Ron Parr

Ron Parr

Lives in United States Carrboro, NC, United States
Works as a Professor
Has a website at http://www.pbase.com/parr/
Joined on Nov 8, 1999

Comments

Total: 6, showing: 1 – 6
In reply to:

ThatCamFan: Judging by both the ACR and JPEG samples most of the shots seem out of focus or is the camera that bad? I have seen one photo so far out of 15 I checked that was actually not out of focus.

Agreed - it's focused on the right hand of the lady on the right. I'd also like to point out what was done to this shot. The notes say, " Exposure +0.70 | Highlights -84 | Shadows +84 | Clarity +10 | Vibrance +35 | Curve Adjustments: Lights +10, Darks +15" So, we have a shot that's not in focus and that was seriously underexposed due to backlighting. The final result isn't sharp and shows artifacts of noise reduction and reduced dynamic range from pushing the shadows so hard. At best one might imagine using such a photo as part of discussion about shadow detail. I don't see a reasonable role for so many shots like this in a gallery of this type unless they are trying to make a point about a badly malfunctioning camera or poorly performing photographer.

Direct link | Posted on Jun 30, 2015 at 12:21 UTC
On Ten one-of-a-kind cameras from the 21st century article (248 comments in total)
In reply to:

Frank_BR: "The E-10 looked like an SLR, but was actually a fixed-lens camera."
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I think the E-10 is a SLR. The mirror is the beam splitter.

Thank you! The E-10 was indeed an SLR and the fact that it was a fixed-lens camera has nothing to do with this. I'm disappointed that even dpreview is getting this kind of thing wrong these days.

Direct link | Posted on Sep 3, 2013 at 15:02 UTC
In reply to:

thielges: I think that the title should read "CMOS *Image Sensor* Inventor..." CMOS itself (as a platform for digital logic) was invented back in the 1960s by Frank Wanlass.

Eric - I have elsewhere referred to you as the inventor of the "modern CMOS sensor" (with image implicit). I think this is not overly long or technical, yet still fair both to you and to those upon whose shoulders you have stood.

Direct link | Posted on Oct 29, 2011 at 20:17 UTC
In reply to:

thielges: I think that the title should read "CMOS *Image Sensor* Inventor..." CMOS itself (as a platform for digital logic) was invented back in the 1960s by Frank Wanlass.

Eric, I pointed out above that you cited Gene Weckler. You have been clear about Weckler's contribution in your writing. You give Weckler credit for the basic passive pixel which begat the early passive pixel CMOS sensors. You have also been clear about the history of active pixel designs before this idea was applied to CMOS. I have no problem with YOUR scholarship and credit attribution on this.

I don't think it's correct for dpreview to say that you invented the CMOS sensor, or the CMOS image sensor, and I doubt you think that's correct either.

Direct link | Posted on Oct 29, 2011 at 14:23 UTC
In reply to:

thielges: I think that the title should read "CMOS *Image Sensor* Inventor..." CMOS itself (as a platform for digital logic) was invented back in the 1960s by Frank Wanlass.

Words have meaning and the truth matters - perhaps not to everybody, but to people who understand what the words mean, the truth often does matter. I suspect it matters to Gene Weckler. Perhaps some day you will invent something - or perhaps you already have. In any case, I hope that you will get proper credit for it.

Direct link | Posted on Oct 29, 2011 at 03:52 UTC
In reply to:

thielges: I think that the title should read "CMOS *Image Sensor* Inventor..." CMOS itself (as a platform for digital logic) was invented back in the 1960s by Frank Wanlass.

He also didn't invent the CMOS sensor. He invented the active-pixel CMOS sensor. CMOS sensors are attributed to Weckler, 1967. Fossum himself cites Weckler for this in his papers on the topic.

Direct link | Posted on Oct 29, 2011 at 00:56 UTC
Total: 6, showing: 1 – 6