[pure-silver] Re: under-developed?

There is shadow detail and the edge markings are very dark gray. Maybe almost black. The edge/base is the same sort of light gray as parts in the image. The negatives just look sort of blah, though they print ok. Maybe it's slightly fogged? 


On Feb 18, 2007, at 6:40 PM, Richard Knoppow wrote:



----- Original Message ----- From: "Janet Cull" <jcull@xxxxxxxxxxxxx>
To: <pure-silver@xxxxxxxxxxxxx>
Sent: Sunday, February 18, 2007 2:47 PM
Subject: [pure-silver] under-developed?
Can anyone describe what film looks like when it's under developed? Thanks. 

Janet
Low contrast and low density. The best clue is probably the edge markings. These should be dark gray or black. Negatives which have been properly exposed but underdeveloped are often printable by using high contrast paper. The disavantage is that the increased contrast will also exagerate any blemishes or dirt on the negatives and any uneveness of illumination in the enlarger. It is possible to increase negative contrast by intensification but there are hazards to it and most methods increase grain. Probably the safest method is Selenium toning but this produces only a modest amount of intensification. Reportedly Kodak Brown Toner will also work as an intensifier. Neither of these will damage the image. Intensifying may be result in more satisfactory prints than high contrast paper. Note that if there is _no_ shadow detail at all neither the use of high contrast paper or an intensifer will supply it. This is more often the case for underexposure than underdevelopment. 

---
Richard Knoppow
Los Angeles, CA, USA
dickburk@xxxxxxxxxxxxx
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