Re: Lens design questions

On Aug 22, 11:34 am, Richard J Kinch <ki...@xxxxxxxxxxx> wrote:
My one minor quibble with his response is the
suggestion of a 28mm fl. wide angle SLR lens. 35mm object onto a 7mm
detector, with up to 200mm object to image distance doesn't require a
wide angle lens, nor an SLR lens.

Such a lens would be more than needed, yes, but the point is that they are
widely available for next to nothing now because of the obsolescence of
film cameras.

Wouldn't the resolution be very poor, since they are meant to project
onto a 35mm surface, and now we are projecting 3MP on a much smaller
sensor area?
Also, isn't the minimum focusing distance going to become a problem
with SLR lenses?

.

Relevant Pages

  • Re: Lens design questions
    ... wide angle SLR lens. ... detector, with up to 200mm object to image distance doesn't require a ... wide angle lens, nor an SLR lens. ...
    (sci.optics)
  • Re: Lens design questions
    ... wide angle SLR lens. ... detector, with up to 200mm object to image distance doesn't require a ... wide angle lens, nor an SLR lens. ...
    (sci.optics)