Lens · zoom
SMC Pentax-A 35-105mm f/3.5
Pentax · 1984-1989
Vintage35mm
SMC Pentax-A 35-105mm f/3.5: 15 elements in 13 groups, 6 aperture blades, 1.5m minimum focus, 67mm filter thread, 615g.
- Focal length
- 35-105mm
- Max aperture
- f/3.5
- Mount
- Pentax K
- Format
- 35mm
- Elements / groups
- 15 / 13
Known for
- Travel photography
- Events
- Photojournalism
Considerations
- f/3.5 limits low light
- Heavier than primes
- 1.5m minimum focus
Optical characteristics
Silverlog's editorial rating: our own judgement, not measured data.
Sharpness (wide)4, level 4 of 5
Sharpness (stopped)4, level 4 of 5
Contrast4, level 4 of 5
Flare resistance5, level 5 of 5
CA control4, level 4 of 5
Vignetting control4, level 4 of 5
Distortion control3, level 3 of 5
Bokeh: Pleasant for a zoom
Rendering: Clean, versatile
Colour: Neutral
Silverlog's editorial rating, 1 to 5; five is best. Not lab-measured.
Common issues
- Zoom mechanism wear
- Focus ring stiffness
Buying guide
Check zoom mechanism and focus operation.
Specifications
| Mount | Pentax K |
| Focal Length | 35-105mm |
| Max Aperture | f/3.5 |
| Min Aperture | f/22 |
| Aperture Blades | 6 |
| Min Focus | 1.5m |
| Filter Size | 67mm |
| Weight | 615g |
Optical design
| Formula | other |
| Elements | 15 |
| Groups | 13 |
| Coating | SMC (Pentax) |
Pricing
- Typical used price
- £60 - £120
- Mint
- ~£160
Indicative, no dated source.