Advantages of Foveon sensor Locked

Started Jun 23, 2013 | Discussions thread
This thread is locked.
OP Roland Karlsson Forum Pro • Posts: 27,398
Re: You are more wrong than right.

Kendall Helmstetter Gelner wrote:

. In reality a physical filter does in fact filter the same way. Every. Single. Time.

What photons that penetrate the Bayer CFA filter is a statistical process. How deep a photon travels in a Foveon sensor before being absorbed is also a statistical process. So, at least at low exposure, there is a significant fluctuation. Moreover, how many photons hitting the camera of different wavelengths is a statistical process. So - even if the filters exactly removed e.g. 43% of all green photons (which it does not) you would have a fluctuation in color exposure.

And all this ends up as colored photon noise.

 Roland Karlsson's gear list:Roland Karlsson's gear list
Sigma DP3 Merrill Sigma dp2 Quattro Sony RX100 III Pentax K-3 Pentax K-1 +14 more
Post (hide subjects) Posted by
(unknown member)
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow