{"id":1755,"date":"2009-07-23T14:28:55","date_gmt":"2009-07-23T03:28:55","guid":{"rendered":"http:\/\/www.alexwisephotography.net\/blog\/?p=1755"},"modified":"2018-03-05T21:17:57","modified_gmt":"2018-03-05T10:17:57","slug":"neutral-density-reference-chart","status":"publish","type":"post","link":"https:\/\/www.alexwisephotography.net\/blog\/2009\/07\/23\/neutral-density-reference-chart\/","title":{"rendered":"Neutral Density Reference Chart"},"content":{"rendered":"<figure id=\"attachment_5887\" aria-describedby=\"caption-attachment-5887\" style=\"width: 700px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.alexwisephotography.net\/blog\/2009\/07\/31\/mortimer-bay\/\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"5887\" data-permalink=\"https:\/\/www.alexwisephotography.net\/blog\/2009\/07\/23\/neutral-density-reference-chart\/neutral-density-exposure-chart\/\" data-orig-file=\"https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/neutral-density-exposure-chart.jpg\" data-orig-size=\"700,467\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"neutral density exposure chart\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/neutral-density-exposure-chart.jpg\" class=\"size-full wp-image-5887\" src=\"https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/neutral-density-exposure-chart.jpg\" alt=\"neutral density exposure chart\" width=\"700\" height=\"467\" srcset=\"https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/neutral-density-exposure-chart.jpg 700w, https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/neutral-density-exposure-chart-416x278.jpg 416w, https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/neutral-density-exposure-chart-300x200.jpg 300w, https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/neutral-density-exposure-chart-324x216.jpg 324w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><figcaption id=\"caption-attachment-5887\" class=\"wp-caption-text\">One of my favourite long exposure photographs taken at Mortimer Bay, Tasmania<\/figcaption><\/figure>\n<p><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"5885\" data-permalink=\"https:\/\/www.alexwisephotography.net\/blog\/2009\/07\/23\/neutral-density-reference-chart\/neutral-density-reference-chart-2\/\" data-orig-file=\"https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/neutral-density-reference-chart.jpg\" data-orig-size=\"800,638\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"neutral density reference chart\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/neutral-density-reference-chart.jpg\" class=\"size-medium wp-image-5885 alignright\" src=\"https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/neutral-density-reference-chart-300x239.jpg\" alt=\"neutral density reference chart\" width=\"300\" height=\"239\" srcset=\"https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/neutral-density-reference-chart-300x239.jpg 300w, https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/neutral-density-reference-chart-768x612.jpg 768w, https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/neutral-density-reference-chart-416x332.jpg 416w, https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/neutral-density-reference-chart.jpg 800w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>\n<p>A common question I receive from people is about how long they should set the shutter speed when using strong neutral density filters such as the <a href=\"https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/2kCEzE5\">10 stop B+W 110 filter<\/a>&nbsp;or <a href=\"https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/2jymeKA\">NiSi Long Exposure Kit<\/a>. &nbsp;It&#8217;s a hard question to answer and I often point them to a chart (see end of post).