Types of filters: Filters for black and white 1. Full color filter. This filter is used to adjust the light and dark levels of the image to suit the sensitivity of the naked eye and produce natural light and dark in the picture. Commonly used filters include Y48 Yellow Mirror and YG

Yellow-green filter. 2. Emphasis filter This type of filter eliminates short-wavelength light (purple and blue) so that the blue sky or blue sea becomes black, creating a strong contrast between light and dark and emphasizing the tone of the picture. This type of filter has

There are two types of orange filter (O56) and red filter (R60). Color filter 1. Color temperature conversion filter (LB) There are two types of warm color filter and cold color filter. When it is cloudy or rainy, the color light is bluer. Use

Use the LB-A4 warm color filter to correct the color so that the colors appear natural. However, when you use daylight film to take pictures under the light, the color will appear reddish. You can use the LB-B12 cold color filter to correct the color temperature. 2. Neutral Density Filter

- ND Filter ) Neutral density filter is also known as neutral density filter. Because the lens color is neutral gray, this filter can not only reduce the amount of light passing through, but also has the function of not changing the color. So whether it is used for color photography or

There will be no deviation in wavelength or color temperature in black and white photography. The types of light-reducing filters can be divided into ND2, ND4, ND8, etc. according to their density. The larger the number marked, the higher the density and the stronger the ability to reduce light.

. The light transmittance of ND2 is 1/2 of the original light amount (you need to open a larger aperture for exposure). The light transmittance of ND4 is 1/4 of the original light amount (you need to open a larger aperture for exposure). The light transmittance of ND8 is

The rate is 1/8 of the original light amount (you need to open a three-stop aperture for exposure). The purpose of the dimmer filter: a. Reduce the sensitivity of the film. The dimmer filter can reduce the amount of light passing through the lens and reduce the sensitivity of the film. b. Performance

Blurry effect of short depth of field. After putting a light reduction filter on the lens, the aperture needs to be opened wide to obtain enough light. In this way, the effect of blurring the front and background can be achieved. c. Show the effect of a slow shutter speed. Even in brightly lit situations, the aperture can still be narrowed.

The shutter speed cannot be reduced to an appropriate slow speed. Using a higher magnification ND filter can reduce the shutter speed to produce a dynamic effect on dynamic subjects. d. Express the long-term exposure effect. If you want to express a long-term exposure in bright daylight

The only way to achieve a better exposure is to use an ultra-high-density ND400 light filter. This filter can reduce the shutter speed by nine steps. 3. Polarizing Filter (PL Filter), also known as polarizing filter, is a black and white and color filter.

A special filter suitable for photography. It can eliminate the reflection on the surface of the object, making the image of the subject clearer and the color more vivid. It is a necessary lens in addition to the UV filter. Polarizers can be divided into two types -

Linear Polarizing Filter and Circular Polarizing Filter. They have the same properties and are used for manual focus or auto-focus respectively. Linear Polarizing Filter

Polarizing Filter ): Can only be used on manual focus cameras. When used on auto-focus cameras, the camera's metering will be incorrect. Circular Polarizing Filter (Circular Polarizing Filter): Can be used on both auto-focus and manual focus cameras. The price is more linear

Polarizers are expensive. How to use polarizers: The structure of a polarizer is usually composed of two pieces of transparent optical glass sandwiching a piece of plastic polarizing film. When we turn the front lens of the polarizer, it is reflected on the surface of the object.

When the polarization direction of the filter is at right angles to the polarizing film arrangement of the filter, the reflection on the object will be weakened (dark) due to the blocking of the polarized light. At other angles, the polarizer will allow part or all of the polarized light to enter. Therefore, the polarizer

The effect of use can be observed through the rotation of the polarizer lens attached to the SLR camera lens, and the effect of the rotation of the filter can be seen directly from the viewfinder. Any place where the reflective part changes from bright to dark is the best angle to eliminate reflections. Polarizer

It is a neutral gray lens that has no color cast effect, so it can be used for color or black and white photography. In addition, the polarizer will also reduce the amount of light passing through about four times (i.e. two levels of exposure). Therefore, it can also replace the polarizer.

Light microscope (ND filter) is used. Price reference: search.stores.ebay/AlpineTopLine_filter _W0QQfciZQ2d1QQfclZ3 QQfsnZAlpineTopLineQ QfsooZ1QQfsopZ1QQfts Z2QQsaselZ194307285Q Qsof 2008-03-07 23:55:48 Supplement : Purpose and efficacy of polarizer: a. Eliminate unnecessary reflections

The glare generated by non-metal reflective surfaces can be eliminated using a polarizer. However, the degree of elimination depends on the angle between the reflected light and the polarizer. As for the reflected light from metals and mercury or electroplated products in lenses, it is

Metal reflective polarizers that do not contain polarized light cannot be eliminated. b. The emphasis on light and color. The elimination of polarized light can not only increase the clarity of the image, but also increase the saturation of the color, making the color of the scene more vivid. c. Eliminate fog.

The polarizer itself has the function of absorbing ultraviolet rays. When used to shoot landscapes, it can reduce the blue haze in the distant view and make the distant view clearer and brighter. 2008-03-07 23:56:31 Supplement: 4. Sky Light Filter - SL Filter

) is a common lens for color photography. It is light pink and has the effect of eliminating ultraviolet rays. It can also be used as a protective filter for color photography. 5. Ultraviolet Color Filter (Ultra-Violet Filter - UV Filter) is used to eliminate ultraviolet rays and improve images.

Clarity. The lens is colorless and transparent and can often be put on the lens as a protective lens. 2008-03-07 23:57:14 Supplement: 6. Softer lens has small bubbles irregularly dispersed on the lens

The light that passes through creates a soft focus. Advanced filters will replace tiny bubbles with tiny silver particles. The degree of softening is usually divided into two types: strong and weak. Some are divided into five levels. The higher the level, the greater the degree of softening.

Strong. Taking NIKON as an example, they are Softer 1 & Softer 2. Softer 2 has a stronger softening effect than Softer 1. When the light is distributed around the subject, the effect of using this type of lens is particularly good. The subject is sharp and the surroundings are soft.

Reduce strong contrast to create a dreamy state. Used for portraits, landscapes or still life photography to add a soft atmosphere. 2008-03-07 23:57:42 Supplement: When using the softening filter, you should pay attention to using a large aperture or mid-range

Taken with the above focal length lens. If you use a fine aperture or wide-angle lens, the soft focus effect is not obvious. Reference: wahyan.edu/ylchan/photo-course-/filter