Anti-Newton Ring Glass - Source
Old 02-02-2018   #1
marekvesely
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Question Anti-Newton Ring Glass - Source

Hi guys,

I know that people here have a very good knowledge and experience with this so you might be able to help me out. I would really appreciate it!

I've been looking for a source of high-quality custom-cut ANR glass for my own medium-format scanner holder that I've been designing and working on.

It seems that Mike from Focal Point Optics now stopped his ANR glass production and business ( I talked to Mike and made an order right before hurricane Irma last year and I wasn't able to reach him since then - I hope he's doing well) and the ANR glass that could be custom-ordered on eBay/ScanTech (http://scan-tech.net) isn't working for me due to the anti-newton pattern showing up on my images with a scanner that actually resolves 5300DPI. I also talked to guys at BetterScanning but they also weren't able to point me to a source of high quality glass.

All I need is a custom cut piece of fine ANR glass at the size of 227mm x 65mm x 2mm. I have all my other parts of the holder 3D printed and all I'm missing is a good glass.

Do you by any chance know where could I order the glass? I'm based in Central Europe, but I'm visiting USA (California) this month so I could maybe figure out something US-based.

I'm sadly running out of ideas as to where I could get a really high-quality ANR glass nowadays.

Thank you very much for any help,

btw. it's a medium format glass holder for the Plustek OpticFilm scanner If this turns out well.. I'm all for sharing my 3D print designs..
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Old 02-02-2018   #2
BernardL
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I use glass plates with my Betterscanning holder and Epson V700. Bought from a framing store. This is so-called "anti-reflection" glass, actually slightly frosted; not vacuum coated museum glass (much more expensive). I use it just on the top side, with emulsion down (activate mirror option), to flatten the natural film curl. I have not seen any sign of the frosting pattern showing up in scans. I saw another forum post sharing the same experience.

This "anti-reflection" glass exists (at least around here) in two varieties, with one or two frosted sides. Obviously, if you have such a piece of glass between the film and the scanner lens, only the side against the film should have the "AR" frosting. Ideally, all surfaces between film and scanner lens should be "true-AR" (vacuum coated), like in the Epson V750/V850. An idea for upgrading a V700/V800. But I'm digressing.

Given the price (and availability??) of allegedly "photographic" ANR glass, you don't have much to lose following my suggestion and making a trip to a framing store.
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Old 02-02-2018   #3
SaveKodak
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Skip the anti newton ring glass. Just fluid mount. Scan Science can make you a kit. The results far surpass any dry scan. I fluid mount with my current PF120 Pro and I plan to with the Imacon 848 I am acquiring.
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Old 02-02-2018   #4
marekvesely
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Quote:
Originally Posted by SaveKodak View Post
Skip the anti newton ring glass. Just fluid mount. Scan Science can make you a kit. The results far surpass any dry scan. I fluid mount with my current PF120 Pro and I plan to with the Imacon 848 I am acquiring.
Oh wow! I never heard of these guys. Just looked up their website. They are really making custom wet mount kits for CCD scanners?

You just basically buy a glass plate from them and you somehow wet mount and tape the film to the glass plate that goes onto your default holder? I would be a little worried to put a wet mount into a CCD scanner. How are you actually mounting the film and sealing it?
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Old 02-02-2018   #5
Fixcinater
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Even on my lowly Canoscan 9000F, there was an easily seen, decidedly non-trivial improvement upon wet-scanning. I was ready to throw the scanner out of a train window but it's worth using with wet mounting.
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Old 02-02-2018   #6
Huss
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I use these guys for ANR glass. They are in Los Angeles.

https://www.ebay.com/itm/SCAN-TECH-A...TckFIB76GHIPOQ
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Old 02-03-2018   #7
marekvesely
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Quote:
Originally Posted by Huss View Post
I use these guys for ANR glass. They are in Los Angeles.

https://www.ebay.com/itm/SCAN-TECH-A...TckFIB76GHIPOQ
That's what I tried. Looks like a good product but on 5.300DPI scans I'm able to see the textured ANR layer. And nope - I'm not scanning through the glass. So that's why I'm looking for a different source...

It might also be due to the larger depth of field of the scanner's lens. I don't really know if "better" ANR glass will actually help me. I might need to look into a different types of glass - like the museum glass or other optically coated glass. But that's totally different price range.

Wet-mounting is the perfect solution at the cost of time. I'd still rather do dry mounting for most of my non-critical work.

Anyone else with ANR glass source tips?
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Marek Vesely [ DP / Camera Operator ]
[email protected] / Web / Instagram

---------------------------------------------------------------
[6x12] Fotoman 612 mk2 - Fujinon 75mm f/5.6 SWD
[6x9] Fujifilm GW690III - Fujinon 90mm f/3.5 EBC
[6x7] Pentax 67ii - SMC Pentax 55mm f/4.0
---------------------------------------------------------------
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Old 02-03-2018   #8
Merlijn53
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Quote:
Originally Posted by SaveKodak View Post
Skip the anti newton ring glass. Just fluid mount. Scan Science can make you a kit. The results far surpass any dry scan. I fluid mount with my current PF120 Pro and I plan to with the Imacon 848 I am acquiring.
Im interested in knowing how this works out on an Imacon.
Let us know.
Regards,
Frank
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Old 06-27-2018   #9
Texas Leica Ranger
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Quote:
Originally Posted by marekvesely View Post
That's what I tried. Looks like a good product but on 5.300DPI scans I'm able to see the textured ANR layer. And nope - I'm not scanning through the glass. So that's why I'm looking for a different source...

It might also be due to the larger depth of field of the scanner's lens. I don't really know if "better" ANR glass will actually help me. I might need to look into a different types of glass - like the museum glass or other optically coated glass. But that's totally different price range.

Wet-mounting is the perfect solution at the cost of time. I'd still rather do dry mounting for most of my non-critical work.

Anyone else with ANR glass source tips?

yes i'm not sure ANY type of glass would help you here - wet mounting perhaps ... either that or your focus may need adjustment.
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Old 09-27-2019   #10
Les Berkley
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Quote:
Originally Posted by Huss View Post
I use these guys for ANR glass. They are in Los Angeles.

https://www.ebay.com/itm/SCAN-TECH-A...TckFIB76GHIPOQ
I got some glass from them for my Polaroid 120. The pattern shows up in my scans. Works fine on an Epson.
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Old 09-27-2019   #11
Nokton48
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How not to ship AN Glass overseas by Nokton48, on Flickr

This is acid etched glass from a Durst 138 enlarger. I ordered it from a dealer in Austria. I was going to put it in a glass 5x7" negative carrier for the Omega Automega E3 5x7 Enlarger.

It arrived broken; I got a full refund but still searching for more Durst A/N glass
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