<\/p>\n<p>Rather than point you to a pdf file all the time I thought it would be more useful to point the information into a WordPress table to act as a quick reference for long exposure photography.<\/p>\n<h3>My Step by Step Process for Long Exposure Photography<\/h3>\n<p>I must be honest and tell you I&#8217;ve never used the chart and prefer to photograph a scene based on general feel for the scene. Over time you&#8217;ll learn how different conditions will need certain settings. For example the early stages of a sunrise (when it&#8217;s still dark) or the late stages of a sunset (when light is quickly fading) will require a significant exposure with the 10 stop attached. I&#8217;ll generally shoot around the 10 minute mark at F9 with a 100ISO. But if shooting during the sunset when there is more light available I&#8217;ll shoot more around F13 with a 2-5 minute exposure at 50ISO. &nbsp;If on the&nbsp;other hand&nbsp;you&#8217;re shooting day time long exposure photographs around noon, I&#8217;ll crank the F stop to around 20-22, lower the ISO to 50 and shoot a test shot around the 1 minute mark and adjust accordingly. But to rehash these are my rules of thumb when shooting with the B+W 110 10 stop neutral density filter:<\/p>\n<ul>\n<li><strong>Early stage of a sunrise or late part of a sunset (when there is limited light available) &#8211;<\/strong>&nbsp;10 minutes, F9~ with a 100-200 ISO (never any higher &nbsp;due to a higher ISO increasing noise)<\/li>\n<li><strong>During sunset or sunrise when there is plenty of light available &#8211;<\/strong> 2-5 minutes, F13~ with a 50ISO<\/li>\n<li><strong>Day time light conditions (this can vary based on the scene being overcast or sunny) &#8211;&nbsp;<\/strong>1~ minute, F20~ with a 50ISO<\/li>\n<\/ul>\n<p>It&#8217;s not the most calculated way of doing things by any means but it&#8217;s a method that has worked well for me. &nbsp;My best advice would be to play around in these scenes (early stages of a sunset, late stage of a sunset and day time) noting the settings for each scene and use these as a guide for when shooting scenes. It will mean less stuffing around when you arrive at a scene which is important when shooting a sunset and great light is&nbsp;disappearing&nbsp;quickly.<\/p>\n<h3>More Long Exposure Guides on this Blog<\/h3>\n<p>If you&#8217;re starting out in long exposure photography you might want to have a read over my free guide that looks at taking super long exposures (even during the daytime) that includes a <a href=\"https:\/\/www.alexwisephotography.net\/blog\/2010\/02\/16\/guide-to-daytime-long-exposures\/\">guide on long exposures<\/a> with before and after photographs and some equipment I recommend. &nbsp;Also my <a href=\"https:\/\/www.alexwisephotography.net\/blog\/2011\/11\/16\/how-to-photograph-waterfalls-tutorial\/\">waterfall photography guide<\/a> also explores long exposures with the effect which long exposures can have when photographing waterfalls.