Last weekend regardless of the heatwave I decided to get myself out and shoot some daytime long exposures. I limited myself to a small area on the opposite side of the river to the Shard, an area I've not really shot before. I also wanted to do some location scouting for later in the year when the night doesn't happen at 10pm.
To get movement in the clouds in the summer you have to take exposure of over 60s. This does come with its own issues. Like dust on the lens, the slightest spec will be quite prominent in your image and will require extra work in post processing. Glare is also an issue, If there's even the slightest glare it will be very prominent. If you are using a dslr you need to cover your viewfinder too as you get strange reflections from it. To try and combat the glare I use circular nd filters rather than plate ones, its more expensive but you can use the lens hood and it massively cuts down glare issues. I had my polariser with me but in the bright sunshine and shooting at around 24mm every image would have ended up with a strange blue circle, so that didn't get used. I used a cheap cable release to time my exposures.
So armed with one lens, my camera and my larger sturdy tripod, away I went.
All images shot with Sony 24-70 f2.8