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shared reference silicon wafer for comparisons
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chris_ma



Joined: 22 Mar 2019
Posts: 212

PostPosted: Thu Feb 27, 2020 10:26 am    Post subject: Reply with quote

with unsharp mask added in photoshop, 100% radius 1:




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houstontx



Joined: 31 Jul 2015
Posts: 299

PostPosted: Tue Mar 03, 2020 10:14 am    Post subject: Reply with quote

Any update on this, did an order get made?

Thanks,
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lothman



Joined: 14 Feb 2009
Posts: 418
Location: Stuttgart/Germany

PostPosted: Tue Mar 03, 2020 10:30 am    Post subject: Reply with quote

houstontx wrote:
Any update on this, did an order get made?

Thanks,


Update:
I ordered/payed and received 20 Wafer but accidentaly packed in 10 mailing boxes, so currently I'm waitung for 10 additional boxes before I can ship them individually.

I also taped the small Toshiba Chip beside the testwafer (easy removable if not used).

I also will add two microscope slides with 15x15mm pieces of sanding paper in grit sizes 120/220/400/800 and 1200/2000/2500/4000. The one or other might find this helpful to compare lenses or judge a homogenous behaviour of the test lens.

regards
Lothar
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dolmadis



Joined: 07 Dec 2011
Posts: 681
Location: UK

PostPosted: Tue Mar 03, 2020 11:56 am    Post subject: Reply with quote

Thank you, Lothar.

BR

John
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lothman



Joined: 14 Feb 2009
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Location: Stuttgart/Germany

PostPosted: Tue Mar 03, 2020 2:54 pm    Post subject: Reply with quote

This you will receive:


both Chips:
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dmillard



Joined: 24 Oct 2006
Posts: 581
Location: Austin, Texas

PostPosted: Tue Mar 03, 2020 3:03 pm    Post subject: Reply with quote

lothman wrote:
This you will receive:


Thank you Lothar for investing your time, energy, and thoughtfulness into this project!

Best regards,
David
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Smokedaddy



Joined: 07 Oct 2006
Posts: 1685
Location: Phoenix, Arizona

PostPosted: Tue Mar 03, 2020 8:31 pm    Post subject: Reply with quote

Sweet, excellent job, just like the gear you have available.
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lothman



Joined: 14 Feb 2009
Posts: 418
Location: Stuttgart/Germany

PostPosted: Wed Mar 04, 2020 2:58 pm    Post subject: Reply with quote

I just sent a bunch of PM with my PayPal adress.
If you send me via "sending to friend" please add a shipping address because using "Friends" payment without fees no address data is transmitted.

Shipment will be done via Deutsche Post, tracking
https://www.deutschepost.de/sendung/simpleQuery.html
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Macro_Cosmos



Joined: 15 Jan 2018
Posts: 632
Location: Sydney

PostPosted: Thu Mar 05, 2020 11:26 am    Post subject: Reply with quote

Thanks for your help Lothman, looking forward to getting the chips!

I found another candidate:



Here's what the thing looks like:


I'll get some panoramas up later. I'm not going to do another stack with my Z6 until the card reader comes. Having to transfer photos via USB-C makes me want to grind my radioactive lenses into sand and eat it.

I don't know what that last bit was supposed to mean... Rolling Eyes
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lothman



Joined: 14 Feb 2009
Posts: 418
Location: Stuttgart/Germany

PostPosted: Thu Mar 05, 2020 3:55 pm    Post subject: Reply with quote

Gentlemen,

everything is packed and will be shipped soon.

Just a suggestion for the next time, if you could provide a seller those infos together:

Forum_nickname
real name
address

this would help a lot, just took me an hour to figure everything out

regards
Lothar


P.S.: I'm curious what you think about the sanding paper

Edit
P.S.: All Chips are shipped


Last edited by lothman on Sun Mar 08, 2020 7:07 am; edited 1 time in total
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Bob-O-Rama



Joined: 06 Dec 2014
Posts: 64
Location: Allentown, PA, USA, Earth, etc.

PostPosted: Fri Mar 06, 2020 7:52 am    Post subject: Reply with quote

I ended up getting mine in the mail yesterday. I hope to have some time this weekend to use them for playing with the $100 Nikon 20x 0.75.
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RobertOToole



Joined: 17 Jan 2013
Posts: 1589
Location: United States

PostPosted: Fri Mar 06, 2020 8:01 pm    Post subject: Reply with quote

Macro_Cosmos wrote:

Here's what the thing looks like:



This is a 12 inch wafer, I might have this one?

I have too many disks they are starting to look alike Shocked

Good job finding this one MC!

Best,

Robert
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Lou Jost



Joined: 04 Sep 2015
Posts: 4264
Location: Ecuador

PostPosted: Fri Mar 06, 2020 8:26 pm    Post subject: Reply with quote

Macro-cosmos, where does one get these?
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RobertOToole



Joined: 17 Jan 2013
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Location: United States

PostPosted: Sat Mar 07, 2020 1:19 pm    Post subject: Reply with quote

Lou Jost wrote:
Macro-cosmos, where does one get these?


No idea where MacroCosmos sourced his but there are two for sale on eBay now for$100+. I'm used to paying something like $10 each...not $100+.


https://www.ebay.com/itm/Very-Rare-Copper-12-IC-Microchip-Silicon-Pattern-Wafer-with-Blue-Background/233511904329?

https://www.ebay.com/itm/Rare-12-300mm-Copper-Tantalum-IC-Microchip-Silicon-Pattern-Wafer/233517679780?



The seller probably picked up an entire stack of these for $20, he's going to make a killing if he can get $100 each.

Best,

Robert
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RobertOToole



Joined: 17 Jan 2013
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PostPosted: Sat Mar 07, 2020 1:30 pm    Post subject: Reply with quote

Macro_Cosmos wrote:

I found another candidate:




Just checked and I do have this one, its 12 inches across!

I think I paid something like $25 for a dozen various twelve inch wafers and one of this type was included.

Best,

Robert
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