NEED HELP! All my negs are empty!

[koraks]

Logic and chemistry dictate you're right, but now it has my curiosity up. Since we develop the "latent image", could it be the latent image actually is a faint image on its own, barely visible after fixing with no development at all?

Mind you, I'm not curious enough to waste a piece of film trying it...

The latent image does indeed consist of metallic silver that theoretically wouldn't be fixed out. But since the amplification during development is something like a factor of 10 or 100 million, the qualification "faint, but unusable" for the fixed and undeveloped latent image seems beyond reasonable doubt - with a very heavy emphasis on "faint", that is...

[John Kasaian]

film is being loaded BACKWARDS, perhaps??? check your film holders.

Yep. In what corner are the film notches? Should be top right or lower left.
If they're on the top left or lower right the film was loaded with the emulsion side facing the septum instead of the dark slide

[Leigh]

Hey, I'm the humblest person ever! Ain't no one as humble as me!

It's easy to be humble when so many good reasons exist to do so.

- Leigh

[Mark Sawyer]

It's easy to be humble when so many good reasons exist to do so.

- Leigh

Oh, you're just jealous because I'm humbler than you.

[neilt3]

I thought I had tested the flash sync on "M" first and then "X", but when I went back to the camera it was still set on "M". Another test with the sync set to "X" and I now have a properly exposed image! Thank you everyone for your suggestions and comments, it is great to have fellow film lovers to double check my work!

Edit: I found the culprit! The way I was holding my shutter release cable was flipping the sync switch to "M". Flipping the lens around fixed it!

I have a few lenses whose flash sync lever move a bit too freely , I put a piece of electrical insulation tape over it to prevent it getting moved by accident .

[consummate_fritterer]

oh, you're just jealous because i'm humbler than you.

lol!!!

[jpheneger]

I have a few lenses whose flash sync lever move a bit too freely , I put a piece of electrical insulation tape over it to prevent it getting moved by accident .

I may need to do that, for now I simply turned the lens so the cable is pointing up and the lever is below it. Hopefully that fixes the problem.

[docw]

Never noticed it on FP4 before. My bad!

I know that the OP's problem has been solved but...

I am not getting this, i.e., edge markings on LF. All my LF film has notch codes but no numbers on the edge of the film. I only see that on 120 film. I have a pile of FP4 right in front of me and there are no numbers on the edge. Am I misunderstanding this?

[jpheneger]

I know that the OP's problem has been solved but...

I am not getting this, i.e., edge markings on LF. All my LF film has notch codes but no numbers on the edge of the film. I only see that on 120 film. I have a pile of FP4 right in front of me and there are no numbers on the edge. Am I misunderstanding this?

I don't see them on any of my negatives either.

[Mark Sawyer]

I double-checked my 8x10 fp4 and hp5 negatives, no edge markings, just the notches. I do remember seeing some old 4x5 Kodak color transparencies with the developed-out markings, but I can't remember what it was.