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    Tetenal Neofin Blau 1 Shot Developer 6 x 50ml

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    Tetenal Neofin Blue is a one-shot developer for B&W negative films, ideal for low to medium speed films.

    One-shot developer for b/w negatives with the highest resolution and exceptional sharpness. The film's speed is fully exploited. Ideal for slow/ medium speed films.

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    Neofin Blue negatives are characterized by a high acutance and a detailed shadow reproduction. The formula is designed for the processing in developer drums, e.g. such as Jobo or Paterson. Dispose of the used working solution after processing, due to exhaustion.

    Neofin Blue comes in a box with 6 bottles, each containing 50 ml of concentrate for mixing 300 – 700 ml of working solution.

    250 ml water + 50 ml concentrate or
    450 ml water + 50 ml concentrate or
    650 ml water + 50 ml concentrate.

    The choice for a certain dilution depends upon the size of the developer drum and the chosen developing time. A basic rule is: higher dilution = longer time and vice versa.

    Most common dilutions are to 300 ml and to 500 ml, while a dilution to 700 ml is possible only with selected films, such as Rollei Retro 80 S, RPX 25, Ortho 25, Superpan 200 and Foma 100, which require a developing time of not more than 10 minutes for the 500 ml dilution.

    The developing times for the 700 ml dilution result from multiplying the times for the 500 ml dilution by factor 1,5 (guide value).

    Originally packed the concentrate has as shelf life of approx. 2 years. Fresh working solution has to be used shortly after mixing.

    Developing is at room temperature, generally at 20 °C. You can adapt the developing time, if higher or lower temperatures are used.

    Depending on the film used and the chosen dilution the factor of the reduction or the extension of the developing time differs: the rule of thumb is factor 1.2 at 18°C, factor 0,85 at 22 °C and factor 0,75 at 24°C.

    Vary between 2min for the Rollei Retro 80 and 12min for the Adox Silvermax or the Kentmere 100

    Agitate the developer drum continuously for the first 30 seconds, afterwards agitate (tip over) once every 30 seconds. Processing in rotary tube processors is not recommended.

    Users who have been working with the former version of Neofin Blue (Art.No. 100126) can change to the new Neofin Blue (100127) with their previous developing time and agitation mode, provided that the mixing volume had not changed (e.g. 500 ml). Of course alternatively the new instructions with new agitation technique and new process times can be applied.

    SKU 100127
    Video No

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