Hello there,
I want to take my mother and sisters portraits with 20x24 Fomabrom Grade 3 Matte Paper Negatives and contact on to the same paper.
There are 10 papers for 70 dollars at Freestyle and I can shoot only 5 frames.
I have no enlarger or timer and will use Edward Weston bulb lamp enlarging and rabbit hat shutter method.
I looked to the Edmund Scientific and there are meniscus lenses , same focal distance , different diameter.
What is the difference between large diameter lens and narrower second , third best.
AND Do I need to buy negative meniscus or positive meniscus lens ?
50mm Dia. x -505mm FL, Negative Meniscus Lens, Grade 2
36.5mm Dia. x 444.4mm FL, Positive Meniscus Lens, Grade 1
76.7mm Dia. x 324mm FL, Positive Meniscus Lens, Grade
58.5mm Dia x 350mm FL, Positive Meniscus Lens, Grade 1
http://www.edmundoptics.com/optics/o...us-lenses/3479
Umut
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