Hasselblad SWC, done twice, gone twice.
Primary advantage of the Biogon is excellent optical performance at full aperture of f4.5, with reasonable light fall off. The trade offs are, modest image circle, when used on 6x6 image format the square image format is not always that agreeable and if cropped to rectangular porpotions that SWC is not that "wide" anymore.. Then we have the limited image circle of the Biogon which puts a un-welcomed limit on camera movement.. many times FAR more importaint for using a view camera on a tripod or similar camera support than uber optical performance at full aperture. For hand camera images, high optical performace at full lens aperture DOES make a differnce as it allows using faster shutter speeds. The need for camera movement with a hand held camera is nil, negating the need for a wide angle lens with an image circle much larger than the film format.
It's been decades since the introduction of the revolutionary Bigon & Lamegon wide angle lens design. Since then this variaty of wide angle lens has evolved to meet the needs of real world view camera image making needs.. stuff like larger image circle, larger angle of view, center filters to correct for light fall off, optimized optical performace at f11 (APO grandagon) or f22 (most of the rest), trade offs for geometric distortion -vs- full aperture -vs- taking aperture -vs- lens size/weight and cost...
This tree image was made using a 58mm f5.6 Super Angulon XL on the Linhof TK23s with a bag bellows, 6x9 on 120 roll film. Nearly 40mm rise with combined stilt/swing to bring the bushes near the ground into percieved focus. This requires significant image circle capability from the lens. Inherient light fall off of the lens was used to advantge in the way a graduated density filter would behave. Image like this would not be possible with a Hasselblad SWC (same applies to the 40mm Zeiss Distagon boat anchor) or similar lens fixed to a light tight box camera.
Yes, the Biogon is a great lens with historical significance, but it is not in any way a magical/mircale lens. The Biogon/Lamegon needs to be used based on what these designs offer as their design optimization..
IMO, the strenghts and great advantages of what a view camera can do is not fully appreciated initially by those venturing into this view camera stuff (with a history of fixed lens box camera) until some mastery of what camera movements can contribute to a given image..
Bernice
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