Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
09-24-2013, 10:09 AM   #31
Junior Member




Join Date: Oct 2011
Location: Flagstaff, AZ
Photos: Albums
Posts: 43
I think this would be possible. I don't know that SR has the accuracy to make single pixel movements, but the software argument isn't completely unfounded. The camera could shift the sensor with an accuracy of maybe 3 to 10 pixels and the software could align those images to increase color accuracy, and to some extent resolution. If they could do this and keep everything in RAW I'd be totally sold on it. But they wouldn't do that. In which case I see this as more plausibly a gimmick for the Q in with the filters and hdr stuff. Any features that don't maintain RAW support are pretty useless, atleast to me.

09-24-2013, 10:40 AM   #32
Forum Member




Join Date: Apr 2009
Location: Timisoara, Romania
Posts: 74
sensor at 24MB, image at 40MB, 1 image at 1 sec? hihihi
09-24-2013, 10:52 AM   #33
Veteran Member
richard balonglong's Avatar

Join Date: Aug 2007
Location: Baguio City, Philippines
Photos: Gallery
Posts: 350
Hmmm... Shifting the sensor to create a larger image thus compositly creating a larger MP, it's like an in-sensor-image-stitching... Nice idea, but not practical... It may be a good option, but I still prefer true larger sensor than an aps-c sensor trying to dance around to copy a large sensor...
09-24-2013, 10:59 AM   #34
Pentaxian




Join Date: Oct 2011
Location: Albuquerque, NM
Posts: 6,027
QuoteOriginally posted by richard balonglong Quote
Hmmm... Shifting the sensor to create a larger image thus compositly creating a larger MP, it's like an in-sensor-image-stitching... Nice idea, but not practical... It may be a good option, but I still prefer true larger sensor than an aps-c sensor trying to dance around to copy a large sensor...
That's not exactly what it (would be) doing -- it is just shifting a few pixels so the bayer array can hit its different color filters in the same spot of actual space, so it is more like turning your Bayer sensor into a Foveon sensor so that all 3 colors are captured at each point instead of only green, red, or blue at each point (where the rest is normally filled in by interpolation). So we are talking about increased colors and resolution with more MPs -- not creating a bigger image like when you stich together a panorama. There are already Hasselblads that do this -- see link earlier in thread.

09-24-2013, 03:45 PM - 1 Like   #35
Veteran Member




Join Date: Jun 2009
Posts: 11,913
QuoteOriginally posted by mgbirder Quote
it has a nifty low light feature
Sony (NEX etc) have had this feature for years ('Hand-held Twilight' mode and 'Anti-Motion Blur' mode, also 'Superior Auto'). Camera fires a burst of shots at various exposure levels, camera does some NR and other processing, combines the images. Results only come out in JPEG though.
09-24-2013, 03:55 PM   #36
Senior Member
mgbirder's Avatar

Join Date: Jun 2010
Location: Cali
Photos: Gallery | Albums
Posts: 235
QuoteOriginally posted by rawr Quote
Sony (NEX etc) have had this feature for years ('Hand-held Twilight' mode and 'Anti-Motion Blur' mode, also 'Superior Auto'). Camera fires a burst of shots at various exposure levels, camera does some NR and other processing, combines the images. Results only come out in JPEG though.
Yep, and the image looses a lot of resolution, but if Pentax could manage that without the JPEG compresion...
09-24-2013, 04:08 PM   #37
Veteran Member




Join Date: Jun 2009
Posts: 11,913
QuoteOriginally posted by mgbirder Quote
if Pentax could manage that without the JPEG compresion...
I doubt they could pull it off in RAW mode, ie outputting a PEF or DNG. That seems a fundamental problem with this rumoured Pentax technology.

