{"id":99,"date":"2025-06-11T18:56:50","date_gmt":"2025-06-11T16:56:50","guid":{"rendered":"https:\/\/www.lucavascon.net\/blog\/?page_id=99"},"modified":"2025-08-06T21:40:09","modified_gmt":"2025-08-06T19:40:09","slug":"ddt45_howto","status":"publish","type":"page","link":"https:\/\/www.lucavascon.net\/blog\/ddt45_howto\/","title":{"rendered":"DDT45_howto:"},"content":{"rendered":"\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/08\/WEB_DDTanika45_r2025-01.pdf\" type=\"application\/pdf\" style=\"width:100%;height:626px\" aria-label=\"Incorporamento di WEB_DDTanika45_r2025-01.\"><\/object><a id=\"wp-block-file--media-68958bf1-07ba-4023-a203-4277d5a9580a\" href=\"https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/08\/WEB_DDTanika45_r2025-01.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">WEB_DDTanika45_r2025-01<\/a><a href=\"https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/08\/WEB_DDTanika45_r2025-01.pdf\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-68958bf1-07ba-4023-a203-4277d5a9580a\">Download<\/a><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">DDTanika45 is a Daylight Developing Tank for 4&#215;5&#8243; film. Needs 350ml chemicals for 6x 4&#215;5&#8243; film sheets<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Page1: DISCLAIMER|<\/li>\n\n\n\n<li>Page2: PART LIST<\/li>\n\n\n\n<li>Page3: USAGE<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>THANK YOU FOR YOUR SUPPORT<\/strong>!<br><br>This developer is a craft item, not an industrial product. I conceived and made it at first just to satisfy a personal need. The idea of building them for others as well comes from a desire to simplify and make the joy and fun of large format more accessible to new enthusiasts. The one you have in your hand is printed in house and assembled by me to order, with its little scratches and flaws. I water test them one by one, and with a test film check the frames. At the basis of the project there have been function tests, by myself and other collaborating friends, but certainly not complete nor exhaustive, although it is still used as frequently as possible, and the project has been updated by making minor improvements, sometimes incorporating user suggestions. Therefore, it should be considered a functional prototype that is continually growing and evolving, not a finished shelf item. So please let me know your impressions of use, and if you encounter any difficulties or have any suggestions, let us know.<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>PLEASE READ!<\/strong><\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\"><strong>It is not a toy.<\/strong><br>There are small parts that can cause choking and there may be sharp edges. Keep out of the reach of children.<br><br><strong>Sealing of liquids<\/strong><br>CAUTION: the tank has a decent seal but is not watertight, if you squeeze it hard, or turn it upside down, a few drops can always come out. Always operate over a sink, or container.<br><br><strong>Resistance to chemicals:<\/strong><br>Normally development reagents are mild acids and bases. Materials of construction are PET for the frames, PETG for the rest of the tank, and TPU for the closure belt; gaskets are silicone. When in doubt, check the performance of the materials.<\/p>\n\n\n\n<p class=\"has-text-align-left wp-block-paragraph\"><strong>Maintenance<\/strong><br>Due to their conformation, the tank and lid need to be washed thoroughly after each use, in running water or by immersion, reaching the recesses and light traps.<br>NEVER expose the tank to heat sources, or prolonged exposure to direct sunlight, air dry in a cool, dry place.<\/p>\n\n\n\n<!--nextpage-->\n\n\n\n<h2 class=\"wp-block-heading\"><strong>The <\/strong>developing tank <strong>elements:<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"912\" height=\"1024\" src=\"https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/explodedview-912x1024.jpg\" alt=\"\" class=\"wp-image-140\" srcset=\"https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/explodedview-912x1024.jpg 912w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/explodedview-267x300.jpg 267w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/explodedview-768x863.jpg 768w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/explodedview-508x571.jpg 508w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/explodedview.jpg 1200w\" sizes=\"auto, (max-width: 912px) 100vw, 912px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The tank (1)<br><\/strong>Has a closing strap<strong> (5)<\/strong> and buckle <strong>(4)<\/strong>, contains the main light trap, which is also the fluid circulation system. The tank is printed in one piece and cannot be opened for maintenance and cleaning.<br><br><strong>The Lid (2)<br><\/strong>The lid contains the air vent that allows rapid loading and unloading of the tank, equipped with its small light trap. Again it is printed in one piece. Silicone gasket 90 x 2.4, replacement supplied.<br><br><strong>A Cap (3)<br><\/strong>The screw cap is made to size, the silicone gasket(diam 35mm x thickness 2mm) is inserted during the printing process (no user replacement).