Just MTF Charts: Perspective Control Lenses - mtf graph

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MicrometerThis product may not be available in your area.View ProductMPLAPON Our MPLAPON plan apochromat objective lens series provides our highest level of chromatic correction and resolution capability, along with a high level of wavefront aberration correction. View ProductMPLAPON-Oil Our MPLAPON-Oil objective is a plan apochromat and oil immersion lens that provides our highest level of chromatic correction and resolution capability. The numerical aperture of 1.45 offers outstanding image resolution. View ProductMXPLFLN MXPLFLN objectives add depth to the MPLFLN series for epi-illumination imaging by offering a simultaneously improved numerical aperture and working distance. View ProductMXPLFLN-BD MXPLFLN-BD objective lenses add depth to the MPLFLN series for epi-illumination imaging by offering simultaneously improved numerical aperture and working distance. View ProductMPLN Our MPLN plan achromat lens series is dedicated to brightfield observation and provides excellent contrast and optimal flatness throughout the field of view. View ProductMPLN-BD Our MPLN plan achromat lens series is designed for both brightfield and darkfield observation and provides excellent contrast and optimal flatness throughout the field of view. View ProductMPLFLN The MPLFLN objective lens has well-balanced performance with a semi-apochromat color correction, a fair working distance, and a high numerical aperture. It is suitable for a wide range of applications. View ProductMPLFLN-BD The MPLFLN-BD objective lens has semi-apochromat color correction and suits a wide range of industrial inspection applications. It is specially designed for darkfield observation and examining scratches or etchings on polished surfaces. View ProductLMPLFLN Our LMPLFLN lens is part of our plan semi-apochromat series, providing longer working distances for added sample safety and observation with increased contrast. View ProductLMPLFLN-BD Our LMPLFLN-BD brightfield/darkfield objective lens is part of our plan semi-apochromat series, providing longer working distances for added sample safety and observation with increased contrast. View ProductSLMPLN The SLMPLN plan achromat objective lens offers an exceptionally long working distance and the image clarity that you expect from the Olympus UIS2 optical system. It is ideal for electronic assembly inspection and other similar applications. View ProductLCPLFLN-LCD The LCPLFLN-LCD objective lenses are optimal for observing samples through glass substrates, such as LCD panels. The adoption of optical correction rings enables aberration correction according to glass thickness. View ProductLMPLN-IR/LCPLN-IR Our LMPLN-IR and LCPLN-IR plan achromat lenses have a long working distance and are specifically designed for optimal transmission in the near-infrared region (700–1300 nm wavelengths). View ProductWhite Light Interferometry Objective Lens This objective lens is designed for the Mirau style of white light interferometers and maintains a high level of temperature tolerance. The optimized numerical aperture of 0.8 provides improved light gathering, with a working distance of 0.7 mm. View Product

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The ocular lens is located at the top of the eyepiece tube where you position your eye during observation, while the objective lens is located closer to the sample. The ocular lens generally has a low magnification but works in combination with the objective lens to achieve greater magnification power. It magnifies the magnified image already captured by the objective lens. While the ocular lens focuses purely on magnification, the objective lens performs other functions, such as controlling the overall quality and clarity of the microscope image.

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Objective lenses are responsible for primary image formation, determining the quality of the image produced and controlling the total magnification and resolution. They can vary greatly in design and quality.

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Most of the F-mount Nikkor lenses we tried worked very well with infrared, especially the 14-24mm f/2.8 G zoom and the 35mm f/1.8G prime. The 24-120mm f/4 G VR is a good choice for all-purpose infrared shooting as both of the 24-70mm zooms produced pronounced hotspots. If you need a telephoto zoom lens, choose the 70-200mm f/4 AFS G VR or the newer 70-300mm f/4-5.6 AF-P Nikkor. Both of those lenses work well with infrared cameras.

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Avoid the 85mm f/1.8 S, 24-200 f/4-6.3, and 24-70 f/2.8 S lenses, as they produce pronounced hotspots at any aperture. For longer focal lengths, you’ll probably want to consider an F-mount lens and the Nikon FTZ mount adapter.

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The Nikon Z50 is a DX format mirrorless camera, so we tested both of the native Z-mount DX lenses. The 16-50mm Z-mount lens was disappointing as it produced very nasty hotspots across the entire zoom range. The 50-250mm telephoto zoom, on the other hand, performed well. If you’re considering converting a Nikon Z50 to infrared, you’ll need to use F-mount lenses with the FTZ adapter if you want a “standard” zoom lens.

