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228mm/T4.4 Bausch & Lomb Super Baltar | True Lens Services repair, service and test film and video lenses. Lens engineers who are specialists in all aspects of precision engineering
![File:BAUSCH & LOMB, IRIS DIAPHRAGM, shutter, 1891, lens Rapid Universal, 6,5x8,5 (17449816548).jpg - Wikimedia Commons File:BAUSCH & LOMB, IRIS DIAPHRAGM, shutter, 1891, lens Rapid Universal, 6,5x8,5 (17449816548).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/6/68/BAUSCH_%26_LOMB%2C_IRIS_DIAPHRAGM%2C_shutter%2C_1891%2C_lens_Rapid_Universal%2C_6%2C5x8%2C5_%2817449816548%29.jpg)
File:BAUSCH & LOMB, IRIS DIAPHRAGM, shutter, 1891, lens Rapid Universal, 6,5x8,5 (17449816548).jpg - Wikimedia Commons
![File:BAUSCH & LOMB , ÍRIS DIAPHRAGM SHUTTER, brass, 1891, lens Rapid Universal 6,5x8,5 (17637135141).jpg - Wikimedia Commons File:BAUSCH & LOMB , ÍRIS DIAPHRAGM SHUTTER, brass, 1891, lens Rapid Universal 6,5x8,5 (17637135141).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/c/cd/BAUSCH_%26_LOMB_%2C_%C3%8DRIS_DIAPHRAGM_SHUTTER%2C_brass%2C_1891%2C_lens_Rapid_Universal_6%2C5x8%2C5_%2817637135141%29.jpg)