Lens · macro
SMC Takumar 100mm f/4 Macro
Asahi Optical · 1974-1976
Vintage35mm
A 5-element, 3-group 100mm macro with a built-in hood and 45cm minimum focus; the longer focal length gives more working distance.
- Focal length
- 100mm
- Max aperture
- f/4
- Mount
- M42 Screw
- Format
- 35mm
- Elements / groups
- 5 / 3
Known for
- Macro photography
- Insects
- Small products
- Nature close-ups
Considerations
- f/4 limits use as portrait lens
- Heavy for field work
Optical characteristics
Silverlog's editorial rating: our own judgement, not measured data.
Sharpness (wide)5, level 5 of 5
Sharpness (stopped)5, level 5 of 5
Contrast5, level 5 of 5
Flare resistance5, level 5 of 5
CA control5, level 5 of 5
Vignetting control4, level 4 of 5
Distortion control5, level 5 of 5
Bokeh: Smooth, excellent for macro
Rendering: Precision with pleasing character
Colour: Accurate SMC rendition
Silverlog's editorial rating, 1 to 5; five is best. Not lab-measured.
Common issues
- Extended helicoid wear
- Hood mechanism stiffness
Buying guide
Test the full focusing range. The hood should slide smoothly.
Specifications
| Mount | M42 Screw |
| Focal Length | 100mm |
| Max Aperture | f/4 |
| Min Aperture | f/22 |
| Aperture Blades | 8 |
| Min Focus | 0.45m |
| Filter Size | 49mm |
| Weight | 350g |
Optical design
| Formula | Telephoto |
| Elements | 5 |
| Groups | 3 |
| Coating | SMC (Pentax) |
| Special | Optimised for close focus |
Pricing
- Typical used price
- £120 - £220
- Mint
- ~£300
Indicative, no dated source.