are many words for these:
CLICK ON THE PICTURE TO BUY NOW
If you have a permanent chronic eye condition, then you don't have to pay the VAT, download a form.
There are two desk models:
are four handheld models we stock as standard:
Aumed video magnifier
reader-10 (10 inch screen) £1166.66 + VAT = £1400.00. [available
22 October 2018]
In addition to the above there are (as of Christmas 2019) a handful of one-offs ('specials'). Because these are special offers that cannot be repeated, the quantity in stock is listed by each item. Click here to see all handheld video magnifiers including the one-off 'specials'.
Usually I quote prices inclusive of VAT but, above, I have quoted prices both with and without VAT. This is because there is no VAT for any individual who has a permanent chronic eye condition. Instructions: order online, fill in and send us the VAT form; if you are paying by bank transfer don't pay the VAT; if you are paying by card the system will charge you VAT but when we take the money from the card we will deduct the VAT (but make sure you send the form!). You only have to do this once, if you make another purchase, just tell us you've already filled in the form.
ABOUT VIDEO MAGNIFIERS
WHAT ARE THEY?
These are known as digital magnifiers, video magnifiers, LCD magnifiers, low vision electronic readers.
The handheld versions are made out of a video camera on the back of a screen, a very bright light and a stand so that it can, if you wish, be slid along the page. They vary from the size of the smallest mobile phone to the a large tablet computer.
ADVANTAGES AND DISADVANTAGES
- they have powerful built-in
lights. Lighting is as important as magnification. The best magnifier
will be of little use in dim light.
- another standard feature
is to 'freeze frame' (like taking a photo). If you can't easily see the
object (a timetable at a bus stop, a tin on a supermarket shelf) you can
point the magnifier at the item, press a button, and the image stays on
the screen. Then you can then read it at your leisure (the better models
even enable you to magnify the 'frozen' image).
The price. Whereas the best quality reading lens costs about £50.00 to £100.00, the most basic (and smallest) video magnifier costs about£100.00, and if you want one that will cover few lines at one go (at its lowest magnification) and can be switched from close-up to distance and can also read you the text out loud - then you must pay over £1000.00.
The better models can be switched
from 'close up' to 'distance'.
Not only can you 'freeze' the
image, but once it is on the screen you can 'drag' it to the centre of
the screen with your finger then enlarge it.
Size and Quality
A larger screen will show a larger area (obviously). For handheld models this is like choosing between a small or large mobile phone or tablet. You therefore need to compromise: a small screen that will fit neatly into your pocket, to carry around, or a larger screen that will show you more words at one go, but will be bulky. TIP: when you look at the items on the web site, look at each picture with the hand so see the relative sizes.
The smaller screens are good for occasional use, e.g. menus, supermarket shopping, bus timetables, occasional reading of mail or football results, TV listings etc, but might only show two or three words at a time; larger screens will be bulky to carry around but are much nicer if you want to read books and magazines.
As with lenses, don't get obsessed with magnification: as the magnification gets higher, the quality suffers, and this applies to any size of screen. 2X to 4X magnification? The quality is good. 5X to 6X? OK, just about. 7X to 10X? You really are losing quality here, the image will be a bit fuzzy. Yet you can turn digital magnifiers up to 20X or 30X. The result is the same as you get when zooming into a tiny detail in the far distance in a digital photo - not good. It really doesn't matter if you have the best camera and the best screen, you are still viewing little dots of colour on a screen and at high magnifications you get to see...dots. For this reason do not use a video magnifier as a microscope. For instance, for small insects, inclusions in gemstones, die marks on coins, laser-engraving on diamonds, razor blade edges, soldering on micro-circuits, jewels in wrist watches - just buy yourself an ordinary optical microscope. Or a specialist video microscope...providing you don't turn the magnification up too high.
Why can't you get video magnifiers and video microscopes the same quality as lenses? Surely, with modern technology.
Think of it this way. This (dots) that make up the picture are 0.2mm across. The ‘dots’ of light you see through a lens (in terms of wavelength) are 0.00055mm across. In other words, nature’s light is of better quality than any manmade screen.
However, for reading (rather than scientific applications) and providing you don't expect to get a clear image at amazing magnifications, video magnifiers have features you cannot possibly get with a lens.
How to choose a magnifier (plus everything you would ever want to know about magnifying lenses)
How to choose a jewellers' loupe (including examples of what you will see through loupes)
How choose a binocular headband magnifier (from simple hobby model to a professional surgeon's / dentists models)
How to choose a magnifier for the partially sighted (specialist low vision aids including lenses and video magnifiers)
How to choose a UV loupe (ultra violet light)
Calculator (Excel format) - enter the magnification, it tells you the working distance, or enter the working distance, it tells you the magnification.
How to choose a stereo binocular microscope (all sizes and magnifications)
Professional USB microscope attachment (it replaces the eyepiece of your microscope)
QUICKTEST, Watford, WD18 8PH, Tel. 01923 220206, email info(at)quicktest.co.uk