Yamasaki 150mm f5.6 Congo Alto-W (Shutter) - Lens

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Model Details

Standard lens for 4x5" image format.

Alto-W series lenses contains 6 glass in 4 or 5 components. In the 150mm the front 3 glasses are all separately mounted, not balsamed; the rear are conventional 1+2 type.

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Large Format

Large format photography encompasses any format larger than medium format (120). Usually, this refers to formats 4x5 inches (9x12cm) or larger. At one point, there were other formats like half or quarter plate, but nowadays there are 3 common formats; 4x5, 5x7, and 8x10. Sizes larger than 8x10, such as 11x14, are called Ultra Large Format (ULF).

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