<br><br><strong>The three frames (12)<\/strong><br>Check them carefully for any damage or sharp edges so l that nothing can scratch the film. They are interlocking assembled and tested to slip into place without any friction.<br>They are available for 4&#215;5&#8243; and 9&#215;12 cm format<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Accessories<\/strong>:<br><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Bydet (6)<\/strong><br>Bypass-detersion system.<br>Replaces the lid for a film wash directly in the tank:<br>It distributes the water better by running it parallel to the films and has a funnel-shaped mouthpiece that aids in-sink washing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>M-buto(11)<\/strong><br>This&nbsp; specially&nbsp; shaped funnel allows the air line to be left clear during loading. It screws onto the lid with only two turns, starting with the open end facing forward toward the liquid inlet. Nothing strictly necessary, but convenient.<\/p>\n\n\n\n<!--nextpage-->\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Usage:&nbsp;<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"10 luglio 2025\" width=\"600\" height=\"338\" src=\"https:\/\/www.youtube.com\/embed\/AplHszwpWk4?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<figure class=\"wp-block-pullquote has-white-color has-accent-background-color has-text-color has-background has-link-color wp-elements-1\"><blockquote><p><br><strong><em>It is recommended to try the film insertion procedure first, in the light and with a scrap film, and to try the tank with water to get the hang of it!<\/em>&nbsp;<\/strong><\/p><\/blockquote><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">IN THE LIGHT<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><br><strong>Prepare in the changing bag or darkroom:<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>The tank<\/li>\n\n\n\n<li>The lid, separate but with the cap screwed on<\/li>\n\n\n\n<li>The three loose frames<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>IN TOTAL DARKNESS<\/strong><br><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Insert the films:&nbsp;<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You can load them onto the frames in at least two ways, but ALWAYS by keeping the emulsion facing away from the frame:<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"690\" src=\"https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/FILM_insA-1024x690.jpg\" alt=\"\" class=\"wp-image-141\" srcset=\"https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/FILM_insA-1024x690.jpg 1024w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/FILM_insA-300x202.jpg 300w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/FILM_insA-768x518.jpg 768w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/FILM_insA-508x342.jpg 508w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/FILM_insA.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>&nbsp;by sliding the film from the top and then sliding it under the bottom tab and pushing it under the top tab<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"596\" src=\"https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/FILM_insB-1024x596.jpg\" alt=\"\" class=\"wp-image-142\" srcset=\"https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/FILM_insB-1024x596.jpg 1024w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/FILM_insB-300x175.jpg 300w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/FILM_insB-768x447.jpg 768w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/FILM_insB-508x295.jpg 508w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/FILM_insB.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li>&nbsp;by bending the film to insert first one side edge, then the other, slide it under the bottom tab and push it under the top one&nbsp;<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Each frame can hold two films; if you develop less than six, try to distribute them evenly among several frames<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Each time you fill a frame, slide it into place in the tank.<br>I recommend keeping the tank horizontal and loading it starting from the bottom.<br><br>It may happen that you stick the second frame &#8220;sideways,&#8221; but you will notice it immediately by touch.<\/p>\n\n\n\n<p class=\"has-accent-background-color has-background wp-block-paragraph\"><strong>ALWAYS put ALL FRAMES IN THE TANK,<\/strong> even if they are empty. However small their volume affects the minimum volume of chemistry required, their absence could result in uneven film development.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Check everything by feel, slip the lid on the tank, pushing it in well, making sure you have left no films out.<br>You can remove everything from the changing bag or turn on the light.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><br><br><strong>IN THE LIGHT<\/strong>, AGAIN<\/h2>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"10 luglio 2025\" width=\"600\" height=\"338\" src=\"https:\/\/www.youtube.com\/embed\/tTP2Dfq-e34?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><br>Take the tank, open the latch latch by turning it upward and holding it in place slip the lace under the latch, pulling well but not too hard. Keep the lace taut as you lower the latch.