<\/p>\n<p>If you still have any questions after reading these articles please feel free to <a href=\"https:\/\/www.alexwisephotography.net\/blog\/contact\/\">email me<\/a> and I&#8217;ll be happy to help.<\/p>\n<h3>Free Neutral Density Exposure Chart<\/h3>\n<p><a href=\"https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/long-exposure-calculator.jpg\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"5886\" data-permalink=\"https:\/\/www.alexwisephotography.net\/blog\/2009\/07\/23\/neutral-density-reference-chart\/long-exposure-calculator\/\" data-orig-file=\"https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/long-exposure-calculator.jpg\" data-orig-size=\"799,532\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"long exposure calculator\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/long-exposure-calculator.jpg\" class=\"alignleft size-medium wp-image-5886\" src=\"https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/long-exposure-calculator-300x199.jpg\" alt=\"long exposure calculator\" width=\"300\" height=\"199\"\/><\/a>If you want a copy of this neutral density exposure chart to carry in your camera bag,&nbsp;&nbsp;attached is a&nbsp;PDF form that helps calculate long exposures with different neutral density filters. This will make a nice addition to any camera bag especially if you&#8217;re playing around with new filters.<\/p>\n<p><a href=\"https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/BKS_ND_Chart.pdf\">Click (PDF 187kb)<\/a><\/p>\n\n<table id=\"tablepress-3\" class=\"tablepress tablepress-id-3\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Bare Meter Reading =<\/th><th class=\"column-2\">1\/8000<\/th><th class=\"column-3\">1\/4000<\/th><th class=\"column-4\">1\/2000<\/th><th class=\"column-5\">1\/1000<\/th><th class=\"column-6\">1\/500<\/th><th class=\"column-7\">1\/250<\/th><th class=\"column-8\">1\/125<\/th><th class=\"column-9\">1\/60<\/th><th class=\"column-10\">1\/30<\/th><th class=\"column-11\">1\/15<\/th><th class=\"column-12\">1\/8<\/th><th class=\"column-13\">1\/4<\/th><th class=\"column-14\">1\/2<\/th><th class=\"column-15\">1s<\/th><th class=\"column-16\">2s<\/th><th class=\"column-17\">4s<\/th><th class=\"column-18\">8s<\/th><th class=\"column-19\">15s<\/th><th class=\"column-20\">30s<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">ND2 (1)<\/td><td class=\"column-2\">1\/4000<\/td><td class=\"column-3\">1\/2000<\/td><td class=\"column-4\">1\/1000<\/td><td class=\"column-5\">1\/500<\/td><td class=\"column-6\">1\/250<\/td><td class=\"column-7\">1\/125<\/td><td class=\"column-8\">1\/60<\/td><td class=\"column-9\">1\/30<\/td><td class=\"column-10\">1\/15<\/td><td class=\"column-11\">1\/8<\/td><td class=\"column-12\">1\/4<\/td><td class=\"column-13\">1\/2<\/td><td class=\"column-14\">1s<\/td><td class=\"column-15\">2s<\/td><td class=\"column-16\">4s<\/td><td class=\"column-17\">8s<\/td><td class=\"column-18\">15s<\/td><td class=\"column-19\">30s<\/td><td class=\"column-20\">1m<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">CPL (1 2\/3)*<\/td><td class=\"column-2\">1\/2500<\/td><td class=\"column-3\">1\/1250<\/td><td class=\"column-4\">1\/640<\/td><td class=\"column-5\">1\/320<\/td><td