Development issues (possible reticulation?). Please help.

Donald Qualls said:

To my eye, those resemble the spots you'll get if the film was still cold when unsealed and moisture condensed on the emulsion. This will dissolve some of the sensitizing dyes, which will then redeposit where the droplets last existed, producing spots like what we see in the tight crop above.

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Marcelo Paniagua said:

I will take the 70mm roll from freezer two hours before cutting and see if it improves.

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Ian Grant said:

Some years ago, on an Ilford factory tour, the company mentioned that issues with frozen film were usually related to the time unfreezing. They suggested placing the film in a refrigerator over-night first (between 3º to 5ºC). Then allowing the film to warm to room temperature the next day.

Ian

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snusmumriken said:

Yes, it doesn’t look like reticulation to me.

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Raghu Kuvempunagar said:

You can perhaps fix a piece of film without developing it and check if you still get these spots.

You can also inspect the affected negative under a magnifying loupe and check if there is any physical damage.

The spots are black in the positive which probably hints at loss of density at these spots in the negatives. Could it be that your developer is Carbonate based and is producing emulsion damaging Carbon Dioxide microbubbles due to the acid stop bath? More details on your process is needed to understand what exactly is happening.

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Don_ih said:

I have a bulk roll of 70mm Aviphot that is identical to that and I never refrigerated it. I assumed the film degraded in whatever storage it was in in India.

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koraks said:

It's apparently just poorly stored film that someone cut up and put onto the market.

The problems with this product are known and have been posted here before:

Agfa Aviphot 200 damage

Purchased on eBay from India some months ago. It has been sitting at room temperature next to other film, which is fine. Pulled out 2m to test slitting and rolling. Film was intermittently sticking when unraveling. It has big ugly blotches. What could those be?

www.photrio.com

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Raghu Kuvempunagar said:

These are photographic products that the Indian military allegedly procured many years ago for its use. At some point, the original buyer stopped using the products and the already procured but unused stuff was sent to a godown. In the recent past, someone got hold of this stuff and started selling it in bulk to resellers like vintage.hut who now sell the inidividual rolls in India to local customers and on eBay to global customers. The resellers have kept the rolls in good condition, I am told, but nobody knows how the rolls were stored in the godown or after they were flushed out of the godown. It's unlikely that adequate care was taken as that these were essentially trash from the point of view of the original buyer. The rolls have been a mixed bag in my experience. I bought some Aviphot and Plus X rolls and so far I haven't had bad experiences with them. However, the one Avitone roll I bought was completely unusable. The reseller graciously replaced it with another roll which too was unusable. OTOH grade 3 RC paper from the same source is excellent and shows no base fog despite the age. Several others have used this paper and have had positive experience with it.

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Marcelo Paniagua said:

I'm getting issues with my recently developed roll of film (Aviphot) and getting some weird dots/granularity. I thought it was some kind of reticulation since there was a temperature difference between the developer and stop bath (water) or even with the fixed.

Yesterday I put all 3 liquids (developer, water for stop bath and fixer) at the same temperature and still get the same issue.


View attachment 399620

Detail:
View attachment 399621

It is more evident on clear/white areas




My last guess is either the film itself or the fixed. Dumping the fixer today an preparing new one and make a new test. I discard it as a fixer issue since I also developed some 4x5 and it was ok.

Film stock is Aviphot by the way. I had developed some rolls from the same 70mm roll without issues so not sure it is the film stock.

Any idea what this is about?

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Don_ih said:

I have a wide roll bought from India that is perfectly fine. I bought 2 rolls of 70mm and put one in the freezer. The other, I just put in the cabinet in my darkroom. That one has the same kind of spotting that is seen in post one. I've tried different developers to see if that can make a difference. have pretty much no impact. It's essentially garbage.

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