Measuring with telecentric lenses
Measuring with telecentric lenses
(OP)
If I measure a flat object using a lens, projecting onto a flat CCD, is there any value to using a telecentric lens? Or will a high quality enlarging lens, etc. do just as well?





RE: Measuring with telecentric lenses
RE: Measuring with telecentric lenses
> Object size is nearly constant for changes in object distance -- If you are making measurements, this might be a big issue. You can compensate by always having measurement reference in the image, but that might not always be possible.
> Depth of focus is larger, so refocusing for object distance changing is minimized
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