In article ,
wrote:


A lens will project an image that has a field roughly inversly
proportional to the FL. On 35mm film, a 16mm lens typically had a
vastly bigger field than a 300mm lens.

nope.

Oh, so the 16mm lens would have the same field as the 300mm lens ?

I think not.

keep reading.

you're confusing projected image with field of view.

No confusion on my part.

yes there is.

The projected image ( circle ) has a field and is a limiting factor.

lenses will have an image circle large enough to cover whatever sensor
size the lens is designed for, and in some cases, larger.

a 16mm lens has a wider field of view than a 300mm lens, but its image
circle (what it projects) is about the same, possibly a little smaller.

If the sensor is smaller than the projected image, then some of the
field is lost.

that part is true.

A smaller sensor with the same number of ( smaller ) pixcels, used
with the same lens will record an image as if a longer lens were used.

that's why it's called a crop sensor, and the number of pixels (no c)
is irrelevant.

No, the pixel count is certainly critical. Read my premise carefully.

it isn't.