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How to Choose a Magnifier

From Edmund Optics Inc.
 

 

To choose the correct magnifier for the job, first determine what tools are to be used on the job; then determine the size and the character of the subject; and finally, analyze the object's surface character. Then review the following aspects of magnifiers:

A single lens is satisfactory for low powers. Higher power magnifiers require two or more lens elements for improved resolution and correction of chromatic or other aberrations.

The distance from the magnifier to the object viewed is the working distance. This distance is an important consideration with regard to the type of work that must be done under the magnifier. If your work requires the use of tools, a magnifier with a long working distance will allow enough space to both use the tools and comfortably view the object. Small working distance magnifiers with higher powers are preferred for close-up inspection work.

Product Announcements
Daylight Company LLC (The) - The Quality Standard in Magnifiers and Lamps
Find the right solution for your specific lighting applications with DaylightTM. DaylightTM lamps are used as the standard for inspection work in the electrical and medical sectors, in laboratories,... (read more)
Scienscope International Corporation - Illuminated Magnifiers
A variety of illuminated magnifiers for all your inspection needs. 3, 5 and 8 diopters. ESD SAFE model available. ML-4000 Magnifier Non-ESD is shown. (read more)
Moffatt Products, Inc. - Magnifiers
Moffatt Flexible Arm Mounted and Shade Mounted Magnifiers feature high quality glass lenses available with 2-power magnification and an optional 4-power lens. Moffatt Magnifers are supported with the... (read more)
OK International, Inc. - MRS-1000 Modular Rework System
The MRS-1000 Modular Rework System is an integrated convection rework system for the removal and placement of BGA/CSP and SMT components. (read more)
Qioptiq LINOS, Inc. - The Standard in Probing Microscopy
The New A-Zoom Micro offers an economical solution for semiconductor probing or circuit board and flat-panel display inspection without sacrificing features, function or performance. (read more)
Aalborg Instruments - Model P Meters for Low Flow Rates
Designed for low flow rates, Aalborg®'s Model P Flow Meters offer simplicity, versatility and economy. These units are particularly suitable for metering carrier gases in chromatography, indicating... (read more)
EFD, Inc. - Fluid Dispensing Workstation
EFD's Ultimus™ 2400 Dispensing Workstation is a precision dispensing system that applies accurate, consistent amounts of adhesives, lubricants, silicones, epoxies and other fluids used in... (read more)
JML Optical Industries, Inc. - Air-Spaced Achromatic Doublets
JML is now offering air-spaced achromatic doublets for your most demanding laser applications. These achromats come with a broadband anti-reflective MgF2 coating. (read more)
Gearing Solutions - Large Valve Drives
ROLLER GEAR TECHNOLOGY offers an efficient solution for operating large valves with ease. This 'muscle magnifier' (10 to 1 ratio) unit comes complete with a valve position indicator. (read more)
Aalborg Instruments - Model T Single Flow Tube PTFE Flow Meter
Designed for low flowrates, Aalborg®'s Model T Flow Meter is a precision instrument embodying the inherent simplicity, versatility and economy of the classical Variable Area Rotameter. It is... (read more)
Topics of Interest
2.8 Magnifiers and Microscopes The magnification of a microscope or a magnifier is, like that of a telescope, defined as the ratio of the angle subtended by the image to the angle subtended by the... (Read More)
A diopter is a unit of measurement describing the optical power of a lens or curved mirror. When shopping for magnifiers, consider this: The diopter is equal to the reciprocal of the focal length... (Read More)
11.8.1 Simple Microscope (Magnifying Glass) A simple microscope is a single positive component used to magnify an object, when the object is located at or within the focal point of the component. The... (Read More)
Compound microscopes differ from simple magnifiers in that there are two separate magnification steps that occur instead of one. The objective lens is nearest the subject under observation and... (Read More)
11.4 ABERRATION DESCRIPTIONS10,27,47 Optical aberrations are defects of the image. They are described in terms of the amount by which a geometrically traced ray misses a desired location in the... (Read More)