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Old 17th September 2015, 06:47 PM
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Argentum Argentum is offline
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delta 3200 is a basically a low contrast film designed for pushing to normal contrast. Its ISO speed is 1000 becasue Ilford use ID11 for ISO tests.

The EI of 3200 is only obtainable by using Ilford Microphen developer which extracts the most effective film speed from it. For this use stock Microphen as per Ilfords recommendations. This will give you a normal contrast negative. It will be very grainy.

Ilford DDX will get you EI 1600 if you develop 1+4 18mins @ 20degC
It will be less grainy than Microphen but still grainy.

ID11 will get you EI 1000 using Ilfords recommended dilution, time and temp

I haven't tested with Ilfosol but I suspect you will get similar EI to using DDX (120 to 1600) but certainly not 3200 without excessive development and resulting high contrast.

So essentially what mike says except if you really want 3200 speed then you must get Microphen developer
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