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Lens Filters

Lens Filters

How are Camera Lens Filters Used in Photography and Videography?


In photography and videography, a filter is a camera accessory to protect camera lenses from scratches, thumbprints, and dust. Meanwhile, lens filters improve images and, in some instances, achieve effects that even the best photo editing suites cannot replicate. 


Different Types of Lens Filters

Lens filters consist of an optical filter that can be inserted into the optical path. A lens filter can be of a square or oblong shape and mounted in a holder accessory, or, more commonly, a glass or plastic disk in a metal or plastic ring frame, which can be screwed into the front of or clipped onto the camera lens. 


In digital photography, the majority of lens filters have been rendered redundant by digital filters applied either in-camera or during post-processing. Exceptions include the ultraviolet (UV) filter typically used to protect the front surface of the lens against moisture, dirt, and scratches, which makes them ideal for shooting in wet, dusty, or muddy environments. In the past, UV filters were also used to prevent the UV light from causing haze and fogginess in older photographic films, which were typically more sensitive to UV rays.


A neutral density (ND) filter permits effects requiring wide apertures or long exposures to be applied to brightly lit scenes, while the graduated ND filter is useful in situations where the scene's dynamic range exceeds the capability of the sensor. Not using optical filters in front of the lens has the advantage of avoiding the reduction of image quality caused by the presence of an extra optical element in the light path and may be necessary to avoid vignetting when using wide-angle lenses. ND filters are most suitable for landscape photography, flash photography, street photography, photographing moving bodies of water like rivers and falls. 


Graduated neutral density filters (also known as ND Grad or GND filters) have a vertical transition between dark and clear to balance the exposure between the sunny sky and its darker foreground. This type of lens filter varies in darkness and is measured in “stops”—the number of stops of light determines how much it will darken part of the scene you are trying to capture. Graduated neutral density filters are most suitable for landscape photography and shooting during the golden hours: after sunrise and before sunset.


A CPL filter – which stands for circular polarizer/linear – is a glass attachment that can reduce the glare from reflected surfaces. A CPL filter is most suitable for removing glass reflections, darkening the sky, and enhancing color. 


Polarizing filters, pretty much like sunglasses, add depth to an image by saturating its color and reducing reflections.


Protect your camera lenses and improve your photographs with help from K&F Concept and its wide range of selection of neutral density, protective, and polarizing lens filters.


