Small haloed white spots

[ChrisBCS]

Forgive the crummy loupe photo. This was developed in a Paterson, Pan F 50, using FX 39, with Ilford rapid fixer.

This really bummed me out. Only frame on the roll I liked. What would cause this? Just on this one frame...

 

[Sirius Glass]

The enlarger lens does not cover the field of view. OR the lens does not cover the full negative.

 

[John Wiegerink]

Air bells! Little air bubbles adhering to the film emulsion. That's why they say "rap" the tank and then let sit after agitation. You have to dislodge those air bubbles or the developer can't reach the emulsion to do its job.

 

[ChrisBCS]

Grrr that's what I figured it was. Many thanks!

 

[John Wiegerink]

Grrr that's what I figured it was. Many thanks!

I'm not saying that with 100% assurance, but I take it you "didn't rap the tank" as expressed by your Grrr reply. If the air bells (bubble) had stayed on tor the entire process those halos would be even more pronounced, which tells me they were agitated off sometime in the development. I always give a light smack with my hand to the bottom of the tank after each agitation cycle. In all the years of doing this I can honestly say I have never had one air bell. Knock on wood I guess!

 

[ChrisBCS]

That's a grr I did rap the tank. 5th roll in this tank and this is the first time I've had bubbles

 

[John Wiegerink]

That's a grr I did rap the tank. 5th roll in this tank and this is the first time I've had bubbles

Then I'd be saying double Grrr! Did you say it is only on this frame or throughout the 5th roll? If it is on only one frame and there was a bright highlight/sun in the edge of the shot then it could be some kind of internal reflection off the lens, bellows. baffle, or?

 

[Photo Engineer]

Prewet the film!

PE

 

[ChrisBCS]

Prewet the film!

PE

Thank you, Photo Engineer. Will this change my development time? It's already pretty short for FX-39.

 

[Patrick Robert James]

I use a couple of drops of Edwal LFN in the developer. That, and whacking the tank, fix any problems you may have. Those of us around long enough to remember Kodak Infrared film learned our lessons with that stuff. Brutal it was.....

 

[Photo Engineer]

Thank you, Photo Engineer. Will this change my development time? It's already pretty short for FX-39.

It should not change time, but the developer probably cannot be reused.

PE