Developing a reversal film as a neg. (Pan-x Reverso Super 8.) Change ASA rating???

Hi.

I am using Adox Pan-x Reverso Super 8. I want to develop it as a neg.

Someone just told me they have been advised to overexpose Tri-X Super 8 by 1 stop when developing to neg.

Do I need to worry about this in my case?

Pan-x Reverso Super 8 (100 asa) is the same emulsion as 35mm Silvermax 100. There is nothing on Adox site that says you have to change the ASA rating on Silvermax if you switch between negative and positive processing.

Pan-x Reverso Super 8 and Silvermax 35mm are both rated as 100ASA. The first being sold as a reversal film and the latter as a negative film (which can be reversed).

[I wonder - does anyone know how to ask Mirko at Adox?]

(there was a url link here which no longer exists)

You should be able to pitch up Mirko from this thread.

Your reversal film may need reversal process if it's anti halation layer is silver.

Xmas said:

(there was a url link here which no longer exists)

You should be able to pitch up Mirko from this thread.

Your reversal film may need reversal process if it's anti halation layer is silver.

Click to expand...

Thanks, I'll try and contact him.

With regards the anti-halation layer. Would that not also be on the 35mm version. Seems they say it's the same film as the Super 8

Proof is in the pudding. Pan-x reverso at 100ASA. Silvermax dev. 11m. Photographed crudely from the lightbox and inverted, levelled.




Note. Weirdly, one test strip I ran through is opaque but the image just visible on the emulsion. Could that be an anti-halation layer? Not clear what happened with that one.

Did you ask Mirco or get a data sheet?

I've sent him a pm. Waiting to hear back.
I don't have a data sheet.

I have a bunch of small pre-exposed strips of pan-x from a while back, so I used one of those. I hunched it would be the same dev time as the 35mm silvermax.


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I should have said I was impressed if it has a silver layer and you managed to bypass it.

Some need the reversal bleach to clear a (the) silver layer.

Xmas said:

I should have said I was impressed if it has a silver layer and you managed to bypass it.

Some need the reversal bleach to clear a (the) silver layer.

Click to expand...

I'm not clear on antihalation and why it's only a problem for films sold as reversal films.

I found this on the Adox site for Reverso:

• An anti halation layer between the base and the emulsion yielding crips images and finest details even at high magnification factors.

So, where did it go? Or what is it made from? Does the 35mm Silvermax have one?

As I said I have one strip that from a canister mis-named 'pan-x', that is solid. I re-fixed it as I thought it had not cleared but it made no difference. I have scanned and intensified the dark image on it. I now see that is from a piece of Foma Super 8. So, lesson is that the anti-halation layer on Foma will prevent its use as a negative.

I'm going to scan the Pan-X properly later to get an better image from it.

Did anyone find a solution to the problem? I am planning on using a series of Adox Pan-X 100 Reverso films on a short music-video and were wonderin what my limitations are if I develope it as a negative?