AM.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
k3, mp, pentax, pentax k3, pentax news, pentax rumors, sensor
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Which Pentax compacts have sensor shift SR? p38arover Pentax Compact Cameras 5 08-08-2013 06:13 AM
$2000 Superb Pentax 645D 40.0 MP with DFA AL IF SDM AW 55mm Sliver-Surfer Pentax Price Watch 23 07-12-2013 12:12 PM
Official Pentax K3 Full Frame 24 MP Den Pentax Full Frame 16 04-07-2013 02:09 AM
Dynamic Range of Pentax 16 mp sensor Steven Chain Photographic Technique 11 01-22-2013 04:20 PM
Native ISO of the 14.6 MP CMOS Sensor (with !shocking! attempt to lighten mood!) solar1 Pentax DSLR Discussion 22 01-27-2008 06:15 PM



All times are GMT -7. The time now is 02:23 PM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top