Magnified shots of ziploc seals
Rob Cockerhamfrom Cockeyed.com is continuing his ongoing experiments with his Eyeclops magnifying digital camera, this time shooting high-mag photos of four different brands of ziploc seals.
Link (Thanks, Rob!)
The "double" seal is more robust, but it doesn't actually have more connection hooks. The "male" side of the single zipper seal is split, creating two independent hooks from one mushroom-cap shaft.
See also: Geeking out over velcro-like fasteners in infant wares
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Hey, ziplocs! I've done this too! I took a small lens from an old viewfinder and taped it over a common digital camera, the aperture reduced by a piece of aluminium foil with a hole in it. Still a terrible depth-of-field, I tell you. Without any direct visual feedback it's only by sheer luck that you get the focus right, even when the object is hold in place with a soldering aid.
After the first few tries I gave up, because that gosh darned Sony camera has to be turned off each time you want to download a new image, and before you can take another image you have to plug it out again. Who designs idiotic devices like this anyway...
Aside from using a really sharp blade, it helps to freeze the plastic (thus hardening it) with a squirt of electronics cooling spray, to avoid those frayed-out edges on the cut or squashing the seal out of shape.
Here's what I got: (after cropping, color balancing, clarity filtering)
http://imageupper.com/i/?S0700010040011F2059319132077860
http://imageupper.com/i/?S0700010040021F2059319132077860
("Held", not "hold". Would you believe I'm a compulsive-obsessive previewer...)
speaking of eyeclops...
A friend and I dissected one and here's what we found. It's pretty funny!
I've got your male mushroom-capped shaft right here!!
Wait, you mean ziplocs actually aren't witchery?