Positive Achromatic Lenses, D=50.80mm, F=200.00mm, VIS N-BK7/SF2, United Optical Technology Co., Ltd (CAT#: STEM-OP-1747-YJL)
Positive Achromatic Lenses, D=50.80mm, F=250.00mm, VIS N-BK7/SF2, United Optical Technology Co., Ltd (CAT#: STEM-OP-1748-YJL)
Positive Achromatic Lenses, D=50.80mm, F=300.00mm, VIS N-BK7/SF2, United Optical Technology Co., Ltd (CAT#: STEM-OP-1749-YJL)
Positive Achromatic Lenses, D=50.80mm, F=400.00mm, VIS N-BK7/SF2, United Optical Technology Co., Ltd (CAT#: STEM-OP-1750-YJL)
Positive Achromatic Lenses, D=50.80mm, F=500.00mm, VIS N-BK7/SF2, United Optical Technology Co., Ltd (CAT#: STEM-OP-1751-YJL)
Positive Achromatic Lenses, D=50.80mm, F=750.00mm, VIS N-BK7/SF2, United Optical Technology Co., Ltd (CAT#: STEM-OP-1752-YJL)