BelliniFoto Anti-Fog for Film & Paper is a product we have been asked and asked for since showing off some vintage films we processed whist using this additive.
It does appear to be a great aid towards clearing the base fog of decades old films but is not on it’s own a guarantee of acqiuring results from very old films….so many factors influence what condition an old emulsion is in, this should help with clearing the base underlying that.
It can also be used to prolong long development of paper in a tray, delaying the inevitable exposure by safelight when using longer times, you see, there are people that like to paw over their prints in order to attain results that satisfy them.
Used by adding 10ml per litre initially to your working developer, if you’re using some really old stocks and there’s still a lot of base fog then you can add more up to 40ml to help you achieve results that satisfy, but again, depending on the condition of the film this is not a guarantee of perfect results.
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George Day (verified owner) –
I did a comparison with Mr Bellini’s new anti fog and my old standard – Benzotriazole 1%. The film used was 2 rolls of 122 Verichrome Pan both expired May 1966 shot with my Graflex 3a at ISO 8 in blue sky conditions. First roll Dev in 1ltr of HC110 dil B @16C for 7.5min with 15ml of Bellini anti fog – normal agitation. Second roll Dev in 1 ltr of HC110 1:60 @13.5C for 19min with 15ml of 1% sol Benzotriazole – agitated every 2-3min. So the second roll should have stood a better chance of less fog due to lower temp and dilution/time factor, however I found the Bellini anti fog did a better job and faster at higher temp. However I will now use for this age and type of film 1 ltr of HC110 1:60 & 20ml of the Bellini product at 13C for 21min which should produce even better results! For those not familiar with 122 film it is 5 1/2 x 3 1/4 inch and was called postcard size and was used for contact prints.