32 InchesRing Light

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The objective lens of a microscope forms a magnified, real, intermediate image of the sample or specimen which is then magnified further by the eyepieces or oculars and observed by the user as a virtual image. When a camera is used to observe the sample, then a phototube lens is installed after the objective in addition to, or even in place of, the eyepieces. The phototube lens forms a real image of the sample onto the camera sensor. The objective’s numerical aperture (NA), its ability to gather light, largely determines the microscope’s resolution or resolving power to distinguish fine details of the sample. Also, the working distance, the distance between the sample and objective, and the depth of field, the depth of the space in the field of view within which the sample can be moved without noticeable loss of image sharpness, both greatly depend on the properties of the objective lens. For more information, refer to: Collecting Light: The Importance of Numerical Aperture in Microscopy, How Sharp Images Are Formed, & Optical Microscopes – Some Basics & Labeling of Objectives

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Is your ring light too small for you? Then this new light from Smith-Victor might be just what you're looking for – it's the largest ring light on the market, requiring two stands to hold it up, and is so big that you can literally walk through it!

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Its settings can be controlled directly from the unit itself, via a separate wired control module with a clear OLED screen, or via a remote console thanks to the support for DMX lighting controllers.

Leica achromats are powerful objectives for standard applications in the visual spectral range, offering field flatness (OFN) up to 25 mm. The absolute value of the focus differences between red wavelength and blue wavelength (2 colors) is ≤ 2x depth of field of the objective.

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Leica apochromats are objectives for applications with highest specifications in the visual range and beyond, offering field flatness up to 25 mm. The absolute values of the focus differences for the red wavelength and the blue wavelength to green wavelength (3 colors) are ≤ 1.0 x depth of field of the objective.

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For standard applications, Leica Microsystems offers an extensive range of top-class microscope objectives. There are also Leica objectives which have been optimized for special applications. The highest-performance Leica objectives feature maximum correction and optical efficiency and have won several awards. All over the world, scientists are relying on Leica microscope objectives to gain insights into their area of research.

Leica microscope objective lenses are designed and made by our optics specialists to have the highest performance with a minimum of aberrations. The objectives help to deliver superior microscope image quality for many applications, such as life science and materials research, industrial quality control and failure analysis, and medical and surgical imaging.

Leica semi-apochromats are objectives for applications in the visual spectral range with higher specifications, offering field flatness up to 25 mm. The absolute values of the focus differences for the red wavelength and the blue wavelength to green wavelength (3 colors) are ≤ 2.5x depth of field of the objective.

The Saturn Pro 48″ Bi-Color LED Ring Light from Smith-Victor is available now for $479.99. For more information, visit the manufacturer's website.

Thankfully the Saturn Pro breaks down into four convenient crescent sections, all of which fit into a durable fitted case along with the control module and mounting pieces (though you'll obviously have to lug the light stands separately).

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All Leica objectives are marked with codes and labels. These identify the objective, its most important optical performance properties, and the main applications it can be used for. For more information, refer to: Labeling of Objectives

The Saturn Pro 48″ Bi-Color LED Ring Light is undoubtedly the best ring light if you want sheer size and pure power, with its 48" / 121cm head pumping out 1200W incandescent equivalent or 2200 Lux at up to 3 feet – both of which are more than enough to illuminate a full-length subject, multiple people, or a very large product.

Of course, given its gargantuan size, you might be wandering about portability – well, at least the ability to pack down this behemoth, or to transport it from your studio to  homes or venues when shooting clients.

The editor of Digital Camera World, James has 21 years experience as a journalist and started working in the photographic industry in 2014 (as an assistant to Damian McGillicuddy, who succeeded David Bailey as Principal Photographer for Olympus). In this time he shot for clients like Aston Martin Racing, Elinchrom and L'Oréal, in addition to shooting campaigns and product testing for Olympus, and providing training for professionals. This has led him to being a go-to expert for camera and lens reviews, photo and lighting tutorials, as well as industry news, rumors and analysis for publications like Digital Camera Magazine, PhotoPlus: The Canon Magazine, N-Photo: The Nikon Magazine, Digital Photographer and Professional Imagemaker, as well as hosting workshops and talks at The Photography Show. He also serves as a judge for the Red Bull Illume Photo Contest. An Olympus and Canon shooter, he has a wealth of knowledge on cameras of all makes – and a fondness for vintage lenses and instant cameras.

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Its 1,408 individual LEDs are rated 95 CRI, and give the Saturn Pro high quality bi-color capability with a variable color temperature from 3000~5500K. The ring light features granular 100-point dimming, with a beam angle of 120º, and can be tilted up to 360º for variable direction and even overhead lighting.

To make it easier for you to find which Leica objectives work best for your microscope and application, you can take advantage of the Objective Finder

Do you need an individual objective for your application? Then contact our Leica OEM Optic Center so that we can offer you a customized solution.

The optics of the most basic microscope includes an objective lens and ocular or eyepiece. The objective lens is closest to the sample, specimen, or object being observed with the microscope (see the schematic diagram below). For more information, refer to the article: Optical Microscopes – Some Basics Show schematic diagram

Saturn Pro 48″ Bi-Color LED Ring Light: $479.99 This monster ring light from Smith-Victor is large enough to illuminate full-length subjects, multiple people, a single large product or still life scene.