This was a great picture for me because I finally managed to coordinate a large aperture, fast shutter, and strobe to effect a dark background. The anchor betwen the Rozi and P29 was littered with nudibranchs, among them a Cratena peregrina and some Flabellina affinis.
SONY DSC-RX100M4camera make and model
1/400 secondsexposure time (shutter speed)
62 mmzoom (focal length)
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