Need help with microscope pictures

[richg]

I am having a hell of a time getting good pictures of double dies. I have a good trinoc microscope with a 3 mp scope camera, it seems that I am getting to much glare coming off the coins which is making the doubling hard to see. I have a ring light but it is not adjustable so it seems to be way to much light so I got one of those U shaped high definition lights that I could move into all kinds of positions. That is a big help if I sit there and move the light all over the place until it is in the exact position then the pictures are ok. I will not call them great because when they come out decent alot of light is not shining on the coin but at least the doubling looks pretty good. Can anyone give me any kind of tips I might try, it took me 1 1/2 hours yesterday to get 3 pictures and they are not spectacular. Here is the 3 I took. Thanks for any possible help.

 

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[Jeffro]

Did you try no lights, just opening up the shades for ambient lighting? Looks like the problem is glare more than anything.

The first one looks like good doubling on the 5, the next two I can't tell.

 

[richg]

Never did try that one, with no lights. On the last 2 pictures look at the inside top left of the T and the top of the S you can see strong doubling there. Thanks again.

 

[Jeffro]

Never did try that one, with no lights. On the last 2 pictures look at the inside top left of the T and the top of the S you can see strong doubling there. Thanks again.

I saw that, but without you poinring it out, I couldn't be sure if it was shadows or not.

Another thing to try, if the whole light issue doesn't work out, is scanning. Depending on the orientation, you can get a good closeup shot with a decent scanner. Sometimes I have to rotate the coin 90 degrees at a time to get rid of the glare though.

 

[HMS Beagle]

A polarizing filter is what you want. Whether or not there is room to hold one between the object and the lens is another matter. I use one from my 35mm film camera with my point and shoot camera with pretty good results. I just hold it on the front of the lens, turn it until I have the desired effect and push the button.
just a thought.
Beagle