This is a plano-cylindrical lens. These lenses have a defined magnification in one direction, and perpendicular to that direction they are effectively ‘unpowered’. Cylindrical lenses find numerous applications in holography, as well as imaging elongated slits in spectrometers and monochromators.

Characteristics of this lens include:
� Focal length – Positive 75mm
� Length – 40mm (cut down)
� Width – 25mm
� Manufacturer – Unknown
� Part number – Unknown
� Glass type – BK7 ?
� Uncoated
� Condition – no visible defects

Please note – unless we are able to determine that a lens is a higher precision type (either by part number or by nomenclature on the lens itself) then it should be assumed that the lens has a low precision figure. When we have determined that a lens is definitely a low precision grade, then that will be stated in the lens characteristics.

This lens is mounted in a nested ring mount. The inner ring is 54mm in diameter with a 40mm central aperture. There is a cover plate to bridge the milled gap for the lens. This cell in turn fits into another ring 60mm in diameter.

Photo set 1458
***MPN
***OEM Custom
***SKU*** 21487

This is a plano-cylindrical lens. These lenses have a defined magnification in one direction, and perpendicular to that direction they are effectively ‘unpowered’. Cylindrical lenses find numerous applications in holography, as well as imaging elongated slits in spectrometers and monochromators.

Characteristics of this lens include:
� Focal length – Positive 250mm
� Length – 60mm
� Width – 50mm
� Manufacturer – Unknown
� Part number – P-8200-60
� Glass type – BK7 ?
� Uncoated
� Condition – no visible defects

Please note – unless we are able to determine that a lens is a higher precision type (either by part number or by nomenclature on the lens itself) then it should be assumed that the lens has a low precision figure. When we have determined that a lens is definitely a low precision grade, then that will be stated in the lens characteristics.

Photo set 1455
***MPN P-8200-60
***OEM Custom
***SKU*** 21484

This is a plano-cylindrical lens. These lenses have a defined magnification in one direction, and perpendicular to that direction they are effectively ‘unpowered’. Cylindrical lenses find numerous applications in holography, as well as imaging elongated slits in spectrometers and monochromators.

Characteristics of this lens include:
� Focal length – Positive 250mm
� Length – 60mm
� Width – 50mm
� Manufacturer – Unknown
� Part number – 39012
� Glass type – BK7 ?
� Uncoated
� Condition – no visible defects

Please note – unless we are able to determine that a lens is a higher precision type (either by part number or by nomenclature on the lens itself) then it should be assumed that the lens has a low precision figure. When we have determined that a lens is definitely a low precision grade, then that will be stated in the lens characteristics.

Photo set 1454
***MPN 39012
***OEM Custom
***SKU*** 21483

This is a plano-cylindrical lens. These lenses have a defined magnification in one direction, and perpendicular to that direction they are effectively ‘unpowered’. Cylindrical lenses find numerous applications in holography, as well as imaging elongated slits in spectrometers and monochromators.

Characteristics of this lens include:
� Focal length – Positive 80mm
� Length – 35mm
� Width – 28mm
� Manufacturer – Unknown
� Part number – Unknown
� Glass type – BK7 ?
� Low precision figure
� Uncoated
� Condition – no visible defects

Please note – unless we are able to determine that a lens is a higher precision type (either by part number or by nomenclature on the lens itself) then it should be assumed that the lens has a low precision figure. When we have determined that a lens is definitely a low precision grade, then that will be stated in the lens characteristics.

This lens is mounted in a graduated Newport rotating ring mount, model LM-2R.

Photo set 1451
***MPN
***OEM Custom
***SKU*** 21480

This is a plano-cylindrical lens. These lenses have a defined magnification in one direction, and perpendicular to that direction they are effectively ‘unpowered’. Cylindrical lenses find numerous applications in holography, as well as imaging elongated slits in spectrometers and monochromators.

Characteristics of this lens include:
� Focal length – Negative 90mm
� Length – 60mm
� Width – 50mm
� Manufacturer – Unknown
� Part number – Unknown
� Glass type – BK7 ?
� Precision
� Uncoated
� Condition – no visible defects

Please note – unless we are able to determine that a lens is a higher precision type (either by part number or by nomenclature on the lens itself) then it should be assumed that the lens has a low precision figure. When we have determined that a lens is definitely a low precision grade, then that will be stated in the lens characteristics.

