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Nikon Wednesday 2017: #20


Matt Laur

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When my wife is working on some of her etched silver pieces (she designs and makes jewelry), a sheet of silver is coated with an optical resist and cooked under UV behind a transparency carrying the design she's created (the design is printed with toner on a sheet of printer-friendly transparency). It's a lot closer to classical darkroom activity then I'VE seen in many years now, that's for sure!

 

The plate is then suspended in an etch solution and hit with an electrical charge for half an hour or so. The process eats away at the silver wherever the remaining resist layer doesn't cover it. The etched-away material falls down into the bottom of the etching tray as a pile of silver slurry. But because it's dense, it just lands there in a surprisingly recognizable version of the pattern being etched. Here's a shot of those leavings just after the plate has been pulled out of the electro-soup. In this case, it was nine 1-inch-ish pendants on a 3x3" sheet.

 

Shot anything that was left behind? Let's see some photos on this second to last Nikon Wednesday of may. Share!etch_leftovers.thumb.jpg.564583ba281383e3aad4a2bb1a39df65.jpg

Shot with a Sigma 105 macro on a D810.

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Not what I left behind but where I left it: Nikon Service and Repair Center on Wilshire Boulevard, Los Angeles. Left behind the 200-500 for their 2nd attempt to correct the aperture control failure/communication issue. Left my D500 too so they can test the lens with it.

Nikon D810 with Sigma 24/1.4 Art, 1/50s, f/8, ISO 2000.

34743319846_8ccaa2b21d_b.jpgNikon Service and Repair Center by Dieter Schaefer, on Flickr

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