Help with Loupes .

Discussion in 'US Coins Forum' started by SensibleSal66, Aug 11, 2021.

  1. Seascape

    Seascape U.S. & World Collector

    I use a 4" magnifying glass. It shows me everything I'm trying to see. I can move it closer or further for differant resolutions.

    I suppose a loupe would be more appropriate but I'll drop 100s on a coin no problem than bulk and cringe at the cost of optics. Weird.
     
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  3. messydesk

    messydesk Well-Known Member

    The 3-6-9 format is probably optimal if you're going to have a single loupe, and the best quality optics is going to give you the best view of the coin. If you're looking at die varieties a lot, a 10x Hastings triplet is good to have. Higher magnification lenses are harder to use, because they need to be smaller and have a shorter working distance. For grading, I view the coin both with and without my glasses on. If I see something that warrants a close look, I reach for the 10x. It works quite well for me. For attributing coins at home, I have a stereo microscope.

    The loupe one should buy is the one that is needed to fill in what's missing in your inspection process. If you have a 5x, but frequently miss small stuff or have a hard time seeing die varieties or details of alterations, get a 10x. If you have a 10x, but can't see a coin well enough to grade it, get a 3-5x. Everyone's different and has different needs. Comparison shop if you can.
     
    Seascape likes this.
  4. gmarguli

    gmarguli Slightly Evil™

    I really like the Belomo lenses. Glass lens, very little distortion, nice metal housing, and very reasonably priced.

    Been told that most of the TPG graders use Zeiss. Saw one TPG grader using an old grandma style hand held black plastic lens with a tiny light on it to examine a coin.
     
    Dave Waterstraat likes this.
  5. PassthePuck

    PassthePuck Well-Known Member

    I use a hand held microscope attached to my laptop, desktop, and iPad. I can take pictures with it…here’s an example. Plus, they cost a whooping $30 or so on Amazon or eBay! FB0E5CD3-3089-4817-AE2E-9EE394C6F55D.jpeg
     
  6. Cheech9712

    Cheech9712 Every thing is a guess

    Forget that. 150. I’ll rent a teenager to check my coins.
     
    Kentucky likes this.
  7. ksparrow

    ksparrow Coin Hoarder Supporter

    this may sound a little nutty, but I like to see the whole coin through the lens first, so I have a 3" diameter magnifier (about 3x) with a handle that fits in my shirt pocket. Gives a good overview and with the right light easy to see hairlines, luster breaks, an so on. Mine is made in the US by Ultra Optix and cost <$10. For the close in stuff, mintmarks etc I have a 3+6 Eschenbach loupe (cost >$10)
     
  8. Mikenwuf

    Mikenwuf Active Member

    I hope I don't embarrasse myself, sometimes all the knowledge can be a bit overwhelming on this site, but I'm trying to absord it all. It can be a bit intimidating as well. So here goes. I commented earlier about the loupe I have. At the time I was at work and couldn't finish my thoughts. I'm an Optician, been doing it for 49 years. A perfect loupe would have multiple powers, achromatic lenses which translate literally to "no color", meaning no color cast like you can get with some lenses from chromatic aberrations and bifringence, aspheric designed lenses made of High Index material. Hi Index refers to a lens made of denser material with a higher index of refraction, allowing for lighter thinner lenses. Multi Anti Reflection coatings with super oleophobic properties, smudge and finger print resistant. Aspheric lenses are designed to make lenses thinner and lgihter as I mentioned, for eyeglass wearers it has another benefit and that's minimizing the effect of a high plus or minus prescription by thinning the lenses, your eyes behind your lenses look more life size. Think of a old fifties flying sucer, that's how an aspheric lens looks from it's profile in a plus power, same with minus, but the effect is less noticable. TMI! Sorry.
     
    CygnusCC, Kentucky and masterswimmer like this.
  9. Beardigger

    Beardigger Well-Known Member

    You don' t need expensive Loupe. My 2 work great for what I need them for.
     
    Last edited: Aug 11, 2021
    Kentucky likes this.
  10. Beardigger

    Beardigger Well-Known Member

    I have a 3x lighted magnifier I got free in the mail and a 10x Triplett I paid $10. For at a flea market


    895925C9-A9DD-4C22-8D95-CC79373D08A9.jpeg
     
  11. messydesk

    messydesk Well-Known Member

    I would agree with this unless your equipment is interfering with optimal viewing and evaluation of coins. Sometimes you can know if this is the case, but other times it takes trying a different lens to see if you're missing something, or having someone validate that you aren't missing things because of your equipment.
     