This lens includes a plain aluminum double-ring mount. The outer ring is 3.875 inches in diameter. The lens is mounted on an inner sleeve which can be oriented within the outer sleeve and clamped. The sleeves are both 1/2 inch in thickness. The clear aperture of the inner sleeve is 65mm.

Photo set 1449
***MPN
***OEM Custom
***SKU*** 21478

This is a plano-cylindrical lens. These lenses have a defined magnification in one direction, and perpendicular to that direction they are effectively ‘unpowered’. Cylindrical lenses find numerous applications in holography, as well as imaging elongated slits in spectrometers and monochromators.

Characteristics of this lens include:
� Focal length – Negative 250mm
� Length – 60mm
� Width – 51mm
� Manufacturer – Melles Griot
� Part number – 01-LCN-011
� Glass type – BK7
� Low precision figure
� Uncoated
� Condition – no visible defects

Please note – unless we are able to determine that a lens is a higher precision type (either by part number or by nomenclature on the lens itself) then it should be assumed that the lens has a low precision figure. When we have determined that a lens is definitely a low precision grade, then that will be stated in the lens characteristics.

This lens includes a plain aluminum double-ring mount. The outer ring is 3.875 inches in diameter. The lens is mounted on an inner sleeve which can be oriented within the outer sleeve and clamped. The sleeves are both 1/2 inch in thickness. The clear aperture of the inner sleeve is 65mm.

Photo set 1448
***MPN 01-LCN-011
***OEM Melles Griot
***SKU*** 21477

This is a plano-cylindrical lens. These lenses have a defined magnification in one direction, and perpendicular to that direction they are effectively ‘unpowered’. Cylindrical lenses find numerous applications in holography, as well as imaging elongated slits in spectrometers and monochromators.

Characteristics of this lens include:
� Focal length – Negative 250mm
� Length – 60mm
� Width – 50mm
� Manufacturer – Melles Griot
� Part number – 01-LCN-011
� Glass type – BK7
� Figure – low precision
� Uncoated
� Condition – no visible defects

Please note – unless we are able to determine that a lens is a higher precision type (either by part number or by nomenclature on the lens itself) then it should be assumed that the lens has a low precision figure. When we have determined that a lens is definitely a low precision grade, then that will be stated in the lens characteristics.

Photo set 1439
***MPN 01-LCN-011
***OEM Melles Griot
***SKU*** 21468

This is a plano-cylindrical lens. These lenses have a defined magnification in one direction, and perpendicular to that direction they are effectively ‘unpowered’. Cylindrical lenses find numerous applications in holography, as well as imaging elongated slits in spectrometers and monochromators.

Characteristics of this lens include:
� Focal length – Positive 150mm
� Length – 60mm
� Width – 50mm
� Manufacturer – Unknown
� Part number – 8150-60-MF
� Glass type – BK7 ?
� Uncoated
� Condition – no visible defects

Please note – unless we are able to determine that a lens is a higher precision type (either by part number or by nomenclature on the lens itself) then it should be assumed that the lens has a low precision figure. When we have determined that a lens is definitely a low precision grade, then that will be stated in the lens characteristics.

Photo set 1438
***MPN 8150-60-MF
***OEM Custom
***SKU*** 21467

This is a plano-cylindrical lens. These lenses have a defined magnification in one direction, and perpendicular to that direction they are effectively ‘unpowered’. Cylindrical lenses find numerous applications in holography, as well as imaging elongated slits in spectrometers and monochromators.

Characteristics of this lens include:
� Focal length – Positive 75mm
� Length – 40mm
� Width – 30mm
� Manufacturer – unknown
� Part number – 880-40
� Glass type – BK7 (?)
� Condition – no visible flaws

Please note – unless we are able to determine that a lens is a higher precision type (either by part number or by nomenclature on the lens itself) then it should be assumed that the lens has a low precision figure. When we have determined that a lens is definitely a low precision grade, then that will be stated in the lens characteristics.

This lens has been mounted in a circular cell, 63.5mm in diameter. This cell is in turn mounted on a rectangular carrier 76mm tall, 63.5mm wide, and 13mm deep. The aperture of the circular cell is 30mm. The cell can be clamped to the carrier at any theta orientation.

Photo set 1437
***MPN 880-40
***OEM Custom
***SKU*** 21466