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These infinity-corrected, imaging, visible microscope objectives provide 4X, 10X, 20X, or 40X magnification. With their high numerical apertures (NA) and large magnifications, they are suitable for focusing or collimating laser light. These Olympus objectives are ideal for imaging applications due to their diffraction-limited performance across the entire visible spectrum. Alternatively, they can be used to focus light to a diffraction-limited spot, thus enabling efficient coupling of monochromatic or broadband light into a waveguide or fiber.

Their designation as Plan Achromats indicates that they are flat field and aberration corrected at two different wavelengths in the visible spectrum, leading to better spherical and chromatic corrections and superb field flatness. These achromatic objectives have an ultra wide antireflection coating and standard RMS threading.

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• Plan Fluorite Design
• Infinity-Corrected Design
• Ideal for Imaging or Focusing Laser Light
• RMS (0.800"-36) Threading

These infinity-corrected, imaging, visible microscope objectives provide 4X, 10X, 20X, 40X, and 60X magnification. Plan Fluorite objectives, also called a plan semi-apochromat, are corrected for four wavelengths. These are well suited for color photomicrography. With high signal-to-noise ratios, excellent resolution, and high contrast imaging, they are useful in brightfield and Nomarski DIC observations.

The correction collar on the RMS60X-PFC rotates. By rotating the collar, the distance between the objective elements is changed, thereby correcting for the cover glass thickness.

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The Nikon Plan Fluorite Objectives provide 4X, 10X, 20X, 40X, 60X or 100X magnification. They are designed to have a high transmission rate (particularly in the UV wavelength) and to produce flat images across the field of view. Thus, these objectives are well suited for use in color laser scanning microscopy. These multi-purpose objectives can be utilized for brightfield, fluorescence, polarizing, and DIC observations. Of all the objectives featured on this page, thes Nikon plan fluor objectives are the most compatible with the Infinity-Corrected Tube Lens. They can then be incorporated into complex optical systems by using the SM2A20 adapter and Thorlabs' standard SM2 lens tube components.

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• Oil Immersion Objectives for the Visible Portion of the Spectrum
• Plan Fluorite Design or Plan Achromat Design
• Iris Diaphragm on RMS60X-PFOD and RMS100X-PFOD for Darkfield Microscopy
• Infinity-Corrected Design
• RMS (0.800"-36) Threading

These objectives provide 40X, 60X, or 100X magnification. They are designed for use in oil immersion applications; for more details on the benefits and applications of oil immersion and air objectives, please see the Objective Tutorial tab above. These objectives provide flat images across the entire visible spectrum. With their high signal-to-noise ratio, excellent resolution, and high-contrast imaging capabilities; they are effective in brightfield and Nomarski DIC observations. The RMS100X-PFO objective is also suitable for Optical Tweezer applications due to its nigh NA.

The majority of the objectives are plan fluorite objectives, while one (RMS100X-O) is a plan achromat design; the differences between these designs can be found in the Objective Tutorial tab. The RMS60X-PFOD and the RMS100X-PFOD objectives feature a built-in iris diaphragm, which is designed to be partially closed during darkfield microscopy, preserving the darkness of the background in darkfield observation. This is absolutely necessary for high numerical aperture (above NA = 1.2) oil immersion objectives when using an oil immersion darkfield condenser. For ordinary brightfield observations, the iris diaphragm should be left fully open. The iris diaphragm adjustment is pictured above and to the right.

The MOIL-30 Immersion Oil is also available below for use with these objectives.

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This objective provides 100X magnification. It is designed for use in oil immersion applications; for more details on the benefits and applications of oil immersion and air objectives, please see the Objective Tutorial tab above.

This objective features a high transmission rate (particularly in the UV wavelength) and produces flat images across the field of view. Thus, this objective is well suited for use in color laser scanning microscopy. It can be utilized for brightfield, fluorescence, polarizing, and DIC observations. The high NA of this objective also makes it suitable for Optical Tweezer applications.

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• Designed for use with Oil-Immersion Objectives
• Low Auto-Fluorescence for Multiphoton Imaging

The MOIL-30 contains 30 mL of microscope immersion oil ideal for general microscopy. The low auto-fluorescence also makes it ideal for multiphoton and other fluorescence imaging microscopes.

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The OT1 is a compact objective lens turret with four RMS-threaded ports. The housing is primarily constructed of aluminum but has steel inserts at critical points to ensure the durability and precision of the detent mechanism that reproducibly positions the objective lenses with a high degree of accuracy. The mounting interface for the OT1 objective lens turret has SM1 (1.035"-40) threading so that it can be easily integrated into custom imaging systems built using Thorlabs' Lens Tube and Cage Systems. To mount the OT1 in a cage system, use a CP02 or CP02T for a 30 mm cage system and an LCP02 for a 60 mm cage system.