Production
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Country
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Optical
5 elements in 5 groups
Updated
Jul 16, 2026
Tokina RMC
Pentax K-mount (PK and PKA) and other mounts of the era · 28mm · f/2.8
Compiled from 1 real reviews · AI-assisted · accuracy-checked · Updated 16 Jul 2026
Overview
The Tokina RMC line represents the Japanese third-party maker Tokina's effort during the SLR era to offer affordable, competent alternatives to OEM optics. According to the Pentax Forums review database, the Tokina RMC 28mm f/2.8 is a compact manual-focus wide-angle produced in the 1980s, available in Pentax K-mount (PK and PKA) as well as other mounts of the era. 'RMC' stands for 'Rainbow Multi-Coating,' Tokina's branding for its multi-coated glass of the period. This particular 28mm was also sold rebadged as a Hoya 28mm f/2.8, and was succeeded by the remodelled Tokina SL28 28mm f/2.8, distinguishable by its 49mm filter thread. The phillipreeve.net review of a separate Tokina RMC-badged lens, the 17mm 3.5 SL RMC, notes that Tokina made wide-angle primes desirable in an era when decent, affordable ultra-wides were hard to find, and that early samples allegedly had single coating while later RMC versions were multicoated. No established nicknames are evidenced in the reviews. The cult appeal, per the sources, rests on portability, solid all-metal build, very low used prices, and a pleasant slightly vintage rendering that makes it a budget-friendly stand-in for pricier OEM 28mm lenses.
Verdict: The Tokina RMC is a budget-friendly, compact manual-focus wide-angle with an honest, slightly vintage rendering — moderate contrast, pleasant bokeh, and good center sharpness once stopped down to f/4-f/8. It is not as refined as OEM equivalents and its edges soften wide open, but for street, landscape, and close-up shooters who want an affordable, characterful lens and don't mind manual focus, it delivers strong value. Just prioritize a clean, haze-free copy.
Optical Character
Bokeh
Pleasant bokeh with no bubble or swirl behavior, rendered by a 6-blade diaphragm.
Sharpness wide open
Good center sharpness from f/4 to f/8, with edges that can be soft wide open at f/2.8.
Contrast
Moderate contrast, which can be further reduced in hazy copies.
Community Insights
What people love
- Very low used price (average around $29 per the review database) making it a budget-friendly alternative to OEM 28mm lenses
- Compact and highly portable at roughly 160 g and 36 mm long (28mm version)
- Solid, all-metal construction in early versions with a smooth focus ring
- Good center sharpness in the f/4-f/8 range and pleasant bokeh with a slightly vintage rendering
- Native K-mount on the Pentax version mounts directly and can be adapted to other systems without modification
- High recommend rate (88% of reviewers) with strong handling and value scores
What people dislike
- Edge performance can be soft wide open at f/2.8
- Not as optically refined as OEM Pentax 28mm lenses
- Aged copies can suffer from haze (noted on the related 17mm RMC), rendering some samples unusable
- Manual focus only, with no electronics
Pro Tips
- Stop down to f/4-f/8 for the best sharpness across the frame on the 28mm; wide-open corners will be softer
- Use the soft wide-open edges intentionally for a vintage, atmospheric look when shooting near f/2.8
- Because it is manual focus, rely on careful focus-ring work and magnified focus confirmation for critical accuracy
- Its close focus (about 0.3 m on the 28mm) suits tighter compositions, so exploit it for near-subject and detail shots
Sample Photos
Sources (1)
Web research
The Tokina RMC is a budget-friendly, compact manual-focus wide-angle with an honest, slightly vintage rendering — moderate contrast, pleasant bokeh, and good center sharpness once stopped down to f/4-f/8. It is not as refined as OEM equivalents and its edges soften wide open, but for street, landscape, and close-up shooters who want an affordable, characterful lens and don't mind manual focus, it delivers strong value. Just prioritize a clean, haze-free copy.
https://www.pentaxforums.com/userreviews/tokina-mf-28mm-f2-8.htmlhttps://phillipreeve.net/blog/review-tokina-17mm-3-5-sl-rmc/