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Talking about the type and function of lens filter
2022-07-06 05:04:00 【Double vision】
Abstract : The lens filter is an accessory installed in front of the camera lens , Photographers use various lens filters to change the light or color entering the lens , Many of these effects are in post production , It is also difficult to copy . The lens filter can be divided into circles according to its shape 、 Square and rectangle . Different lens filters have different functions when taking photos , Such as UV The filter is mainly used to protect the lens . Next, this article will briefly introduce several types of lens filters and the functions of lens filters , Come and have a look with me !
- There are several types of lens filters
There are many kinds of lens filters , There are also many ways to divide , Here, it is mainly divided by the shape of the lens filter :
1、 Circular filter
A filter that can be screwed directly in front of the lens , Such as UV mirror 、 Polarizers 、ND Filters, etc . And the thickness of the circular filter also has a corresponding impact on the picture , The thicker the filter, the more halo , The thinner the filter, the less the halo .
2、 Square filter
Usually used with lens filter holder , The lens filter bracket is fixed at the front of the lens , Insert the square filter into the lens filter bracket to use . The advantage is that it can be applied to all types of lenses , This type of filter is widely used in landscape photography .
3、 Rectangular filter
Use the same method as square filter , Different from square filter , They have more room to move up and down .
Two 、 What are the functions of lens filters
Different lens filters have different effects , Here, take the four common filters as an example :
- UV Filter
It is mainly used to protect the lens , Suitable for any scene .
2.CPL Filter
Mainly to reduce glare , Increase saturation , Suitable for the sky in landscape photography 、 water 、 Plants, etc .
3.ND Filter
Mainly to extend the exposure time , Suitable for water flow in bright light 、 Waterfalls and other places .
4.GND Filter
Control the glare gradient , Reduce vignetting , Suitable for large scene photography with strong contrast , Such as after sunrise and before sunset .
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