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<p>[QUOTE=&quot;Kaleun96, post: 8011235, member: 92635&quot;]I collaborated with Classical Numismatics on this video, he&#039;s using the <a href="https://artemis-collection.com/showcase/ultra-zoom/" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://artemis-collection.com/showcase/ultra-zoom/" rel="nofollow">Ultra Zoom tool from my website</a> that some of you might recognise (I&#039;ve shared it once or twice on here before).</p><p><br /></p><p>This was a problem I aimed to tackle with my site, namely not being able to share high resolution images. But the second thing you mention, about reminding viewers what part of the image to enlarge and view is something I had a go at addressing very recently in the Ultra Zoom tool on my site.</p><p><br /></p><p>Previously you could only link to the first image in the Ultra Zoom gallery so you&#039;d need to manually scroll to a specific coin and then zoom in on it. Now, I&#039;ve been able to capture this information in the URL so you can share a link to a specific coin as well as the zoom level and X&amp;Y co-ordinates., e.g. <a href="https://artemis-collection.com/showcase/ultra-zoom/#zoom=5.1598&amp;x=0.5993&amp;y=0.3247&amp;id=1118" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://artemis-collection.com/showcase/ultra-zoom/#zoom=5.1598&amp;x=0.5993&amp;y=0.3247&amp;id=1118" rel="nofollow">https://artemis-collection.com/showcase/ultra-zoom/#zoom=5.1598&amp;x=0.5993&amp;y=0.3247&amp;id=1118</a></p><p><br /></p><p>Building a website isn&#039;t for everyone but for those with one, or who are up to the challenge, I&#039;m happy to share how the Ultra Zoom tool works and some of the code. It largely uses an existing open-source plugin (OpenSeaDragon) so I didn&#039;t have to do too much myself to get it working.</p><p><br /></p><p><br /></p><p>Not sure about Doug but for the images in the Classical Numismatics video, they are all focus stacked. Typically the magnification is between 0.75x (e.g. for sestertii) and 1.25x (for some denarii or smaller denomination) and then I focus stack anywhere between 50 to 100 photos per side at 0.0625mm increments (which is a bit overkill). Switching from a 24MP APS-C to 42MP Full-Frame camera really made a big difference too, as I was able to capture so much more detail in every photo.</p><p><br /></p><p><br /></p><p>I can personally recommend the <a href="https://www.venuslens.net/product/laowa-100mm-f-2-8-2x-macro-apo/" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.venuslens.net/product/laowa-100mm-f-2-8-2x-macro-apo/" rel="nofollow">Laowa 100mm f/2.8 2x Macro</a> and this is the lens I use. The additional magnification above the usual 1x macro is quite useful for small coins but this lens is also incredibly sharp and well corrected for optical issues like chromatic aberration. On top of that, it&#039;s relatively cheap (e.g. compared to a Sony 90mm 1x Macro) and not too big but it is mostly a manual lens (manual focus, manual aperture - for the Sony version anyhow).[/QUOTE]</p><p><br /></p>

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