Originally posted by StiffLegged I've no idea what these marks might be, unless they are repeated along the film, in which case there might be a very slight light leak somewhere. There's no sediment or other muck in your developer, is there? Air bubbles would cause marks lighter than the surrounding negative image, not dark ones like those shown. As an aside, I had a Kestrel stainless steel tank and spiral film holder years ago and loved it, but have never seen another since. (cue eBay scouts...)
Chemicals are all new but the equipment I bought used and had been sitting in storage for a long time, so it could well have been some muck in the reels. I didn't rinse them before loading the first reel. It is thoroughly rinsed now.
Yes, this is my first time developing film.
Also, I did have my Spotmatic serviced by Erik a few weeks ago and I have noticed some black, I assume lubricant, on my finger when I load film. If that is it, I'm sure it will clear itself up after a few more rolls.