Type 3 button disguise was modified to allow for metering through a tiny hole near one edge of the button, since later versions of the F-21 had CdS metering.
|Model||F-21 with TTL metering (Neon) & remote shutter release|
|Date of Manufacture|
Ebay 2002/10/09 1025UD (No.78157, Zenith Camera), 2005/01/03 739USD (#801115, belt), 2006/03/16 197.99USD (two cassettes), 2006/05/31 158.94USD (box, cassette), 2006/08/16 145EUR (No 78242)
Ebay 2008/01/23 356USD
Last Updated on 21st August 2006