Kooter's Geology Hand Lenses and Brunton Pocket Transits


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Hand Lens Magnifiers for Geology and Earth Sciences

Free shipping to US free US shipping  and  Canadian shipping also $5.45 to Canada Ship Info Here


Bausch & Lomb Clearance Sale!
We are discontinuing B&L magnifiers
Stock is limited to what we have on hand.

Hand lenses, also called loupes, in 7x to 20x magnification have many uses for geologists, earth sciences, biologists, agronomists, master gardeners, rockhounds, and jewelers.

Watch a quick YouTube video: How to use a hand lens

See our Selection Guide if you need help choosing which magnification to buy.

A note to our many friends and customers since 1997

Many of you have noticed the down sizing of our product lines over the last several years. We are now down to a small enough inventory to be able to attend to family health matters. We apologize that there will be times that we will need to shut down the store temporarily. Sometime later in the year, we will be closing Kooter's completely. Thanks!




10X Loupes - shown by price - from low to high




10x jeweler's loupe

18mm Value 10X  triplet magnifier

The best Hastings Triplet magnifier value we have found. Costs little more than a good quality doublet magnifier. Clear bright image of this genuine triplet lens rivals the B&L hand-lenses at less than half the price, and the larger 18mm diameter makes it easier to use for some people.  Well made, nicely finished body.
  • 18 mm diameter lens
  • Well riveted pivot post
  • Supplied with leather pocket case
  • Weight about 1.2 ounce (35g)
  • Chrome finish
10X triplet hand lens $16.00 including shipping and neck lanyard

156 available
  



10x jeweler's loupe

18mm Pro-Value 10X  triplet magnifier

Same construction and dimensions as our standard Value triplet, but the Pro version adds a matte black finish and an anti-reflection coating on the lens to produce a crisper image.
  • Anti-reflection lens coating
  • Matte black finish
  • 18 mm diameter lens
  • Well riveted pivot post
  • Supplied with leather pocket case
  • Weight about 1.2 ounce (35g)
Pro-Value 10X triplet hand lens $19.50 including shipping and neck lanyard

156 available
  



Baush lomb coddington magnifier

Bausch & Lomb 10X Coddington magnifier

This magnifier is suited to the customer on a budget who wants the assurance of B & L quality in a hand lens. This is a Coddington magnifier, meaning that the lens is ground from a single piece of glass. The Coddington design requires a magnifier body that is large compared to the actual usable viewing size, but it results in a rugged magnifier that cannot be damaged by water.  A good choice if you will be working in aquatic environments.
  • True B&L quality hand lens at low price
  • Effective lens diameter about 12 mm, (actual is 19.8mm)
  • Solid glass lens element can't be damaged by water
  • Weight about 0.75 ounce (22g)
  • Bausch & Lomb #81-61-31
10X B&L Coddington - was $24.90

Clearance! Now $19.95 including shipping and neck lanyard

32 available
     


10x large jeweler's loupe



21mm Large Size Value 10X triplet magnifier

Same construction as the standard Value 10x. Just 3mm more diameter does not sound like much, but do the math and this 21mm loupe has 30% more glass area than the 18mm Value Triplet. And 80% more area than the B&L triplet  Some people prefer a large lens because it is a little easier to get proper lighting on the subject.  A little heavy on the lanyard if you will be carrying it all day.  Expect a little linear distortion at the perimeter of the lens, but still a very sharp, bright image.
  • 21mm diameter lens
  • Well riveted pivot post
  • Supplied with leather pocket case
  • Weight about 2.1 ounce (60g)
  • Chrome finish
Large 21mm 10X triplet hand lens $22.00 including shipping and neck lanyard

244 available
  



10x large jeweler's loupe



21mm Large Size Pro-Value 10X triplet magnifier

Same as the Large Value 10x above, but with added anti-reflection lens coating and professional matte black body finish.
  • Anti-reflection lens coating
  • Matte black finish
  • 21 mm diameter lens
  • Well riveted pivot post
  • Supplied with leather pocket case
  • Weight about 2.1 ounce (60g)
  • Chrome finish
Large Pro-Value 10X triplet hand lens $26.50 including shipping and neck lanyard

96 available
  




Belomo 10X triplet magnifier

Belomo 10x triplet loupe LPZ-10

A well respected hand lens. Sorry, we no longer stock this item.

We recommend Amateur Geologist, Inc as your source for Belomo lenses.


Bausch & Lomb 14x Loupe




B&L 14 X hastings hand lense

Bausch & Lomb 14X Hastings triplet magnifier 

A magnifier of this power can usually be used by a trained person fairly easily.  Some users will need to remove eyeglasses to hold it close enough to the eye.  A very useful hand-lens,  but because of its smaller size and shallower depth of field of focus we would still recommend that you have another lower power lens handy for general use.
  • 12.5 mm diameter lens
  • Weight about 0.4 ounce (12g)
  • B&L # 81-61-75
14X B&L Hastings triplet was $41.90

Clearance! $27.50 including shipping and neck lanyard

ONLY 1 available
     



20x Loupes




Baush lomb coddington magnifier

Bausch & Lomb 20X Coddington magnifier Clearance!

The only 20x loupe we keep in our regular stock is this 20x Coddington. Rugged one-piece lens design. Case and body is same as used for the B&L 14x triplet, so is much easier to handle than the very small B&L 20x triplet.

PLEASE NOTE 20x magnification is used only by a few specialists who can tolerate the very short range of focus resulting from high magnification. We suggest that you also have a 10x or 7x handy to serve most of your needs.
  • A very high quality 20x loupe at a low price
  • Effective lens diameter about 7 mm, (actual is about 12mm)
  • Solid glass lens element can't be damaged by water
  • Weight about 0.4 ounce (12g)
  • Bausch & Lomb #81-61-41
20X B&L Coddington was $26.50

Clearance! $17.95 including shipping and neck lanyard

Note: These are first quality, but old stock
ONLY 5 available
     


B&L 20 X hastings loupe

Bausch & Lomb 20X Hastings triplet magnifier 


Bausch & Lomb #81-61-81

Sorry, because of quality control problems we no longer stock the 20x Triplet as a regular item

But visit our Bargain Bin for "Seconds" of this item at $15.00

The 20x B&L Coddington shown above is also a very useful alternative



Magnifier Selection Guide

  • 7X is an excellent choice for 3D objects in biology. Popular with Master Gardener programs. Large size and good depth of focus makes it a good choice for teaching hand lens use to youngsters.
  • 10X is appropriate for most all general science purposes. The preferred magnification for many jewelers and gemologists. Can usually be used without removing eye glasses or sun glasses.
  • 14X - 15X is about the upper limit for general purposes, and may require removing eyeglasses for use.
  •  20X  is for specialized purposes, and has very little depth of focus.  Using it requires the patience and knowledge of a trained person.  It should only be used in addition to, and not in place of, a lower power hand lens.
  • See Kooter Sez Hand Lens for more selection advice
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Last revision 04/13/2014