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Drsandman2's Avatar
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 Posted 02/12/2012  5:43 pm Show Profile   Bookmark this topic Add Drsandman2 to your friends list Get a Link to this Message Number of Subscribers
I'm looking for a small light box, big enough to put a slabbed coin into... but not much bigger. I'm looking for something that is about 6x6. I use a 16 MP point-and-shoot with non-telescoping lens perfect for macro. I typically shoot the coins from only an inch or two away, which in a single shot is fantastic at showing doubling, die cracks, clashes, etc.

Here are a couple full size shots I've taken with my camera. Beware, they are almost 6 MB. Be sure to adjust to full size to get true detail. The Double Eagle was taken without a stand, and 2 excited hands.

Because I need to get the camera so close to the coin, I need a small, short box. I will build my own if I have to... but ordering the lights and wiring it all together will be a pain.

EDIT: Scratch the photobucket, they resized my images. I'll just host them on my own ftp:

http://www.doublejackauctions.com/DSC02785.jpg
http://www.doublejackauctions.com/DSC02514.jpg
Edited by Drsandman2
02/12/2012 5:48 pm
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Fuzzy317's Avatar
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 Posted 02/12/2012  6:54 pm  Show Profile   Bookmark this reply Add Fuzzy317 to your friends list Get a Link to this Reply
I went the cheap method. The coin is sitting on an upside-down pencil cup. That sits inside a small plastic container, and I have a larger container as a light defuser.
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oih82w8's Avatar
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 Posted 02/12/2012  7:24 pm  Show Profile   Bookmark this reply Add oih82w8 to your friends list Get a Link to this Reply
Fuzzy, where was that advice before I bought my copy stand "x" number of months ago?

Anyway, I use a copy stand, mainly because of my "unsteadiness", in conjunction with the delay on my camera, so I can push the button and stand back for a somewhat steady shot.
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SsuperDdave's Avatar
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 Posted 02/12/2012  7:30 pm  Show Profile   Bookmark this reply Add SsuperDdave to your friends list Get a Link to this Reply
I don't know why you'd want a lightbox, but it seems like an appropriately-cut gallon plastic milk jug might do the trick nicely, depending on the size of the camera's lens.
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Drsandman2's Avatar
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 Posted 02/12/2012  7:45 pm  Show Profile   Bookmark this reply Add Drsandman2 to your friends list Get a Link to this Reply
With the camera so close to the coin, it is hard to get adequate lighting on the coin. IE, you have to shoot it through the gap. I've been using a headlamp temporarily. If I had a light box, a round one would be better, it would diffuse the light across the coin.

Thanks for the tip Fuzzy, but its a bit fuzzy what you are doing. What do you use for a light source.

SuperDave, that just might work.
Edited by Drsandman2
02/12/2012 7:49 pm
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Fuzzy317's Avatar
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 Posted 02/12/2012  8:39 pm  Show Profile   Bookmark this reply Add Fuzzy317 to your friends list Get a Link to this Reply

Quote:
oih82w8

Fuzzy, where was that advice before I bought my copy stand "x" number of months ago?



Quote:
Drsandman2

Thanks for the tip Fuzzy, but its a bit fuzzy what you are doing. What do you use for a light source.

I use a copy stand with its lights. I could never get the lighting set the way I wanted, so I use a see-through container to defuse the light.
First picture is the setup (ignore the junk in the background)
Small-Light-Box

Picture just taken with setup. Digital camera on stand, 2012 ASE on the upside-down pencil cup at the center.
Small-Light-Box
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Drsandman2's Avatar
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 Posted 02/12/2012  8:50 pm  Show Profile   Bookmark this reply Add Drsandman2 to your friends list Get a Link to this Reply
Awesome, Fuzzy! Thanks a ton!

