Gigamacro Imaging System - Coin Community Forum

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Author	Replies: 7 / Views: 2,046
rmpsrpms Pillar of the Community United States 4037 Posts	Posted 01/10/2015 2:50 pm If you have a spare $48000, here is a nice imaging system for you! http://gigamacro.com/wp-content/upl...-2014-SM.pdf Notice it uses a Canon T3i with MPE65 lens and telecentric adapter. So the imaging hardware is not so expensive. The xyz stepper table is also probably not that expensive (a few $K) so most of the cost is probably the software. Anyway, it's pretty cool. If you look at the examples of coins they've imaged, the lighting is not too impressive. Contact me for photographic equipment or visit my home page at: http://macrocoins.com Report this Post to the Staff

SsuperDdave Moderator United States 23522 Posts	Posted 01/10/2015 3:16 pm A new member posted some detail pics with an MP-E setup the other day. I asked him to post a thread in here but he hasn't yet. Report this Post to the Staff
westcoin Pillar of the Community United States 9792 Posts	Posted 01/10/2015 5:04 pm I've used the Canon MP-E lens, very nice, a macro fine adjustment rail is a must though, along with a very stable copy stand or tripod. I played around with a Canon demo, (benefits of my ex-GF being a top Canon sales rep , she had anything I needed to borrow). I'll buy one eventually, but it's not on my list of most needed items right now, as the bellows set-up gets me there easily. $48K seems crazy for what you get in that set up. More like $4-5K maybe. I did enjoy their 3D Lincoln Cent photos. "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 Edited by westcoin 01/10/2015 5:08 pm Report this Post to the Staff
SsuperDdave Moderator United States 23522 Posts	Posted 01/10/2015 5:29 pm A lovely piece of kit, but probably overkill for coins. Coin photography would appeal to Colin Chapman: simplify, and add lightness. If I had my way I'd shoot with a single element between coin and sensor. Report this Post to the Staff
rmpsrpms Pillar of the Community United States 4037 Posts	Posted 01/10/2015 5:36 pm The MPE65's advantages are that it fits Canon EF mount natively, so works like a regular (manual) macro lens with info back to the camera and automatic aperture control. This is all a "must" for handheld macro, but gives no advantage for fixed setups. Of course another advantage is it's a zoom lens, but that becomes a disadvantage with regard to image quality. The MPE65 does fairly well in the 2-3x range, but the MP35 does even better. At 1x the MPE65 can be beat by a fixed-aperture 75ARD1 for $125, and at 3x-5x the MPE65 can be beat by $50 microscope objectives. All that said, the MPE65 has been used for many prize-winning photographs, so just like anything else, it comes down to technique, skill, and (occasionally) talent. Quote: If I had my way I'd shoot with a single element between coin and sensor. Absolutely Contact me for photographic equipment or visit my home page at: http://macrocoins.com Edited by rmpsrpms 01/10/2015 5:37 pm Report this Post to the Staff
SsuperDdave Moderator United States 23522 Posts	Posted 01/10/2015 6:46 pm Is there glass that good, if focal length and aperture weren't a problem (until stacking losses offset the gain)? Report this Post to the Staff
rmpsrpms Pillar of the Community United States 4037 Posts	Posted 01/10/2015 9:53 pm I think the limiting factor may not even be the MPE65, but the optics added to it to make it telecentric. As you allude, any extra glass in optical path is undesirable. If you look at the examples on the website, they look pretty good at mid-ranges, but at max mag they are not very sharp. Definitely they are strongly diffraction-limited. Contact me for photographic equipment or visit my home page at: http://macrocoins.com Report this Post to the Staff
austrokiwi Pillar of the Community 2087 Posts	Posted 01/11/2015 12:41 am For those, like me, who weren't sure what MPE 65 was: http://www.luminous-landscape.com/r...p-e-65.shtml Report this Post to the Staff
	Replies: 7 / Views: 2,046

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