HELP! problem scanning or problem during developement

[Disaster_Area]

just getting back into film and just developed my first roll in over 10 years! It's HP5 scanned on a Canon 4400 flatbed. Some of the frames are exhibiting an effect I can only discribe as molten moire. Here's an example:

did I do something wrong while developing? or do you think it happenned during scanning? I'm wondering if it's streaking due to film surfaces touching in the tank. But it looks suspiciously digital to me.

 

[iamzip]

I think it happens during scanning - I just got an Epson 4490 a few days ago and got a scan with similar markings. While I don't know for sure, having just gotten into scanning negs, my belief is that it has something to do with the film not being perfectly flat. I've got some negatives being pressed in a book, and we'll see how those scan after a few days.

 

[Gabriel M.A.]

Actually, it looks like it's the "Newton rings" effect. Happens when you lay film directly on the surface of the scanner's glass. That's why you need to use the provided film holders.

If you are, then your negative is so curled, that that portion is hitting the glass of the scanner.

 

[Disaster_Area]

yeah.. that was my first impression.. I scanned these as soon as they dried.. I knew I should have flattened them overnight but I just couldnt wait too see how the first roll turned out 🙂 I'm flattenning them now and will try again tommorrow. At least it's fixable if it IS the scanning as at least 75% of the roll turned out just fine. I can always scan again, but once it's souped it's souped 🙂 I couldnt remember any of my negatives from highschool turning out like this and the developement conditions back then would have made most of this forum shudder. Developer in a big jug, no idea what kind, what concentration.. no stop.. fix in a big jug used and re-used a hundred times a day and I have no idea how often they made new stuff. The water in the taps fluctuated about +/- 10 degrees constantly.. I dont even think there was a thermometer in the room. My photo teacher was an english teacher that took a week long course 20 years ago and so was the most qualified. Dev times? and I quote and will remember for a long time "well you pour enough to fill your tank from this jug.. give it a good shake.. then shake it again every minute or so.. should take about 5-10 minutes, you'll figure it out after a dozen rolls or so". And I never got weird patterns like this.

 

[aad]

Yep, newton rings, you're seeing light bands. If the film touches either the top or bottom glass you'll see this. I don't know if Doug Fisher makes anti-newton glass holders for your scanner, but if the film doesn't flatten enough in the holder give him a try.

 

[jlw]

Yep, they're Newton's rings caused by partial contact between the film and the glass.

But you might try passing them off as UFO pictures -- maybe you could get them on CNN!