|
Yep! That is true also.
That is why I said the same physical size and was specific about the actual imagers which have chips with approximatly the same area not the number of pixels or their size in the chip. If the chip is 1/4" square it will occupy the same area of the focal plane irrespective of the pixel count and have that portion of the FOV falling on it. I only refered it to a 6mm plossl because it gives a view of the approximately the same area of the focal plane as occupied by a TouCam chip, a Meade LPI, and a Meade DSI 1, I haven't checked any other imagers .
However the actual size of the image as a portion of the sky in arc minutes will depend on the focal length of the object lens or mirror. Short focal length will give a wide field, long focal length a narrow field.
Barry
|