→ The Tamron A034TM tripod collar will fit the HD PENTAX-D FA 70-210mm f/4 ED SDM WR lens (source: Yaotomicamera).
→ Pentax HD Pentax-D FA 70-210mm f/4 ED SDM WR lens review by Ephotozine:
Pros
- Very good and even sharpness generally
- Low CA
- Modest vignetting
- Low distortion
- Reliable AF
- Weather resistance
- Smooth bokeh
- Half the weight of the f/2.8 lens
- Excellent flare control
- Well priced
Cons
- f/4 aperture may not suit all
- Edge sharpness drops off at longer focal lengths
→ Pentax MX – a nuts and bolts review
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