{"id":27010,"date":"2015-07-13T06:30:25","date_gmt":"2015-07-13T10:30:25","guid":{"rendered":"http:\/\/www.birdsasart-blog.com\/?p=27010"},"modified":"2015-07-13T12:45:46","modified_gmt":"2015-07-13T16:45:46","slug":"graphic-depth-of-field-lesson-100-400-ii-versatility","status":"publish","type":"post","link":"https:\/\/www.birdsasart-blog.com\/baa\/2015\/07\/13\/graphic-depth-of-field-lesson-100-400-ii-versatility\/","title":{"rendered":"Graphic Depth-of-field Lesson &#038; 100-400 II Versatility"},"content":{"rendered":"<h3>What&#8217;s Up?<\/h3>\n<p>I flew to Guayaquil with friend and participant Chris Billman.  We are both beat after a long day of travel.  I meet the group tomorrow at 10:00am for an orientation meeting and introductory slide program.  <\/p>\n<p>Beginning on Tuesday I will be leading a BIRDS AS ART Instructional Photo-Cruise in the Galapagos archipelago. It will be a first ever with two days spent at the two best sites, Hood Island and Tower Island.  <\/p>\n<p>I will not have internet access until late in the day on July 29 so please refrain from e-mailing me at the traditional samandmayasgrandpa@att.net address until very late July.  For mail order or other help please contact Jim by phone M-F at 863-692-0906 or via <a href=\"mailto:staffbaa@att.net\">e-mail<\/a> at the staffbaa address.  To register for an IPT please contact Jennifer by phone during weekday banker&#8217;s hours at 863-692-0906 or via <a href=\"mailto:birdsasart@verizon.net\">e-mail<\/a> to our Verizon address with ATTN: JEN in the subject line. AS a side note, my right hand man Jim Litzenberg can help you with just about anything BIRDSASART. <\/p>\n<h3><strong>Please Help Support My Work on the BAA Blog<\/strong>   <\/h3>\n<h2><strong>Thanks a Stack! June was a Great Month. <\/strong><\/h2>\n<p>The last six weeks as a B&#038;H affiliate have been quite rewarding.  Thanks a stack to the many who used our B&#038;H links for purchases large and small.  Right now I am working closely with my B&#038;H rep to have four 400 DO and two 100-400 II BAA Affiliate orders expedited.  It has been nearly impossible to come by a 400 DO II.  I am hoping that my efforts pay dividends fairly soon&#8230;.  100-400IIs are now in stock at B&#038;H.  The 400 DO II lenses continue to be in very short supply.  The sooner you order, the sooner you will get yours; I am working closely with my contact at B&#038;H to have the current orders expedited when a shipment does actually arrive. <\/p>\n<p>To show your appreciation for my efforts here, we ask, as always, that you use our the B&#038;H and Amazon affiliate links on the right side of the blog for all of your purchases. B&#038;H Is recommended for you major photography gear purchases, Amazon for your household, entertainment, and general purpose stuff.  Please check the availability of all photographic accessories in the <a href=\"https:\/\/store.birdsasart.com\/shop\/default.aspx\">BIRDS AS ART Online Store<\/a>, especially Gitzo tripods, Wimberley tripod heads, and the like. We sell only what I have used, have tested, and can depend on.  We will not sell you junk.  We know what you need to make creating great images easy and fun. And we are always glad to answer your gear questions via <a href=\"mailto:samandmayasgrandpa@att.net\">e-mail<\/a>.<\/p>\n<p>I would of course appreciate your using our B&#038;H affiliate links for all of your major gear, video, and electronic purchases. For the photographic stuff mentioned in the paragraph above <font color=red><strong>we, meaning BAA,<\/strong><\/font> would of course greatly appreciate your business.  Here is a huge thank you to the many who have been using our links on a regular basis and visiting the <a href=\"https:\/\/store.birdsasart.com\/shop\/default.aspx\">BAA Online<\/a> store as well.