I've no idea, possibly automotive. It's really, really, really old which is another reason it's not very dense.
On Wed, Jan 16, 2013 at 11:52 AM, Bruce Walker <bruce.wal...@gmail.com> wrote: > That's very cool, Wendy. BTW, what component is the chip used in? It > looks relatively low density, like a few gates and flip-flops. > > > On Wed, Jan 16, 2013 at 11:24 AM, wendy beard <pointyp...@gmail.com> wrote: >> Pretty neat abstracts! >> >> I must try and do some more macro photography. Some years ago I tried >> some of a wafer, using the K10 and sigma 180mm macro plus extension >> tubes. >> >> This is the wafer >> http://www.pbase.com/wendybeard/image/111769543 >> >> and this is what I got >> http://www.pbase.com/wendybeard/image/111757295 >> and a crop of one of the die >> http://www.pbase.com/wendybeard/image/111757296 >> >> Wendy >> >> On Tue, Jan 1, 2013 at 10:58 AM, Bruce Walker <bruce.wal...@gmail.com> wrote: >>> Pretty cool, John. Ruler-wise you can't see the forest for the trees, >>> but they yield very abstract, intriguing images. >>> >>> >>> On Mon, Dec 31, 2012 at 9:40 PM, John Celio >>> <neo.venator.com+p...@gmail.com> wrote: >>>> I shot a couple photos of a metric ruler just now. For anyone >>>> wondering what the magnification of that super-crazy macro setup of >>>> mine can do, here they are: >>>> >>>> http://www.flickr.com/photos/26065300@N00/8332245842/ >>>> Pentax FA 50mm f1.4 (at f5.6) reverse mounted on my pile o' extension >>>> tubes. Field of view is a bit more than 4mm. Let's play it safe and >>>> say 4.2mm. >>>> If I've done the math correctly (K-5 sensor is 23.4mm wide), this >>>> means it has a magnification ratio of 5.57:1 >>>> >>>> http://www.flickr.com/photos/26065300@N00/8331187951/ >>>> Cosina 28mm, same setup as above. FoV is a bit more than 2mm. I'm >>>> guessing 2.2mm. >>>> Again, if my math is right, magnification ratio of 10.6:1 >>>> >>>> Wow! >>>> >>>> The 50mm seems to produce somewhat sharper images, so I'll probably >>>> use that lens for this sort of stuff until I find a really, really >>>> (really) good 28mm lens someday. Magnification like this needs >>>> something sharp as a razor, apparently! >>>> >>>> John >>>> >>>> -- >>>> PDML Pentax-Discuss Mail List >>>> PDML@pdml.net >>>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>>> follow the directions. >>> >>> >>> >>> -- >>> -bmw >>> >>> -- >>> PDML Pentax-Discuss Mail List >>> PDML@pdml.net >>> http://pdml.net/mailman/listinfo/pdml_pdml.net >>> to UNSUBSCRIBE from the PDML, please visit the link directly above and >>> follow the directions. >> >> >> >> -- >> Wendy Beard >> Carp, Ontario >> Canada >> >> -- >> PDML Pentax-Discuss Mail List >> PDML@pdml.net >> http://pdml.net/mailman/listinfo/pdml_pdml.net >> to UNSUBSCRIBE from the PDML, please visit the link directly above and >> follow the directions. > > > > -- > -bmw > > -- > PDML Pentax-Discuss Mail List > PDML@pdml.net > http://pdml.net/mailman/listinfo/pdml_pdml.net > to UNSUBSCRIBE from the PDML, please visit the link directly above and follow > the directions. -- Wendy Beard Carp, Ontario Canada -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
