Re: How many pixels?

On 18 May 2006 14:27:43 -0700, nigelvl@xxxxxxxxx wrote:

It is important to note that the Zeiss table refers to a camera which
uses a pixel jiggling interface - this means that you do NOT get 12.5
Megapixels effectively! All you are doing is shifting the CCD in
increments to increase the "so-called" pixels. Do the same with an RGB
filter and a 4Megapixel camera and the result is actually much better
spatial resolution.


Oly and Zeiss and others shift their CCD or CMOS image sensors to
increase the final resolution. fine. but this has major drawbacks in
ultimate image resolution.

Pixera uses a single CCD with a "Diractor" to shift the image onto the
sensor without moving the sensor. Big difference.

The sensor is either cooled or un-cooled but still flat to the heat
sink of the camera body. Anative 1.5M pixel camera will produce this
resolution. The 5.8M pixel camera (600-series) produce real pixels
via Dirator movement.


Gary Gaugler, Ph.D.
Microtechnics, Inc.
Granite Bay, CA 95746
916.791.8191
gary@microtechnics dot com
.

Relevant Pages

  • Re: Noise levels as a function of pixel size
    ... with a larger sensor produces the same result as one taken with a smaller sensor. ... >resolution limit has nothing to do with f-number of the fully open>lens. ... It is NOT, however, an acceptable baseline for the extrapolations that you have made and which have resulted in a pixel size which no physical lens could ever resolve. ...
    (rec.photo.digital)
  • Re: Low cost image sensor
    ... >>>I have been searching the web for a low cost image sensor. ... >> read to 0.1mm resolution which actually means a minimum of 200 pixels ... resolution of the object and to get that from a 200 pixel device. ... Ideally I would like no moving parts, and no lens. ...
    (comp.arch.embedded)
  • Re: Nikon and Megapixels
    ... Very few lenses - even very expensve pr ones - can exeed the resolution of a 12 million pixel sensor most of the time. ... But double the pixels on even a full frame sensor would stretch the capability of most lenses other than in lab controlled conditions. ...
    (alt.photography)
  • Re: Sigma SD9...your thoughts?
    ... in our previous experience the X3 sensor delivers approximately twice ... > "Resolution of enlarged images virtually indistinguishable from six ... > can reaffirm that the sharpness of detail we get from this system equals or ... > conventional sensors with twice the pixel resolution." ...
    (alt.photography)
  • Re: DPI
    ... The pixel originates in your camera. ... There are roughly eight million Pixels on the sensor in your ... resolution discernable by the human eye. ...
    (alt.photography)