class=\"column-6\">1\/160<\/td><td class=\"column-7\">1\/80<\/td><td class=\"column-8\">1\/40<\/td><td class=\"column-9\">1\/20<\/td><td class=\"column-10\">1\/10<\/td><td class=\"column-11\">1\/5<\/td><td class=\"column-12\">2.5<\/td><td class=\"column-13\">1.3<\/td><td class=\"column-14\">1.6s<\/td><td class=\"column-15\">3s<\/td><td class=\"column-16\">6s<\/td><td class=\"column-17\">13s<\/td><td class=\"column-18\">25s<\/td><td class=\"column-19\">50s<\/td><td class=\"column-20\">1.66m<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">ND4 (2)<\/td><td class=\"column-2\">1\/2000<\/td><td class=\"column-3\">1\/1000<\/td><td class=\"column-4\">1\/500<\/td><td class=\"column-5\">1\/250<\/td><td class=\"column-6\">1\/125<\/td><td class=\"column-7\">1\/60<\/td><td class=\"column-8\">1\/30<\/td><td class=\"column-9\">1\/15<\/td><td class=\"column-10\">1\/8<\/td><td class=\"column-11\">1\/4<\/td><td class=\"column-12\">1\/2<\/td><td class=\"column-13\">1s<\/td><td class=\"column-14\">2s<\/td><td class=\"column-15\">4s<\/td><td class=\"column-16\">8s<\/td><td class=\"column-17\">15s<\/td><td class=\"column-18\">30s<\/td><td class=\"column-19\">1m<\/td><td class=\"column-20\">2m<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">ND8 (3)<\/td><td class=\"column-2\">1\/1000<\/td><td class=\"column-3\">1\/500<\/td><td class=\"column-4\">1\/250<\/td><td class=\"column-5\">1\/125<\/td><td class=\"column-6\">1\/60<\/td><td class=\"column-7\">1\/30<\/td><td class=\"column-8\">1\/15<\/td><td class=\"column-9\">1\/8<\/td><td class=\"column-10\">1\/4<\/td><td class=\"column-11\">1\/2<\/td><td class=\"column-12\">1s<\/td><td class=\"column-13\">2s<\/td><td class=\"column-14\">4s<\/td><td class=\"column-15\">8s<\/td><td class=\"column-16\">15s<\/td><td class=\"column-17\">30s<\/td><td class=\"column-18\">1m<\/td><td class=\"column-19\">2m<\/td><td class=\"column-20\">4m<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">2X ND4 or ND2 + ND3 (4)<\/td><td class=\"column-2\">1\/500<\/td><td class=\"column-3\">1\/250<\/td><td class=\"column-4\">1\/125<\/td><td class=\"column-5\">1\/60<\/td><td class=\"column-6\">1\/30<\/td><td class=\"column-7\">1\/15<\/td><td class=\"column-8\">1\/8<\/td><td class=\"column-9\">1\/4<\/td><td class=\"column-10\">1\/2<\/td><td class=\"column-11\">1s<\/td><td class=\"column-12\">2s<\/td><td class=\"column-13\">4s<\/td><td class=\"column-14\">8s<\/td><td class=\"column-15\">15s<\/td><td class=\"column-16\">30s<\/td><td class=\"column-17\">1m<\/td><td class=\"column-18\">2m<\/td><td class=\"column-19\">4m<\/td><td class=\"column-20\">8m<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">(5)<\/td><td class=\"column-2\">1\/250<\/td><td class=\"column-3\">1\/125<\/td><td class=\"column-4\">1\/60<\/td><td class=\"column-5\">1\/30<\/td><td class=\"column-6\">1\/15<\/td><td class=\"column-7\">1\/8<\/td><td class=\"column-8\">1\/4<\/td><td class=\"column-9\">1\/2<\/td><td class=\"column-10\">1s<\/td><td class=\"column-11\">2s<\/td><td class=\"column-12\">4s<\/td><td class=\"column-13\">8s<\/td><td class=\"column-14\">15s<\/td><td class=\"column-15\">30s<\/td><td class=\"column-16\">1m<\/td><td class=\"column-17\">2m<\/td><td class=\"column-18\">4m<\/td><td class=\"column-19\">8m<\/td><td class=\"column-20\">16m<\/td>\n<\/tr>\n<tr class=\"row-8\">\n\t<td