Why use ND filters for Time-lapse?
I’ve been struggling with creating a good panning time-lapse using Circular Polarizers since…well since I started using the combination. The sky is never consistent and the darkening effect uneven.. So I invested in a professional level ND filter system from Lee, a UK based filter company.
It’s not cheap to start but the quality is incredible. There is no colour cast on the image, all the filters do is limit the light. This means I can either open up the iris for really shallow depth of field or keep the shutter open for much longer and still have a properly exposed shot.
This shutter dragging is what I’ve been looking for with Time-lapse sequences and the Lee system allows me to stack multiple filters together to really dial in the effect. The system also allows me to start with say 3 filters, then as the sun goes down I can remove them one at a time whilst adjusting the camera’s exposure to transition from day to night.
Yesterday was the first field test so I packed my gear and headed for one of Palau’s secluded waterfalls.
Using a 0.75 filter I could drag the shutter to 1.3 seconds blurring the water nicely.
If you would like to do sunrise or cloud time-lapses this filter system is also very handy. It’s quite possible to have 3, 4 or 5 second shutter speeds enabling the clouds in each frame to blur allowing a much smoother, less staccato time-lapse.
Watch this space for more insights into these freshwater environments or check out this section of my portfolio for creatures I’ve already filmed at other waterfall and freshwater locations in Palau.