Maybe a hint of dew? I say that only because I have traced so many "issues" from time to time to dew...and yes dew heaters etc but somehow a big "surge" of moisture gets past stuff sometimes to leave a hint but goes away leaving a mystery...Anyways I would not be too worried as you may find next session there is no issue...take time to realise that you produced a great image ...seriously very well done.
Alex
|