Asahi Pentax 100mm f/4
The Asahi Pentax Takumar 100mm f/4 Bellows is a short telephoto lens designed without a focusing helicoid, intended for use on a bellows unit for close-up and macro photography on M42-screw-mount Pentax bodies. It dates from the classic Takumar era and was aimed at users needing high reproduction ratios where the bellows itself provides focus travel.
UK auction data for this lens is thin: the only logged hammer result is £69 from March 2022, a wholesale saleroom figure rather than a retail or dealer price. On that single data point the 100mm f/4 Bellows Takumar appears to be an inexpensive specialist optic in today's market, and as of 2026 buyers should expect what it sells for to track closely with general condition rather than commanding any clear variant premium.
Variants
Select a variant to filter the sales history below.
| Variant | Years | Edition | Sales | Price Range |
|---|---|---|---|---|
| Bellows | — | — | 3 | £69 – £162 |
| SMC Bellows | — | — | 3 | £59 – £162 |
Sales History
Prices shown are UK auction hammer results — the wholesale level achieved in the saleroom. Neither buyer’s nor seller’s commission is included. Dealer and retail asking prices are typically higher.
Prices updated: July 2026
| Date | Price | Source | Variant | |
|---|---|---|---|---|
| Jul 2026 | USD 96 | 🇺🇸 ebay | SMC Bellows | |
Title: [ EXC5+ ] Pentax SMC Bellows-Takumar 100mm f/4 Macro Lens For M42 Japan #18601
Description:
Rank :EXC5＋. dust : There is tiny dusts in the lens. ■ Functional of the lens. We send a product byDHL. Location: yokohamashi, Japan |
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| Jun 2026 | AUD 162 | 🇦🇺 ebay | Bellows | |
Title: Pentax Bellows Takumar 100mm f/4 Lens - M42 Mount
Description:
Pentax 100mm f/4 Takumar lens for M42 bellows. Body is in great condition with minor wear. Aperture ring works well. Glass is clean with no fungus or haze and minor dust. Under strong light there is some coating wear, which shouldn't have a noticeable impact on photos. Blades are clean and oil-free. Comes with front & rear lens caps and leather case. Location: Palmwoods, Australia |
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| Jun 2026 | USD 162 | 🇺🇸 ebay | SMC Bellows | |
Title: [Top Mint] Pentax SMC Bellows-Takumar 100mm f/4 Macro Lens For M42 From Japan
Description:
Optics: The glass is flawless and crystal clear. Under professional inspection, there is NO fungus, NO haze, and NO scratches. Lens 6613620. Lens condition. We solve all issues by consultation. 95-96% Near Mint+ Minimal sings of use, Still very clean. Location: HYOUGO, Japan |
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| Apr 2026 | £106 | 🇬🇧 ebay | Bellows | |
Title: Asahi Super Multi Coated 100mm f4 BELLOWS-TAKUMAR lens MINT W/Case&Hood PLU:S40
Description:
The Bellows Takumar is designed to be used with a bellows and so does not have a focusing helicoid. M42 Mount - the most common and easily adapted lens mount. Lenses often left the factory with slight tolerances, and modern adapters can add their own. Location: Leicester, United Kingdom |
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| Apr 2026 | £59 | 🇬🇧 ebay | SMC Bellows | |
Title: Asahi Pentax SMC 100mm F4 Bellows Lens in case. P/K Bayonet Mount
Description:
P/K Bayonet Mount. Iris works good. No scratches or fungus on or in the optics. Location: North Shields, United Kingdom |
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| Mar 2026 | £20 | 🇬🇧 Special Auction Services | SMC | |
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Auction: Photographica & Cameras Auction (Lot 77) Title: An Asahi Super Multi Coated Macro Takumar 100mm f/4 Lens
Description:
An Asahi Super Multi Coated Macro Takumar 100mm f/4 Lens, M42 mount, barrel G-VG, elements G-VG, with hood, front and rear caps |
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| Mar 2022 | £69 | 🇬🇧 Flints Auctions | Bellows | |
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Auction: The Collectors sale (Lot 672) Title: An Asahi Pentax Bellows-Tamkumar f/4 100mm Lens
Description:
black, body, E, elements, E, with maker's caps |
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| Mar 2022 | £125 | 🇬🇧 Flints Auctions | SMC | |
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Auction: The Collectors sale (Lot 678) Title: An Asahi Pentax Takumar f/4 100mm Lens
Description:
black, body, E, elements, E, complete with lens hood and maker's case |
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Frequently asked questions
What is an Asahi Pentax Takumar 100mm f/4 Bellows worth at UK auction?
The single recorded UK hammer price is £69 from 2022, so its value at saleroom level appears to sit in the modest two-figure range, though one sale is too few to define a reliable market.
How much does a Takumar 100mm f/4 Bellows sell for compared with a standard Takumar?
It tends to sell for less than helicoid-focusing Takumars of similar focal length because it cannot be used on a camera body without a bellows unit, narrowing the buyer pool.
Why is the price of this lens lower than other 100mm Takumars?
The bellows-only design means no built-in focusing, so the price reflects its specialist macro role rather than general-purpose use.