Quality new & used scientific equipment, in-stock & ready to ship!

Quality new & used scientific equipment, in-stock & ready to ship!
Buy online or call 781-871-8868

Quality new & used scientific equipment, in-stock & ready to ship!

Quality new & used scientific equipment, in-stock & ready to ship!
Buy online or call 781-871-8868

Leitz 559 202 NPL 20x / 0.40 Strain-Free Reflected

$280.00

1 in stock

1 in stock

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Additional information

SKU 30172
Dimensions 4 × 4 × 4 in
Location MB 22
Tested Sold AS IS. As Described
Cosmetic Condition 4 - Excellent
Product Condition Used
Container Box
OEM Name Leitz
OEM SKU 559 202

This objective is infinity corrected and intended for use in reflected light examinations. It may also be used successfully in transmitted light applications provided it is used with an appropriate infinity corrected vertical illuminator. The lens is very sensitive to cover glass correction and MUST be employed without any cover-glass on the specimen. The red-filled nomenclature denotes that it is reasonably free of strain. As such, it may be used for non-critical ore microscopy examinations, or as a component in an interference contrast setup.

Magnification � 20x
Numerical aperture � 0.40
Achromatic color correction
Flat field for normal wide-field oculars (index 18mm)
Free working distance � 2.3mm
Objective thread � standard RMS
Infinity corrected
Cover glass correction � no cover-glass
Low-strain for polarized light applications
Adjustment length � 30mm (see explanation below)

The 30mm adjustment length of this objective warrants some explanation. Being an infinity corrected optic, the distance from the tube lens within the microscope to the objective is freely adjustable. This lens may be threaded directly into the individual centering collars as used on the pol vertical illuminators. The short 30mm adjustment length allows the examination of thicker preparations. When used on a nosepiece with DIN standard 45mm objectives, a 15mm spacer should be employed (not included). When employing Nomarski interference contrast, the objective is threaded into a special intermediate adapter that carries a Wollaston prism (catalog number 553 395). This prism is listed separately.

This lens is in superb condition without any blemishes noted in the glass elements. The lens cell shows some very light discolorations (see photos).

Photo set 1968
***MPN 559 202
***OEM Leitz
***SKU*** 30172