{"id":657,"date":"2007-12-11T19:09:27","date_gmt":"2007-12-11T10:09:27","guid":{"rendered":"https:\/\/regex.info\/blog\/2007-12-11\/657"},"modified":"2007-12-18T23:30:26","modified_gmt":"2007-12-18T14:30:26","slug":"stupid-macro-tricks-photography-at-31-times-magnification","status":"publish","type":"post","link":"https:\/\/regex.info\/blog\/2007-12-11\/657","title":{"rendered":"Stupid Macro Tricks: Photography at 35-Times Magnification"},"content":{"rendered":"\n\n<div class='ic'><a name='042027' href=\"\/i\/JEF_042027.jpg\"\n><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/JEF_042027_sm.jpg\" width=\"690\" height=\"462\"\nalt=\"Japanese Banknote at 35 &amp;times; Magnification -- Kyoto, Japan -- Copyright 2007 Jeffrey Eric Francis Friedl, https:\/\/regex.info\/blog\/\"\nid=\"i042027\"\ntitle=\"Japanese Banknote at 35 &amp;times; Magnification -- Kyoto, Japan -- Copyright 2007 Jeffrey Eric Francis Friedl, https:\/\/regex.info\/blog\/\"\/><\/a>\n<br\/><span class='caption'>Japanese Banknote at 35 &times; Magnification<\/span>\n<\/div>\n\n\n<p>A couple of months ago I posted about <a\nhref=\"\/blog\/2007-10-16\/609\">basics of reverse-lens Macro\nphotography<\/a>, where <span class='nobr'>I showed<\/span> some items photographed with some\nmagnification that is considered fairly extreme by macro-photography\nstandards. <span class='nobr'>I threw<\/span> around &#8220;true but misleading&#8221; big numbers like &#8220;45,000\n&times;&#8221; in jest, but in the normal nomenclature of macro photography where\nmagnification is represented by the relative size of the object to its\nprojection on the film or digital sensor, the photographs in that post were\njust <span class='nobr'>a bit<\/span> less than 3 &times; magnification. Pretty strong stuff.<\/p>\n\n<p>I later posted an example at <a\nhref=\"\/blog\/2007-10-21\/612\">5 &times; magnification<\/a>,\nmaking the edge of <span class='nobr'>a compact<\/span>-flash memory card look like <span class='nobr'>a cheese<\/span>\ngrater.<\/p>\n\n<p>In today's post, macro images are at <span class='nobr'>a ridiculous<\/span> <b>34.7 &times;<\/b> magnification.<\/p>\n\n<div style='position:relative; width:702px' class='ic'><div>\n<a href=\"\/i\/IMG_6136.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/IMG_6136_sm.jpg\" width=\"690\" height=\"470\"\nalt=\"The Setup camera, lenses, and stuff &amp;nbsp;&amp;middot;&amp;nbsp; Flash and snoot &amp;nbsp;&amp;middot;&amp;nbsp; Reading lamp &amp;nbsp;&amp;middot;&amp;nbsp; Target Area (sort of) (mouseover the above to highlight their location in the image) -- Kyoto, Japan -- Copyright 2007 Jeffrey Eric Francis Friedl, https:\/\/regex.info\/blog\/\"\nid=\"i6136\"\ntitle=\"Ridiculous macro setup involving three extension tubes, two teleconverters, and a reversed zoom lens\"\/><\/a>\n<br\/><span class='caption'>The Setup<\/span>\n<br\/><span class='mob' onmouseover='mobin(this,\"d657c\")' onmouseout='mobout(this,\"d657c\")'>camera, lenses, and stuff<\/span>\n&nbsp;&middot;&nbsp;\n<span class='mob' onmouseover='mobin(this,\"d657b\")' onmouseout='mobout(this,\"d657b\")'>Flash and snoot<\/span>\n&nbsp;&middot;&nbsp;\n<span class='mob' onmouseover='mobin(this,\"d657a\")' onmouseout='mobout(this,\"d657a\")'>Reading lamp<\/span>\n&nbsp;&middot;&nbsp;\n<span class='mob' onmouseover='mobin(this,\"d657d\")' onmouseout='mobout(this,\"d657d\")'>Target Area (sort of)<\/span>\n<br\/><span class='subtle-less'>(mouseover the above to highlight their location in the image)<\/span>\n<div id='d657a' style='position:absolute; border:solid 3px red; left:186px; top: 53px; width:153px; height:147px; visibility:hidden'><\/div>\n<div id='d657b' style='position:absolute; border:solid 3px red; left: 73px; top:266px; width:293px; height:176px; visibility:hidden'><\/div>\n<div id='d657c' style='position:absolute; border:solid 3px red; left:337px; top: 32px; width:141px; height:378px; visibility:hidden'><\/div>\n<div id='d657d' style='position:absolute; border:solid 3px red; left:395px; top:438px; width:  9px; height:  9px; visibility:hidden'><\/div>\n<\/div><\/div>\n\n<p>The shot above, taken with my point-n-shoot, is not very clear, so I'll\nexplain <span class='nobr'>a bit.