shared reference silicon wafer for comparisons

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Moderators: ChrisR, Chris S., Pau, rjlittlefield

chris_ma
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Joined: Fri Mar 22, 2019 2:23 pm

Post by chris_ma »

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

Image

Image
chris

houstontx
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Post by houstontx »

Any update on this, did an order get made?

Thanks,

lothman
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Location: Stuttgart/Germany

Post by lothman »

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

dolmadis
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Post by dolmadis »

Thank you, Lothar.

BR

John

lothman
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Location: Stuttgart/Germany

Post by lothman »

This you will receive:
Image

both Chips:
Image

dmillard
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Location: Austin, Texas

Post by dmillard »

lothman wrote:This you will receive:
Thank you Lothar for investing your time, energy, and thoughtfulness into this project!

Best regards,
David

Smokedaddy
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Post by Smokedaddy »

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

lothman
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Location: Stuttgart/Germany

Post by lothman »

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

Macro_Cosmos
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Location: Sydney

Post by Macro_Cosmos »

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

I found another candidate:
Image
Image

Here's what the thing looks like:
Image

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... :roll:

lothman
Posts: 453
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Location: Stuttgart/Germany

Post by lothman »

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.

Bob-O-Rama
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Post by Bob-O-Rama »

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.

RobertOToole
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Post by RobertOToole »

Macro_Cosmos wrote: Here's what the thing looks like:
Image
This is a 12 inch wafer, I might have this one?

I have too many disks they are starting to look alike :shock:

Good job finding this one MC!

Best,

Robert

Lou Jost
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Post by Lou Jost »

Macro-cosmos, where does one get these?

RobertOToole
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Post by RobertOToole »

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-Copp ... 3511904329?

https://www.ebay.com/itm/Rare-12-300mm- ... 3517679780?

Image

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

RobertOToole
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Post by RobertOToole »

Macro_Cosmos wrote: I found another candidate:
Image

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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