Re: Mechanical anti-aliasing?

2012-10-30 Thread Steven Desjardins
Build it Larry, and they will come. Oh, yes!, he ejaculated. A dialogue Mark. On Mon, Oct 29, 2012 at 1:19 AM, Larry Colen l...@red4est.com wrote: On Oct 28, 2012, at 6:17 PM, Joseph McAllister wrote: Whether the idea works or not, I'd wager it's patentable. Build it Larry, and they

Re: Mechanical anti-aliasing?

2012-10-30 Thread Joseph McAllister
A misplaced one, however. There is a difference between come and - that other spelling. On Oct 30, 2012, at 14:31 , Steven Desjardins wrote: Build it Larry, and they will come. Oh, yes!, he ejaculated. A dialogue Mark. -- PDML Pentax-Discuss Mail List PDML@pdml.net

Re: Mechanical anti-aliasing?

2012-10-28 Thread David Parsons
So, you'd have sensor based IS trying to keep the sensor stable during an exposure, and at the same time, moving the sensor to introduce AA? What does 'mechanical AA do that the optical method doesn't do? What would be the advantage of it? On Sun, Oct 28, 2012 at 3:43 PM, Larry Colen

Re: Mechanical anti-aliasing?

2012-10-28 Thread Larry Colen
On Oct 28, 2012, at 12:48 PM, David Parsons wrote: So, you'd have sensor based IS trying to keep the sensor stable during an exposure, and at the same time, moving the sensor to introduce AA? What does 'mechanical AA do that the optical method doesn't do? What would be the advantage of

Re: Mechanical anti-aliasing?

2012-10-28 Thread William Robb
On 28/10/2012 1:50 PM, Larry Colen wrote: On Oct 28, 2012, at 12:48 PM, David Parsons wrote: So, you'd have sensor based IS trying to keep the sensor stable during an exposure, and at the same time, moving the sensor to introduce AA? What does 'mechanical AA do that the optical method

Re: Mechanical anti-aliasing?

2012-10-28 Thread Larry Colen
On Oct 28, 2012, at 3:26 PM, William Robb wrote: On 28/10/2012 1:50 PM, Larry Colen wrote: On Oct 28, 2012, at 12:48 PM, David Parsons wrote: So, you'd have sensor based IS trying to keep the sensor stable during an exposure, and at the same time, moving the sensor to introduce AA?

Re: Mechanical anti-aliasing?

2012-10-28 Thread Dario Bonazza
Larry Colen wrote: I thought that what an AA filter did was specifically to blur the image on the order of a pixel width so that no transition was narrower than a pixel. I.e. acting as a low pass filter to ensure that there are no patterns of a higher frequency than the sampling rate. The

Re: Mechanical anti-aliasing?

2012-10-28 Thread William Robb
On 28/10/2012 4:39 PM, Larry Colen wrote: On Oct 28, 2012, at 3:26 PM, William Robb wrote: On 28/10/2012 1:50 PM, Larry Colen wrote: On Oct 28, 2012, at 12:48 PM, David Parsons wrote: So, you'd have sensor based IS trying to keep the sensor stable during an exposure, and at the same time,

Re: Mechanical anti-aliasing?

2012-10-28 Thread William Robb
On 28/10/2012 4:43 PM, Dario Bonazza wrote: Larry Colen wrote: I thought that what an AA filter did was specifically to blur the image on the order of a pixel width so that no transition was narrower than a pixel. I.e. acting as a low pass filter to ensure that there are no patterns of a

Re: Mechanical anti-aliasing?

2012-10-28 Thread Larry Colen
On Oct 28, 2012, at 3:52 PM, William Robb wrote: On 28/10/2012 4:43 PM, Dario Bonazza wrote: Larry Colen wrote: I thought that what an AA filter did was specifically to blur the image on the order of a pixel width so that no transition was narrower than a pixel. I.e. acting as a low

Re: Mechanical anti-aliasing?

2012-10-28 Thread William Robb
On 28/10/2012 5:05 PM, Larry Colen wrote: On Oct 28, 2012, at 3:52 PM, William Robb wrote: On 28/10/2012 4:43 PM, Dario Bonazza wrote: Larry Colen wrote: I thought that what an AA filter did was specifically to blur the image on the order of a pixel width so that no transition was narrower

Re: Mechanical anti-aliasing?

2012-10-28 Thread Larry Colen
On Oct 28, 2012, at 4:18 PM, William Robb wrote: You are still missing that what you are describing is camera shake, while what an AA filter does is more akin to a very mild soft focus filter. And the difference is that a soft focus filter works in two dimensions rather than one? A soft

Re: Mechanical anti-aliasing?

2012-10-28 Thread steve harley
on 2012-10-28 17:40 Larry Colen wrote A soft focus filter gives more of a guassian distribution to a point signal rather than a linear one? the mechanical AA could be moving the sensor in a circle of one pixel diameter (or something similar) at a rate of one revolution per shutter speed an

Re: Mechanical anti-aliasing?

2012-10-28 Thread Larry Colen
On Oct 28, 2012, at 5:15 PM, steve harley wrote: on 2012-10-28 17:40 Larry Colen wrote A soft focus filter gives more of a guassian distribution to a point signal rather than a linear one? the mechanical AA could be moving the sensor in a circle of one pixel diameter (or something

Re: Mechanical anti-aliasing?

2012-10-28 Thread William Robb
On 28/10/2012 5:40 PM, Larry Colen wrote: On Oct 28, 2012, at 4:18 PM, William Robb wrote: You are still missing that what you are describing is camera shake, while what an AA filter does is more akin to a very mild soft focus filter. And the difference is that a soft focus filter works

Re: Mechanical anti-aliasing?

2012-10-28 Thread Joseph McAllister
On Oct 28, 2012, at 17:45 , Larry Colen wrote: On Oct 28, 2012, at 5:15 PM, steve harley wrote: on 2012-10-28 17:40 Larry Colen wrote A soft focus filter gives more of a guassian distribution to a point signal rather than a linear one? the mechanical AA could be moving the sensor in

Re: Mechanical anti-aliasing?

2012-10-28 Thread Bruce Walker
On Sun, Oct 28, 2012 at 9:17 PM, Joseph McAllister pentax...@mac.com wrote: On Oct 28, 2012, at 17:45 , Larry Colen wrote: Whether the idea works or not, I'd wager it's patentable. Build it Larry, and they will come. Oh, yes!, he ejaculated. -- PDML Pentax-Discuss Mail List PDML@pdml.net

Re: Mechanical anti-aliasing?

2012-10-28 Thread Larry Colen
On Oct 28, 2012, at 6:17 PM, Joseph McAllister wrote: Whether the idea works or not, I'd wager it's patentable. Build it Larry, and they will come. All I need is a K5-IIs, the source code to the firmware and a dev box. -- Larry Colen l...@red4est.com sent from i4est -- PDML