Asahi Pentax 20mm f/4.5
The Asahi Pentax 20mm f/4.5 Super-Takumar is an ultra-wide-angle prime lens made for the M42 screw-mount system. It dates from the Super-Takumar era of the late 1960s to early 1970s and was designed for general wide-angle work on Pentax Spotmatic-series 35mm SLRs.
Sales data for this lens is thin, but a clean copy sold at UK auction in late 2025 for £90 at the hammer, giving a current reference value in that region as of today. 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. Buyers should treat £90 as an indicative wholesale-level data point rather than a settled market price, and watch for fresh hammer results before committing.
Variants
Select a variant to filter the sales history below.
| Variant | Years | Edition | Sales | Price Range |
|---|---|---|---|---|
| SMC Takumar | — | — | 7 | £85 – £217 |
| Super-Takumar | — | — | 6 | £90 – £208 |
Sales History
Prices shown are realised prices — auction results and completed eBay sales, never asking prices. Most saleroom figures are hammer prices, before commission; some houses publish a premium-inclusive figure, and we do not adjust for condition. Dealer and retail asking prices are typically higher. How this figure is calculated.
Prices updated: August 2026
| Date | Price | Value GBP | Source | Variant | |
|---|---|---|---|---|---|
| Aug 2026 | USD 153 | £114 | 🇺🇸 eBay | SMC Takumar | |
Title: Asahi Super-Multi-Coated Takumar 20mm f4.5 for M42 Mount in Good Condition
Description:
This lens is in good condition for its age. The focus and aperture rings work smoothly and the glass is very clean. Location: Redlands, California, United States |
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| Jul 2026 | £122 | £122 | 🇬🇧 eBay | Super-Takumar | |
Title: Asahi Pentax Super-Takumar 20mm f/4.5 Lens (M42 Screw Mount) with Case & Cap
Description:
Up for sale is a classic, highly regarded Asahi Opt. Location: Leicester, United Kingdom |
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| Jul 2026 | USD 158 | £118 | 🇺🇸 eBay | Super-Takumar | |
Title: ASAHI PENTAX M42 20MM F4.5 SUPER-MULTI-COATED TAKUMAR WIDE ANGLECAMERA LENS
Description:
Find many great new & used options and get the best deals for ASAHI PENTAX M42 20MM F4.5 SUPER-MULTI-COATED TAKUMAR WIDE ANGLECAMERA LENS at the best online prices at eBay! Free shipping for many products! Location: Henrico, VA, United States |
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| Jul 2026 | USD 278 | £208 | 🇺🇸 eBay | Super-Takumar | |
Title: Pentax Super Takumar 20mm f4.5 Wide Angle Lens For M42 Mount From JAPAN [Exc+5]
Description:
Focus ring move just right smoothly. Aperture blades are clean and move properly. We make sure to reply. There is tiny dusts. No affect in the shooting. There is no balsam separation. There is slightly scratch as cleaning marks. Location: ibaraki, Tsuchiura, Japan |
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| Jul 2026 | USD 290 | £217 | 🇺🇸 eBay | SMC Takumar | |
Title: [MINT] Pentax SMC Super-Multi-Coated Takumar 20mm F/4.5 Lens M42 From JAPAN
Description:
Front lens cap, Rear lens cap. There are no large dusts. By weight and shape of each product, I use 13 kind of cushioning materials and pursue safety and weight reduction. No problem in the shooting. Location: IWAHUNE, NIIGATA, Japan |
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| Jun 2026 | USD 240 | £180 | 🇺🇸 eBay | SMC Takumar | |
Title: [Near MINT+++] Pentax SMC Takumar 20mm f4.5 Wide Angle Lens for M42 From JAPAN
Description:
There is no large dusts. tiny scuffs from normal use. ・For the United States. ・For All Other Countries. Beautiful condition. Weekends are not available because office is closed. It shows signs of use. Location: kumamoto-si,nishi-ku, KUMAMOTO, Japan |
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| Jun 2026 | USD 254 | £190 | 🇺🇸 eBay | Super-Takumar | |
Title: 【MINT-】 PENTAX Super TAKUMAR 20mm f/4.5 Wide Angle M42 Mount Lens
Description:
By weight and shape of each product, we use 13 kind of cushioning materials and pursue safety and weight reduction. TOTAL: MINT-. We sterilize all our products with alcohol. And the optics are cleaned with a lens cleaner. Location: nishinomiya, Japan |
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| Jun 2026 | USD 230 | £172 | 🇺🇸 eBay | SMC Takumar | |
Title: [Near MINT+++] Pentax SMC Takumar 20mm f/4.5 Wide Angle MF Lens M42 From JAPAN
Description:
Front lens cap. tiny scuffs from normal use. No problem in the shooting. There are a few tiny dusts. There is no scratches. Weekends are not available because office is closed. There is no fungus. Location: KAWAGOE, SAITAMA, Japan |
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| Jun 2026 | USD 200 | £150 | 🇺🇸 eBay | Super-Takumar | |
Title: Pentax Asahi 20mm f4.5 Super Takumar M42 Mount Lens
Description:
Lens is in great shape overall. The glass is clear, the focus and aperture are smooth. Includes caps. Location: Syracuse, NY, United States |
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| Jun 2026 | USD 275 | £206 | 🇺🇸 eBay | SMC Takumar | |
Title: [MINT] Pentax SMC Takumar 20mm f4.5 Wide Angle Lens for M42 From JAPAN
Description:
There is no large dusts. ・For the United States. ・For All Other Countries. Functional;. No problem in the shooting. It shows minimal signs of use. There is no scratches. Weekends are not available because office is closed. Location: Minoh, OSAKA, Japan |
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| Jun 2026 | USD 285 | £214 | 🇺🇸 eBay | SMC Takumar | |
Title: [MINT] Pentax SMC Takumar 20mm f4.5 Wide Angle Lens for M42 From JAPAN
Description:
There is no large dusts. ・For the United States. ・For All Other Countries. Functional;. No problem in the shooting. It shows minimal signs of use. There is no scratches. Weekends are not available because office is closed. Location: SHIZUOKA, SHIZUOKA, Japan |
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| Nov 2025 | £106 | £85 | 🇬🇧 Flints Auctions | SMC Takumar | |
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Auction: Cameras & Scientific Instruments (Lot 154) Title: A Pentax Super-Multi-Coated Takumar f/4.5 20mm Lens
Description:
black, barrel G, optics G, with caps. Note: A 5% import VAT applies to this lot for UK bidders only. International buyers are exempt from this charge |
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| Nov 2025 | £90 | £90 | 🇬🇧 Special Auction Services | Super-Takumar | |
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Auction: Fine Photographica & Cameras Auction (Lot 300) Title: An Asahi Super-Takumar 20mm f/4.5 Lens
Description:
An Asahi Super-Takumar 20mm f/4.5 Lens, M42 mount, serial no 4392180, barrel VG, elements G-VG, with Takumar 1:4.5 20mm hood, front and rear caps, in |
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Frequently asked questions
What is a Pentax 20mm f/4.5 Super-Takumar worth today?
Based on a single UK auction hammer result from late 2025, a clean example is worth around £90, though limited data means real-world prices can vary with condition.
How much does a 20mm f/4.5 Super-Takumar sell for at auction?
The most recent saleroom hammer price we have on record is £90, which is the best available reference for the lens's current wholesale value.
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.