Well, I finally got my hands on a 10 stop filter. Not the B+W I had originally hoped to get, they seem to be rather hard to get hold of just now in the UK, but a Heliopan ND3.0. After a little bit of research it seems that this filter is rated as highly as the B+W so when TeamworkPhoto on Ebay put a stack up for sale at a slightly lower price than the B+W versions a sale was inevitable. At a touch under £100 for a 77mm version it might seem expensive for a little bit of round glass but it’s when you start to use these things you can see the quality and exactly what your paying for.
This particular filter is the slim version so it fits nicely onto my Sigma 10-20mm lens and I can attached the 77mm p series adapter ring to it to allow me to use the CPL and grads easily too. The lens is usable at around 12mm upwards otherwise you do start to photograph the edges of the filter holder, which isn’t too bad as even without the 10 stop in place you get this same effect at around 11.5mm so no great hardship there.
First thing I noticed and it’s fairly obvious really, you simply cannot see a thing through this filter. It’s that dark. Hold it into very bright light, i.e. into the sun and you could just about compose a shot but with grads and a CPL in place as well, not a hope. This means the shot has to be composed on the tripod (obviously); the head locked in place and then carefully fit the 10 stopper and slip the filter holder with the grads on. Bit fiddly but you won’t be taking that many shots with this arrangement in place since you’re likely to be playing around in the 3 minutes exposure mark.
This was the first attempt with the 10 stopper. Taken on Calton Hill in Edinburgh, just the 10 stop and CPL in place. VERY bright light, around 5pm with a clear blue sky and, unusually for Scotland, a nice bright sun. 3 minute exposure and it’s nicely done the trick I wanted and got rid of all the tourists walking about in front of the monument, which was sheer luck not of them stood still long enough to get into the shot.
I did have another attempt later the same day at Newhaven Harbour and got some cracking results but the sea was rough, the wind was terrible and the grads were picking up spray all over and the shots were frankly unusable as a result. Lesson learned there.
Next night out was the Forth Bridges. A very familiar subject so a good place to test the filter out. I started around 7.20pm, approx an hour before sunset with the tide coming in and the sun still quite high above the Road Bridge. It seemed pointless to go shooting into the sun so I took a shot of the rail bridge with the rocks in the foreground getting covered by the incoming tide. This was a 4 minute exposure with the CPL and Hitech 0.6 ND soft grad. Very impressed at the lack of colour cast from the grad with the 10 stopper, at least if your not looking into the sun with it.
As the sun went further down I moved to the other side of the rail bridge to get the sunset with both bridges in the shot. A popular spot for photographers and sadly, the ned element of South Queensferry too it seems.
This was the last of my 10 stop shots for the night as exposure times were getting way too long with the decreasing light. This was a 331s exposure with the 10 stopper, CPL, ND0.6 soft grad and a light tobacco grad, ISO200 f11.
I have to say I’m enjoying the learning process with this new filter although my usual hit and miss method of calculating exposure times is going to get very tiring very fast. To that ends I’ve found an iPhone app called Long Time that does the calculation for you which I’ll give a trial of next time I’m out which will hopefully see the end of hit and miss results guessing exposure times.