<\/span> (Mouseover the descriptions below the caption to highlight their location in the image.)<\/p>\n\n<p>The camera and a bunch of lenses and stuff (explained below) are\nattached to <a href=\"\/blog\/2007-08-17\/547\">my tripod<\/a>\nvia <span class='nobr'>a Really<\/span> Right Stuff <a\nhref=\"http:\/\/www.reallyrightstuff.com\/macro\/02.html\">B150-B Macro Focusing\nRail<\/a>. <span class='nobr'>The flash<\/span> is mounted on <span class='nobr'>a mini<\/span> tabletop tripod, and because <span class='nobr'>I\ncouldn't<\/span> really get it up close enough, <span class='nobr'>I snooted<\/span> it with some tinfoil to\nchannel those photons &ndash; those not lost to heating the foil &ndash;\nright to the target area. <span class='nobr'>The reading<\/span> lamp was to provide light during\nfocusing.<\/p>\n\n<p>In the photo above, the target is a 5&times;7 <a\nhref=\"http:\/\/www.whibal.com\/products\/whibal\/index.html\"\nclass='quiet'>WhiBal card<\/a>, which has <span class='nobr'>a little<\/span> ruler sticker on it. <span class='nobr'>The white<\/span> part of the sticker &ndash; totally washed out in the crappy photo\nabove &ndash; has <span class='nobr'>a one<\/span>-centimeter ruler on it with tiny little tickmarks\ndemarcating each of the 10 millimeters. Here's one:<\/p>\n\n<div class='ic'><a name='041977' href=\"\/i\/JEF_041977.jpg\"\n><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/JEF_041977_sm.jpg\" width=\"690\" height=\"462\"\nalt=\"Ruler Tick -- Kyoto, Japan -- Copyright 2007 Jeffrey Eric Francis Friedl, https:\/\/regex.info\/blog\/\"\nid=\"i041977\"\ntitle=\"A ruler tick from a WhiBal card, at 35-times magnification\"\/><\/a>\n<br\/><span class='caption'>Ruler Tick<\/span>\n<\/div>\n\n<p>The black tickmark is 0.312mm wide, which is 0.0123 inches, or\n1\/81<sup>st<\/sup> of an inch. <span class='nobr'>The full frame<\/span> is 0.679mm wide. <span class='nobr'>The actual<\/span> sensor is 23.6mm wide, which places the magnification at 34.748 &times; in\neach dimension.<\/p>\n\n<div style='margin-top:10px; float:right'><a href=\"\/i\/IMG_6138.jpg\"\n><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/IMG_6138_sm.jpg\" width=\"181\" height=\"600\"\nalt=\"Ridiculous macro setup involving three extension tubes, two teleconverters, and a reversed zoom lens\"\nid=\"i6138\"\ntitle=\"Ridiculous macro setup involving three extension tubes, two teleconverters, and a reversed zoom lens\"\/><\/a><\/div>\n\n<p>Put another way, it's equivelant to scanning at 144,805 dots per\ninch.<\/p>\n\n<p>The picture above is not very clear, for <span class='nobr'>a number<\/span> of reasons that will\nbecome apparent as <span class='nobr'>I explain<\/span> the setup that went into the shot.<\/p>\n\n\n<p>First let me list the equipment, from top to bottom as seen in the setup shot above and at right:<\/p>\n\n<ol>\n\n  <li>Nikon D200 camera body<\/li>\n\n  <li>Kenko 12mm extension tube (partially obscured by my shutter-release cable)<\/li>\n\n  <li><span class='nobr'>Kenko 1.4<\/span> &times; teleconverter<\/li>\n\n  <li>Kenko 20mm extension tube<\/li>\n\n  <li><span class='nobr'>Kenko 2<\/span> &times; teleconverter<\/li>\n\n  <li>Kenko 36mm extension tube<\/li>\n\n  <li>Nikon BR-2A lens-reversing adapter<\/li>\n\n  <li>Nikon BR-5 62mm adapter ring<\/li>\n\n  <li>Adorama <a href=\"http:\/\/www.adorama.com\/FLD7762.html\" class='quiet'>77mm-62mm step-down ring<\/a><\/li>\n\n  <li>Nikon <a href=\"\/blog\/2007-03-18\/398\" class='quiet'>17-55 f\/2.8 zoom<\/a> lens, at 17mm, reversed<\/li>\n\n<\/ol>\n\n<p>Let me say right away that I, too, recognize what I'm sure most of you\ninstinctively know: this setup is <i>really stupid<\/i>. Fun, yes, but not\nat all practical. First of all, the connection on all those Kenko products\nare not very good, so there's <span class='nobr'>a bit<\/span> of play between each. Adding them all\ntogether as <span class='nobr'>I did<\/span> here left the lens dangling like the swinging weight of <span class='nobr'>a\ngrandfather<\/span> clock. <span class='nobr'>It could<\/span> easily move side to size <i>half an inch<\/i>.