<\/p>\n<h3>Selling Your Used Photo Gear Through BIRDS AS ART<\/h3>\n<p>Selling your used (or like-new) photo gear through the BAA Blog or via a BAA Online Bulletin is a great idea. We charge only a 5% commission. One of the more popular used gear for sale sites charges a minimum of 20%. Plus assorted fees! Yikes. The minimum item price here is $500 (or less for a $25 fee).  If you are interested please <a href=\"mailto:samandmayasgrandpa@att.net\">e-mail<\/a><\/center> with the words Items for Sale Info Request cut and pasted into the Subject line :). Stuff that is priced fairly&#8211;I offer free pricing advice, usually sells in no time flat.  In the past few weeks we have sold nearly everything in sight. Do know that prices on some items like the EOS-1D Mark IV, the old Canon 500mm, the EOS-7D, and the original 400mm IS DO lens have been dropping steadily. You can see the complete listings <a href=\"https:\/\/www.birdsasart-blog.com\/baa\/used-photography-gear-for-sale\/\">here<\/a>. <\/p>\n<table>\n<tr>\n<td>\n<p><a href=\"https:\/\/www.birdsasart-blog.com\/baa\/wp-content\/gallery\/general\/brownpelican-resting-a_y5o8654-la-jolla-ca.jpg\" class='shutterset'><br \/>\n<img decoding=\"async\" class=\"ngg-singlepic ngg-center\" src=\"https:\/\/www.birdsasart-blog.com\/baa\/wp-content\/gallery\/general\/brownpelican-resting-a_y5o8654-la-jolla-ca.jpg\" alt=\"brownpelican-resting-a_y5o8654-la-jolla-ca\" title=\"brownpelican-resting-a_y5o8654-la-jolla-ca\" width=800 \/><\/a>  <\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>This image was created on the San Diego IPT just moments before the image below with the hand held <a href=\"http:\/\/www.bhphotovideo.com\/c\/product\/1092632-REG\/canon_9524b002_ef_100_400mm_f_4_5_5_6l_is.html\/BI\/6633\/KBID\/7226\/kw\/CA1004002LIS\/DFF\/d10-v2-t1-xCA1004002LIS\" target=\"_blank\">Canon EF 100-400mm f\/4.5-5.6L IS II USM lens<\/a>, the <a href=\"http:\/\/www.bhphotovideo.com\/c\/product\/732113-USA\/Canon_4409B002_Extender_EF_1_4X_III.html\/BI\/6633\/KBID\/7226\/kw\/CA14XEF3\/DFF\/d10-v2-t1-xCA14XEF3\" target=\"_blank\">Canon Extender EF 1.4X III<\/a> (at 560mm), and the amazing <a href=\"http:\/\/www.bhphotovideo.com\/c\/product\/1081808-REG\/canon_9128b002_eos_7d_mark_ii.html\/BI\/6633\/KBID\/7226\/kw\/CAE7D2\/DFF\/d10-v2-t1-xCAE7D2\" target=\"_blank\">Canon EOS 7D Mark II<\/a>. ISO 400.  Evaluative metering -1\/3 stop: 1\/800 sec. at f\/10.  <\/p>\n<p>Distance to the subject: about 12 feet. <\/p>\n<p>Center AF point (by necessity)\/AI Servo Expand\/Rear Focus AF on the pelican&#8217;s eye and re-compose.  With my left forearm resting on a rock wall for stability.  Click <a href=\"https:\/\/www.birdsasart-blog.com\/baa\/2013\/10\/31\/if-this-doesnt-get-the-point-across-nothing-will\/\">here<\/a> to see the latest version of the Rear Focus Tutorial.  Click on the image to see a larger version. <\/p>\n<h2><strong>Image #1: Tight Sleeping Brown Pelican <\/strong><\/h2>\n<p><iframe loading=\"lazy\" width=\"728\" scrolling=\"no\" height=\"90\" frameborder=\"0\" style=\"border:none;\" border=\"0\" src=\"http:\/\/mer54715.datafeedfile.com\/widget\/aff_widget_prdt_generate-2.0.php?aff_num=7226&#038;aff_net=1&#038;size=728x90&#038;mode=m&#038;bucket_num=6380&#038;link_target=y&#038;sid=\" marginheight=\"0\" marginwidth=\"0\"><\/p>\n<p>Your browser does not support iFrame.<\/p>\n<p><\/iframe><\/p>\n<\/td>\n<\/tr>\n<\/table>\n<h3>100-400 II Versatility<\/h3>\n<p>That the same lens with the 1.4X III TC made both of today&#8217;s images from pretty much the same position demonstrates the amazing versatility of the 100-400 II.  It truly is an astounding tool. <\/p>\n<h3>Graphic Depth-of-field Question&#8230;<\/h3>\n<p>Before you scroll down to the answer below.  