Animation of 105mm macro lens optics

[Chris S.]

Photographer Pierre Toscani has made an excellent animation of the optics of micro-Nikkor 105mm f/2.8 AF-S VR. For those not accustomed to Nikon-speak, this is the current version of the Nikon 105mm macro lens.

In viewing the animation, one can gain understanding of several key concepts common to macro lenses: Shortening of focal length with close focus, change in effective f/stop with close focus, how the entrance and exit pupils move during focus, and how the lens elements move during focus.

(This said, I have not attempted to verify Toscani's data.)

--Chris

[ChrisR]

That's a fascinating site! It's well worth looking around it to see the other lenses he considers, including zooms, fisheyes and underwater applications.

[Asha]

That was awesome--thanks for posting the link!

[Chris S.]

Asha, Chris--glad you liked it.

It's well worth looking around it to see the other lenses he considers, including zooms, fisheyes and underwater applications.

Absolutely agreed. For those who read French, here is a link that leads to much of it: http://www.pierretoscani.com/annexe.html .

Pierre Toscani has translated some of his articles into English: http://www.pierretoscani.com/annexeGB.html

And for the rest of the articles, Google Translate does an impressive job: https://translate.google.com/translate? ... t=&act=url

--Chris