Use an ND fil­ter for longer ex­po­sures

Practical Photography (UK) - - Explore Nature -

If you’ve ever tried long ex­po­sure pho­tog­ra­phy in broad day­light, you’ll know that even with the nar­row­est aper­ture and low­est ISO, it’s im­pos­si­ble to achieve very slow shut­ter speeds. To get around this prob­lem, you can at­tach an ND fil­ter, which blocks out a pro­por­tion of the light en­ter­ing the lens with­out caus­ing any colour tints. NDs come in a va­ri­ety of strengths, but we rec­om­mend a 10-stop for this tech­nique, which blocks out 999/1000ths of the avail­able light, giv­ing shut­ter speeds of sev­eral sec­onds even on bright days. Most 10-stop NDs, of­ten termed Big Stop­pers, screw onto the end of your lens, and only cost a few pounds. Make sure you buy one with the same thread size as your lens. Once the fil­ter is at­tached, you won’t be able to see through the viewfinder, so you’ll need to com­pose and fo­cus your shot first.

Above A 10-stop ND screws onto your lens, giv­ing you much longer shut­ter speeds. This ta­ble gives cor­rect ex­po­sure times when the fil­ter is at­tached.

Newspapers in English

Newspapers from UK

© PressReader. All rights reserved.