class=\"column-1\">2X ND8 or ND64 (6)<\/td><td class=\"column-2\">1\/125<\/td><td class=\"column-3\">1\/60<\/td><td class=\"column-4\">1\/30<\/td><td class=\"column-5\">1\/15<\/td><td class=\"column-6\">1\/8<\/td><td class=\"column-7\">1\/4<\/td><td class=\"column-8\">1\/2<\/td><td class=\"column-9\">1s<\/td><td class=\"column-10\">2s<\/td><td class=\"column-11\">4s<\/td><td class=\"column-12\">8s<\/td><td class=\"column-13\">15s<\/td><td class=\"column-14\">30s<\/td><td class=\"column-15\">1m<\/td><td class=\"column-16\">2m<\/td><td class=\"column-17\">4m<\/td><td class=\"column-18\">8m<\/td><td class=\"column-19\">16m<\/td><td class=\"column-20\">32m<\/td>\n<\/tr>\n<tr class=\"row-9\">\n\t<td class=\"column-1\">ND100 (6 2\/3)<\/td><td class=\"column-2\">1\/80<\/td><td class=\"column-3\">1\/40<\/td><td class=\"column-4\">1\/20<\/td><td class=\"column-5\">1\/10<\/td><td class=\"column-6\">1\/5<\/td><td class=\"column-7\">2.5<\/td><td class=\"column-8\">1.3<\/td><td class=\"column-9\">1.6s<\/td><td class=\"column-10\">3s<\/td><td class=\"column-11\">6s<\/td><td class=\"column-12\">13s<\/td><td class=\"column-13\">25s<\/td><td class=\"column-14\">50s<\/td><td class=\"column-15\">1m 40s<\/td><td class=\"column-16\">3m 20s<\/td><td class=\"column-17\">6m 40s<\/td><td class=\"column-18\">13m 20s<\/td><td class=\"column-19\">26m 40s<\/td><td class=\"column-20\">53m 20s<\/td>\n<\/tr>\n<tr class=\"row-10\">\n\t<td class=\"column-1\">(7)<\/td><td class=\"column-2\">1\/60<\/td><td class=\"column-3\">1\/30<\/td><td class=\"column-4\">1\/15<\/td><td class=\"column-5\">1\/8<\/td><td class=\"column-6\">1\/4<\/td><td class=\"column-7\">1\/2<\/td><td class=\"column-8\">1s<\/td><td class=\"column-9\">2s<\/td><td class=\"column-10\">4s<\/td><td class=\"column-11\">8s<\/td><td class=\"column-12\">15s<\/td><td class=\"column-13\">30s<\/td><td class=\"column-14\">1m<\/td><td class=\"column-15\">2m<\/td><td class=\"column-16\">4m<\/td><td class=\"column-17\">8m<\/td><td class=\"column-18\">16m<\/td><td class=\"column-19\">32m<\/td><td class=\"column-20\">64m<\/td>\n<\/tr>\n<tr class=\"row-11\">\n\t<td class=\"column-1\">ND4 + ND64 (8)<\/td><td class=\"column-2\">1\/30<\/td><td class=\"column-3\">1\/8<\/td><td class=\"column-4\">1\/8<\/td><td class=\"column-5\">1\/4<\/td><td class=\"column-6\">1\/2<\/td><td class=\"column-7\">1s<\/td><td class=\"column-8\">2s<\/td><td class=\"column-9\">4s<\/td><td class=\"column-10\">8s<\/td><td class=\"column-11\">15s<\/td><td class=\"column-12\">30s<\/td><td class=\"column-13\">1m<\/td><td class=\"column-14\">2m<\/td><td class=\"column-15\">4m<\/td><td class=\"column-16\">8m<\/td><td class=\"column-17\">16m<\/td><td class=\"column-18\">32m<\/td><td class=\"column-19\">64m<\/td><td class=\"column-20\">128m<\/td>\n<\/tr>\n<tr class=\"row-12\">\n\t<td class=\"column-1\">ND400 (8 2\/3)<\/td><td class=\"column-2\">1\/40<\/td><td class=\"column-3\">1\/20<\/td><td class=\"column-4\">1\/10<\/td><td class=\"column-5\">1\/2.5<\/td><td class=\"column-6\">1\/1.3<\/td><td class=\"column-7\">1.6s<\/td><td class=\"column-8\">3s<\/td><td class=\"column-9\">6s<\/td><td class=\"column-10\">13s<\/td><td class=\"column-11\">25s<\/td><td class=\"column-12\">50s<\/td><td class=\"column-13\">1m 40s<\/td><td class=\"column-14\">3m 20s<\/td><td class=\"column-15\">6m 40s<\/td><td