Hi, I have recently purchased a 5x4 tachihara and have taken a few pictures. How ever, they all seem to be of too low contrast. I downrate the film (usually to a bout half the asa on the box) and underdevelop by about 20% to retain shadow det ail. The worst was HP5+ in rodainal. Why should this be, and what can i do in fu ture. Does the problem lie in exposure or processing. Thanks
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