It's all in the family: Tomioka EL
These enlarging lenses may have different names, but they all come from the same manufacturer: Tomioka Optical. They're branded as "Osawa Tominon EL", "Hoya Super EL", "Bogen" or "Omicron-EL" and they come in focal lengths of 40 mm, 50 mm, 60 mm, 75 mm, 90 mm, 105 mm and 135 mm, though not all brands are available in all focal lengths.
Shot with a "Bogen WA 60 mm F 4" enlarging lens (the twin brother of the Tominon 60 mm...) on a Canon EOS R5.
It's all in the family: Tomioka EL
These enlarging lenses may have different names, but they all come from the same manufacturer: Tomioka Optical. They're branded as "Osawa Tominon EL", "Hoya Super EL", "Bogen" or "Omicron-EL" and they come in focal lengths of 40 mm, 50 mm, 60 mm, 75 mm, 90 mm, 105 mm and 135 mm, though not all brands are available in all focal lengths.
Shot with a "Bogen WA 60 mm F 4" enlarging lens (the twin brother of the Tominon 60 mm...) on a Canon EOS R5.