Rokinon Rokinon 28mm f2.8

M42 (also sold in Pentax K and Canon FD) · 28mm · f/2.8

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ปีผลิต

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ผลิตที่

Japan (per owner reports; unconfirmed)

สูตรเลนส์

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อัปเดต

4 ก.ค. 2569

เรื่องราวของเลนส์

The Rokinon 28mm f/2.8 is a wide-angle prime from the manual-focus era of the 1970s and 1980s, sold under the Rokinon badge in various mounts including Pentax K and Canon FD (some copies were also branded 'Automatic Wide MC'). Its true origins are murky: as one Reddit commenter notes, 'you won't find a comprehensive review of this lens because Rokinon 28mm f/2.8 lenses were likely made by different manufacturers at different times.' Community speculation on Pentax Forums points to a Japanese origin (one owner noting it was 'made in Japan, so it's not just a samyang rebrand,' guessing at Tomioka/Ricoh), while another forum thread claims 'it's one and the same with Vivitar, just different packaging and lettering.' Because Rokinon was fundamentally a rebadging house, no single definitive manufacturer, optical formula, or lineage can be confirmed. There are no established nicknames or cult jargon for this lens. Rather than a cult favorite, the reviews paint it as a modest, workmanlike wide-angle: owners describe being 'not horribly impressed' and 'disappointed' with results, though these impressions were tempered by 'lackluster films and bodies,' cheap film, and self-developing/scanning. It is a lens bought for utility and affordability rather than reputation.

สรุป: The Rokinon 28mm f/2.8 is a modest, budget vintage wide-angle whose true maker varies from copy to copy. It rewards stopping down with a sharp center but shows edge softness and vignetting wide open. It's best suited to hobbyists and film shooters who want an inexpensive, characterful 28mm and aren't chasing a legendary reputation — this is a workhorse rebrand, not a cult classic.

คาแรกเตอร์ของภาพ

ความคม (เปิดสุด)

ขอบภาพค่อนข้างนุ่มเมื่อเปิดรูรับแสงกว้างสุด แต่เมื่อหยุดรูรับแสงลงจะให้ความคมชัดสูงมากบริเวณกึ่งกลางภาพ

วิกเน็ตติ้ง

พบการมืดมุม (vignetting) ที่สังเกตได้เมื่อใช้รูรับแสงกว้าง

รีวิวจากผู้ใช้

ข้อดี
  • Some photographers cherish the lens's imperfections — the edge softness and wide-open vignetting — for the character they add to images.
  • It can deliver very sharp results in the center of the frame when stopped down.
  • Affordable, simple, and available in multiple mounts, making it an easy entry into vintage wide-angle shooting.
ข้อเสีย
  • Several owners were simply unimpressed — one was 'not horribly impressed' and another 'disappointed' with their results.
  • Softness at the edges of the frame when shot wide open.
  • Uncertain provenance and inconsistent quality, since Rokinon 28mm f/2.8 units were made by different manufacturers at different times.
เทคนิคการใช้
  • Stop the lens down to sharpen the center and reduce wide-open edge softness and vignetting.
  • Use good film/scanning or a clean digital adapter (e.g. MFT) to fairly evaluate it — several owners blamed disappointing results on cheap film and self-scanning rather than the glass.
  • Adapt it to a mirrorless body for easier manual-focus assessment, as one forum member planned to do.

แหล่งอ้างอิง (1)

Web-grounded synthesissecondary

The Rokinon 28mm f/2.8 is a wide-angle prime from the manual-focus era of the 1970s and 1980s, sold under the Rokinon badge in various mounts including Pentax K and Canon FD (some copies were also branded 'Automatic Wide MC'). Its true origins are murky: as one Reddit commenter notes, 'you won't find a comprehensive review of this lens because Rokinon 28mm f/2.8 lenses were likely made by different manufacturers at different times.' Community speculation on Pentax Forums points to a Japanese origin (one owner noting it was 'made in Japan, so it's not just a samyang rebrand,' guessing at Tomioka/Ricoh), while another forum thread claims 'it's one and the same with Vivitar, just different packaging and lettering.' Because Rokinon was fundamentally a rebadging house, no single definitive manufacturer, optical formula, or lineage can be confirmed. There are no established nicknames or cult jargon for this lens. Rather than a cult favorite, the reviews paint it as a modest, workmanlike wide-angle: owners describe being 'not horribly impressed' and 'disappointed' with results, though these impressions were tempered by 'lackluster films and bodies,' cheap film, and self-developing/scanning. It is a lens bought for utility and affordability rather than reputation.

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