Re: Lens design questions

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?

Why would cropping the field affect resolution? Any good film camera lens
was designed to exceed the spatial resolution of fine-grained film, which
in turn exceeds digital sensor spatial resolution.

Also, isn't the minimum focusing distance going to become a problem
with SLR lenses?

No, an SLR lens obeys the lens equations like any other lens.
.

Relevant Pages

  • Re: Digital vs 35mm camera optics
    ... 200 cycles/mm is routine over their smaller sensors. ... Every lens MTF chart I've seen stops at 40 cycles/mm. ... the real resolution of film is over twice that, ...
    (sci.optics)
  • Re: Canon 5D vs. Medium Format (Film)
    ... The resolution of the lens itself limits the number ... Only if the lens you started with is capable of resolving the detail. ... diffraction calculation above agrees with practical reality. ... point happens at Nyquist for the sensor, which is 88 lp/mm for the Canon ...
    (rec.photo.digital)
  • Re: Noise levels as a function of pixel size
    ... with a larger sensor produces the same result as one taken with a smaller sensor. ... >resolution limit has nothing to do with f-number of the fully open>lens. ... It is NOT, however, an acceptable baseline for the extrapolations that you have made and which have resulted in a pixel size which no physical lens could ever resolve. ...
    (rec.photo.digital)
  • Re: Noise levels as a function of pixel size
    ... >>smaller sensor. ... > theoretical NA of any lens is 1/n, where n is the refractive index. ... > resolution of the medium, but its improved SNR over a smaller format. ... > limited region compared to the medium at the focal plane (film) is quite ...
    (rec.photo.digital)
  • Re: Canon EOS-350D
    ... I also have a 28-135mm 3.5-5.6 IS lens. ... I have an uncle who has the EOS 20D. ... horizontal resolution of 300dpi. ... To do a good job _before printing_ one does all editing at image "full size" where pixels are pixels and have no dimension. ...
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