Thank you for your very satisfying comments, I did not expect to receive such expression.
It would have been whole if the geese calls could have been heard, the energy surrounding this event is pure positivity.
My brother and I were both first time visitors to see this event, and after enquiring in the car park for directions to the viewing points we found many of the individuals turning up were on their first visit to. On the shoreline there were about 50 - 70 spectators, I.m sure we all have a indelible memory.
For the sensor part, I was shocked to by the visible spots, on the previous day to the trip, I cleaned the lenses I was taking, I cleaned the mirror in the body, and when pointing the body/lens to the bright sky on a tripod, I could see the two stubborn spots that did not lift on my
recent sensor clean. I did a full sensor clean and the worst offending spot was now a ghost of a mark and there was a spec mark in the bottom left of the view finder. I was happy to use the set up like this.
I will check it out again today, in the bright light.
I may have created a problem by swapping the body across two lenses. The conditions on the coast in the dark were very cold, and there was a moisture in the air. Our ruck sacks were wet when removed from our backs. I set up two individual lenses on separate tripods, and was swapping the body between the lenses. All the kit was stored in a ruck sack bag in the warm house and then in a well heated car for about a hour on the journey. The ruck sack has a camping mat inside as a padding for extra protection, so you could say a insulated sack.
I,m just wondering if condensation collected when the camera internals, or rear lens element was exposed to the damp outside air ?
All will be revealed today on my investigation of the sensor.