Great junk in the background, btw. :D
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Drsandman2's Avatar
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 Posted 02/12/2012  8:56 pm  Show Profile   Bookmark this reply Add Drsandman2 to your friends list Get a Link to this Reply
LOL, the cheap method involves a $150 copy stand. :D

I didn't know those existed! Is that a Zykkor? What type bulbs and what wattage? I'm ordering one now...
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Fuzzy317's Avatar
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 Posted 02/12/2012  9:16 pm  Show Profile   Bookmark this reply Add Fuzzy317 to your friends list Get a Link to this Reply
Could not find brand name, but I probably ordered it from Amazon. Bulbs are 40 watt soft white incandescent. I thought florescent cast an odd color.
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Drsandman2's Avatar
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 Posted 02/12/2012  9:20 pm  Show Profile   Bookmark this reply Add Drsandman2 to your friends list Get a Link to this Reply
Awesome! I'll post pics when I get set up! :D
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carmykle's Avatar
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 Posted 02/13/2012  09:52 am  Show Profile   Bookmark this reply Add carmykle to your friends list Get a Link to this Reply
Brilliant set up. Wish I had that here in Florida. Just took some pics of a 1852 GD and they came out just so-so. I'm also having trouble uploading from my IPad.
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 Posted 02/14/2012  5:59 pm  Show Profile   Bookmark this reply Add oih82w8 to your friends list Get a Link to this Reply
Fuzzy, I have the same copy stand, minus the lights. I am going to try the "clear tote" difuser method.
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Drsandman2's Avatar
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 Posted 02/16/2012  4:57 pm  Show Profile   Bookmark this reply Add Drsandman2 to your friends list Get a Link to this Reply
The stand came in today, I'm gonna grab some of the totes and try to post pics tomorrow!
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 Posted 02/17/2012  11:02 am  Show Profile   Bookmark this reply Add rmpsrpms to your friends list Get a Link to this Reply

Quote:
... I have a larger container as a light defuser.


The big container also helps keep the coins from running away when they get frightened by the bright lights. :-)

Keep in mind the ONLY light you want hitting the camera lens and sensor is that coming directly from the coin. Light coming from other sources will cause "flare" and will significantly reduce the contrast of the coin. Any diffusers that you use down near the coin will also diffuse light up to the lens and sensor. You can see this low contrast effect on the 2012 ASE photo.

Another factor in reducing contrast on these mega-diffuser setups is that there is too much light coming at the coin from the sides. I've tried literally dozens of setups like this, and in every case they benefited from limiting the lighting angle to at least 45-deg, ie block all light hitting the coin from 45-deg or below. This is very easy to do by cutting a narrow strip of black paper and taping it around the inside of your diffuser closest to the coin.

An even easier way to do this is to build a "diffusion-illuminated" lens hood. Get a hood for your lens, small as you can get (using step-downs is even better!) and then attach your diffuser cup or container (with bottom cut out, just a cylinder) to the lens hood. Adjust the amount the diffuser hangs below the lens hood so that it does not put too much side-lighting on the coin and up-lighting toward the lens. What you end up with is essentially a diffuse ring light. I actually did this on a couple of earlier setups and it worked pretty well and can be used with existing lighting.

...Ray
Contact me for photographic equipment or visit my home page at:
http://macrocoins.com
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 Posted 02/17/2012  11:07 am  Show Profile   Bookmark this reply Add rmpsrpms to your friends list Get a Link to this Reply
By the way, I refer to the "look" of the 2012 ASE image as "reverse illuminated". All the highlights are on the edges of the design features. This is because you have ALL the light coming in from the sides, and reflecting off the edges of the features toward the camera. This is a very unnatural look. It's a result of the diffusers only existing on the sides and below the coin, which is the exact opposite of what you are striving for with coin illumination.
Contact me for photographic equipment or visit my home page at:
http://macrocoins.com
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1374 Posts
 Posted 02/17/2012  5:01 pm  Show Profile   Bookmark this reply Add Drsandman2 to your friends list Get a Link to this Reply
Here are some of my first pics. I have a long way to go with the lighting and diffusion, obviously. I think it is so intense that my camera isn't focusing adequately. All I have time more for today. Thanks for looking!

The links below go to the full 6MB image. Shot with a Sony Cybershot DSC-T110 16.1 MP point and shoot. The camera does not zoom in macro mode, so the camera has to be pretty close to the coin. So the buckets of diffusers wont really work. I used two 23w florescent flood bulbs that have diffusors covering the bulb.

(The 1877 Half is my pocket piece)

www.doublejackauctions.com/CopyStand


Small-Light-Box
Edited by Drsandman2
02/17/2012 5:03 pm
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