class=\"column-16\">13m 20s<\/td><td class=\"column-17\">26m 40s<\/td><td class=\"column-18\">53m 20s<\/td><td class=\"column-19\">1 hr 47m<\/td><td class=\"column-20\">3h 33m<\/td>\n<\/tr>\n<tr class=\"row-13\">\n\t<td class=\"column-1\">(9)<\/td><td class=\"column-2\">1\/15<\/td><td class=\"column-3\">1\/8<\/td><td class=\"column-4\">1\/4<\/td><td class=\"column-5\">1\/2<\/td><td class=\"column-6\">1s<\/td><td class=\"column-7\">2s<\/td><td class=\"column-8\">4s<\/td><td class=\"column-9\">8s<\/td><td class=\"column-10\">15s<\/td><td class=\"column-11\">30s<\/td><td class=\"column-12\">1m<\/td><td class=\"column-13\">2m<\/td><td class=\"column-14\">4m<\/td><td class=\"column-15\">8m<\/td><td class=\"column-16\">16m<\/td><td class=\"column-17\">32m<\/td><td class=\"column-18\">1h 4m<\/td><td class=\"column-19\">2h 8m<\/td><td class=\"column-20\">4h 16m<\/td>\n<\/tr>\n<tr class=\"row-14\">\n\t<td class=\"column-1\">(10)<\/td><td class=\"column-2\">1\/8<\/td><td class=\"column-3\">1\/4<\/td><td class=\"column-4\">1\/2<\/td><td class=\"column-5\">1s<\/td><td class=\"column-6\">2s<\/td><td class=\"column-7\">4s<\/td><td class=\"column-8\">8s<\/td><td class=\"column-9\">15s<\/td><td class=\"column-10\">30s<\/td><td class=\"column-11\">1m<\/td><td class=\"column-12\">2m<\/td><td class=\"column-13\">4m<\/td><td class=\"column-14\">8m<\/td><td class=\"column-15\">16m<\/td><td class=\"column-16\">32m<\/td><td class=\"column-17\">1h 4m<\/td><td class=\"column-18\">2h 8m<\/td><td class=\"column-19\">4h 16m<\/td><td class=\"column-20\">8h 32m<\/td>\n<\/tr>\n<tr class=\"row-15\">\n\t<td class=\"column-1\">(11)<\/td><td class=\"column-2\">1\/4<\/td><td class=\"column-3\">1\/2<\/td><td class=\"column-4\">1s<\/td><td class=\"column-5\">2s<\/td><td class=\"column-6\">4s<\/td><td class=\"column-7\">8s<\/td><td class=\"column-8\">15s<\/td><td class=\"column-9\">30s<\/td><td class=\"column-10\">1m<\/td><td class=\"column-11\">2m<\/td><td class=\"column-12\">4m<\/td><td class=\"column-13\">8m<\/td><td class=\"column-14\">16m<\/td><td class=\"column-15\">32m<\/td><td class=\"column-16\">1h 4m<\/td><td class=\"column-17\">2h 8m<\/td><td class=\"column-18\">4h 16m<\/td><td class=\"column-19\">8h 32m<\/td><td class=\"column-20\">17h 4m<\/td>\n<\/tr>\n<tr class=\"row-16\">\n\t<td class=\"column-1\">2X ND64 (12)<\/td><td class=\"column-2\">1\/2<\/td><td class=\"column-3\">1s<\/td><td class=\"column-4\">2s<\/td><td class=\"column-5\">4s<\/td><td class=\"column-6\">8s<\/td><td class=\"column-7\">15s<\/td><td class=\"column-8\">30s<\/td><td class=\"column-9\">1m<\/td><td class=\"column-10\">2m<\/td><td class=\"column-11\">4m<\/td><td class=\"column-12\">8m<\/td><td class=\"column-13\">16m<\/td><td class=\"column-14\">32m<\/td><td class=\"column-15\">1h 4m<\/td><td class=\"column-16\">2h 8m<\/td><td class=\"column-17\">4h 16m<\/td><td class=\"column-18\">8h 32m<\/td><td class=\"column-19\">17h 4m<\/td><td class=\"column-20\">1d 10h 8m<\/td>\n<\/tr>\n<tr class=\"row-17\">\n\t<td class=\"column-1\">ND10000 (13)<\/td><td class=\"column-2\">1s<\/td><td class=\"column-3\">2s<\/td><td class=\"column-4\">4s<\/td><td class=\"column-5\">8s<\/td><td class=\"column-6\">15s<\/td><td class=\"column-7\">30s<\/td><td class=\"column-8\">1m<\/td><td class=\"column-9\">2m<\/td><td class=\"column-10\">4m<\/td><td