Easy place to find lens construction diagrams to see distance from entrance pupil?

[Andy Zou]

I recall reading somewhere that anamorphics work best the closer they are to the entrance pupil of the lens.  Is there any easy resource to research good candidates for taking lenses?

[Brian Caldwell]

The attached PDF file contains some of the data I've measured and collected for various lenses.  EFL is the paraxial focal length, EXPP is the exit pupil distance measured from the image plane in air (positive value means pupil is towards the object from the image), ENPP is the entrance pupil distance measured from the first glass surface (positive value means the entrance pupil is towards the image plane from the first surface), and BFL is the distance from the rear glass surface to the image plane measured in air.  All measurements are in millimeters.LensData.pdfLensData.pdf