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 Replies: 97 / Views: 17,911 |
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Pillar of the Community
United States
9792 Posts |
John1 sort of I suppose, you are correct, but every grey card I can find sold (at the pro shops like B&H anyways) still says they are all 18% grey.  https://www.bhphotovideo.com/c/sear...0card&sts=maBut the meters in the newer cameras are probably calibrated differently than the meters were in the film days in cameras and handheld meters like my old Sekonic. I'm no electronic or software engineer so I can't really comment on that with any accuracy.  "Buy the Book Before You Buy the Coin" - Aaron R. Feldman - "And read it" - Me 2013! ANA Life Member #3288 in good standing since 1981, ANS, Early American Coppers Member (EAC), Colonial Coin Collectors Club member (C4), Conder Token Collector Club member (CTCC), Civil War Token Society (CWTS) member, Liberty Seated Collectors Club (LSCC) & Numismatic Bibliomania Society member (NBS), USMex, Member in good standing, 2¢ variety collector. See my want page: http://goccf.com/t/140440 |
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Rest in Peace
United States
2668 Posts |
I just read this whole thang and you all have convinced me to upgrade.
on the subject of focus and close ups....
Years ago the wife and I saw a news article on TV about a guy that operated an electron microscope. He said, "I turned this here to mid-range and this all the way up; and, I got pictures of atoms."
He had pics of atoms that didn't look quite like anything I had ever seen before. I told the wife that we would have to follow this story.
Never. Saw. Anything. On. It. Again.
Ever.
Parklane64
(we need an emoji with a trench coat)
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Pillar of the Community
United States
9792 Posts |
Parklane64 - here is my CCF thread on electron scopes earlier in this forum section. http://goccf.com/t/396008and here is a photo of CCF member's (SPP-Ottawa) electron microscope he has access to through his work: http://goccf.com/t/366712&whichpage=4#3217381He knows a lot more about them than I do for sure, so if you really have burning electron microscope questions he's the goto guy here at CCF. "Buy the Book Before You Buy the Coin" - Aaron R. Feldman - "And read it" - Me 2013! ANA Life Member #3288 in good standing since 1981, ANS, Early American Coppers Member (EAC), Colonial Coin Collectors Club member (C4), Conder Token Collector Club member (CTCC), Civil War Token Society (CWTS) member, Liberty Seated Collectors Club (LSCC) & Numismatic Bibliomania Society member (NBS), USMex, Member in good standing, 2¢ variety collector. See my want page: http://goccf.com/t/140440 |
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New Member
Slovenia
31 Posts |
What about the Tomlov DM201 Max with 25MP Sony IMX sensor and/or DM401 2K? Are they any better (, for coins)? |
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Pillar of the Community
United States
9792 Posts |
The Tomlov seem pretty well regarded from reviews I've seen, but have never used nor seen one in person so I can't say, maybe others here have some experience with them. I see them used often with electronic repair guys but not so much with coin collectors in the reviews. "Buy the Book Before You Buy the Coin" - Aaron R. Feldman - "And read it" - Me 2013! ANA Life Member #3288 in good standing since 1981, ANS, Early American Coppers Member (EAC), Colonial Coin Collectors Club member (C4), Conder Token Collector Club member (CTCC), Civil War Token Society (CWTS) member, Liberty Seated Collectors Club (LSCC) & Numismatic Bibliomania Society member (NBS), USMex, Member in good standing, 2¢ variety collector. See my want page: http://goccf.com/t/140440 |
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New Member
Slovenia
31 Posts |
Thank you for your reply. Already have the Pluggable 2MP USB microscope so not sure if I should upgrade. They've just released another version, Tomlov DM601, with three interchangeable lenses, one of them specifically for coins... |
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Pillar of the Community
United States
9792 Posts |
Quote:
Tomlov DM601, with three interchangeable lenses, one of them specifically for coins... Here is what I found, nothing special about the lens other than it's designed to be used at a distance farther away from the coin.  I doubt it is special for coins only just the distance to subject is all. Useful for soldering work or larger coins. I'd assume the lens is plastic as well at this price. They copy below is heavily edited of readability by me, obvious they used a poor translation program to make it from Russian or Chinese? Here are the new add-on specs: Quote:Features DM-601 The First triple Lens Digital Microscope-See more! The DM601 is the first digital microscope with triple lens from Tomlov, which features lens A for error coins inspection, lens L for micro soldering and lens D for biological silde observation.Tri-camera with different focal range provides wider field of view and clearer images, helps survey from different angles * Basic Coin Lens A - Inspect Coins from Details to Full View Tomlov DM601 coin microscope for error coins can capture a coin in full. Upgraded with lens A and longer 10 inch stand, it's easy to get the entire coin view of dime, penny, nickel, quarter, dollar, even the large silver dollar * Enhanced Soldering Lens L - View PCB Board with Larger Working Range Lens L has a long focal length (3.5-7.5), enables users to perform work or manipulate large items, including circuit boards or other SMD soldering work. This soldering microscope camera has widefield of view and extremely large working distance-no worries of crashing your soldering iron or tools into the scope * Special Biological Lens D -Observe Sildes with Great Details Equipped with biological Lens D, bottom transmitted light and prepared slides, Tomlov lcd digital microscope is designed to help students/kids/adults/beginner/amateur scientist/hobbyists exploring the fantastic world of the life. It is ideal for school,laboratory or home teaching, one-on-one instruction "Buy the Book Before You Buy the Coin" - Aaron R. Feldman - "And read it" - Me 2013! ANA Life Member #3288 in good standing since 1981, ANS, Early American Coppers Member (EAC), Colonial Coin Collectors Club member (C4), Conder Token Collector Club member (CTCC), Civil War Token Society (CWTS) member, Liberty Seated Collectors Club (LSCC) & Numismatic Bibliomania Society member (NBS), USMex, Member in good standing, 2¢ variety collector. See my want page: http://goccf.com/t/140440Edited by westcoin
11/20/2022 1:27 pm
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Bedrock of the Community
 United States
25237 Posts |
I ordered a Tomlov DM201 w/ 10 inch stand from Walmart. Fulfilled by Tomlov. What I received was a DM9 w/ 4inch stand.  It's going back tomorrow, but refund will take 3 weeks.  Inordinately fascinated by bits of metal with strange markings and figures
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Pillar of the Community
Australia
2529 Posts |
Great topic thanks Dearborn and all others contributing.
I have also ordered the DM201 Pro 10 inch 16MP. Coming on a slow boat from China. Est delivery in April.
When it arrives I'll be back here to pick the collective brains.
The Ox moves slowly, but the Earth is patient.
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Moderator
 United States
96129 Posts |
My pleasure TTK.  (glad we could help.) |
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Pillar of the Community
Australia
2529 Posts |
So my scope arrived a month early, woohoo. Seems the Chinese seller has a warehouse in Sydney. Very happy so far, but lighting has been my issue. I find the 2 side lights particularly useless and wondered if other users have the same thoughts. I have experimented a little and at the moment I am using a circular selfie light from Browse In.  This has rectified the glare issues I was having. My next issue is trying to achieve the actual colours of the coin in hand. The pics of copper bronze coins are pretty much colourless, bordering on B/W.  I messed with the white balance, and red blue green, but no good results. I can get the colours close after the fact using paint.net, but it would be nice to have them fairly close to reality as a raw image. Sorry for being so long winded. Any and all thoughts appreciated. The Ox moves slowly, but the Earth is patient.
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Moderator
United States
56855 Posts |
Lighting is a major factor in coin photos. Best to use one light bulb when taking pics of varieties usually at the 12 o'clock position and most time you need to filter that bulb. On my scope it has 8 LEDS and I had to block of all but the one at 12'oclock position and filter it. John1  |
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Pillar of the Community
Australia
2529 Posts |
That's interesting thanks John1.
I have started using a grey background with good results. For some reason the colours now seem more realistic.
The Ox moves slowly, but the Earth is patient.
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New Member
Australia
1 Posts |
Oh my...I am new to a coin forum.
I did weeks of reading and I have one of those on the way. I got it for my stamps.
I will plan on a cap to cover all but the 12 o'clock position.
Thanks for the heads up.
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Moderator
United States
56855 Posts |
Quote:
I have started using a grey background with good results 18% gray scale sheets are available on the bay. John1 |
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Replies: 97 / Views: 17,911 |
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Posted 09/10/2022 7:35 pm
