That's a cracker. It looks like you might need to clean your sensor?
That's a brilliant picture.....
jack have you had success at cleaning a sensor , i have had similar issues and really have not been able to clean it well.
Hopefully just on the lens as it was windy down there, thanks for heads up, have got rid of them in PS!
I bought a kit which included a dust puffer, swabs and cleaning liquid. Quite cheap on-line.
Didn't realise you still visited those websites Uncle Jack !!!!