Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
03-29-2015, 03:32 PM   #16
Pentaxian
RobA_Oz's Avatar

Join Date: Nov 2008
Location: Tasmania, Australia
Photos: Gallery
Posts: 4,125
QuoteOriginally posted by Uluru Quote
It is important, because one pixel at 15mm FoV, and one pixel at 300mm FoV, correspond to wholly different amount of magnification.
I take your point, but, unlike shake reduction where the amplitude will vary with magnification (and FL, of course), a one pixel shift is a one pixel shift. From Zygonyx's reply, I take it that SR will (sometimes, if not always) be overlaid on top of pixel shift, and that's why FL becomes important. I haven't seen that in other discussions on the application of the technology, but I presume others have.

03-29-2015, 03:39 PM   #17
Pentaxian




Join Date: Apr 2007
Location: Romania
Posts: 8,424
Likely, this will be a "tripod mode" function and SR will be disabled.
03-29-2015, 03:53 PM   #18
Pentaxian
Uluru's Avatar

Join Date: May 2010
Location: Back to my Walkabout Creek
Photos: Gallery | Albums
Posts: 2,400
QuoteOriginally posted by Kunzite Quote
Likely, this will be a "tripod mode" function and SR will be disabled.
But then it would be interesting to see with what specs one can use this feature without much punishment. Which FoV and shutter speeds are "safe" to use without much preparation ...
From top of my head, for anything longer than classic 35mm FoV, and with shutter speeds slower than 1/320, this will be rather hard to do without support. Some software hint on the screen would be useful too, like: "Your current FoV and shutter speed may allow for Foveon-like mode without tripod."
Now that would be cute.
03-30-2015, 07:46 AM   #19
Forum Member
slocant's Avatar

Join Date: Dec 2007
Location: Rio de Janeiro
Posts: 56
Clarity = local contrast enhancement

QuoteOriginally posted by Adam Quote
The article also talks about the new clarity enhancement feature in the K-S2.

This is a really fancy way of saying that the camera has built-in auto shadow/highlight adjustment. I've actually implemented a similar algorithm in a programming class, it was very interesting.

In the K-S2, it works well for good out-of-camera results, but I've found it to clip the shadows a little to enthusiastically.
The clarity function is an algorithm that is able to determine areas where local contrast enhancement would improve the image.

In other words, it should improve perceived sharpness.

03-31-2015, 04:38 PM   #20
Forum Member
slocant's Avatar

Join Date: Dec 2007
Location: Rio de Janeiro
Posts: 56
Clarity sample image

QuoteOriginally posted by slocant Quote
The clarity function is an algorithm that is able to determine areas where local contrast enhancement would improve the image.

In other words, it should improve perceived sharpness.
Here are two images taken from http://dc.watch.impress.co.jp/docs/review/newproduct/20150330_694901.html

The first without the clarity function and the second with it activated.

http://dc.watch.impress.co.jp/img/dcw/docs/694/901/14.jpg

http://dc.watch.impress.co.jp/img/dcw/docs/694/901/15.jpg
04-05-2015, 06:11 AM   #21
Site Supporter
Spodeworld's Avatar

Join Date: Aug 2011
Location: New Joisey
Photos: Gallery | Albums
Posts: 1,190
Would pixel shift technology wind up disabling the SR.? Or, could the shifting do double duty, both increasing color accuracy and providing SR? And, for that matter, what would it do to the AA simulator function?

Last edited by Spodeworld; 04-05-2015 at 07:18 AM.
04-05-2015, 07:34 AM - 1 Like   #22
Loyal Site Supporter




Join Date: Sep 2006
Location: Texas
Photos: Gallery | Albums
Posts: 23,767
I don't understand much of any of this....my only question is would it make handsome squirrels even more handsome? If so, I am all for it!

Otis too!


Regards!
04-11-2015, 02:11 AM   #23
Senior Member




Join Date: Feb 2010
Location: California
Posts: 190
QuoteOriginally posted by thibs Quote
I don't think this is so easy to implement. You have to be very careful to move the SR by EXACTLY one pixel or you're asking for more problems than you're trying to solve. And one pixel left or right will be potentially different for each sensor so this is very camera-specific to implement.
It may be even more of a lens specific problem. I can see it working on lenses with little distortion at the outer portion of the image circle (somewhere from 35mm onwards). Wide angle lenses might suffer quite a bit at the edges.

Edit: I see Uluru already mentioned the issue with FOV....

04-17-2015, 05:16 AM   #24
Pentaxian




Join Date: Feb 2012
Posts: 358
QuoteOriginally posted by Spodeworld Quote
Would pixel shift technology wind up disabling the SR.? Or, could the shifting do double duty, both increasing color accuracy and providing SR? And, for that matter, what would it do to the AA simulator function?
You don't need the AA if you capture all light components for each pixel so the AA simulation would be pointless.

For the SR, you probably wont use this multi-capture solution in a situation that could require any help of the SR, you need to be still ==> on a tripod so you'll deactivate the SR. It will probably not work together as it is complicated to do for almost no interest.
If the solution is able to take the 4 pictures in less than ~1/30s then it may become interesting to have SR but it will probably not be the case in a first release.

---------- Post added 04-17-15 at 02:20 PM ----------

QuoteOriginally posted by Rupert Quote
I don't understand much of any of this....my only question is would it make handsome squirrels even more handsome? If so, I am all for it!

Otis too!


Regards!
If you have no plan to stuff Otis (I hope you don't), I suppose this will not help in squirrels photography.
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!
aero, aero bright ii, camera, change, help, ii, ii lens, index, lens, otis, pentax news, pentax rumors, pixel, reflection, reflections, solution, squirrels, sr
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Imaging Resource Article on Ricoh Aero Bright II Lens Coating mgvh Pentax SLR Lens Discussion 5 03-25-2015 12:16 AM
Pentax Coatings: Ghostless, SP & Aero Bright Blue Pentax Lens Articles 42 02-25-2015 08:26 PM
Body's contact-pins losing their yellow coating. Problem? dstructor Pentax K-01 3 04-05-2013 05:37 PM
Pentax Introduces a New HD Lens Coating Adam Pentax News and Rumors 22 09-15-2012 09:19 AM
How to remove old fingerprint(s) off lens coating roboticspro Troubleshooting and Beginner Help 8 04-21-2011 02:21 PM



All times are GMT -7. The time now is 03:17 AM. | 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