An extraordinarily large 'linen tester", obviously not for extraordinarily large sheets of linen, people like these simply because they fold up quite small and open out on a stand.
Limited quantity (see above for the quantity in stock) - once these are gone, there are no more.
Read all about magnification and how to choose a magnifier, click here.This is a very low value item. We have a minimum order charge of £7.50 (£6.25 + VAT). Is this the only item you require? You may wish to buy more than one, or add some other items to the order.
We have a calculator that shows you the working distance for any magnification, or the magnification for any working distance (Excel format), click here.
folding (linen tester)Magnification / lens size in mm:
2.5X90 Lens material:
plastic Lens type:
Single lens Dimensions:
- top (the bit with the lens) - 96mm X 96mm
- lens (the circle in the top that is the actual lens) - officially 90mm dia though the visible lens is a bit smaller
- height (from lens to object) - 132mm
- base (the bit that rests on the object): - 97mm X 96mm
- folded 35mm high; 96mm wide; 134mm deepGraduations around the base
60mm/1mm and also 2 1/4in/ 1/4in Origin / brand:
matt black Presentation / extras:
A linen tester (also known as a linen prover) is a folding magnifier, traditionally used for measuring the threads-per-inch on linen, which is why it has a scale marked around the base. Today, they are mostly used for viewing stamps, coins, prints and photos - anything flat. They come in all sizes from 15mm to 90mm, one even has a light.
Specifically, a nice cheap option as a rest-on-page magnifier for reading text, the lens is set at just the right distance and is quite large. It is also large enough to work under, e.g. for small jewellery repairs, a good choice if you're carrying it around and need it to fold up compactly. However, the lens cannot be 'tilted' so if space is not at a premium, it would be better to buy a "small stand magnifier".
Everything you need to know about magnifiers and magnification
See information about (and reviews of) loupes
(small high-power folding jewellers' magnifiers).
See information about (and reviews of) binocular (head-worn) magnifiers
- especially the surgeons-type.
See a guide to magnifiers for the partially-sighted
See loupes with UV lights
Video (electronic) magnifiers, video magnifiers compared
Products: see pocket microscopes and phone microscopes, click here
With most magnifiers* magnification and working distance are related. Download our Excel sheet
, enter a magnification to see the resulting working distance, enter a working distance to see the resulting magnification.
* excluding surgeons-type, digital & phone magnifiers, and microscopes.
Our returns policy (return any item you don't like, within 14 days
) still applies, but if you return just some of a bulk order, and what you keep doesn't entitle you to the bulk discount, we will allow for this when issuing the refund / alternative items. Confused? - then please email first!
When returning bulk-discount items, if you request alternative items, postage is chargeable.