class=\"column-11\">8m<\/td><td class=\"column-12\">16m<\/td><td class=\"column-13\">32m<\/td><td class=\"column-14\">1h 4m<\/td><td class=\"column-15\">2h 8m<\/td><td class=\"column-16\">4h 16m<\/td><td class=\"column-17\">8h 32m<\/td><td class=\"column-18\">17h 4m<\/td><td class=\"column-19\">1d 10h 8m<\/td><td class=\"column-20\">2d 20h 16m<\/td>\n<\/tr>\n<tr class=\"row-18\">\n\t<td class=\"column-1\">(14)<\/td><td class=\"column-2\">2s<\/td><td class=\"column-3\">4s<\/td><td class=\"column-4\">8s<\/td><td class=\"column-5\">15s<\/td><td class=\"column-6\">30s<\/td><td class=\"column-7\">1m<\/td><td class=\"column-8\">2m<\/td><td class=\"column-9\">4m<\/td><td class=\"column-10\">8m<\/td><td class=\"column-11\">16m<\/td><td class=\"column-12\">32m<\/td><td class=\"column-13\">1h 4m<\/td><td class=\"column-14\">2h 8m<\/td><td class=\"column-15\">4h 16m<\/td><td class=\"column-16\">8h 32m<\/td><td class=\"column-17\">17h 4m<\/td><td class=\"column-18\">1d 10h 8m<\/td><td class=\"column-19\">2d 20h 16m<\/td><td class=\"column-20\">5d 16h 32m<\/td>\n<\/tr>\n<tr class=\"row-19\">\n\t<td class=\"column-1\">(15)<\/td><td class=\"column-2\">4s<\/td><td class=\"column-3\">8s<\/td><td class=\"column-4\">15s<\/td><td class=\"column-5\">30s<\/td><td class=\"column-6\">1m<\/td><td class=\"column-7\">2m<\/td><td class=\"column-8\">4m<\/td><td class=\"column-9\">8m<\/td><td class=\"column-10\">16m<\/td><td class=\"column-11\">32m<\/td><td class=\"column-12\">1h 4m<\/td><td class=\"column-13\">2h 8m<\/td><td class=\"column-14\">4h 16m<\/td><td class=\"column-15\">8h 32m<\/td><td class=\"column-16\">17h 4m<\/td><td class=\"column-17\">1d 10h 8m<\/td><td class=\"column-18\">2d 20h 16m<\/td><td class=\"column-19\">5d 16h 32m<\/td><td class=\"column-20\">11d 9h 4m<\/td>\n<\/tr>\n<tr class=\"row-20\">\n\t<td class=\"column-1\">(16)<\/td><td class=\"column-2\">8s<\/td><td class=\"column-3\">15s<\/td><td class=\"column-4\">30s<\/td><td class=\"column-5\">1m<\/td><td class=\"column-6\">2m<\/td><td class=\"column-7\">4m<\/td><td class=\"column-8\">8m<\/td><td class=\"column-9\">16m<\/td><td class=\"column-10\">32m<\/td><td class=\"column-11\">1h 4m<\/td><td class=\"column-12\">2h 8m<\/td><td class=\"column-13\">4h 16m<\/td><td class=\"column-14\">8h 32m<\/td><td class=\"column-15\">17h 4m<\/td><td class=\"column-16\">1d 10h 8m<\/td><td class=\"column-17\">2d 20h 16m<\/td><td class=\"column-18\">5d 16h 32m<\/td><td class=\"column-19\">11d 9h 4m<\/td><td class=\"column-20\">22d 18h 8m<\/td>\n<\/tr>\n<tr class=\"row-21\">\n\t<td class=\"column-1\">(17)<\/td><td class=\"column-2\">15s<\/td><td class=\"column-3\">30s<\/td><td class=\"column-4\">1m<\/td><td class=\"column-5\">2m<\/td><td class=\"column-6\">4m<\/td><td class=\"column-7\">8m<\/td><td class=\"column-8\">16m<\/td><td class=\"column-9\">32m<\/td><td class=\"column-10\">1h 4m<\/td><td class=\"column-11\">2h 8m<\/td><td class=\"column-12\">4h 16m<\/td><td class=\"column-13\">8h 32m<\/td><td class=\"column-14\">17h 4m<\/td><td class=\"column-15\">1d 10h 8m<\/td><td class=\"column-16\">2d 20h 16m<\/td><td class=\"column-17\">5d 16h 32m<\/td><td class=\"column-18\">11d 9h 4m<\/td><td class=\"column-19\">22d 18h 8m<\/td><td class=\"column-20\">45d12h16m<\/td>\n<\/tr>\n<tr class=\"row-22\">\n\t<td class=\"column-1\">(18)<\/td><td class=\"column-2\">30s<\/td><td