  12. KBBPLL

    KBBPLL Well-Known Member

    I just use this cheap thing. I don't know where I got it or even what the magnification is. The main lens lets me see the whole coin and the insert (5x?) is good enough to see smaller details. I have a few other gizmos but this ends up staying on my desk. It fits easily in a pocket and there's nothing to fiddle with. If I really want to go crazy I'll pull out my kid's AmScope.

    IMG_6232.JPG
     
  13. masterswimmer

    masterswimmer A Caretaker, can't take it with me

    Wow, that was a lot of technical info. The scary thing is, it actually proved a point for me. My wife says I don't listen to her. Well she's also an Optician. She's been licensed and in the business for over 30 years. I understood what you wrote! That's scary that I really do listen to her even more than I thought!

    Go Zeiss!
     
    johnyb likes this.
  14. dwhiz

    dwhiz Collector Supporter

    I keep a OtLite & a Bausch & Lomb close by. loupes x 2.jpg
     
  15. dwhiz

    dwhiz Collector Supporter

    By the way the Otlite has a led light built in. it helps when looking at a coin when a dealer is at the darkest part oy the bourse otlite loupe.jpg
     
  16. GDJMSP

    GDJMSP Numismatist Moderator

    Like the man said, the type of light you use is as, or even more, important as everything else is. Some types of light tend to hide some things and other types of light show you things. LED light is one of those types of light that tend to hide things. That's why it doesn't work well with cameras. Some types of light will hide color, others will hide hairlines, small contact marks and or light abrasions - all the kind of things that you need to see when looking at coins.

    For pretty much as long as people have been using lights to look at coins incandescent light has always been the recommended type of light to use because it shows you everything you need to see on a coin. But there's even a caveat with that, you have to use the right kind of incandescent light. There's what they call warm light and cool light in incandescent bulbs - and you don't want either one of them. Warm shows a yellowish cast while cool shows a bluish cast. What you want is an incandescent light that shows you the full color spectrum. And you don't want too much light, nor do you want too little, you need that middle ground that is just right - 75 to 100 hundred watts is best.

    And yes, incandescent light is better than natural light, sunlight, for even sunlight can hide some things because it produces too much glare.
     
  17. Insider

    Insider Talent on loan from...

    See Above and...

    The more powerful the hand lens, the smaller its lens diameter, the closer you need to get to the coin to be in focus and the less light of any type you use that reaches the surface of the coin!!!

    Additionally, a low power lens lets you see the entire coin all at once. Much better than moving it all over several parts of the coin at a time.
     
  18. johnmilton

    johnmilton Well-Known Member

    Here is what I use almost 98% of the time, when I use a glass.

    MAG !.jpg

    And RARE occasions at home ...

    Mag 2.jpg

    Sorry about the sideways pictures, but sometimes the websites refuse to accept the fact that the photo has been rotated.
     
  19. charley

    charley Well-Known Member

    You have had the world of loupes selection in the replies received.
    FWIW, over the years I have had many, ranging n cost from 3-80 Dollars. What I learned is that I had to try the loupe in person. Nobody has the exact same vison, depth perception, color registration, curvature, degree and angle awareness.

    When i went to one of the larger Shows, I would kick the tires, because there were always 6-10 booths that offered loupes.

    While you have had wonderful suggestions, you would fare well by having the loupe 'fit" your strengths/limitations of vision.

    I presently use an older model 5X (I have never used anything but 5X) Leuchtturm, with a thumb button for neutral illumination.

    I have noticed I have a slight change in the last 3 years or so in my left eye, that necessitates lifting my lid slightly more to discern toning anomalies on the whole coin at the same time. About 5 months ago, I went in for a regular ophthalmological appointment and mentioned this. After the exam, it was clear that, while my vison had not changed significantly at all, the ocular muscle strength had a slight loss (very slight). It was suggested (I showed the Physician the loupe) that I should try to increase the radius of the glass from the present 1/2 " to 3/4". We tested that using his equipment. Yes, I immediately noticed I was not straining to lift the lid, and definitely had a clear full circumference ability to examine a coin (I brought a 1/2 dime and a Morgan with me).
    I will be going to Bal'more, and will kick the glasses then.

    I don't know if this helps, and you need to take into consideration that I am an old curmudgeon (really old according to her) white guy that wants to be loved.
     
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