Asahi Super-Multi-Coated Takumar 20mm f4.5 for M42 Mount in Good Condition£113
Asahi Pentax 20mm f/4.5
lens
The Asahi Pentax 20mm f/4.5 typically sells for £172 (median of 13 recorded sales, 2025–2026; fair evidence).
Typical sale price
£172
median of 13 sales, 2025–2026
last 3 years: £172 (13 sales)
Fair
Middle half of sales: £118–£206
Hammer prices, buyer’s premium removed; eBay as soldHow ↗
Price by version
Typical price and middle half, on one shared scale.
Over time
Every sale since 2025; no trend line.
Latest sales All 13 →
Asahi Pentax Super-Takumar 20mm f/4.5 Lens (M42 Screw Mount) with Case & Cap£122
ASAHI PENTAX M42 20MM F4.5 SUPER-MULTI-COATED TAKUMAR WIDE ANGLECAMERA LENS£118
Pentax Super Takumar 20mm f4.5 Wide Angle Lens For M42 Mount From JAPAN [Exc+5]£208
[MINT] Pentax SMC Super-Multi-Coated Takumar 20mm F/4.5 Lens M42 From JAPAN£217
What the book says
Book guide — not a sale$200–300
McKeown’s 1997–98: $200–300 (USD, mint) — a guide price, not a sale
What it is
(same as Super Takumar, but with SMC coating). 11 elements; focus to 7.8"; 94° angle.
— McKeown’s Price Guide, 1997–98, p. 30
{"overview":"The Asahi Pentax 20mm f\/4.5 Super-Takumar is an ultra-wide-angle prime lens made for the M42 screw-mount system. Because only a single recent saleroom result is available, the price band is uncertain and condition-sensitive examples can move materially either side of that figure. Check the aperture blades for oil and confirm they snap cleanly across the f\/4.5 to f\/22 range, and turn the focus ring through its full travel to feel for stiffness or dry grease.
Generated summary, 2 May 2026 — not checked by hand; prices on this page come from the sales, not from this text.
Versions and how to tell them apart
Other 20mms
Questions
Will it fit a modern camera?
The lens uses the M42 screw mount, so it adapts readily to most mirrorless bodies via an inexpensive M42 adapter, which supports its ongoing price on the used market.
What should I check before buying one?
Prioritise glass clarity (no fungus or haze), clean and snappy aperture blades, smooth focus, and undamaged M42 threads, as these factors drive what the lens is worth.
Facts
- Maker
- Asahi Pentax
- Type
- lens
- Sales in the typical price
- 13
- First sale
- 25 Nov 2025
- Latest sale
- 7 Aug 2026
- Median
- £172
- Middle half
- £118–£206
- Evidence
- Fair
- Method
- v1
Cite this page
“Asahi Pentax 20mm f/4.5: typical sale price £172, the median of 13 recorded sales, 2025–2026, middle half £118–£206 (Fair, method v1).” cameraworth.com, retrieved 8 October 2026. https://www.cameraworth.com/a/asahi-pentax/20mm-f-4-5/