Magnifying Glasses

Magnifying glasses are devices typically used as vision aids that allow you to enlarge the apparent size of something and see it in greater detail and resolution. They feature a rounded convex lens, with light bending and converging at a focal point. Most are small and portable and designed for short-term uses such as reading small print.

How is the power of magnifying glasses measured?

You may see the power of a magnifying glass measured in multiple ways. The most common is ’times magnification’, which describes the number of times larger an object will appear when viewed through the device e.g. a 5x magnifying glass.

Dioptre is another method of measuring a device’s magnifying power. Also known as diopter, this is the measurement of the lens’ ability to bend light over its surface and is a power increase of 25% so 3 dioptres = 1.75x magnification and 5 dioptres = 2.25x.

What are the different types of magnifying glasses?

Magnifying glasses come in all shapes and sizes. Common types include handheld magnifiers, bench magnifiers and surface contact magnifiers.

Handheld magnifiers typically have a handle attached to the lens, allowing you to easily move the device closer or further away from your eyes or an object. This type is the most basic and instantly recognisable.

Bench magnifiers are designed to be placed on or attached to a surface, with an adjustable arm allowing you to move the position of the lens while keeping your arms free. They’re commonly used by dentists and jewellers, and can also be used for inspecting electronics and mechanical parts.

Surface contact magnifiers are small devices without a handle or arm that can be placed directly onto a surface. They’re commonly used in jewellery, watchmaking, photography, among many other industries.

Where are magnifying glasses used?

Magnifying glasses are used in a range of industries including jewellery, science and electronics. A jeweller’s magnifying glass will be used to inspect the quality of gemstones for example, whereas an electronics service engineer may use a magnifying glass to check for faults on an electrical circuit.

If you’re looking for a magnifying glass for personal use, a pocket magnifying glass is easy to carry around and can help with simple tasks such as reading food menus and guidelines on medicine packaging.


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Description Price Magnification Power Optical Power Lens Diameter Illuminated Battery Operated Battery Type Type
RS Stock No. 528-5307
BrandRS PRO
SGD13.53
Each
units
3 X, 4.5 X, 6 X, 9 X - - - - - Pocket Magnifier
RS Stock No. 123-0925
BrandRS PRO
SGD18.08
Each
units
10 - 30mm Yes Yes CR2016 Illuminated Magnifier
RS Stock No. 528-5335
BrandRS PRO
SGD6.65
Each
units
5 - 70mm - - - Hand Magnifier
RS Stock No. 528-5284
BrandRS PRO
SGD74.51
Each
units
8 - 35mm Yes Yes C Hand Magnifier
RS Stock No. 808-7068
BrandRS PRO
SGD31.69
Each
units
4X - - Yes Yes 2 x AAA LED
RS Stock No. 342-9814
BrandRS PRO
SGD188.35
Each
units
10 X, 15 X, 20 X - 18mm - - - Triple Lens Magnifier
RS Stock No. 342-9375
BrandRS PRO
SGD43.33
Each
units
10 - 21mm - - - Hand Magnifier
RS Stock No. 342-9808
BrandRS PRO
SGD125.24
Each
units
10 X, 15 X - 12 mm, 18 mm - - - Double Lens Magnifier
RS Stock No. 732-858
BrandRS PRO
SGD44.20
Each
units
20 - 26mm - - - Bi-Aspheric Eye Magnifier
RS Stock No. 732-842
BrandRS PRO
SGD28.02
Each
units
15 - 29mm - - - Bi-Aspheric Eye Magnifier
RS Stock No. 683-0844
BrandRS PRO
SGD342.13
Each
units
25 - - Yes Yes LR44 Pocket Microscope
RS Stock No. 683-0850
BrandRS PRO
SGD399.66
Each
units
100 - - Yes Yes LR44 Pocket Microscope
RS Stock No. 528-5329
BrandRS PRO
SGD7.30
Each
units
3X - 100 x 50mm - - - Hand Magnifier
RS Stock No. 849-6235
BrandRS PRO
SGD16.98
Each
units
2.5 - 90mm Yes Yes LR Battery Hand Magnifier
RS Stock No. 683-0857
BrandRS PRO
SGD386.19
Each
units
75 - - Yes Yes LR44 Pocket Microscope
RS Stock No. 123-0924
BrandRS PRO
SGD19.28
Each
units
7 - 65mm Yes Yes AAA 1.5 V Illuminated Magnifier
RS Stock No. 614-1539
BrandRS PRO
SGD5.51
Each
units
4X - 32mm - - - Sliding Cover Magnifier
RS Stock No. 136-8090
BrandRS PRO
SGD31.38
Each
units
10 - 14mm No No - Hand Magnifier
RS Stock No. 180-9469
BrandRS PRO
SGD20.16
Each
units
2 X, 4.5 X, 9 X - 3/4 in, 3-1/2 in Yes - - Illuminated Magnifier
RS Stock No. 146-5494
BrandRS PRO
SGD12.93
Each
units
- - 40mm - - - Clip-on Spectacle Eye Glass
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