Fujifilm
MCEX-18G and MCEX-45G on GF Lenses

Revised 2023-03-16 by Bill Claff

### Introduction

Fujifilm
publishes information on the effect of using the MCEX-18G and MCEX-45G on a
variety of lenses.

The table
below is the same information which I have supplemented by computing some
additional values of interest.

Note that some of the computations are approximate because internodal distance
at infinity is not known.