BIGstopper

the

Normal Shutter Speed

1,000th500th250th125th60th30th

with Big Stopper1 second2 seconds4 seconds8 seconds15 seconds30 seconds

Normal Shutter Speed

15th8th

¼½

1 second2 seconds

with Big Stopper1 minute2 minutes4 minutes8 minutes16 minutes32 minutes

Exposure Guide

A

Fn

0

1+

-

-

2+

B

T

48 15 30 60

125250

500

1000

2000

4000

1

2

A

B

T4 8 15 30 60

125250

500

1000

2000

4000

0

1+

-

-

2+

1

2

A

B

T4 8 15 30 60

125250

500

1000

2000

4000

0

1+

-

-

2+

1

2

1

5

2

6

3

7

Without a filter, there is no sense of movement in this scene.

Screw the adaptor ring onto the front of your lens.

Clip the filter holder onto the adaptor ring by releasing the silver lug at the side.

Fit your camera to a tripod and set it to manual focus. Take a light reading, then set your aperture and make a note of the shutter speed.

The Big Stopper increases the exposure by ten stops, so you will need to extend your shutter speed accordingly. To calculate it, use the card supplied with the filter. For example, a reading of 1/125sec at f/8 becomes eight seconds at f/8. The filter has a blue cast, which can be corrected by increasing the colour temperature of your camera to 8,000-9,000K. As each filter varies slightly, you should take some test images to determine the ideal colour temperature setting for your filter.

Depending on the shutter speed, you will probably have to set your camera to bulb (B).

Slide the filter into the holder. Place it in the guide rails nearest to your lens and make sure the filter’s foam seal is facing the camera.

Release the shutter using a remote or cable release. Because the camera is in ‘B’ mode, you will need to count your exposure either in your head, or with a watch or the timer on a smartphone. Cover the viewfinder with your hand to prevent light leaks, being careful not to knock the camera.

9The ultra-slow shutter speed has resulted in the water appearing misty and ethereal.

4

8

How to use the Big Stopper

micro filter system

leefilters.com