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Cokin Pure Harmonie NDX Filter nd2-400 薄框可調式減光鏡

Cokin Pure Harmonie NDX Filter nd2-400 薄框可調式減光鏡

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中灰濾鏡用於減少抵達相機傳感器的光線,因而可以降低快門速度以獲取動感(瀑布、海浪、雲層)或在強烈陽光下使用大光圈而減少景深。相機可以在相同感光度下通過使用小光圈來降低快門速度。然而高像素(2000萬以上)數碼相機由於像素密度而導致衍射光圈值(Diffraction Limited Aperture)會低於f/8,使用更小光圈會導致畫質下降, 因而更加需要外置中灰濾鏡來減少透光量。
Cokin Pure Harmonie NDX Filter ( 可漸變減光鏡 )
62mm  HK$ 1540 ---> HK$ 900
67mm  HK$ 1660 ---> HK$ 1000
72mm  HK$ 1820 ---> HK$ 1100
77mm  HK$ 1960
82mm  HK$ 2300

可變的減光濾鏡,透過鏡片轉動達至 ND2 - ND400 的減光效果,大約是一級至八級光圈的差距。
鏡片用上Cokin的 EVERCLEAR 5塗層技術,提升光學質素。

Variable Neutral Density 0.3-2.4+ Filter
Increase Exposure by 1 to 8+ Stops
Greater Control Over Exposure Settings
EVERCLEAR 5 Coating Technology
Thin Design Reduces Vignetting
Optical Glass Construction
Aluminum Filter Ring

The Cokin PURE Harmonie Variable Density Neutral Gray Filter is a solid variable neutral density filter providing a reduction of about 1 to 8 stops. The 0.3 to 2.4+ (ND2-ND300) density creates a darkening of the entire image, allowing you to photograph with a wider aperture or slower shutter speed than normally required. The degree of density is easily controlled by rotating the front filter ring, allowing you to previsualize the additional exposure length required. By slowing your exposure time or increasing your aperture, you are able to control depth of field and convey movement more easily. For easier, repeatable control over density settings, the front ring is also visually demarcated with dots that each represent one stop of neutral density.

The EVERCLEAR 5 Coating Technology is a multi-layered anti-reflective coating applied to the filter substrate in order to maintain effective light transmission and suppress surface reflections and flare. Additionally, the coating provides protection against five distinct elements: water, oil, dust, soil, and scratches.

This optical glass filter is set within a thin aluminum filter ring, which measures just 9.5mm-thick. This slender profile is ideally suited for use with wide-angle lenses in order to lessen the likelihood of vignetting.

Variable neutral density filter allows you to dial in differing amounts of density scene to scene.

ND 0.3 to 2.4+ filter darkens the image, allowing you to photograph with a longer shutter speed or wider aperture than normally required.

Providing a reduction of 1 to about 8 stops, this filter allows you to control depth of field and convey movement more easily.

Filter does not affect coloration of the image.

Anti-reflective EVERCLEAR 5 multi-layered coating helps to protect the filter from water, oil, dust, soil, and scratches, in

addition to maintaining image contrast and reducing lens flare and ghosting.

Thin aluminum filter ring measures 9.5mm-thick, making it ideal for use with wide angle lenses in order to prevent vignetting.

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