They are related, but different things. Some dies wear through their life without incident, and these are described as: Stage A: EDS; Stage B:...
When you seal the coins in storage, you can add a humidity indicator. These usually have indicators at 30%, 40%, and 50%. The dessicant will...
Sorry, probably not. I believe your two coins are of the "Serif" type, also called "Trumpet Tail". The Inverted Mintmark (IMM) is of the "Ball...
When I bought the 10g scale, I also bought a 2kg scale accurate to .1g. The 10g was for coins, while the 2kg was for small packages. I think both...
I bought a Chinese one that goes to 10g with 1mg resolution for ~$17. I think I over paid but it was "guaranteed accurate". From my tests it seems...
I don't believe that nickel is genuine, regardless of what PCGS says.
A coin hologram would indeed be cool. I checked out the Aven website, and the scopes look good, but for 1/10 the price I'd prefer to go with...
I have never tried such a thing. My wife can't deal with any of the 3D technologies so we don't have a 3D monitor in the house. No monitor=no...
My degree is in Electronic Engineering, and I've spent most of my career building Power Amplifiers for cell phones. The cell phone you use today...
I don't think I ever mentioned the word "machine". That word has a very different definition from "mechanical". Look back at the definition you...
I've never really looked much at Aven, but I'll look closer as they seem to have a wide range of interesting products. I expect they are probably...
Not at all. The systems are quite analogous, though they don't map 1:1 of course. Of course, but the apparent sizes of what the eyes see thru...
Sure... Mechanical magnification = the physical size ratio between the pixels in the display vs the sensor array. Digital Magnification = using...
I think I was not clear. I was speaking USB scopes, not stereoscopes, but a similar statement goes for the objective magnification in a...
The highest optical magnification you need for variety searches is 10x at the image plane. Most USB microscopes actually have only 1x-2x optical...
It would be a near perfect mount for the 105PN! My only issue now is that the versions of EOS Utility and Helicon Remote needed for operating the...
Hmm, I never really looked hard at the 5DSR before, believing it would not do what I want, but in fact the AA filter cancellation is done in...
The AA filter is only part of the problem with sensor resolution. The bigger problem is the Bayer pattern itself. They are designed to interact to...
Here's a useful chart comparing the XSi, XS, and XTi:...
Here is the collage comparing D7000 vs T2i, Normal vs Live View. For the D7000, Live View eliminates Shutter Shake since it takes the exposure...
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