\nThat absurd amount of &#8220;play&#8221; is not at all conducive to image quality.<\/p>\n\n<p>All that magnification means that you need more and more light right on\ntarget in order to be able to see anything, which meant that even when <span class='nobr'>I\nput<\/span> the bright halogen reading lamp as close to the target as possible, <span class='nobr'>I still<\/span> couldn't see anything through the viewfinder without opening up the\nlens' aperture. Even when opening it up all the way, what <span class='nobr'>I could<\/span> see was\ndim at best.<\/p>\n\n<p>As I discussed on the <a href=\"\/blog\/2007-10-16\/609\"\nclass='quiet'>reverse-lens-basics post<\/a>, to open the aperture on one of\nthese no-aperture-ring lenses, you need to gently move <span class='nobr'>a small<\/span> tab at the\nbase end of the lens (which becomes the far, business end when the lens is\nreversed). <span class='nobr'>I couldn't<\/span> do this by hand because the lens was just dangling\nthere, and the slightest touch moved the extremely small field of view\n(less than <span class='nobr'>a millimeter!<\/span>) completely off target. So, <span class='nobr'>I wedged<\/span> <span class='nobr'>a toothpick<\/span>\nto hold the tab open.<\/p>\n\n<p>Even though I could now dimly see something through the viewfinder,\nfocusing was still <span class='nobr'>a challenge<\/span> because of the extremely small depth of\nfield. Really Right Stuff makes some excellent stuff (<a\nhref=\"\/blog\/2007-08-17\/547\">the ballhead of my tripod<\/a>\nbeing simply amazing), but their <a\nhref=\"http:\/\/www.reallyrightstuff.com\/macro\/02.html\" class='quiet'>B150-B\nfocusing rack<\/a> left much to be desired in this situation.<\/p>\n\n<p>And let's face it: you can't expect much in the way of image quality\nwhen you slap together <span class='nobr'>a bunch<\/span> of different optical components, even if\nthey were well and firmly connected.<\/p>\n\n<p>So far, this is a &#8220;lose lose lose&#8221; situation, but it gets worse.\nVirtually nothing can be in focus when the lens is wide open, so one\ngenerally stops down all the way to increase the depth of field, but\nstopping down past <span class='nobr'>a certain<\/span> point tends to reduce sharpness due to\ndiffraction. <span class='nobr'>In this case<\/span>, images at f\/22 looked extremely muddy, as the\ntick-mark above shows. About the only thing clear in these shots is the\nindication that <span class='nobr'>I need<\/span> to clean the camera sensor.<\/p>\n\n<p>So, to get something a bit more sharp, <span class='nobr'>I need to<\/span> set the aperture\nsomewhere in the middle. <span class='nobr'>It's all a<\/span> rough guess based upon how <span class='nobr'>I shove<\/span> the\ntoothpick between the tab and the lens mount, and anyway, once <span class='nobr'>I do<\/span> that <span class='nobr'>I\nreally<\/span> can't see anything through the viewfinder, so it all became, in one\nsense of the phrase, <span class='nobr'>a crapshoot.<\/span> <span class='nobr'>The first<\/span> picture of this post is one of\nthose that was taken with an in-the-middle-somewhere aperture, so it's much\nsharper than any of the others.<\/p>\n\n<p>I really wish I had a nice picture to show here, but everything came out\nso muddy that it's not really worth it. <span class='nobr'>I did try<\/span> some pictures of <span class='nobr'>a dead<\/span>\nbug. They were gross.<\/p>\n\n<p>In the <a href=\"\/blog\/2007-10-16\/609\"\nclass='quiet'>reverse-lens-basics post<\/a> <span class='nobr'>I showed<\/span> this picture that\nhighlights <span class='nobr'>a tiny<\/span> section of <span class='nobr'>a Japanese<\/span> banknote:<\/p>\n\n<div class='ic'><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/JEF_039181-m4.gif\" width=\"690\" height=\"462\"\nid=\"i039181_m4\"\/><\/div>\n\n<p>Photographed at a bit less than 3 &times; magnification, that area looks like this:<\/p>\n\n<div class='ic'><a name='039173' href=\"\/i\/JEF_039173.jpg\"\n><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/JEF_039173_sm.jpg\" width=\"690\" height=\"462\"\nalt=\"Nikon D200 + reversed Sigma 30mm f\/1.4 &amp;mdash; 1 \/ 250 sec, f\/16, ISO 160 &amp;mdash; full exif About 