{"id":119,"date":"2005-05-02T00:20:00","date_gmt":"2005-05-02T00:20:00","guid":{"rendered":"http:\/\/perezmedia.net\/beltofvenus\/2005\/05\/02\/sketching_tutor_1\/"},"modified":"2021-11-27T20:02:10","modified_gmt":"2021-11-27T20:02:10","slug":"sketching_tutor_1","status":"publish","type":"post","link":"https:\/\/perezmedia.net\/beltofvenus\/2005\/05\/02\/sketching_tutor_1\/","title":{"rendered":"Sketching Tutorial &#8211; Page 2 of 3"},"content":{"rendered":"<p><script type=\"text\/javascript\"><br \/>\n<!--\n\/\/ copyright 1999 Idocs, Inc. http:\/\/www.idocs.com\/tags\/\n\/\/ Distribute this script freely, but please keep this\n\/\/ notice with the code.\nvar rollOverArr=new Array();\nfunction setrollover(OverImgSrc,pageImageName)\n{\nif (! document.images)return;\nif (pageImageName == null)\npageImageName = document.images[document.images.length-1].name;\nrollOverArr[pageImageName]=new Object;\nrollOverArr[pageImageName].overImg = new Image;\nrollOverArr[pageImageName].overImg.src=OverImgSrc;\n}\nfunction rollover(pageImageName)\n{\nif (! document.images)return;\nif (! rollOverArr[pageImageName])return;\nif (! rollOverArr[pageImageName].outImg)\n{\nrollOverArr[pageImageName].outImg = new Image;\nrollOverArr[pageImageName].outImg.src = document.images[pageImageName].src;\n}\ndocument.images[pageImageName].src=rollOverArr[pageImageName].overImg.src;\n}\nfunction rollout(pageImageName)\n{\nif (! document.images)return;\nif (! rollOverArr[pageImageName])return;\ndocument.images[pageImageName].src=rollOverArr[pageImageName].outImg.src;\n}\n\/\/--><br \/>\n<\/script><br \/>\n<script language=\"JavaScript\"><br \/>\n<!--\nfunction myVoid() {}\n\/\/--><br \/>\n<\/script><\/p>\n<table width=\"470\" cellpadding-right=\"5\">\n<tbody>\n<tr valign=\"top\">\n<td>\n<a href=\"javascript:myVoid()\" onmouseover=\"rollover('Step05')\" onmouseout=\"rollout('Step05')\"><img decoding=\"async\" src=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2005\/sketch_tutorial\/Step05W.jpg\" name=\"Step05\" alt=\"Step 5\" border=\"1\" color=\"FFFFFF\" align=\"left\" hspace=\"5\"><\/a><br \/>\n<script type=\"text\/javascript\"><br \/>\n<!--\nsetrollover(\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2005\/sketch_tutorial\/Step05R.jpg\");\n\/\/--><br \/>\n<\/script><br \/>\nNext I pick up a blending stump and scrub it in the dark patch to pick up enough graphite to paint in the light object. Before using the blending stump as-is, I&#8217;ll usually test it out somewhere outside the circle to be sure it isn&#8217;t too dark. If it is too dark, I scrub it around a bit in a blank space to get rid of excess graphite.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table width=\"470\" cellpadding-right=\"5\">\n<tbody>\n<tr valign=\"top\">\n<td>\n<a href=\"javascript:myVoid()\" onmouseover=\"rollover('Step06')\" onmouseout=\"rollout('Step06')\"><img decoding=\"async\" src=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2005\/sketch_tutorial\/Step06W.jpg\" name=\"Step06\" alt=\"Step 6\" border=\"1\" color=\"FFFFFF\" align=\"left\" hspace=\"5\"><\/a><br \/>\n<script type=\"text\/javascript\"><br \/>\n<!--\nsetrollover(\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2005\/sketch_tutorial\/Step06R.jpg\");\n\/\/--><br \/>\n<\/script><br \/>\nNow I dim the red light a bit, to better see the fainter objects in the eyepiece, and then lightly swirl them in with the blending stump. I start with as light of pressure as possible, and slowly build it up to an appropriate darkness. Since I&#8217;m trying to depict things as accurately as possible, I pay careful attention to the framework of stars and where the object sits in this framework. As I build up layers of graphite, I also pay attention to which portions of the object are brighter than others, and darken those more, dipping into the dark patch outside the circle when I need to freshen up the stump.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table width=\"470\" cellpadding-right=\"5\">\n<tbody>\n<tr valign=\"top\">\n<td>\n<a href=\"javascript:myVoid()\" onmouseover=\"rollover('Step07')\" onmouseout=\"rollout('Step07')\"><img decoding=\"async\" src=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2005\/sketch_tutorial\/Step07W.jpg\" name=\"Step07\" alt=\"Step 7\" border=\"1\" color=\"FFFFFF\" align=\"left\" hspace=\"5\"><\/a><br \/>\n<script type=\"text\/javascript\"><br \/>\n<!