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 Replies: 19 / Views: 2,935 |
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Moderator
 United States
23522 Posts |
I'm looking at this on my cellphone, so the image is not nearly as clear as it will be in a couple hours when I get home to my regular monitor. A thought, though:
Imagine this image being shot with a fully-automatic camera and autofocus. The camera chooses the widest-open aperture, thereby minimizing depth of field. Given conflicting information and maybe an unsophisticated internal processor, the camera settles on the rim for its' focus as the point of maximum contrast.
What might that image look like?
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Pillar of the Community
 United States
4596 Posts |
Just because the image name is 20131020_KGrHqVnsFJNQZcqBSZSy4s0Q60_57---photoshop_opt?
-----Burton 50+ year / Life / Emeritus ANA member (joined 12/1/1973) Life member: Numismatics International, CONECA Member: TNA, FtWCC, NETCC, EveryCountry (online) coin club Owned by three cats and a wife of 40+ years (joined 1983) Author: 3rd Edition of the Sample Slabs book, https://www.sampleslabs.info/ |
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Pillar of the Community
United States
5825 Posts |
Peace dollars have very low relief. It's not a very good image but I don't think it's been photoshopped.
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Pillar of the Community
1751 Posts |
Looks more like a scan to me. No PS.
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Pillar of the Community
United States
1812 Posts |
Quote:
Imagine this image being shot with a fully-automatic camera and autofocus. The camera chooses the widest-open aperture, thereby minimizing depth of field. Given conflicting information and maybe an unsophisticated internal processor, the camera settles on the rim for its' focus as the point of maximum contrast.
Imagine the headache I now have trying to understand what SsuperDdave said.  |
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Moderator
United States
23522 Posts |
Quote:
Imagine the headache I now have trying to understand what SsuperDdave said.
 Come to the Photography Forum. We'll learn ya.  With the coin on my PC monitor, my opinion is unchanged. All I see is shoddy photography or a camera that just isn't up to shooting slabs. |
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Pillar of the Community
 Canada
618 Posts |
I agree with shoddy focus issues. this is ebay seller---CENTSLES--150,000 feedback reviews. All of his photos are mostly like this. |
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Pillar of the Community
Canada
618 Posts |
Thank you Superdave--not photoshop job.
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Bedrock of the Community
United States
10045 Posts |
Well...maybe it was stuck under a scanner. That may explain the weird contrast.
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Moderator
United States
23522 Posts |
Quote:
Well...maybe it was stuck under a scanner. That may explain the weird contrast.
Yeah, in hindsight, it's a scan which pretty much explains everything. |
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Pillar of the Community
United States
9796 Posts |
Some higher end scanners (flatbed) do have the ability to focus, my Epson Expression Artist series does, due to having a transparency lid attached. It can vary the focus about 7mm which is a big help in scanning coins or other 3D objects. It does this because when scanning negatives or positive slides in a film carrier they are raised above the scanner glass while in the film holder, coins in slabs or other holders are similar, and if your scanner has this focus feature don't over look it!
"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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Pillar of the Community
1751 Posts |
Yeah, a seller that does volume like that has no real choice but to scan unless they want to spend a lot of time imaging and cropping.
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Moderator
United States
23522 Posts |
Quote:
Yeah, a seller that does volume like that has no real choice but to scan unless they want to spend a lot of time imaging and cropping.
The only advantage scanning has over photography is the ability to simultaneously scan a "grid" of coins. The level of postprocessing for cropping, sizing and saving really doesn't change over camera imaging. And once you've got the process down - as I'm sure you've now realized, having joined the ranks of serious dSLR shooters - you can hit some pretty serious production rates with a camera. |
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Pillar of the Community
1751 Posts |
I did some math... if I charged $4 per coin and shot 30 coins per day, I could make $30k a year working 3 hours a day. That's at 6 minutes or so per coin, including cropping and whatnot. Reminds me, I need to get over to the photography section and have you guys school me on how to use photoshop properly.
Edited by FadeToBlack
10/21/2013 4:48 pm
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Moderator
United States
23522 Posts |
It's the postprocessing that's the real hangup even if you're shooting coins of varying surfaces - you can switch settings in Zoom Browser so quickly that if you know what you need, the changeover between a lustrous MS66 Morgan and a circulated, Brown Lincoln is mere seconds. 6 minutes per coin, total, is probably pessimistic if you're really cookin'. I won't be able to help much with Photoshop, having abandoned it in 2005 or so when I switched to the Gimp, but there's a few in the Photography Forum who should be able to help.
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Replies: 19 / Views: 2,935 |
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First Page
Posted 10/20/2013 09:34 am
