，來自【SHOPRO購物行家】，The，Lee，4x4，Neutral，Density，(ND)，0.9，ProGlass，Filter，enables，the，shooter，to，adjust，exposure，without，affecting，color，balance.，Neutral，density，filters，a。
books 博客來網路書店【客訂】英國LEE Filters 100 x 100mm(4X4) PRO 0.9ND玻璃材質(LEF0109)
。
The?Lee 4x4" Neutral Density (ND) 0.9 ProGlass Filter?enables the shooter to adjust exposure without affecting color balance. Neutral density?filters are available?in 1, 2, 3, or 4 stops to suit individual situations.
Neutral Density filters have several uses and offer the possibility to achieve otherwise unachievable results. ND filters appear grey and reduce the amount of light reaching the film. They have no effect on color balance.
Neutral Density filters have four main uses
- To enable slow shutter speeds to be used, especially with high-speed film, to record movement in subjects such as waterfalls, clouds, or cars
- To decrease depth of field by allowing wider apertures to be used, which helps separate subjects from their background
- To decrease the effective ISO of high-speed film (above ISO 400) and allow it to be used outdoors in bright situations
- To allow cine and video cameras (which have fixed shutter speeds) to film subjects such as snow, sand or other bright scenes which could cause overexposure
- ND.3 (exposure adjustment = 1 stop, reduces ISO 1/2)
- ND.6 (exposure adjustment = 2 stops, reduces ISO 1/4)
- ND.9 (exposure adjustment = 3 stops, reduces ISO 1/8)
- ND1.2 (exposure adjustment = 4 stops, reduces ISO 1/16)
【資料來源 / 版權 與 商品購買網址】
SHOPRO購物行家
- 【客訂】英國LEE Filters 100 x 100mm(4X4) PRO 0.9ND玻璃材質(LEF0109)
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