What is a ND4 filter used for?

DJI has three official ND filters for their drones: ND4, ND8, and ND16. The number associated with an ND filter indicates that how much light enters the lens in terms of a fraction. ND4 reduces light by 1/4. An ND4 filter can reduce 2 stops of light, allowing you to slow the shutter speed from 1/100s to 1/25s.

What density ND filter should I buy?

If you’re shooting in bright light and you need to slow the shutter speed because it’s beyond the camera’s limits, the best strengths are likely to be ND2, ND4 and ND8 (1, 2 or 3 stop) filters. If you only have the budget to buy one of these ND filters, the ND8 strength is likely to be more versatile.

What is the difference between ND filters?

What do the ND filter numbers mean? The higher the number in an ND filter, the less light is passed through the lens. For example, an ND2 filter lets in 50% less light than no filter, and an ND4 lets through half as much light again, or 25% light transmission.

How many stops is ND4?

2 STOPS
How strong is my ND filter?

ND OPTICAL DENSITY F-STOP REDUCTION
ND2 0.3 1 STOPS
ND4 0.6 2 STOPS
ND8 0.9 3 STOPS
ND16 1.2 4 STOPS

What ND filter to use on a sunny day?

A 3-stop or 0.9 density ND is ideal for waterfalls in bright sunlight, slowing the exposure to a second or so, depending on the f-stop and ISO used. A strong 10-stop or 3.0 ND filter can blur clouds over several minutes, even on a bright sunny day.

How many stops is a ND8 filter?

3 STOPS
How strong is my ND filter?

ND OPTICAL DENSITY F-STOP REDUCTION
ND8 0.9 3 STOPS
ND16 1.2 4 STOPS
ND32 1.5 5 STOPS
ND64 1.8 6 STOPS

How do I know which ND filter to buy?

If you want to start with long exposure photography, I suggest to start with a 3, 6 and 10 stops filter. Bottom line, if you love long exposure images, and you shoot a variety of different landscapes, it might be advisable to choose three filters. A 3 stop, a 6 stop, and a 10 stop filter would be ideal.

How many stops is a ND4 filter?

How strong is my ND filter?

ND OPTICAL DENSITY F-STOP REDUCTION
ND4 0.6 2 STOPS
ND8 0.9 3 STOPS
ND16 1.2 4 STOPS
ND32 1.5 5 STOPS

How do I choose an ND filter?

What stop is ND8?

0.9 3 STOPS