K&F 49mm magnetic filter MCUV+CPL+ND1000, waterproof, scratch-resistant, anti-reflection green film, with magnetic attachment ring and case bag
38 % OFF
  • - Install and remove the filter quickly , install the magnetic filter in one second!
  • - Equipped with a magnetic MCUV filter, which can be used as a protective lens and can also be stacked other filters. It is also equipped with a magnetic attachment ring, and other filters can be stacked when MCUV is not required.
17 Review(s)
$159.99 $169.99 $105.99
K&F SN25T1 ND1000 Square Filter 100x100mm + Metal Holder + 8pcs Adapter Rings For DSLR
37 % OFF
  • - This SN25T1 ND1000 filter is an upgrade of the SN25T ND1000 square filter. It uses a coating process to solve the problem of color cast. Simply slide in different filters to take beautiful, colorful shots.
  • - The material of the filter is top-grade optical glass, which adopts double-sided multi-layer enhanced coating, which can effectively reduce the filter surface reflection.
61 Review(s)
$91.99 $119.99 $75.99
K&F Concept Square Filter Kit ND1000 + GND8 + Metal Square Filter Holder Set SNJ51T
45 % OFF
  • - ND1000 effectively prevents more than light, interferes with the viewfinder, guarantees the quality of picture shooting, and can play a certain dust-proof and waterproof function, which is very suitable for shooting scenery.
  • - The material of the filter is top-level optical glass, which adopts double-sided multi-layer enhanced coating, which can effectively reduce the surface reflection of the filter. It greatly reduces the glare caused by the reflection of the outer line of the long-exposure lens, and ensures the first-class image quality.
54 Review(s)
$159.99 $288.99 $159.99
K&F XV37 82mm Fader ND Filter Neutral Density Variable Filter ND2 to ND32
30 % OFF
  • - 【Material】 ND Filter: Made by Completed Professional Optical Glasses instead of Optical Resin. filter reduces the intake of light without affecting the overall color balance.
  • - 【No “X” cross on images】Say goodbye to the "X" cross on images, K&F utilize cutting edge technology you're going to say goodbye to this common issue with wide angle lenses and variable ND filters.
47 Review(s)
$89.99 $89.99 $62.99
K&F XV37 67mm Fader ND Filter Neutral Density Variable Filter ND2 to ND32
30 % OFF
  • - 【Material】 ND Filter: Made by Completed Professional Optical Glasses instead of Optical Resin. filter reduces the intake of light without affecting the overall color balance.
  • - 【No “X” cross on images】Say goodbye to the "X" cross on images, K&F utilize cutting edge technology you're going to say goodbye to this common issue with wide angle lenses and variable ND filters.
33 Review(s)
$75.99 $75.99 $52.89
K&F XB41 77mm Variable ND&CPL Filter 2 in 1 Function Nano Coating No “X” cross
8 % OFF
  • - 【ND & CPL filter 2 in 1】One filter has both of CPL and varaible ND filter function,save your time to replace two filters; it can not only reduce the amount of light entering the lens but also darken skies, manage reflections at the same time.
  • - 【No “X” cross on images】Say goodbye to the "X" cross on images, K&F utilize cutting edge technology you're going to say goodbye to this common issue with wide angle lenses and variable ND filters.
28 Review(s)
$99.99 $89.99 $82.99
  • - Ultra slim frame, only 4mm thickness.Double side 18-layer coated,water repellent,anti-oil,anti-dust,anti-soil,scratch resistant.
  • - Ultra slim rim profile to avoid vignetting on wide angle lenses, while maintaining rotation capabilities to adjust polarization levels. Extra tough Magnalium frame ensuring great durability and jamming prevention.
15 Review(s)
$57.99 $57.99
KF XN21 58 Nano-X, glass ND8, ultra-clear, coated with waterproof, scratch-resistant and anti-reflective green film
27 % OFF
  • - 1 The main purpose of using the ND lens is to prevent overexposure. If the light is too bright, it is difficult to choose a slower shutter speed to shoot. At this time, use the ND lens to reduce the light entering the lens and you can use a slower shutter to shoot. For example, if you need to shoot outdoors in strong sunlight, or you need to use a longer exposure time under normal light conditions, and shoot waterfalls with a slow shutter speed to show special effects such as blurred water flow, you need an ND lens to ensure that it is not biased. Color, no color cast........
  • - 2 KF's ND filter effectively blocks more light, interferes with the viewfinder, guarantees the quality of picture shooting, and can play a certain dust-proof and waterproof function, which is very suitable for shooting landscapes.
3 Review(s)
$49.99 $32.99 $23.99
  • - 1 The main purpose of using the ND lens is to prevent overexposure. If the light is too bright, it is difficult to choose a slower shutter speed to shoot. At this time, use the ND lens to reduce the light entering the lens and you can use a slower shutter to shoot. For example, if you need to shoot outdoors in strong sunlight, or you need to use a longer exposure time under normal light conditions, and shoot waterfalls with a slow shutter speed to show special effects such as blurred water flow, you need an ND lens to ensure that it is not biased. Color, no color cast........
  • - 2 KF's ND filter effectively blocks more light, interferes with the viewfinder, guarantees the quality of picture shooting, and can play a certain dust-proof and waterproof function, which is very suitable for shooting landscapes.
2 Review(s)
$46.99 $24.99 $24.99
K&F Nano-X 82mm Black Mist 1/4 Filter ,Waterproof and scratch-resistant Green coated
28 % OFF
  • - 【Creates a soft light "pastel" effect】Effect Softens Skin and Blemishes,create a Dream-like atmosphere.
  • - 【High-end optical glass】Multi-coating reduces reflection, reduce glare and waterproof,standard transmittance 84% with black Pro-Mist 1/4 Filter.
3 Review(s)
$109.99 $78.99
 K&F SJ51T GND8+metal Square filter Holder Set
23 % OFF
  • - It is suitable for the contrast between the sky and the ground. If the ground exposure is normal, the sky will be severely overburdened. The soft gradient lens can effectively balance the light ratio and contrast.
  • - The material of the filter is top-grade optical glass imported from Germany. The quality is guaranteed, which is the standard for high-quality products.
3 Review(s)
$129.99 $129.99 $99.99
  • - MCUV filters: The filter is made of Japanese optical glass material and coated with blue film to ensure a good light transmittance (average light transmittance is 94%). Provide improved clarity and colour balance, as well as to provide protection to your lens.
  • - CPL Circular Polarizer Filter: The filter is made of Japanese optical glass material and coated with blue film to ensure a good reflectivity, and control of color saturation - all with picture perfect results.
2 Review(s)
$29.99 $24.99
K&F SJ516 GND16 100*150*2.0mm Soft 4 f-stop Graduated Neutral Density Filter
24 % OFF
  • - K&F Soft GND16(1.2) Filter made of Germany top optical galss,increased optical clarity and color fidelity. It will not affect the sharpness on the telephoto lens and ensuring high-definition imaging.
  • - K&F neutral density adopts exclusive research and development gradual coating, the light from ultra violet to near-infrared light can pass through evenly.
3 Review(s)
$109.99 $109.99 $83.99
K&F SJ526 GND16 100*150*2.0mm Reverse 4 f-stop Graduated Neutral Density Filter
24 % OFF
  • - K&F Reverse GND16(1.2) Filter made of Germany top optical galss,increased optical clarity and color fidelity. It will not affect the sharpness on the telephoto lens and ensuring high-definition imaging.
  • - K&F neutral density adopts exclusive research and development gradual coating, the light from ultra violet to near-infrared light can pass through evenly.
3 Review(s)
$109.89 $109.89 $83.99
K&F SJ51 GND8 100*150mm Soft 3 f-stop Graduated Neutral Density Filter
28 % OFF
  • - Graduated ND8(0.9) 3 stops filter made of Germany top optical galss,increased optical clarity and color fidelity.
  • - K&F neutral density adopts exclusive research and development gradual coating, the light from ultra violet to near-infrared light can pass through evenly.
4 Review(s)
$119.99 $119.99 $86.99
K&F SJ52 GND8 100*150mm Reverse 3 f-stop Graduated Neutral Density Filter
21 % OFF
  • - Graduated ND8(0.9) 3 stops filter made of Germany top optical galss,increased optical clarity and color fidelity.
  • - K&F neutral density adopts exclusive research and development gradual coating, the light from ultra violet to near-infrared light can pass through evenly.
3 Review(s)
$109.99 $109.99 $86.99