Asahi Pentax 100mm f/2.8

lens

The Asahi Pentax 100mm f/2.8 typically sells for £70 (median of 11 recorded sales, 2025–2026; fair evidence).

Typical sale price
£70

median of 11 sales, 2025–2026

last 3 years: £70 (11 sales)

Fair
£50£100

Middle half of sales: £54–£90

Which version was it?
11matched0listing doesn’t say0not yet checked
Hammer prices, buyer’s premium removed; eBay as soldHow ↗

Price by version

Typical price and middle half, on one shared scale.

SMC Pentax-M£589 sales£52–£74
2 rarer versions (1–2 sales each)
SMC Pentax-A£94
Pentax-M£100

Over time

£50£100202520262027

Every sale since 2025; no trend line.

Latest sales All 11 →

What the book says

Book guide — not a sale$80–120
McKeown’s 1997–98: $80–120 (USD, mint) — a guide price, not a sale

What it is

5 elements; focus to 1.0m; 24.5°.

— McKeown’s Price Guide, 1997–98, p. 31

Versions and how to tell them apart

SMC Pentax-M
9 sales£58IndicativePentax-M
1 saleSales onlySMC Pentax-A
1 saleSales only

Other 100mms

100mm f/2.8 Macro
16 sales£141Fair100mm f/4 Macro
8 salesabout £75Indicative100mm f/4
5 salesabout £60Indicative100mm f/4 (6x7) Macro
4 salesabout £532Indicative100mm f/3.5 Macro
3 salesabout £26Indicative100mm f/3.5
1 saleSales only100mm f/2
0 salesNo sales yet

Facts

Maker
Asahi Pentax
Type
lens
Sales in the typical price
11
First sale
23 Sep 2025
Latest sale
6 Aug 2026
Median
£70
Middle half
£54–£90
Evidence
Fair
Method
v1

Cite this page

“Asahi Pentax 100mm f/2.8: typical sale price £70, the median of 11 recorded sales, 2025–2026, middle half £54–£90 (Fair, method v1).” cameraworth.com, retrieved 8 October 2026. https://www.cameraworth.com/a/asahi-pentax/100mm-f-2-8/

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