JARLINK 2 Pack 30X 60X Illuminated Jewelers Loupe Magnifier, Foldable Jewelry Magnifier with Bright LED Light for Gems, Jewelry, Coins, Stamps, etc (White & Black)

At 60x it seems like viewing down a tube because of light reflection off the innermost plastic surface...but it's a decent clean image over 2/3 of the field of vision. Comparing with the decent onboard 30x triplet lens, an old B&L 14x, triplet, new iPhone 10 with 10x moment magnification lens and a new Zeiss 10x lens as well as a big 50mm Zeiss Macro at maximum magnification on a computer setup, II can actually do better with this crazy cheapo thing. Using my test rock I can identify very fine grained galena with certainty. The light is a little too blue so colors get washed out but the galena is visibly separable at 60x from sphalerite by cleavage and reflectivity. I could only guess with the Zeiss computerized Macro camera setup. I know because I compared the test fine grained lead-zinc test sample from a woodchuck hole where I live, I tested the rock with a 200x Dinolite scope so I did my homework. The only fancy lens I have not checked it against is the famous Iwamoto 20x. I will do it soon but this crazy little Jarlink is a wonder when dealing with a dusting of drab "black" minerals in a beige background of dolomite of no obvious interest at the naked eye level. I plan on taking two of these babies for analysis and logging of 2000 m of core in Chile next week. I'm in the copper business as a mine owner/geologist dealing with some big outfits and I need to know what I'm doing to survive.. Since testing I have adopted this lens as a backup for the USB microscopes I have and as a way to make best use of the much slower and more complicated Dinolite. I bought 20 little toy watch batteries for these Jarlinks and plan on using them all up. I don't think they are particularly sturdy but they do work quite well. I am surprised. little LED light is a necessity at 60x. The beautiful little Zeiss hand lens was nice and bright overall but I could absolutely not find any signs of very fine grained galena in the drab sphalerite dusted dolomite...not at all even though I knew it was there.... not at 14x or 30x! I ordered a little 40x with a UV light because I'm hunting for signs of Fluorite in the copper mining work with some very very strong UV equipment. I'm still waiting for the Iwamoto I just rebought but those things cost $125 each. An Iwamoto is considered the industry's best available hand lens. If it beats an Iwamoto...I would give this a big fat first place. Right now it's running well in a tough race. If you take anything less than a 20x in the field or core lab prepare to miss stuff, important economic mineralization at grades that are near ore. This is an amazing thing to discover. I found I can't see the copper at 3,000 ppm worth a damn. Ore is at 5,000 ppm Cu ! Imagine not even being able to see what you want to mine...and have to rely entirely on chemistry and a few petrographic thin sections at $1000 each. You don't know what you are doing at all. I already beat out some very experienced mining geologists 15 years ago on my Cu property with my 20x Iwamoto. I started finding strange bluish covellite like material and ultimately found it was fine grained bornite all over the place! This is a big deal. It took 15 years and a strong Dinolite Edge USB scope at 200x to prove my original suspicions using the Iwamoto. I'm teamed up with a team Lindsey award winner right now and he and I agree. He is credited at finding a supergiant copper deposit in Chile...Los Solfatos. He laughs when I pull out crazy stuff new stuff but it makes up for my having significantly less experience at discovering Porphyry Copper mines in Chile;...plus my eyes are getting old...like almost 70! and I have not yet won a "Prospector of the Year" Lindsey...given out by the biggest mining development association in the world for one man achievements.

I purchased this so we are able to view small writing on products, as well as viewing defects in jewelry and related items. They work as designed. The battery has been holding up well, and the magnifying power is perfect for our needs.

Functional and affordable. I bought these for my employees to determine counterfeit collectibles. I wouldn't suggest this for an every day loupe that you travel with. They do tend to fall apart when they are in bags and used everyday. But it does a good job, easily replaceable, and handy.

Love using these to closely examine plant parts, especially the seeds.

The image quality is excellent. I had not realized it had a built-in light but that is essential. You need to get so close that using an external light would be very hard to do. That said, do yourself a favor and get a pack of the LR1130 button cells (available on Amazon). Alternatively, remember to turn off the light...The battery is a little funny: if (like me...) you leave it on, it can get quite dim. But, if you turn it off for a few moments, it gets bright again (thank goodness!).

Worked awesome, but broke when I recently used it. I don't know if it's too late for a replacement. I haven't used it for a long time, but only used on 3 occasions.

Love the different strengths

Nesseccary for coins, stamps, gem stones,etc

Used for jewellery identification. Good product for the money.

Easy to use scope for checking when my cannabis plants are ready for harvest. Works well.

I use this product to see jewelry grade for instance 14 karat 18 karat

Product is good and arrived sooner than indicated.

Works great