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Pentax SMC DA 60-250 mm f/ 4 ED (IF) SDM Lens

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Pentax SMC DA 60-250 mm f/ 4 ED (IF) SDM lens

Pentax SMC DA 60-250 mm f/ 4 ED (IF) SDM lens

Pentax SMC DA 60-250 mm f/ 4 ED (IF) SDM lens

MTF-charts

Pentax SMC DA 60-250 mm f/ 4 ED (IF) SDM MTF Chart

Optical design

Pentax SMC DA 60-250 mm f/ 4 ED (IF) SDM optical design

Format: APS-C (crop)

Type: Zoom lens

Focusing: Auto Focus (AF)

Lens mounts: Pentax K

First year of production: 2009

Optical design: 15 elements in 13 groups

Features: Ultra-Sonic Motor
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Average price: $1827

Specifications:

Focal lengthMax. apertureMin. apertureBladesMin. Focus (m.)Filter Ø (mm.)Weight (gr/oz)Length (mm/in)
60mm - 250mmf/4.0 - f/32f/3291.1671040/36,7167.5/6,6

Additional information:

 

The PentaxSMC DA 60-250 mm f/4 ED (IF) SDM is a telephoto zoom lens, providing high optical performance thanks to correct glass elements matching. The ED glass elements eliminate chromatic aberrations and level image brightness on the frame edges. High coefficient of transparency (99.8%) of each lens is achieved by using the SMC technology. 

F/4 lens speed  is constant throughout the entire range of focal lengths, thereby exposure settings do not change while zooming.

The SP (Special Protect) protective coating protects the front lens against moisture, lens, dust and dirt, which is very useful for travelling.

The lens is equipped with SDM (Supersonic Direct-drive Motor), providing accurate, smooth, silent and quick autofocusing.

lens.

The Pentax SMC DA 60-250 mm f/ 4 ED (IF) SDM pros:

  • High quality build;
  • Silent and quick autofocusing due to SDM;
  • Good optical performance;
  • Universal tilting system for the K10D + 60-250mm (convenient when attached to a tripod).

The Pentax SMC DA 60-250 mm f/ 4 ED (IF) SDM cons:

  • Slight vignetting;
  • Weight and dimensions;
  • Backup range of 60-135 between  the 50-135mm and the 60-250mm lenses.

Summary:

  • Pentax continues its DA* SDM line of high quality lenses;
  • Ergonomics and operability;
  • Most important feature: excellent image quality.

Mean price: $ 1730- 2100


Links to online resources:
Posted by: KleoY   Date of publication: 26.12.2010


Mechanical quality5.002
Optical quality4.502
Usability4.502
Pricing / Value4.002
Bokeh4.002
Overall lens rating
4.40

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