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Sigma 17-50mm F2.8 EX DC HSM Pentax on Pentax K-3 vs Pentax smc PENTAX DA 16-45mm F4 ED AL on Pentax K-3 vs Pentax smc PENTAX DA Star 16-50mm F2.8 ED AL (IF) SDM on Pentax K-3
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DXOMARK Score |
|
| Best at f=50mm & f/2.8 [?] | 21
|
Lens Metric Scores | |
|
Sharpness
[?]
|
13 P-Mpix
|
|
Transmission
[?]
|
3.1 TStop
|
|
Distortion
[?]
|
0.3 %
|
|
Vignetting
[?]
|
-1 EV
|
|
Chr. aberration
[?]
|
9 µm
|
DXOMARK Score |
|
| Best at f=28mm & f/4 [?] | 18
|
Lens Metric Scores | |
|
Sharpness
[?]
|
11 P-Mpix
|
|
Transmission
[?]
|
4.2 TStop
|
|
Distortion
[?]
|
0.3 %
|
|
Vignetting
[?]
|
-0.7 EV
|
|
Chr. aberration
[?]
|
16 µm
|
DXOMARK Score |
|
| Best at f=16mm & f/2.8 [?] | 15
|
Lens Metric Scores | |
|
Sharpness
[?]
|
10 P-Mpix
|
|
Transmission
[?]
|
3 TStop
|
|
Distortion
[?]
|
0.4 %
|
|
Vignetting
[?]
|
-0.9 EV
|
|
Chr. aberration
[?]
|
18 µm
|
| Announced | 08/12/2011 |
| Indicative price (USD) | 669 |
| Aperture | f/ 2.8 |
| Focal range (mm) | 17-50 |
| Filter diameter (mm) | 77 |
| Max diameter (mm) | 83.5 |
| Mount type | Pentax KAF |
| Stabilization | No |
| AF Motor | HSM |
| Zoom type | Ring |
| Rotating front element | Yes |
| Tripod mount | No |
| Color | Black |
| Full-Time manual focus | No |
| Number of lenses | 17 |
| Number of groups | 13 |
| Diaphragm blades | 7 |
| Circular aperture | Yes |
| Length (mm) | 91.8 |
| Weight (gr) | 550 |
Certain fields may be left blank. They will be updated as soon as possible.
| Announced | 01/01/2003 |
| Indicative price (USD) | 335 |
| Aperture | f/ 4 |
| Focal range (mm) | 16-45 |
| Filter diameter (mm) | 67 |
| Max diameter (mm) | 72 |
| Mount type | Pentax KAF |
| Stabilization | No |
| AF Motor | No |
| Zoom type | Ring |
| Rotating front element | No |
| Tripod mount | No |
| Color | Black |
| Full-Time manual focus | Yes |
| Number of lenses | 13 |
| Number of groups | 10 |
| Diaphragm blades | 6 |
| Circular aperture | No |
| Length (mm) | 92 |
| Weight (gr) | 365 |
Certain fields may be left blank. They will be updated as soon as possible.
| Announced | 01/02/2007 |
| Indicative price (USD) | 736 |
| Aperture | f/ 2.8 |
| Focal range (mm) | 16-50 |
| Filter diameter (mm) | 77 |
| Max diameter (mm) | 84 |
| Mount type | Pentax KAF |
| Stabilization | No |
| AF Motor | SDM |
| Zoom type | Ring |
| Rotating front element | No |
| Tripod mount | No |
| Color | Black |
| Full-Time manual focus | Yes |
| Number of lenses | 15 |
| Number of groups | 12 |
| Diaphragm blades | 9 |
| Circular aperture | No |
| Length (mm) | 98.5 |
| Weight (gr) | 565 |
Certain fields may be left blank. They will be updated as soon as possible.
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