Bits & Pieces |
Using Photographers' Formulary BW-65 Liquid Paper Developer for
Paper and Film
I had intended to test the second half of my latest batch of emulsion with a number of different developers to see if I could get the contrast up for enlarging. I started with BW-65, a developer I've never used before, and then stayed with it for the whole batch. I'm very excited about its qualities. More about paper development below, but first, a little about BW-65 as an artisan film developer. The first print here is a 1.25 x 0.8 inch crop from a 3-1/4 x 2-1/4 inch negative ('TLF #1' on Melenex ). I scanned the negative in a film scanner and cropped and enlarged in Photoshop. The only tools used were an unsharp mask and a shallow curve. Below is the negative and the uncropped print. It was a very dark day and the hammock was tied under a tall, dense Western Red Cedar tree. Still, the exposure was only 5 sec at f/11. Even better, the development in BW-65 (1:1:1) was only 5 minutes. The resulting negative has great contrast. I'm particularly pleased with the outcome because this piece of film was made last July. I set aside six loaded Baby Graphic holders to pull out periodically to test for age-related fog. The film is as clear as when it was fresh, and maybe a tiny bit faster. BW-65 is very easy to use and if it is suitable for both film and paper, it will probably become my primary developer, for a while at least. With my next batch of paper, I'll see how this negative enlarges. It is considerably denser and higher contrast than the negative I used for my first enlarger experiment. | ||
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A Fun 'New' Tool to Test Paper
I love to root through bins of old photos in antique stores. Last weekend I found this treasure. I think the original intention of the film was just for visual comparison, but I contact printed it with a variety of exposures and developed the prints in both my standard Defender55Dwr (aka Def) here and BW-65. I also learned a bit about scanning badly tarnished film. If you look straight through this negative at a light, it looks fairly normal, but if you tilt it at an angle to the light, the tarnished areas look positive. Below, left: The negative scanned on a flatbed, emulsion down. The scanner saw the emulsion like I saw it when I tilted the negative to the light. It recorded the little girl on the left in the top left frame as a positive image. The middle frame is the film scanned emulsion-side up (and then flipped). The scanner light didn't pick up the tarnish and the scan inverted well, although considerable Photoshop work would be required to make a 'good' print. | |||
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Below left: exposed for '2' and developed in BW-65 (1:1:5). Below right: exposed for '2'and developed in Def. | |||
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BW-65 rendered a softer, smoother density range. I got the same result with prints of a step tablet. The tablet developed in BW-65 picked up four more steps than the Def version, three of those steps on the shadow end. | |||
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Straight computer crops of the above prints, upsized without additional work. |
Beach Girl Comparison
The differences between the two developers is evident here. I scanned the three strips together — 'I ♥' developed in Def on the left, the original Azo (unknown developer) in the middle and 'I ♥' developed in BW-65 on the right. Taking into consideration the difference in surface texture (the Azo print is single weight glossy). I think the the Def version is more faithful to the original, but I think that I prefer the BW-65 rendition.
Note: I do not have a financial relationship with Photographers' Formulary. They have not asked me to test and/or endorse their products. To my knowledge, they don't know that I am doing so. I have paid for all products being tested. I will be teaching workshops at their Montana headquarters this coming summer and I am trying out a variety of PF products for my own information and for the convenience of my students. (dwr: March 3, 2010) |
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