Try the following: In image #1, the aperture is f\/11.  In image #2, the aperture is f\/10. For all intents and purposes, the apertures are the same.  How is it possible that the ocean in Image #1 is totally out of focus&#8211;a pleasing blue blur, but that the equally distant waves image #2 are fairly sharply defined?  <\/p>\n<table>\n<tr>\n<td>\n<p><a href=\"https:\/\/www.birdsasart-blog.com\/baa\/wp-content\/gallery\/general\/brown-pelicans-one-sleeping-one-scratching-_y5o8658-la-jolla-ca.jpg\" class='shutterset'><br \/>\n<img decoding=\"async\" class=\"ngg-singlepic ngg-center\" src=\"https:\/\/www.birdsasart-blog.com\/baa\/wp-content\/gallery\/general\/brown-pelicans-one-sleeping-one-scratching-_y5o8658-la-jolla-ca.jpg\" alt=\"brown-pelicans-one-sleeping-one-scratching-_y5o8658-la-jolla-ca\" title=\"brown-pelicans-one-sleeping-one-scratching-_y5o8658-la-jolla-ca\" width=800 \/><\/a>  <\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>This image was also created on the San Diego IPT with the hand held <a href=\"http:\/\/www.bhphotovideo.com\/c\/product\/1092632-REG\/canon_9524b002_ef_100_400mm_f_4_5_5_6l_is.html\/BI\/6633\/KBID\/7226\/kw\/CA1004002LIS\/DFF\/d10-v2-t1-xCA1004002LIS\" target=\"_blank\">Canon EF 100-400mm f\/4.5-5.6L IS II USM lens<\/a>, the <a href=\"http:\/\/www.bhphotovideo.com\/c\/product\/732113-USA\/Canon_4409B002_Extender_EF_1_4X_III.html\/BI\/6633\/KBID\/7226\/kw\/CA14XEF3\/DFF\/d10-v2-t1-xCA14XEF3\" target=\"_blank\">Canon Extender EF 1.4X III<\/a> (at 214mm), and the amazing <a href=\"http:\/\/www.bhphotovideo.com\/c\/product\/1081808-REG\/canon_9128b002_eos_7d_mark_ii.html\/BI\/6633\/KBID\/7226\/kw\/CAE7D2\/DFF\/d10-v2-t1-xCAE7D2\" target=\"_blank\">Canon EOS 7D Mark II<\/a>. ISO 400.  Evaluative metering at zero: 1\/400 sec. at f\/11. <\/p>\n<p>Distance to the subject: about 12 feet.  <\/p>\n<p>Center AF point (by necessity)\/AI Servo Expand\/Rear Focus AF on the pelican&#8217;s eye and re-compose.  With my left forearm resting on a rock wall for stability.  Click <a href=\"https:\/\/www.birdsasart-blog.com\/baa\/2013\/10\/31\/if-this-doesnt-get-the-point-across-nothing-will\/\">here<\/a> to see the latest version of the Rear Focus Tutorial.  Click on the image to see a larger version.  <\/p>\n<h2><strong>Image #2: Brown Pelicans: One Sleeping, One Scratching<\/strong><\/h2>\n<p><iframe loading=\"lazy\" width=\"728\" scrolling=\"no\" height=\"90\" frameborder=\"0\" style=\"border:none;\" border=\"0\" src=\"http:\/\/mer54715.datafeedfile.com\/widget\/aff_widget_prdt_generate-2.0.php?aff_num=7226&#038;aff_net=1&#038;size=728x90&#038;mode=m&#038;bucket_num=6380&#038;link_target=y&#038;sid=\" marginheight=\"0\" marginwidth=\"0\"><\/p>\n<p>Your browser does not support iFrame.<\/p>\n<p><\/iframe><\/p>\n<\/td>\n<\/tr>\n<\/table>\n<h3>Graphic Depth-of-field Answer and Lesson<\/h3>\n<p>With both images, I was about 12 feet from the subject.  The only important difference in the EXIF data between Image #1 and Image # 2 is the focal length. A visit to <a href=\"http:\/\/www.dofmaster.com\/dofjs.html\">Depth-of-Field Master.com<\/a> revealed the explanation: <\/p>\n<p>Depth-of-field with a 7D II at 12 feet with a focal length of 215mm at f\/11 is roughly .38 feet, roughly 4 1\/2 inches. (Note: I originally posted 34 feet in error.)<br \/>\nDepth-of-field with a 7D II at 12 feet with a focal length of 560mm at f\/10 is roughly 1\/2 inch. <\/p>\n<p>Thus, the shorter the focal length at a given aperture and a given distance the greater the depth of field.  