It might be a surprise to you that I used only a compact Panasonic GX7 in conjunction with an Olympus 45mm F1.8 lens at that time. I was going to take some snap shots for the scenery at Weston Super Mare sea front four years ago but when I arrived there I saw numerous seagulls flying around everywhere. Many of them were so closed to me that I thought the tiny Olympus lens which I got was adequate enough for the job. After I got home, even I was amazed with the results overall.What camera equipment did you use for these shots?..they are exceptionally sharp detailed images..