FISON

• Production era - 1925-1963
• Code name - FISON - 12510
• Type - Hood for 5 cm Elmar, Anastigmat, and Hektor
• Variants - Also chrome NY version.
• Evolution - First version black cylinder with rectangular aperture and index line for repositioning after focusing; 1933 version with round aperture does not require repositioning; last version was chrome with set screw.
• Accessories - VOOLA per Forum discussion [1] below
• Reference - Page 105 of Dennis Laney's Leica 1984 Accessory Guide courtesy of Mike Butkus.
• Forum discussion
  • JCB's a little...IIIb
  • [1]