Carl Zeiss Biogon 21mm f/4.5 Contax RF + Zeiss Ikon 21mm Finder 435 Boxed CLA

Carl Zeiss Biogon 21mm f/4.5 N°3255794 + Original Zeiss-Ikon 21mm Finder (Ref. 435) — Contax RF Mount

The Carl Zeiss Biogon 21mm f/4.5 is one of the most legendary ultra-wide lenses in rangefinder history — designed by Ludwig Bertele, still admired today for its exceptional correction at such an extreme angle of view. Offered here as a complete kit with its original boxed Zeiss-Ikon finder.

LENS — Carl Zeiss Biogon 1:4.5 f=21mm / Serial N°3255794

• Mount: Contax RF (rangefinder)
• Condition: Excellent — recently serviced (full CLA)
• Aperture: Freshly adjusted during CLA, clean and smooth across the full range
• Optics: Clean glass, no fungus, no haze
• Focus: Smooth and precise
• Marked "Lens made in Germany" — Carl Zeiss (Oberkochen) production

FINDER — Zeiss-Ikon 21mm Viewfinder / Ref. 435

• Condition: Excellent — comes in its original red Zeiss-Ikon box with protective tissue
• Compatible with Contax RF (and Leica M via shoe adapter)
• Bright, clear frame lines, no haze or yellowing

INCLUDED

• Carl Zeiss Biogon 21mm f/4.5, serial N°3255794
• Zeiss-Ikon 21mm finder Ref. 435 with original box

HIGHLIGHTS

• Fresh CLA — lens performing at its best
• Rare to find as a complete, cohesive kit with boxed finder
• Exceptional 90° angle of view with minimal distortion — classic Zeiss signature
• Sold by a Paris-based vintage camera specialist

CONDITION SUMMARY
Lens: Excellent (fully serviced)
Finder: Excellent (original box)

SHIPPING
Carefully packed, fully insured, tracked worldwide shipping from Paris, France.