it's not very often we get a "blue sky" day in the UK, even in the summer. they seem to happen when I'm at work!. Today was an exception, we had a good day when I had a day off. so I grabbed my camera bag and tripod and went to my local park to get a good chance to try out my new lens, a Sigma 100-300 f4, i was pleased with the results. please feel free to leave any comment, good or bad.