Starting point for ILFORD Delta 400 in XTOL 1+1 @ 1600 E.I ?

Discussion in 'B&W: Film, Paper, Chemistry' started by Tom Kershaw, Oct 2, 2011.

  1. Tom Kershaw

    Tom Kershaw Subscriber

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    While acknowledging the usual provisos and the massive development chart et al. does anyone have a good starting point for Delta 400 in XTOL 1+1 using an exposure index of 1600 (Mamiya 7II negatives)? I'd have thought about 20 minutes @ 20ºC / 68ºF but on second thoughts this seems slightly long.

    I'm using stainless steel tanks and reels (hand agitation).

    Tom
     
  2. MrclSchprs

    MrclSchprs Subscriber

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    Why not start with 20 minutes and take it from there? The Massive Dev Chart's main purpose is to provide starting points.
     
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  3. pentaxuser

    pentaxuser Subscriber

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    Tom, the Kodak specs says 14.5 mins v MDC's 20 mins. This difference is so large that one of these is likely to be wrong, I would have thought.

    Occasionally manufacturer's times are wrong. D3200 is a good example of this where the time for the next speed is better but I am suspicious about 20 mins as it's nearly 50% more.

    pentaxuser
     
  4. MattKing

    MattKing Subscriber

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  5. Tom Kershaw

    Tom Kershaw Subscriber

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    Thanks Matt for pointing that out, I'd missed it.

    Tom