Best I Can Get On A $400 Budget? Help - Page 22

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Author	Replies: 612 / Views: 111,713	Page: of 41

TobyJ Pillar of the Community United Kingdom 1273 Posts	Posted 01/31/2017 07:43 am Thanks for pointing that out pepactonius, I'd have had no clue. I'll wait to get these links I posted verified before I buy them :D EDIT: Ah my bad, you were talking about the objective, which I'm not concerned about just yet Edited by TobyJ 01/31/2017 07:46 am Report this Post to the Staff
pepactonius Pillar of the Community United States 9395 Posts	Posted 01/31/2017 08:01 am Quote: I'll wait to get these links I posted verified before I buy them :D If you don't really need high-magnification, the next step might be getting a bellows and/or axial lighting stuff, rather than the microscope objectives. Before getting into microscopy, it might be useful to hang out over at the photomacrography.net forum for a while. Report this Post to the Staff
TobyJ Pillar of the Community United Kingdom 1273 Posts	Posted 01/31/2017 08:17 am I'll check that website out. Sorry to be a pain, but I'm a bit confused. If I don't need the Plan 4 objective, do I need all the accessories on that list? Report this Post to the Staff
rmc Valued Member Canada 478 Posts	Posted 01/31/2017 08:29 am The M42 to RMS is the adapotor needed for the Plan 4 objective Report this Post to the Staff
rmc Valued Member Canada 478 Posts	Posted 01/31/2017 08:37 am Here is the basic setup..... Camera...EOS to M42 Adapter...Helicoid...Extensions...75mm EL-Nikkor Lens OR Camera...EOS to M42 Adapter...Helicoid...M42 to RMS Adapter...Plan4 Edited by rmc 01/31/2017 08:45 am Report this Post to the Staff
TobyJ Pillar of the Community United Kingdom 1273 Posts	Posted 01/31/2017 08:42 am Gotcha, thanks for clearing that up. I'll use the first, with extensions. Report this Post to the Staff
Justwalking Valued Member Russian Federation 172 Posts	Posted 01/31/2017 08:50 am TobyJ, you need scale 1:2 to 2:1 for your camera sensor if you want only full size coins. So for your Nikon enlarger lens you must have extention ring about 70 to 170 mm for all coins from 11 to 44 mm size You can buy 2 helicoids M42 35-90 mm and combine both (70 to 180mm) Working distance would be about 230 to 100 mm approx. Edited by Justwalking 01/31/2017 08:51 am Report this Post to the Staff
TobyJ Pillar of the Community United Kingdom 1273 Posts	Posted 01/31/2017 08:53 am Just looking for extensions in The UK, are these correct? http://www.ebay.co.uk/itm/Set-of-3-...AOSwMtxXtCWk http://www.ebay.co.uk/itm/ASTRON-EX...AOSw4GVYPoX6 The set of three looks like a good buy? Report this Post to the Staff
rmc Valued Member Canada 478 Posts	Posted 01/31/2017 08:55 am Justwalking...that's not necessary. I use 1 helicoid and 1 set of extensions and I get perfect results! Edited by rmc 01/31/2017 08:56 am Report this Post to the Staff
Justwalking Valued Member Russian Federation 172 Posts	Posted 01/31/2017 08:56 am If you confirm to reassemble your construction each time for varios size of coins such extension will be OK. Report this Post to the Staff
rmc Valued Member Canada 478 Posts	Posted 01/31/2017 08:59 am That's not the case either....I set my extensions for the largest coin and it works for all! I never reset anything for different size coins Report this Post to the Staff
Justwalking Valued Member Russian Federation 172 Posts	Posted 01/31/2017 08:59 am rmc, probably your coins have not big difference in size And yes, you can take just crop of of small coin without true 2:1 scale Edited by Justwalking 01/31/2017 09:04 am Report this Post to the Staff
rmc Valued Member Canada 478 Posts	Posted 01/31/2017 09:02 am Coin sizes 15 mm to 36 mm(silver Dollar) Edited by rmc 01/31/2017 09:03 am Report this Post to the Staff
Justwalking Valued Member Russian Federation 172 Posts	Posted 01/31/2017 09:05 am Are you using 75mm Nikon on aps-c sensor also? Edited by Justwalking 01/31/2017 09:14 am Report this Post to the Staff
rmc Valued Member Canada 478 Posts	Posted 01/31/2017 09:31 am Yes...I use the that lens. Here are some of my pictures and no reassembly has been done... Report this Post to the Staff
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