class=\"column-3\">1m<\/td><td class=\"column-4\">2m<\/td><td class=\"column-5\">4m<\/td><td class=\"column-6\">8m<\/td><td class=\"column-7\">16m<\/td><td class=\"column-8\">32m<\/td><td class=\"column-9\">1h 4m<\/td><td class=\"column-10\">2h 8m<\/td><td class=\"column-11\">4h 16m<\/td><td class=\"column-12\">8h 32m<\/td><td class=\"column-13\">17h 4m<\/td><td class=\"column-14\">1d 10h 8m<\/td><td class=\"column-15\">2d 20h 16m<\/td><td class=\"column-16\">5d 16h 32m<\/td><td class=\"column-17\">11d 9h 4m<\/td><td class=\"column-18\">22d 18h 8m<\/td><td class=\"column-19\">45d12h16m<\/td><td class=\"column-20\">91d 32m<\/td>\n<\/tr>\n<tr class=\"row-23\">\n\t<td class=\"column-1\">(19)<\/td><td class=\"column-2\">1m<\/td><td class=\"column-3\">2m<\/td><td class=\"column-4\">4m<\/td><td class=\"column-5\">8m<\/td><td class=\"column-6\">16m<\/td><td class=\"column-7\">32m<\/td><td class=\"column-8\">1h 4m<\/td><td class=\"column-9\">2h 8m<\/td><td class=\"column-10\">4h 16m<\/td><td class=\"column-11\">8h 32m<\/td><td class=\"column-12\">17h 4m<\/td><td class=\"column-13\">1d 10h 8m<\/td><td class=\"column-14\">2d 20h 16m<\/td><td class=\"column-15\">5d 16h 32m<\/td><td class=\"column-16\">11d 9h 4m<\/td><td class=\"column-17\">22d 18h 8m<\/td><td class=\"column-18\">45d12h16m<\/td><td class=\"column-19\">91d 32m<\/td><td class=\"column-20\">182d 1h 4m<\/td>\n<\/tr>\n<tr class=\"row-24\">\n\t<td class=\"column-1\">ND1000000 (20)<\/td><td class=\"column-2\">2m<\/td><td class=\"column-3\">4m<\/td><td class=\"column-4\">8m<\/td><td class=\"column-5\">16m<\/td><td class=\"column-6\">32m<\/td><td class=\"column-7\">1h 4m<\/td><td class=\"column-8\">2h 8m<\/td><td class=\"column-9\">4h 16m<\/td><td class=\"column-10\">8h 32m<\/td><td class=\"column-11\">17h 4m<\/td><td class=\"column-12\">1d 10h 8m<\/td><td class=\"column-13\">2d 20h 16m<\/td><td class=\"column-14\">5d 16h 32m<\/td><td class=\"column-15\">11d 9h 4m<\/td><td class=\"column-16\">22d 18h 8m<\/td><td class=\"column-17\">45d12h16m<\/td><td class=\"column-18\">91d 32m<\/td><td class=\"column-19\">182d 1h 4m<\/td><td class=\"column-20\">1 year<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-3 from cache -->\n<p><script src=\"https:\/\/www.alexwisephotography.net\/blog\/wp-content\/uploads\/2009\/07\/onejs?MarketPlace=US&amp;adInstanceId=90567b22-ef32-4a84-abe6-c4fa8d256bb6&amp;storeId=alexwisephot-20\"><\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A common question I receive from people is about how long they should set the shutter speed when using strong neutral density filters such as the 10 stop B+W 110 filter&nbsp;or NiSi Long Exposure Kit. &nbsp;It&#8217;s a hard question to answer and I often point them to a chart (see end of post). Rather than [&hellip;]<\/p>\n","protected":false},"author":16,"featured_media":5885,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false,"_links_to":"","_links_to_target":""},"categories":[3],"tags":[1114,496,495,422,1106,211],"class_list":["post-1755","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technique","tag-alex-wise","tag-best-kept-secret-photography","tag-calculations","tag-filter","tag-long-exposure","tag-neutral-density"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- 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