Zeiss Ikon Tenax I (570/27)

Telephoto lens accessory for Tenax Il.

— McKeown’s Price Guide, 1997–98, p. 414

{"overview":"The Zeiss Ikon Tenax I (570\/27) is a 35mm viewfinder camera that produces 24×24mm square negatives on standard 35mm film. With only one historic data point and no recent comparables, today's value is difficult to estimate reliably, and any current price would depend heavily on cosmetic condition, shutter function and completeness.","buying_guide":"Inspect the leaf shutter for sticky or sluggish speeds, as old lubricants commonly gum up on cameras of this age. Check the viewfinder for haze, the lens for fungus and cleaning marks, and confirm the film transport and frame counter operate correctly.

Generated summary, 8 May 2026 — not checked by hand; prices on this page come from the sales, not from this text.