3 &amp;times; Magnification -- Kyoto, Japan -- Copyright 2007 Jeffrey Eric Francis Friedl, https:\/\/regex.info\/blog\/\"\nid=\"i039173\"\nphotostream=\"japan,misc\"\ntitle=\"An extreme closeup of part of a Japanese 2,000-yen banknote\"\/><\/a>\n<br\/><span class=\"robots-nocontent\" style='color:#BBB; font-size:85%'>Nikon D200 + reversed Sigma 30mm f\/1.4 &mdash; <sup>1<\/sup><big>\/<\/big>250 sec, f\/16, ISO 160 &mdash;\n<a class='quiet' style='color:#77B' href=\"\/imageinfo.cgi?url=http%3A%2F%2Fregex.info%2Fi%2FJEF_039173.jpg\">full exif<\/a><\/span>\n<br\/><span style='font-size:175%'><span class='nobr'>About 3<\/span>&times; Magnification<\/span>\n<\/div>\n\n<p>Here's the top of that Chinese character from today's shoot:<\/p>\n\n<div class='ic'><a name='042011' href=\"\/i\/JEF_042011.jpg\"\n><img loading=\"lazy\" decoding=\"async\" src=\"\/i\/JEF_042011_sm.jpg\" width=\"690\" height=\"462\"\nalt=\"Muddy 34.7 &amp;times; Magnification -- Kyoto, Japan -- Copyright 2007 Jeffrey Eric Francis Friedl, https:\/\/regex.info\/blog\/\"\nid=\"i042011\"\ntitle=\"Muddy 34.7 &amp;times; Magnification -- Kyoto, Japan -- Copyright 2007 Jeffrey Eric Francis Friedl, https:\/\/regex.info\/blog\/\"\/><\/a>\n<br\/><span class='caption'><span class='nobr'>Muddy 34.7<\/span> &times; Magnification<\/span>\n<\/div>\n\n<p>I could have probably worked harder to get <span class='nobr'>a clean<\/span> shot here, but with\nthe frustrating macro rail, lack of light to focus, and <span class='nobr'>a temperamental<\/span>\ntoothpick\/aperture situation, <span class='nobr'>I decided<\/span> to call it quits for the\nevening.<\/p>\n\n<p>Thanks to <a href=\"http:\/\/www.kotodama.net\/blog\/\">Zak Braverman<\/a> for\nhaving loaned me the two teleconverters. <span class='nobr'>I would<\/span> have liked to add my own\n<span class='nobr'>Nikon 1.7<\/span>&times; teleconverter, but its mounting ring is designed to\nphysically disallow connection to equipment not specifically intended to\nwork with it. With it, <span class='nobr'>I suppose<\/span> <span class='nobr'>I would<\/span> have gotten magnification of about\n60 &times;, and even more muddiness.<\/p>\n\n<p>If I ever try this again, I'll have to have <span class='nobr'>a very<\/span> bright light for\nfocusing, and, if possible, <span class='nobr'>a wide<\/span>-angle lens with an aperture ring that <span class='nobr'>I\ncan<\/span> use in place of the 17-55 zoom. Much more, and I'll be rivaling <span class='nobr'>a\nfriend<\/span> who runs an electron microscopy laboratory. <img loading=\"lazy\" decoding=\"async\" src=\"\/blog\/wp-includes\/images\/smilies\/icon_smile.gif\" width=\"15\" height=\"15\"\nid=\"ismile\"\nstyle=\"padding:0; margin:0; border:none\"\/><\/p>\n\n<style type=\"text\/css\">\n  #post657 li { margin-top: 9px }\n<\/style>\n\n","protected":false},"excerpt":{"rendered":"<p>A couple of months ago I posted about basics of reverse-lens Macro photography, where I showed some items photographed with some magnification that is considered fairly extreme by macro-photography standards. I threw around \"true but misleading\" big numbers like \"45,000 &times;\" in jest, but in the normal nomenclature of macro photography where magnification is represented by the relative size of the object to its projection on the film or digital sensor, the photographs in that post were just a bit less than 3 &times; magnification. Pretty strong stuff.<\/p> <p>I later posted an example at 5 &times; magnification, making the edge [...]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,7],"tags":[],"_links":{"self":[{"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/posts\/657"}],"collection":[{"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/comments?post=657"}],"version-history":[{"count":0,"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/posts\/657\/revisions"}],"wp:attachment":[{"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/media?parent=657"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/categories?post=657"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/regex.info\/blog\/wp-json\/wp\/v2\/tags?post=657"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}