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Pentax HD DA 18-50mm F4-5.6 DC WR RE
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Pentax HD DA 18-50mm F4-5.6 DC WR RE review: specs and price
Pentax HD DA 18-50mm F4-5.6 DC WR RE
Why is Pentax HD DA 18-50mm F4-5.6 DC WR RE better than the average?
- Weight?
158gvs637.88g - Minimum focal length?
18mmvs46.95mm - Minimum focus distance?
0.3mvs0.55m - Maximum angle of view?
76°vs59.46° - Smallest aperture at maximum focal length?
32fvs23.17f - Smallest aperture at minimum focal length?
22fvs21.67f - Minimum angle of view?
31.5°vs40.02°
Price comparison
General info
1.weight
158g
We consider a lower weight better because lighter devices are more comfortable to carry. A lower weight is also an advantage for home appliances, as it makes transportation easier, and for many other types of products.
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.
3.weather-sealed (splashproof)
Pentax HD DA 18-50mm F4-5.6 DC WR RE
The device is protected with extra seals to prevent failures caused by dust, raindrops, and water splashes.
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.
5.Includes lens hood
Pentax HD DA 18-50mm F4-5.6 DC WR RE
It comes with a lens hood so that you don’t have to buy it separately. These are used to block strong light sources, such as the sun, from the lens to prevent glare and lens flare.
6.Is a normal lens
Pentax HD DA 18-50mm F4-5.6 DC WR RE
A normal lens is one that doesn't fall into another category such as wide angle or telephoto, and typically has a focal length between 35mm and 70mm. These lenses aren't tailored towards a specific type of photography, and so are quite versatile.
Optics
At the shorter end of the lens you get the widest angle of view. This allows you to fit more of the scene into the photograph (based on APS-C format).
2.magnification
0.23x
A true macro lens has a magnification of 1:1. This means that the image produced is a life-size representation of the subject being photographed.
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).
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.
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.
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.
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.
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.
Focus
1.Has focus motor
Pentax HD DA 18-50mm F4-5.6 DC WR RE
Lenses with a built-in focus motor can autofocus even if the camera does not have its own focus motor.
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.
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