Nothing conclusive to report yet, but t would be rude to not to update everybody who took the time to offer advice.
On Saturday I went back to Hannington and the same problem manifested itself. I had copied my C1 and C2 into C3 and C4 which were then modified as per Jeff's suggestions.
I have also done some tests in my back garden. I compared shots taken with my EM1 and my Canon EOS250d. The EM1 shots didn't look great, but the Canon shots were similar but even worse!! So perhaps there is something about the quality of the light at this time of the year??
The thing that convinced me that something was wrong was the view on the LCD as I was trying to focus. At 14x mag the image appeared to be vibrating in and out of focus at a somewhat variable rate. I'm now wondering if atmospheric conditions could cause this? The vibrations were much, much faster than anything that any heat haze effects that I have seen...
It definitely isn't a lens issue, as I have tried the 40-150 lens and it shows the same effects.
My current thoughts are that I simply need to get to know my camera better, and learn about how the lighting affects things. I will report again when I have learned a bit more.
I did experiment with 5 x slow motion 120 FPS video on Saturday, and the results are quite magical. A pair of kites performed an incredibly graceful dance in the air accompanied by some seagulls that slowly drifted in and out of frame.
On Sunday I discovered a location where there is a resident owl that I am told always comes out when headlights are turned on at night. Any advice on how to try to capure this would be very welcome!
I also got this quite late in the day as the light was fading...
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