Wide Aperture Lens

Wide Aperture Lens
We already know that wide aperture lens  has the ability to bring in more light to the camera censor, so we can use higher shutter speeds. higher shutter speed will reduce camera shake dramatically, especially when we take photos without a tripod.

benefit of wide aperture lens

wide aperture lens also helps us to create photos with a shallow DOF resulting blur effect in the background and highlight objects from the background.

Wide aperture lens has a small ‘f’ number like f/1.4, f/1.8, f/2.8 greatly assist us in taking pictures in the room with low light without having to use the ‘too high ISO’.

three types of wide aperture lens

There are three types of lenses with wide aperture:
1. Wide Aperture Fixed lens,
2. Constant wide aperture Zoom lens,
3. Variable wide aperture Zoom lens

Zoom lens with constant aperture, for example, 24-70mm f/2.8 lens or 70-200mm f /4 lens  indicates that the maximum aperture of this lens at any focal point is fixed. So eg 24-70mm f/2.8 lens would be able to open at f/2.8 at 24mm to 70mm focal point. Such lenses are more difficult to build, also had a larger size and weight, so the lens of this type categorized to the expensive class  zoom lens.

Zoom lens with variable wide aperture is easier and cheaper to build, as well as having a smaller size so compact and lightweight. Lenses of this type have a maximum aperture that will shrink when we zoom the lens from shortest focal point to the longest focal. To determine the maximum lens aperture can be seen this kind of information written on the lens, ie lens 18-105mm f/3.5-5.6 lens means it has a f/3.5 maximum aperture at 18mm focal position and the maximum aperture will shrink up to f/5.6 at the 105mm focal position. Although not written in the lens, the actual minimum aperture can be smaller as the zoom lens. So be cretive with Wide Aperture Lens.

Incoming search terms:

• 1 8f constant aperture lenses

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