How do I scan slabs?

I am very frustrated right now....everytime I scan a slab it turns out horrible...Please Help.

How do I get good pics...this is what my coins look like when I scan them in slabs, or any coin with bright luster for that matter:






stainless

 

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You cannot scan a slab. It's always come out blurred. You have to take a picture of it then if you like, scan the picture. There will always be a distance (up to 1/8" or so) between the slab and the printer glass.

 

Well, you take a hammer and...:hammer:

 

I actually thaught of that...lol...but with my luck I'd ruin the coin



stainless

 

send it to me and I'll scan it and E you back the scanned photo! :eat:

 

I've had the same trouble with scanning the coin within the slab' The scanner focuses on the slab and then the coin is out of focus. I have the same problem with the QX5.

 

Buy a good camera and solve all your pic problems.

Ribbit

 

The way I do it after I scan the slap I have a program I go to ,to get the best results. I have the HP imaging program using contrast etc or high resoulution you really have to work on it to get a clear picture. You can achieve good results from a scanner when scanning a slab/The word is patience my friend.
Jazzcoins Joe:whistle::whistle:

 

Some scanners simply don't have the ability to focus on coins in slabs. It appears your scanner is among that group...Mike

 

I don't use a scanner, but have you tried cutting the proper size of hole in a glossy white piece of paper, and framing the coin portion of the slab within the hole? The scanner might think the white paper is its normal cover and not focus on it.

Jim

 

I've used MRI's. Scanning or Photos?

Ruben

 

scanners don't focus...

 

Really then explain how I'm able to do this.

 

Instead of calling people to the carpet why don't you share some of your knowledge with stainless on how to do it? just a thought..

 

Not much info to share. I just wipe the slabs with a micro fiber towel and put them on the scanner bed and hit scan at 800dpi and this is what I get. I use a Canon 5600F.

 

I have an HP 4370, and I can scan coins in slabs, if they do not have a mirror finish like a proof that is. The best coins are bronze and dark coloured. Gold scans okay, and silver is the most difficult to scan.

Here is an example of dark chocolate flavoured coin in a slab:

Obviously in a slab, notice the hairline scratches in the plastic of the slab on the reverse of the coin.

Another slabbed coin, this a dark silver dollar from 1799:

Even a lighter gunmetal colour scans okay:

But even BU finish in silver is too much for the scanner, and it starts inserting moire patterns in the image:

Notice the funkadelic colour schemes going on with this otherwise blast white coin?

The lesson is this, some coins, particularly silver, do not care to be imaged if they are BU or proof. At that point you have to have a digital camera setup to image them. And even then, it can be trying on the patience:

Please note that no coins were harmed etc. in the creation of this above presentation.
​

 

I agree that silver proofs are the hardest but they can be done at least to a passable level.

 

What are you going to tell him? Scanners DON'T FOCUS. They're not cameras. In fact, it is a completely different technology. A scanner runs across an object recording pixel by pixel everything that is senses and records that onto an image. It is a copy machine. Scanners are more precise than photo's. They don't bend light, they record everything they can probe.

Ruben

 

ACTAULLY - it looks like you coin MOVED as it was being scanned

Ruben

 

Hey Scottish, that 1860 dollar is a looker.....proof? Many shekels I'm sure.