Tomioka Tomioka 55mm f1.4 Heritage

เรื่องราวของเลนส์

The Tomioka 55mm f/1.4 is one of the great 'ghost' lenses of Japanese optical history, sold under a variety of brand names rather than under Tomioka's own label. Tomioka Optical Works was founded in 1924 by Masahige Tomioka, reportedly a former employee of Nippon Kogaku (now Nikon), and the company built a reputation through the 1960s as an OEM supplier of high-quality optics to numerous camera makers. The 55mm f/1.4 design appeared in the early-to-mid 1960s and surfaced under labels such as AUTO RIKENON (released around 1964 for the Ricohflex TLS), Chinon, Revuenon, and later Yashinon after Yashica acquired Tomioka in 1968. Because the branding varied and the nameplates rarely say 'Tomioka,' identifying a genuine Tomioka-made copy relies on community detective work — reviewers note that not all examples carry factory wording, so provenance is often inferred rather than confirmed. The lens has a cult following precisely because of this shadowy pedigree: enthusiasts chase it as a Tomioka design at a fraction of the cost of the more famous Yashinon/Tomioka 55mm f/1.4, and it is prized for its smooth bokeh and solid build. No specific established nickname is evidenced in the reviews, though Tomioka's 55mm designs are broadly celebrated in the vintage community.

สรุป: The Tomioka 55mm f/1.4 is a lens for the vintage enthusiast who values pedigree and character over clinical performance. It rewards those who stop down for sharpness and enjoy coaxing muted, filmic colours to life in post-processing, offering creamy bokeh and a distinctive understated look. Buyers chasing dramatic swirl or huge, punchy bokeh from its large barrel may be disappointed — its charm is subtle. As an affordable route into Tomioka glass, it is a satisfying collectible and a capable portrait/close-up lens for the patient shooter.

คาแรกเตอร์ของภาพ

โบเก้

เมื่อใช้ที่รูรับแสงกว้างสุด โบเก้เนียนละมุนแทบจะเหมือนความฝัน แต่ขนาดการละลายฉากหลังกลับค่อนข้างจำกัด ซึ่งน่าแปลกใจเมื่อพิจารณาจากตัวเลนส์ที่ค่อนข้างใหญ่

โทนสี

ให้โทนภาพค่อนข้างเบาและไม่สดจัด ผลิตไฟล์ RAW ออกโทนเทา ๆ ที่สามารถยกโทนและปรับแต่งได้ดีในการประมวลผลหลังการถ่าย

ความคม (เปิดสุด)

ให้ความคมเมื่อหรี่รูรับแสงลงมาประมาณ f/4 และเมื่อถ่ายวัตถุระยะใกล้ แต่เมื่อเปิดกว้างสุดที่ f/1.4 ภาพจะค่อนข้างนุ่มและไม่ค่อยคมเมื่อโฟกัสนอกระยะใกล้มาก

คอนทราสต์

คอนทราสต์โดยรวมค่อนข้างต่ำเมื่อถ่ายที่รูรับแสงกว้างสุด ซึ่งถูกจำกัดโดยการเคลือบผิวเลนส์เพียงชั้นเดียว

วิกเน็ตติ้ง

อาการขอบมืดจะปรากฏชัดเมื่อใช้รูรับแสงกว้างสุด ทำให้ภาพดูเหมือนถูกใส่เอฟเฟ็กต์ขอบมืด (vignetting) ไว้แล้ว

รีวิวจากผู้ใช้

ข้อดี

Smooth, creamy, almost dreamy bokeh wide open that flatters portraits and close-ups
Sharpness once stopped down to around f4, becoming quite crisp for scenics and detail
Excellent handling — easy to focus and easy to use in the field
The allure of owning a genuine Tomioka-made optic at a lower price than the famous Yashinon-badged versions
Solid, substantial build quality that feels premium in hand

ข้อเสีย

Soft and low-contrast wide open beyond very close subjects
Muted, not-very-vivid colours that require post-processing to come alive
Heavy vignetting wide open that makes images look pre-vignetted
Large and heavy body that doesn't deliver the massive bokeh its size might imply
CA and colour fringing on high-contrast edges at the first two stops

เทคนิคการใช้

Stop down to f4 or beyond for the sharpest results; treat f1.4 as a look for bokeh and close subjects rather than critical sharpness
Shoot RAW and plan to lift shadows and boost saturation/contrast in Lightroom — the files are intentionally flat and respond well
Embrace the wide-open vignette as part of the character, or correct it in post if you want an even frame
Use a thin M42-PK adapter for Pentax DSLRs or an M42-NEX adapter for Sony mirrorless bodies
Set the Auto/Manual switch to use it in aperture-priority mode on Pentax DSLRs

แหล่งอ้างอิง (1)

Web-grounded synthesissecondary

The Tomioka 55mm f/1.4 is one of the great 'ghost' lenses of Japanese optical history, sold under a variety of brand names rather than under Tomioka's own label. Tomioka Optical Works was founded in 1924 by Masahige Tomioka, reportedly a former employee of Nippon Kogaku (now Nikon), and the company built a reputation through the 1960s as an OEM supplier of high-quality optics to numerous camera makers. The 55mm f/1.4 design appeared in the early-to-mid 1960s and surfaced under labels such as AUTO RIKENON (released around 1964 for the Ricohflex TLS), Chinon, Revuenon, and later Yashinon after Yashica acquired Tomioka in 1968. Because the branding varied and the nameplates rarely say 'Tomioka,' identifying a genuine Tomioka-made copy relies on community detective work — reviewers note that not all examples carry factory wording, so provenance is often inferred rather than confirmed. The lens has a cult following precisely because of this shadowy pedigree: enthusiasts chase it as a Tomioka design at a fraction of the cost of the more famous Yashinon/Tomioka 55mm f/1.4, and it is prized for its smooth bokeh and solid build. No specific established nickname is evidenced in the reviews, though Tomioka's 55mm designs are broadly celebrated in the vintage community.

https://overland25.com/en/en_vintagelens/auto-rikenon-55mm-f14-tomiokahttps://www.pentaxforums.com/userreviews/chinon-tomioka-made-55mm-f14-auto-m42.htmlhttps://nadinthomson.co.uk/tomioka-chinon-55mm-sample-images/