We’re having some stormy days in Dorset lately which is a good excuse to get the tripod and neutral density filters out and do some long exposures on the coast. All shots on a Canon 60D using a Sigma 10-20mm f4-5.6 lens.
There isn’t a great amount of light around, but if shutter speeds of up to thirty seconds at ISO 100 are to be used, a x8 (three stop) ND filter isn’t enough by a long way. There were all taken using a stacked pair of x8 and x64 (six stop) Hoya ND filters and even then f16, f22 and f32 were all used to get long enough shutter speeds. The first myth to be debunked here is that old rule ‘never go below f16 – resolution will suffer because of diffraction’ – here the advantage of a slow shutter speed easily outweighs any slight softness created by a small aperture so just use it anyway!
Surprisingly there was no vignetting from the stacked filters.
The second golden rule which didn’t seem to apply was that muck on a wide-angle lens at small apertures will spoil a shot as it will be visible. I’ve always meticulously cleaned the front filters of such lenses, but despite the front filter being caked in dried salt and sand by the end of this shoot nothing was visible on the shots – at 10mm focal length using f32 in some shots! Something else not to worry about!
It’s best to take lots of shots at different apertures and shutter speeds as the variation between different wave timings and slow shutter effects is remarkable. I couldn’t predict how the waves were going to hit the beach so just took ten or so shots at each tripod location – even then some weren’t too good. This is pot luck in short!
A heavy tripod is recommended and even then don’t extend it but use it at it’s lowest setting with the centre column down. Strong winds were shaking the camera with the legs extended by even one section and if it blows over onto rocks in salt water it’s probably time to wave the camera and lens goodbye….
I had more difficulty than ever keeping the horizons straight so several of these were straightened in pp. Composition in a gale is more difficult than it looks even using the flip out LCD and grid lines – the viewfinder is very dark due to the ND filters and close to the ground which means it isn’t very comfortable to use.
For these conditions shutter speeds of 2 seconds to 15 seconds produced the best results. At 30 seconds the sea became too ‘blurred’, below 2 seconds and not enough movement was captured.
A very different location – the sheltered marshes behind the dunes at Studland and the pool surface was just being ruffled by the wind.
Next a similar shot at the same location.
Finally it’s worth mentioning that the most important kit when shooting stormy weather near the coast isn’t camera kit at all – good outdoor clothing is essential otherwise you’re likely to get freezing cold and wet – not good for concentrating on photography (sorry to nag).
The best part of shooting in bad weather is that you feel that you’ve done something productive rather than sit around indoors and I really must do more of it. With better boots, a towel and a spare set of socks next time though.
Thanks for looking – hope you like them!