790mm F:5.4 LF & ULF Lens Data
My 790mm F:5.4 Wollaston Meniscus lens will be available in a few days, but until then, here 's a data sheet covering the image circle, bellows draw, and effective apertures at various focusing distances.
Notice that it covers a 1425mm (56") diameter circle at infinity, and well over 1830mm (72") !!! when focused at 3 meters (10'). The folks shooting huge wet plate and paper negative portraits now have a really fast lens for ULF alternative photography.
Some photos from the 790mm lens
Today I made two paper negatives so you could see how the lens performs at various f:stops.
One shot was at f:6.7 to illustrate soft glow, the other shot was at f:22 to illustrate a soft/sharp rendition.
These are scans of the paper negatives, (no post-scan sharpening was done to either photo.).