--\nsetrollover(\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2005\/sketch_tutorial\/Step07R.jpg\");\n\/\/--><br \/>\n<\/script><br \/>\nIn some cases, I&#8217;ll find that it&#8217;s beneficial to get the pencil back out and use it to add finer details in the object that the blending stump can&#8217;t handle. For example, the core of M81 was bright and condensed. I wasn&#8217;t able to use the blending stump to indicate it tightly and strongly enough. So I started to lightly swirl it in with the pencil. Since the area had already been lightly covered by the blending stump, the paper didn&#8217;t have as much tooth, so the darkness of the pencil was much easier to restrain. I came back in with the blending stump and softened the penciled-in core just a bit.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table width=\"470\" cellpadding-right=\"5\">\n<tbody>\n<tr valign=\"top\">\n<td>\n<a href=\"javascript:myVoid()\" onmouseover=\"rollover('Step08')\" onmouseout=\"rollout('Step08')\"><img decoding=\"async\" src=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2005\/sketch_tutorial\/Step08W.jpg\" name=\"Step08\" alt=\"Step 8\" border=\"1\" color=\"FFFFFF\" align=\"left\" hspace=\"5\"><\/a><br \/>\n<script type=\"text\/javascript\"><br \/>\n<!--\nsetrollover(\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/images\/2005\/sketch_tutorial\/Step08R.jpg\");\n\/\/--><br \/>\n<\/script><br \/>\nAt this stage, I&#8217;ll turn the red light down a bit more, and spend more time at the eyepiece, looking for more subtle details. Keeping my eyes off the sketch pad for a longer time often helps me to see more. Once I feel I&#8217;ve spotted a difficult detail, I&#8217;ll try to memorize its position, size and shape against the background stars, and it&#8217;s relation to the rest of the extended object. Then I go back to the sketch and lightly indicate it. In this case, I felt I could see a very dim, soft arc northeast of M81. I try to keep it subtle, in keeping with how hard it might have been to see. But because objects in sketches just don&#8217;t flicker in and out of view, these things will often appear a bit more obvious in the sketch than they were in the eyepiece. I don&#8217;t yet know how to deal with this&#8230;unless I start animating my sketches to flicker things in and out. (No.)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>PAGE 2 OF 3<\/p>\n<p><b><a href=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/000386.html\">PREVIOUS PAGE<\/a> | <a href=\"http:\/\/www.perezmedia.net\/beltofvenus\/archives\/000388.html\">NEXT PAGE<\/a><\/b><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sketching Tutorial &#8211; Page 2 of 3<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[39],"tags":[],"class_list":["post-119","post","type-post","status-publish","format-standard","hentry","category-tools-and-techniques"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":16,"url":"https:\/\/perezmedia.net\/beltofvenus\/2004\/08\/01\/astronomical_sk\/","url_meta":{"origin":119,"position":0},"title":"Astronomical Sketching Resources","author":"jperez1690","date":"August 1, 2004","format":false,"excerpt":"Astronomical Sketching Resources","rel":"","context":"In &quot;General&quot;","block_context":{"text":"General","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/general\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":118,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/05\/02\/sketching_tutor_2\/","url_meta":{"origin":119,"position":1},"title":"Sketching Tutorial &#8211; Page 3 of 3","author":"jperez1690","date":"May 2, 2005","format":false,"excerpt":"Sketching Tutorial - Page 3 of 3","rel":"","context":"In &quot;Tools and Techniques&quot;","block_context":{"text":"Tools and Techniques","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/tools-and-techniques\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":260,"url":"https:\/\/perezmedia.net\/beltofvenus\/2006\/08\/17\/double_star_ske_2\/","url_meta":{"origin":119,"position":2},"title":"Double Star Sketching and Digitizing &#8211; Page 4 of 4","author":"jperez1690","date":"August 17, 2006","format":false,"excerpt":"Double Star Sketching and Digitizing - Page 4","rel":"","context":"In &quot;Double Star&quot;","block_context":{"text":"Double Star","link":"https:\/\/perezmedia.net\/beltofvenus\/category\/double-star\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":120,"url":"https:\/\/perezmedia.net\/beltofvenus\/2005\/05\/02\/sketching_tutor\/","url_meta":{"origin":119,"position":3},"title":"Sketching Tutorial &#8211; 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