Some might like to think of it like this: when you go to a shorter focal length you are effectively moving away from the subject, thus the huge increase in depth-of-field. In any case, note how much more the background was brought up in the second image as compared to the first image. <\/p>\n<table>\n<tr>\n<td>\n<p><a href=\"https:\/\/www.birdsasart-blog.com\/baa\/wp-content\/gallery\/general\/san-diego-card-neesie.jpg\" class='shutterset'><br \/>\n<img decoding=\"async\" class=\"ngg-singlepic ngg-center\" src=\"https:\/\/www.birdsasart-blog.com\/baa\/wp-content\/gallery\/general\/san-diego-card-neesie.jpg\" alt=\"san-diego-card-neesie\" title=\"san-diego-card-neesie\" width=800 \/><\/a>  <\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>San Diego offers a wealth of very attractive natural history subjects.  With annual visits spanning more than three decades I have lot of experience there&#8230;. <\/p>\n<\/td>\n<\/tr>\n<\/table>\n<h3>2015 San Diego 4 1\/2-DAY BIRDS AS ART Instructional Photo-Tour (IPT) JAN 8 thru the morning of JAN 12, 2016: $1899 (Limit: 10)<\/h3>\n<h2><strong>Meet and Greet at 7:00pm on the day before the IPT begins<br \/>\nTwo great leaders: Arthur Morris and Denise Ippolito<\/strong><\/h2>\n<p>Join us in San Diego to photograph the spectacular breeding plumage Brown Pelicans with their fire-engine red and olive green bill pouches; Brandt&#8217;s and Double-crested Cormorants in breeding plumage with their amazing crests; breeding plumage Wood and Ring-necked Duck; other species possible including Lesser Scaup, Redhead, and Surf Scoter; a variety of gulls including Western, California, and the gorgeous Heerman&#8217;s, all in full breeding plumage; shorebirds including Marbled Godwit, Willet, Sanderling and Black-bellied Plover; many others possible including Least, Western, and Spotted Sandpiper, Whimbrel, Black and Ruddy Turnstone, Semipalmated Plover, and Surfbird; Harbor Seals (depending on the current regulations) and California Sea Lions likely; and Bird of Paradise flowers. And as you can see by studying the two IPT cards there are some nice landscape opportunities as well. <\/p>\n<p>Did I mention that there are wealth of great birds and natural history subjects in San Diego in winter? <\/p>\n<p>This IPT will include five 3 1\/2 hour morning photo sessions, four 2 1\/2 hour afternoon photo sessions, five lunches, after-lunch image review and Photoshop sessions, and a thank you dinner. To ensure early starts, breakfasts will be your responsibility. <\/p>\n<p>A $499 non-refundable deposit is required to hold your slot for this IPT. You can send a check (made out to &#8220;Arthur Morris) to us at BIRDS AS ART, PO Box 7245, Indian Lake Estates, FL, 33855.  Or call Jim or Jennifer at the office with a credit card at 863-692-0906. Your balance, payable only by check, will be due on 11\/1\/\/2015. If we do not receive your check for the balance on or before the due date we will try to fill your spot from the waiting list. Please print, complete, and sign the form that is linked to <a href=\"https:\/\/www.birdsasart-blog.com\/baa\/ipt-registration-and-release-forms\/\">here<\/a> and shoot it to us along with your deposit check.  If you register by phone, please print, complete and sign the form as noted above and either mail it to us or e-mail the scan.  If you have any questions, please feel free to contact me via <a href=\"mailto:samandmayasgrandpa@att.net\">e-mail<\/a><\/center>. <\/p>\n<table>\n<tr>\n<td>\n<p><a href=\"https:\/\/www.birdsasart-blog.com\/baa\/wp-content\/gallery\/general\/san-diego-card-b.jpg\" class='thickbox'><br \/>\n<img decoding=\"async\" class=\"ngg-singlepic ngg-center\" src=\"https:\/\/www.birdsasart-blog.com\/baa\/wp-content\/gallery\/general\/san-diego-card-b.jpg\" alt=\"san-diego-card-b\" title=\"san-diego-card-b\" width=800 \/><\/a>  <\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>Though the pelicans will be the stars of the show on this IPT there will be many other handsome and captivating subjects in wonderful settings. <\/p>\n<\/td>\n<\/tr>\n<\/table>\n<h3>Facebook<\/h3>\n<p>Be sure to like and follow BAA on Facebook by clicking on the logo link upper right.  