I wonder why Pentax does not advertise this cross sensor effect? Seems
to me that it could only serve to increase sales to people who might not
buy it otherwise. Also, this is a unique engineering and design
approach that the magazines would be raving about in reviews if Pentax
would only mention it.
Thanks,
Ed
http://lightandsilver.com
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]] On Behalf Of P�l Jensen
> Sent: Monday, September 10, 2001 7:38 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Mz-s AF disapointment and amazment
>
<snip>
> If I have understood the patents correctly a Pentax doesn't
> need a cross sensor. A cross sensor is used for making the AF
> sensor sensitive for both horizontal and vertical lines. The
> MZ-S is sensitive to both vertical and horizontal lines.
> Practically speaking the MZ-S has six cross sensors. It works
> by mirrors. All sensors are divided into two segments. The
> mirror system invert the lines for one of the two segments.
> This means that regardless of the orientation of the original
> line one of the segments will get the orientation the sensor
> is sensitive for. Eg if you have a vertical line the sensor
> will see a vertical and a horizontal line. If you have a
> horizontal line the sensor will still see a horizontal and a
> vertical line. In other words the sensor don't need to be
> sensitive to both horizontal and vertical lines but only for
> one of them.
<snip>
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