09-24-2013, 05:00 PM   #38
Pentaxian




Join Date: Oct 2011
Location: Albuquerque, NM
Posts: 6,027
QuoteOriginally posted by rawr Quote
I doubt they could pull it off in RAW mode, ie outputting a PEF or DNG. That seems a fundamental problem with this rumoured Pentax technology.
Nothing inherently stopping them from making a RAW. I've got stacking software that takes multiple RAW files as input and creates a new RAW file as output.
09-24-2013, 05:06 PM   #39
Veteran Member




Join Date: Feb 2011
Posts: 4,873
There's raw, and then there's raw. Pentax already monkeyed with 'raw' a while back above ISO1600 on the k5.
09-24-2013, 05:17 PM   #40
Veteran Member




Join Date: Dec 2010
Location: Ontario
Photos: Gallery
Posts: 3,332
QuoteOriginally posted by Digitalis Quote
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.
Existing cameras with this kind of system seem to take pictures within 1 pixel or less of 'home base'. I don't see how an APS-C imaging circle could have a problem with such a tiny movement? I'd expect they'd run into the same problem with the SR then, no?
09-24-2013, 05:39 PM   #41
Veteran Member




Join Date: Jun 2009
Posts: 11,913
QuoteOriginally posted by vonBaloney Quote
Nothing inherently stopping them from making a RAW.
Well, in the sense that a 'pure' RAW file is supposed to be a straight sensor dump at the time of exposure, it would seem problematic to achieve, since there would be compositing of multiple reads of the sensor involved here. Essentially combining 2 or more 'RAWs' into one, resulting in a file that is in fact a synthesis.
09-24-2013, 07:01 PM   #42
Veteran Member
philbaum's Avatar

Join Date: Oct 2007
Location: Port Townsend, Washington State, USA
Posts: 3,659
QuoteOriginally posted by rawr Quote
Sony (NEX etc) have had this feature for years ('Hand-held Twilight' mode and 'Anti-Motion Blur' mode, also 'Superior Auto'). Camera fires a burst of shots at various exposure levels, camera does some NR and other processing, combines the images. Results only come out in JPEG though.
Yep, Its impressive how good those modes are, but i miss the RAW provision. I suspect Sony uses jpg to speed up the processing.

Two other things that may improve Sony's market share: 1. Their attempt to provide WIFI connection to smart phone's, apparently still not very good though, 2. The ability to run Apps in the camera. Sony announced about a month ago their intention to let others write apps for the Nex cameras. Now, instead of users pleading with the manufacturer to provide new capabilities for their cameras, user groups can customize their own cameras to a greater degree than before. This is an area that Ricoh/Pentax could move into which i think is revolutionary.

Its always a win when you empower the consumer. When computing jumped from mainframe to personal computers, then the consumers responded in droves.
09-25-2013, 01:05 AM - 2 Likes   #43
Veteran Member
froeschle's Avatar

Join Date: Sep 2007
Location: Germany
Photos: Gallery
Posts: 552
This reminds me of an April Fool's joke (Pentax Germany 2008) :
Pentax patent: Sensor resolution doubled by sensor shift
09-25-2013, 01:54 AM   #44
Veteran Member
Clavius's Avatar

Join Date: Feb 2011
Location: De Klundert
Photos: Gallery
Posts: 4,150
QuoteOriginally posted by froeschle Quote
This reminds me of an April Fool's joke (Pentax Germany 2008) :
Pentax patent: Sensor resolution doubled by sensor shift
What if this is a false rumor and the K-3 really does turn out to be just a very late D7100 clone without that extra sensor shifting gimmick?
09-25-2013, 02:00 AM   #45
Veteran Member
Caat's Avatar

Join Date: Feb 2009
Location: United Kingdom
Photos: Albums
Posts: 927
QuoteOriginally posted by Clavius Quote
What if this is a false rumor and the K-3 really does turn out to be just a very late D7100 clone without that extra sensor shifting gimmick?
This is what I am expecting. Pentax, as far as I can recall, has never matched rumours pre-camera announcement.

I suspect that this rumour could come from the 645D development strand rather than the K development strand and wires have got crossed. It could turn up eventually but I wonder if this is just an R&D project at the moment.
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 05:32 AM. | See also: NikonForums.com, CanonForums.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