Production
1971 – 1975
Country
Japan
Optical
7 elements in 6 groups (some versions 8/6)
Updated
Feb 15, 2026
Takumar 50mm f/1.4 (8-element)
M42 screw mount
Overview
The Takumar 50mm f/1.4 (8-element) is the earlier version of Pentax's legendary fifty — often called the 'radioactive Takumar' due to its thorium-containing elements. Made before SMC coating, it has a different character: warmer colors, more flare, and a distinct vintage rendering that many photographers prefer to the later SMC version.
Verdict: For photographers who want character over clinical perfection. The 8-element Takumar has a look that's distinct and beautiful. Choose this for the warmth, choose SMC for sharpness.
Optical Character
Bokeh
Smooth and pleasant. 8-blade aperture creates nice highlights.
Color
Warm, slightly yellow from thorium elements (can be corrected). Rich and pleasing. Many love the warmth.
Sharpness wide open
Among the sharpest vintage 50mm f/1.4 lenses. Sharp center wide open, excellent by f/2.8.
Flare resistance
Exceptional control — SMC coating is legendary. Can shoot into sun.
Contrast
Excellent for vintage — SMC coating is the reason. High contrast, handles backlight well.
Vignetting
Moderate wide open.
Community Insights
What people love
- Unique warm rendering
- Vintage character
- Thorium 'glow'
- Different from clinical modern lenses
- Affordable
- 8-element design
What people dislike
- Flare can be excessive
- Yellowing requires treatment (or acceptance)
- Not as sharp as SMC
- Radioactive (though safe)
Sample Photos
Sources (2)
unknown-
https://www.addicted2light.com/2012/11/11/review-pentax-super-takumar-50mm-f14-8-elements-design/
Lens Heritage 2nd JSONsecondary
The Takumar 50mm f/1.4 (8-element) is the earlier version of Pentax's legendary fifty — often called the 'radioactive Takumar' due to its thorium-containing elements. Made before SMC coating, it has a different character: warmer colors, more flare, and a distinct vintage rendering that many photographers prefer to the later SMC version.