Comparing sharpness of 16-80 to other lenses

Started 9 months ago | Discussions thread
Belgarchi Senior Member • Posts: 2,014
Re: Questions

tokumeino wrote:

Just to understand better :

  • How do 15 and 45 lw/mm translate in terms of number of pixels ?
  • What are exactly Sagittal and Meridional ? Are really lenses performing so much differently regarding the orientation of lines to resolve ?

- I think 45 pair of lines per mm requires a minimum of 7 MP.

- Astigmatism: See https://www.olympus-lifescience.com/en/microscope-resource/primer/java/aberrations/astigmatism/

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