Message:

<p>[QUOTE=&quot;Publius2, post: 4016903, member: 105571&quot;]Randy, the Fresnel lens is available in a number of different configurations for consumer use (we won&#039;t talk about their use in marine lighthouses).&nbsp; You often see us older folks with less than perfect eyesight using them in book sizes to place flat on their media of choice (newspaper, magazine, book, coin auction catalog) and because the focal length is so shallow, the lens will magnify the text clearly.&nbsp; With slabbed coins where the coin is farther away from the lens due to the plastic housing of the slab, there is a possibility that the distance exceeds the focal length of the lens.&nbsp; The material of the lens is usually plastic and you can buy a dozen credit card-sized units for $5 or $6.&nbsp; So, yes, you can keep one in your wallet, one in your car, one in your bedroom, one in the living room etc. for next to no money.&nbsp; Go to Amazon, type in &quot;Fresnel Lens&quot; and take your pick of hundreds of offerings.&nbsp; It&#039;s a very low-risk experiment to see if this would help with your issue.&nbsp; And even if it doesn&#039;t work for viewing coins in slabs, you will undoubtedly find other uses for them, even if just to scrape the ice from your windshield in the morning.[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in