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MXPLFLN-BD objective lenses add depth to the MPLFLN series for epi-illumination imaging by offering simultaneously improved numerical aperture and working distance.

(physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation.

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Many microscopes have several objective lenses that you can rotate to view the specimen at varying magnification powers. Usually, you will find multiple objective lenes on a microscope, consisting of 1.25X to 150X.

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If you are using a Nikon mirrorless body for infrared capture, the 24/35/50mm prime lenses deliver excellent performance. The 14-30mm f/4 is an excellent choice for wide-angle work, as it is very sharp in the corners of the frame, but it does exhibit some mild brightening when stopped down past f/11.

MXPLFLN objectives add depth to the MPLFLN series for epi-illumination imaging by offering a simultaneously improved numerical aperture and working distance.

Olympus microscope objective lenses for industrial inspections offer outstanding optical performance from the visible light to near-infrared region. At Evident, we offer an extensive selection of Olympus objectives suited to specific inspection requirements and tasks. Our MXPLFLN-BD objective is designed for darkfield observation and examining scratches on polished surfaces, while our SLMPLN objective is ideal for electronic assembly inspection. Find your ideal microscope objective today for your inspection task. No matter your requirements, Olympus objective lenses have you covered.

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This could break the lens. Determining Total Magnification. Multiply the power of the ocular lens, by the power of the objective lens.

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I really wanted the new 24-120mm f/4S Z lens to work for infrared; it’s the perfect range for most IR shooting. Unfortunately, it has a terrible hotspot problem at the wide end (<50mm). You can use it without issue at its longer focal lengths, but you’ll need to pair it with something wider to complete your kit.

Jason P. Odell is an accomplished photographer, writer, and educator based in Colorado. He has been passionate about photography since he was a child, and his love for the art has only grown stronger over the years.

The 10-20mm f/4.5-5.6 DX Nikkor is an excellent performer, and should work well on an infrared converted Nikon Z50 as a 14-30mm equivalent. The size advantage of the Nikon Z50 would be negated somewhat by the need to use the FTZ mount adapter.

You can easily mount Nikon F-mount lenses on a Nikon Z camera by using Nikon’s FTZ mount adapter. With AFS/G type Nikkor lenses, autofocus is retained. For AF-D Nikkor lenses, you will have to use manual focus. With the Nikon Z6 & Z7, you’ll gain the advantage of in-body image stabilization with non-VR Nikkor lenses.

The 24-70mm f/4 is also a good all-around zoom lens, although it weaker than the 14-30mm f/4 when shooting wide. Given that this is the “kit” lens for the Nikon Z6/Z7 cameras, it’s nice to know that it works well with infrared photography.

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We tested the following native Nikon Z-mount lenses with a Nikon Z6 converted to capture 720nm “standard” infrared images. Results with other wavelengths may vary.

My current “go-to” Nikon lens for infrared photography is the 28-75mm f/2.8 Z Nikkor. It delivers excellent performance and offers a fast f/2.8 aperture. It’s slightly better than the 24-70mm f/4, but if you already have that lens it’s probably not worth switching it out.

I have recently started using a Nikon Z6 mirrorless camera for infrared photography along with my colleague and Image Doctors podcast co-hos, Rick Walker. We tested our collection of Nikon lenses to see how they perform on infrared cameras. Primarily, we looked to see if there were significant hotspots (discrete, bright areas) produced by our lenses, which typically would render a lens unusable for infrared photography. Our combined results are shown below.

To clean a microscope objective lens, first remove the objective lens and place it on a flat surface with the front lens facing up. Use a blower to remove any particles without touching the lens. Then fold a piece of lens paper into a narrow triangular shape. Moisten the pointed end of the paper with small amount of lens cleaner and place it on the lens. Wipe the lens in a spiral cleaning motion starting from the lens’ center to the edge. Check your work for any remaining residue with an eyepiece or loupe. If needed, repeat this wiping process with a new lens paper until the lens is clean. Important: never wipe a dry lens, and avoid using abrasive or lint cloths and facial or lab tissues. Doing so can scratch the lens surface. Find more tips on objective lens cleaning in our blog post, 6 Tips to Properly Clean Immersion Oil off Your Objectives.

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