Asahi Pentax 17mm f/4

(replaced 18mm/f11)

— McKeown’s Price Guide, 1997–98, p. 30

{"overview":"The Asahi Pentax 17mm f\/4 SMC Takumar is an ultra-wide fisheye prime for the M42 screw mount, dating from the Super-Multi-Coated Takumar era of the early 1970s. Because these figures are wholesale auction hammers (excluding commissions), retail dealer asking prices in 2026 typically sit meaningfully above this band, and clean, haze-free copies with original caps and case tend to command the upper end of what the fisheye Takumar is worth today. Collector demand is driven by the SMC coating and the lens's reputation as a characterful specialist optic rather than an everyday wide.","buying_guide":"Inspect the front and rear elements under a torch for fungus, haze and cleaning marks, as the deeply curved front is exposed and prone to coating scratches.

Generated summary, 22 Apr 2026 — not checked by hand; prices on this page come from the sales, not from this text.