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 Replies: 25 / Views: 2,585 |
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New Member
United States
35 Posts |
What power magnifing glass do you need to tell double dies? I'm using a x10, that good enough.
Kyle
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Valued Member
United States
189 Posts |
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Pillar of the Community
United States
2600 Posts |
Kyle, before I purchased a microscope I would have told you that a little more mag. would be enough, not anymore. I have been going through almost 6000 1972 Lincoln cents for that last three weeks with the scope and the results are amazing. I have about 1500 more to go and then I will post pics and synopsis of my findings. I will tell you about one coin now, though. I have a 1972, red, DDO and by the CherryPickers Guide, it is a 3-0-1. With a 20x loupe I can not see it. With the 30x on the other end I can barely make it out. Now, with my scope on 22.5x, the date looks to be three feet tall and I call see grains of dirt between the doubling on the g in God. I guess it is field of view, and maybe someone else can explain why a 20x loupe won't do anything close to what a 20x scope can. That said, I am scared of what I have discarded in the past thinking that there was nothing there. I only wish I had purchased this scope years ago. Jim |
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New Member
 United States
35 Posts |
Can u post a link to the microscope you use? Thanks
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Pillar of the Community
Australia
3831 Posts |
Yes Jim please if possible. Also, if it is not a secret, can you also let me know what the price range of such scopes are? Any links will be highly appericated.
I'm forced to look into one as some of the coins that I have been trying to look at has proven to be very difficult to analyse with cheap loupe.
My partial coin collection http://www.omnicoin.com/collection/gxseriesMy numismatics articles and collection: http://www.gxseries.com/numis/numis_index.htmRegularly updated at least once a month. |
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Pillar of the Community
United States
2600 Posts |
Hi guys. I got my scope from https://www.microscope-store.com. It is an OmanO trinocular scope - model 2344 with a 7.5 to 45 zoom if I remember correctly. It has a 1 1/4" field of view, but I added a 3/4 Barlow lens which cuts the magnification in half but increased the field of view to about 2 1/2". This way I can photograph coins with the scope and get a full shot of everything up to a half dollar. I have about $800.00 in the complete setup and for me it was well worth it. There are other makes out there that are much less money and probably work about as well. Still, I did not want to have to worry and Omano is a know name and I felt comfortable with their scope. The trinocular has a third tube on top of the scope and allows you to attach a digital camera if you choose for taking pics. Jim |
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Pillar of the Community
United States
1179 Posts |
Im using an off brand 60x-100x microscope with an LED light. Is this a bit excessive? It seems to work, but I cannot take pictures from it yet. Only other problem is neck strain! :(
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Pillar of the Community
United States
2600 Posts |
Ceaton, 60x minimum seems extreme. I typically am working at about 15x and when I really want to see something I go to 22.5 and that is a lot. I would wonder if you can really get a good feel for the coin at that power. It took awhile, but working with a adjustable desk chair and a stand, I have the scope to a point where it does not hurt my neck with prolonged use.
Jim
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Valued Member
138 Posts |
The coin grading co's consider noting more than the 10x and that one should be able to clearly see doubling without magnification. Other co's may ok 20x and 30x. However, My personal belief is that if you have doubling at any magnification it's legit and should be acknowledged as such. Besides it's not every day you run onto one.
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Pillar of the Community
United States
2177 Posts |
Personally, even 20x isn't enough for me. I've always been an avid reader and have needed to use glasses/contacts since I was a kid. If you need to strain your eyes constantly while using magnification get something stronger. Go with what works for you.
Edited by thingee
11/11/2007 02:13 am
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New Member
United States
24 Posts |
I have always used a Bosch & Lomb Hastings triplet, 10X, untill recently I have been into rpm's and such. I spent the $45 for the B&L 20X loupe, WOw, amazing detail, tho difficult to get used to.
I think it has paid for itself already, I found 2 1912-S/S in my sets and several other more common rpms. Bad thing is you cannot take a picture thru it. I will be asking the wife for a microscope for Xmas.
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Valued Member
138 Posts |
Some people on this site said they have taken pictures through a loop and the results were good. I have not tried it yet?
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Pillar of the Community
United States
2600 Posts |
1, I have heard people talk about taking pics with a camera thru a microscope lens. Are you sure about a loupe? I guess it is possible but seems pretty hard.
Jim
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Bedrock of the Community
United States
14454 Posts |
I use a QX-5 which is supposed to be a toy for kids, it hooks up to the PC takes pictures you can send directly from the scope. This kind of scope costs about 75-100 bucks and sometimes even less on ebay. Here are some pics from the scope at 10x and at 60x and 200x 10x 60x 200x |
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New Member
United States
24 Posts |
Is that a 1881-S VAM 6 by any chance? Excellent resolution, and thanks for a great idea ! |
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Pillar of the Community
United States
2600 Posts |
Bryan, do you have to change lens to get to 200x or is it a set increment where you rotate the optic lens?
Jim
Edited by Jim1953
11/12/2007 08:34 am
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Replies: 25 / Views: 2,585 |
Posted 11/10/2007 11:18 pm
