Originally posted by angkymac PS. Curious about what camera and lens was used.
Thank you for your comments.
Since this was film, EXIF is no help, so I had to dig back in my old records.
I took all pictures that day using Kodak 'KM' - Kodachrome 25 film - with my Pentax-A f/1.7 lens on my Pentax "Super Program".
From the look of the photographs, the weather was not good, but I was in mid-roll.
From DOF, I must have used f/8 or smaller, so the shutter speed must have been slower than I usually used for that kind of photo, but I don't think anything was moving [other than the amorphous steam}.