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Sigma APO 50-150mm F2.8 EX DC OS HSM
Tamron SP 90mm F/2.8 Di VC USD 1:1 Macro
Top 10%746 points
Top 10%
Top 1%832 points
Top 1%
Sigma APO 50-150mm F2.8 EX DC OS HSM
Tamron SP 90mm F/2.8 Di VC USD  1:1 Macro
Top specs and features

Sigma APO 50-150mm F2.8 EX DC OS HSM vs Tamron SP 90mm F/2.8 Di VC USD 1:1 Macro: 32 facts in comparison

1. widest aperture

With a wider aperture the sensor can capture more light, helping to avoid blur by enabling a faster shutter speed. It also provides a shallow depth of field, allowing you to blur the background to focus attention on the subject.
f/2.8
Samyang XP 50mm f/1.2: f/1.2
f/2.8

2. widest aperture at maximum focal length

With a wider aperture the sensor can capture more light, helping to avoid blur by enabling a faster shutter speed. It also provides a shallow depth of field, allowing you to blur the background to focus attention on the subject.
2.8f
Samyang XP 50mm f/1.2: 1.2f
2.8f

3. sharpness result

The sharpness result from the DxOMark set of metrics. This result is based on the MTF (modulation transfer function) measurement, and gives an overall indication of the sharpness of images produced by the lens. Tested with Nikon D7000 or Canon 7D. Source: DxOMark.
11P-MPix
Zeiss Batis 25mm F2: 22P-MPix
9P-MPix

4. transmission

The transmission result from the DxOMark set of metrics. Transmission refers to the amount of light that reaches the sensor through all of the glass elements of a lens, with a lower TStop signifying more light. This is important as less light reaching the sensor can lead to the requirement of higher ISOs or slower shutter speeds. Tested with Nikon D7000 or Canon 7D. Source: DxOMark.
3.2TStop
Canon EF 85mm F/1.2L II USM: 1.4TStop
3.2TStop

5. has a silent focus motor built into the lens

Lenses with built-in focus motor focus faster and more quietly than lenses without a focus motor which rely on the camera's body focus motor.
Sigma APO 50-150mm F2.8 EX DC OS HSM
Tamron SP 90mm F/2.8 Di VC USD 1:1 Macro
52% have it

6. DxOMark score

DxOMark is a set of tests to measure the performance and quality of lenses and cameras. The DxOMark score is the overall score given to the lens. Tested with Nikon D7000 or Canon 7D. Source: DxOMark.
19
Zeiss Batis 25mm F2: 39
19

7. Has focus motor

Lenses with a built-in focus motor can autofocus even if the camera does not have its own focus motor.
Sigma APO 50-150mm F2.8 EX DC OS HSM
Tamron SP 90mm F/2.8 Di VC USD 1:1 Macro
87% have it

8. chromatic aberration

The lateral chromatic aberration result from the DxOMark set of metrics. Chromatic aberration is a type of distortion which results in color fringing along edges within the image. Tested with Nikon D7000 or Canon 7D. Source: DxOMark.
7µm
Nikon AF Micro-Nikkor 200mm F/4D IF-ED: 1µm
6µm

9. Has full-time manual focus

With full-time manual focus, you can move the focus ring whilst it is in AF (autofocus) mode. This means that you can make manual adjustments once the AF has finished, without changing to manual mode.
Sigma APO 50-150mm F2.8 EX DC OS HSM
Tamron SP 90mm F/2.8 Di VC USD 1:1 Macro
71% have it

10. smallest aperture at maximum focal length

A smaller aperture reduces the amount of light reaching the sensor. This is important in bright conditions where a wider aperture could result in your image being overexposed. Another advantage is that with a smaller aperture you get a greater depth of field, and can keep all of the image in focus.
22f
Pentax HD DA 560mm F5.6 ED AW: 45f
32f

11. minimum focus distance

This is the closest distance that the lens can focus. A shorter minimum focus distance allows you to get closer to your subject, and is particularly important when doing macro photography.
0.8m
Samsung NX 10mm F3.5 Fisheye: 0.09m
0.3m