<br>Now the tank is tight, just enough for flipping and movement during development.<\/p>\n\n\n\n<p class=\"has-accent-background-color has-background wp-block-paragraph\"><strong>CAUTION<\/strong> the tank is  watertight but not completely sealed; if you wring it out or turn it upside down, a few drops will always come out. Operate on the sink or over a container.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><br><br><strong>Load development chemicals.<\/strong><br>Consider 350cc of liquid the minimum needed (and the recommended value) to get to cover the entire film (about 4-5mm above the top edge). 380cc is the maximum the tank can hold, before you get to the lid and air vent.<br>It means that with Rodinal 1:50 there are 7cc of Rodinal and water up to 350.<br><br>Liquids can be poured easily into the wide part of the cap opening <strong>(7)<\/strong>, being careful not to pour them into the air duct <strong>(8) <\/strong>or occlude it. A funnel is generally not necessary but you can screw on the included one!<br><br>Keep the development lid on for shutdown flushing, filling and emptying the tank with clean water.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"592\" src=\"https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/top-numbered-1024x592.jpg\" alt=\"\" class=\"wp-image-144\" srcset=\"https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/top-numbered-1024x592.jpg 1024w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/top-numbered-300x174.jpg 300w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/top-numbered-768x444.jpg 768w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/top-numbered-508x294.jpg 508w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/top-numbered.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Emptying the tank<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Empty the tank in a smooth, firm motion, always keeping it straight and not turning it flat.<br>The air line opens inside the tank lid on the opposite side from the cap, and it should be held up.<br>With a minimum of practice outlet will allow you to pour with a fast, continuous and regular flow, to recover development or fixing without even having to use a funnel.<br><br><strong>Washing the film<\/strong><br>Replace the lid with the red washing lid (BYDET) <strong>(6)<\/strong>, no need to stop it with the lace.  For thorough washing, place the tank in the sink and let a moderate, steady flow of water into the funnel-shaped mouthpiece <strong>(8)<\/strong>. After passing through the front grid system and washing the film, it will drain out by overflowing through the appropriate openings <strong>(10)<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"488\" src=\"https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/bydetionaction-1024x488.jpg\" alt=\"\" class=\"wp-image-145\" srcset=\"https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/bydetionaction-1024x488.jpg 1024w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/bydetionaction-300x143.jpg 300w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/bydetionaction-768x366.jpg 768w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/bydetionaction-508x242.jpg 508w, https:\/\/www.lucavascon.net\/blog\/wp-content\/uploads\/2025\/07\/bydetionaction.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><br><br><a href=\"about:blank\">https:\/\/www.lucavascon.net\/blog\/ddtanika45\/<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><sup><strong>Credits:&nbsp;<\/strong>Remarcle font on the tank is by Tup Wanders.<br>Thanks to Marc Anthony Cherubin for the first inspiration and encouragement in this project. To Samuele Piccoli for believing in it, to Alice Martignon for the support, Jeff Starley for all the checks. To all the beta-testers for their time (you know who you are! \ud83d\ude09<\/sup><\/p>\n","protected":false},"excerpt":{"rendered":"<p>DDTanika45 is a Daylight Developing Tank for 4&#215;5&#8243; film. Needs 350ml chemicals for 6x 4&#215;5&#8243; film sheets THANK YOU FOR YOUR SUPPORT! This developer is a craft item, not an industrial product. I conceived and made it at first just to satisfy a personal need. The idea of building them for others as well comes [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-99","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.lucavascon.net\/blog\/wp-json\/wp\/v2\/pages\/99","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lucavascon.net\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.lucavascon.net\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.lucavascon.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lucavascon.net\/blog\/wp-json\/wp\/v2\/comments?post=99"}],"version-history":[{"count":8,"href":"https:\/\/www.lucavascon.net\/blog\/wp-json\/wp\/v2\/pages\/99\/revisions"}],"predecessor-version":[{"id":170,"href":"https:\/\/www.lucavascon.net\/blog\/wp-json\/wp\/v2\/pages\/99\/revisions\/170"}],"wp:attachment":[{"href":"https:\/\/www.lucavascon.net\/blog\/wp-json\/wp\/v2\/media?parent=99"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}