Tanks a stack!<\/p>\n<h3><strong>Support the BAA Blog. Support the BAA Bulletins: Shop B&#038;H here!<\/strong><\/h3>\n<p>We want and need to keep providing you with the latest free information, photography and Photoshop lessons, and all manner of related information. Show your appreciation by making your purchases immediately after clicking on any of our B&#038;H or Amazon Affiliate links in this blog post.  Remember, B&#038;H ain&#8217;t just photography!<\/p>\n<p>    <center> <strong>&#8230;..<\/strong><\/center><\/p>\n<p><iframe loading=\"lazy\" width=\"825\" height=\"400\" src=\"http:\/\/www.bhphotovideo.com\/images\/affiliateimages\/BirdsAsArt\/index.html\" frameborder=\"0\" scrolling=\"no\" style=\"margin-left:-10px; margin-top:-10px;\"><\/iframe><\/p>\n<h3>Amazon.com<\/h3>\n<p>Those who prefer to support BAA by shopping with Amazon may use this link: <\/p>\n<p><center><iframe loading=\"lazy\" src=\"http:\/\/rcm-na.amazon-adsystem.com\/e\/cm?t=arthurmorrisb-20&#038;o=1&#038;p=9&#038;l=ur1&#038;category=amazonhomepage&#038;f=ifr&#038;linkID=JIBVXBCFKIBE72GU\" width=\"180\" height=\"150\" scrolling=\"no\" border=\"0\" marginwidth=\"0\" style=\"border:none;\" frameborder=\"0\"><\/iframe><\/center><\/p>\n<h3>Amazon Canada<\/h3>\n<p>Many kind folks from north of the border, eh, have e-mailed stating that they would love to help us out by using one of our affiliate links but that living in Canada and doing so presents numerous problems.  Now, they can help us out by using our Amazon Canada affiliate link by starting their searches by clicking <a href=\"http:\/\/amazon.ca\/?_encoding=UTF8&#038;camp=15121&#038;creative=330641&#038;linkCode=ur2&#038;tag=amb07-20\">here<\/a>.   Many thanks to those who have written.  <\/p>\n<h3>Typos<\/h3>\n<p>In all blog posts and Bulletins, feel free to <a href=\"mailto:samandmayasgrandpa@att.net\">e-mail<\/a><\/center> or to leave a comment regarding any typos or errors.  Just be right :). <\/p>\n","protected":false},"excerpt":{"rendered":"<p>What&#8217;s Up? <\/p>\n<p>I flew to Guayaquil with friend and participant Chris Billman. We are both beat after a long day of travel. I meet the group tomorrow at 10:00am for an orientation meeting and introductory slide program. <\/p>\n<p>Beginning on Tuesday I will be leading a BIRDS AS ART Instructional Photo-Cruise in the Galapagos archipelago. [&#8230;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[590],"tags":[],"class_list":["post-27010","post","type-post","status-publish","format-standard","hentry","category-590","odd"],"_links":{"self":[{"href":"https:\/\/www.birdsasart-blog.com\/baa\/wp-json\/wp\/v2\/posts\/27010","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.birdsasart-blog.com\/baa\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.birdsasart-blog.com\/baa\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.birdsasart-blog.com\/baa\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.birdsasart-blog.com\/baa\/wp-json\/wp\/v2\/comments?post=27010"}],"version-history":[{"count":0,"href":"https:\/\/www.birdsasart-blog.com\/baa\/wp-json\/wp\/v2\/posts\/27010\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.birdsasart-blog.com\/baa\/wp-json\/wp\/v2\/media?parent=27010"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.birdsasart-blog.com\/baa\/wp-json\/wp\/v2\/categories?post=27010"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.birdsasart-blog.com\/baa\/wp-json\/wp\/v2\/tags?post=27010"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}