12. maximum focal length

A longer maximum focal length allows you to focus in on a small part of a scene, and offers a narrower angle of view than shorter focal lengths.
150mm
Sigma 300-800mm F5.6 EX DG APO HSM: 800mm
90mm

13. has built-in optical image stabilization

Optical image stabilization uses gyroscopic sensors to detect the vibrations of the camera. The lens adjusts the optical path accordingly, ensuring that any type of motion blur is corrected before the sensor captures the image.
Sigma APO 50-150mm F2.8 EX DC OS HSM
Tamron SP 90mm F/2.8 Di VC USD 1:1 Macro
37% have it

14. minimum focal length

A shorter minimum focal length allows you to get more of the scene in the photo, and offers a wider angle of view than longer focal lengths.
50mm
Sigma 4.5mm F2.8 EX DC HSM Circular Fisheye: 4.5mm
90mm

15. Has rounded aperture blades

Similar to the number of aperture blades, rounded blades affect the way the light gets through to the sensor. Rounded blades, often only found on more expensive lenses, improve the appearance of the out-of-focus areas. This allows you to attain better, softer looking bokeh in your photos.
Sigma APO 50-150mm F2.8 EX DC OS HSM
Tamron SP 90mm F/2.8 Di VC USD 1:1 Macro
70% have it

16. aperture blades

The aperture controls how much light gets through to the camera’s sensor. More blades is often an indicator of a better quality lens. It also allows you to achieve much nicer looking bokeh when blurring out your background, whereas a lens with less blades will often produce harsher, more polygonal bokeh.
9
Lensbaby Velvet 85: 12
9

17. Front element doesn't rotate

The front element doesn’t rotate. This is important if you use filters, as some such as polarising or gradient filters have to be orientated a certain way.
Sigma APO 50-150mm F2.8 EX DC OS HSM
Tamron SP 90mm F/2.8 Di VC USD 1:1 Macro
50% have it

18. weight

790g lighter.
1.34kg
Canon EF 400mm F/4 DO IS II USM: 2.1g
550g

19. distortion

The distortion result from the DxOMark set of metrics. Distortion in the lens refers to the variation of magnification throughout the image. More distortion will result in straight lines being recorded incorrectly in the image. Tested with Nikon D7000 or Canon 7D. Source: DxOMark.
0.2%
Zeiss Otus 85mm F/1.4 ZF: 0%
0%

20. vignetting

The vignetting result from the DxOMark set of metrics. Vignetting refers to when the brightness of an image changes from the center towards the edges, resulting in darkened corners. A result of 0 is perfect and the image will have no vignetting. Tested with Nikon D7000 or Canon 7D. Source: DxOMark.
-0.8
Canon EF 24mm F/2.8 IS USM: 2
-0.5

21. Weather sealed

Device is protected with extra seals to prevent failures due to any kind of weather.
Sigma APO 50-150mm F2.8 EX DC OS HSM
Tamron SP 90mm F/2.8 Di VC USD 1:1 Macro
32% have it

22. Has a metal mount

A metal mount is generally superior to a plastic mount as it is more durable.
Sigma APO 50-150mm F2.8 EX DC OS HSM
Tamron SP 90mm F/2.8 Di VC USD 1:1 Macro
80% have it

23. Can focus to infinity

Many lenses allow you to focus to infinity. This is essential when you wish to take photos including far off objects, such as when shooting landscapes, in order to make sure everything is sharp and in focus.
Sigma APO 50-150mm F2.8 EX DC OS HSM
Tamron SP 90mm F/2.8 Di VC USD 1:1 Macro
79% have it

24. optical zoom

The zoom range is the ratio between the longest and shortest focal lengths. A higher zoom range means that the lens is more versatile.
3x
Tamron 18-400mm f/3.5-6.3 Di II VC HLD: 22.2x
1x

25. minimum angle of view

At the longest end of the lens you get the narrowest angle of view. This allows you to fit a small portion of the scene into the photograph, such as when you are zooming in on a subject (based on APS-C format).
9.5°
Tamron SP 150-600mm F/5-6.3 Di VC USD: 2°
17°

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