{"id":1687,"date":"2019-04-30T20:06:00","date_gmt":"2019-04-30T18:06:00","guid":{"rendered":"https:\/\/www.juliuskramer.de\/trailmaster-tm1550ps-the-best-light-barrier-for-nature-photographers\/"},"modified":"2025-06-03T11:37:43","modified_gmt":"2025-06-03T09:37:43","slug":"trailmaster-tm1550ps-the-best-light-barrier-for-nature-photographers","status":"publish","type":"post","link":"https:\/\/www.juliuskramer.de\/en\/trailmaster-tm1550ps-the-best-light-barrier-for-nature-photographers\/","title":{"rendered":"Trailmaster TM1550PS &#8211; the best light barrier for nature photographers!"},"content":{"rendered":"\n<p>When working with camera traps in nature photography, you need reliable and solid equipment. The Trailmaster TM1550 PS light barrier is just right for this and makes light barrier photography a lot of fun! My experience.  <\/p>\n\n<figure data-wp-context=\"{&quot;imageId&quot;:&quot;69f831bb6befd&quot;}\" data-wp-interactive=\"core\/image\" data-wp-key=\"69f831bb6befd\" class=\"wp-block-image alignleft size-full is-resized wp-lightbox-container\"><img decoding=\"async\" width=\"900\" height=\"1117\" data-wp-class--hide=\"state.isContentHidden\" data-wp-class--show=\"state.isContentVisible\" data-wp-init=\"callbacks.setButtonStyles\" data-wp-on--click=\"actions.showLightbox\" data-wp-on--load=\"callbacks.setButtonStyles\" data-wp-on-window--resize=\"callbacks.setButtonStyles\" src=\"http:\/\/juliuskramer.de\/wp-content\/uploads\/2025\/04\/trailmaster-1550ps_L.jpg\" alt=\"\" class=\"wp-image-511\" style=\"width:350px\" title=\"Trailmaster Receiver\" srcset=\"https:\/\/www.juliuskramer.de\/wp-content\/uploads\/2025\/04\/trailmaster-1550ps_L.jpg 900w, https:\/\/www.juliuskramer.de\/wp-content\/uploads\/2025\/04\/trailmaster-1550ps_L-483x600.jpg 483w, https:\/\/www.juliuskramer.de\/wp-content\/uploads\/2025\/04\/trailmaster-1550ps_L-768x953.jpg 768w, https:\/\/www.juliuskramer.de\/wp-content\/uploads\/2025\/04\/trailmaster-1550ps_L-480x596.jpg 480w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><button\n\t\t\tclass=\"lightbox-trigger\"\n\t\t\ttype=\"button\"\n\t\t\taria-haspopup=\"dialog\"\n\t\t\taria-label=\"Enlarge\"\n\t\t\tdata-wp-init=\"callbacks.initTriggerButton\"\n\t\t\tdata-wp-on--click=\"actions.showLightbox\"\n\t\t\tdata-wp-style--right=\"state.imageButtonRight\"\n\t\t\tdata-wp-style--top=\"state.imageButtonTop\"\n\t\t>\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"12\" height=\"12\" fill=\"none\" viewBox=\"0 0 12 12\">\n\t\t\t\t<path fill=\"#fff\" d=\"M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z\" \/>\n\t\t\t<\/svg>\n\t\t<\/button><figcaption class=\"wp-element-caption\">Trailmaster receiver with display for menu presentation<\/figcaption><\/figure>\n\n<p>Shortly after I started camera trap photography as a supplement to conventional nature photography (with telephoto, macro and wide angle) and had given up making my own light barriers, I ordered two Trailmaster TM1550 PS Infrared Trail Monitors directly from the manufacturer in the USA. Light barriers are sometimes necessary if you want to photograph an animal in one spot or if you have shy subjects where it's all about the one photo - then motion detectors are not the right tool.   <br\/>You can find out more about choosing the right sensor here: Sensors for DSLR camera traps<\/p>\n\n<p>Back to the Trailmaster: This trigger is a light barrier in which a pulsed infrared beam from a transmitter hits a receiver in the receiver. If the beam is interrupted, the camera is triggered. It's actually quite simple: imagine a string between the two modules and the camera triggers as soon as an animal breaks the string.  <\/p>\n\n<p>It is a good idea to position the beam approximately at the animal's head height so that the camera releases the shutter exactly when the head is in focus. This does not always work - but sometimes it does. It becomes dangerous when the legs trigger the shutter: as we know, the hind legs are further back than the front legs - and when the hind legs trigger the shutter, the head is already much too close to the camera.  <\/p>\n\n<p>The sensitivity can be adjusted, so you can be sure that the camera is not triggered by falling fall leaves. Fortunately, the Trailmaster is too insensitive for rain or snow anyway - quite unlike the eltima Jokie, for example, which I only use as a travel light barrier. <\/p>\n\n<p>With the Trailmaster, you can place the transmitter and receiver about 12m apart so that it works reliably. I have tried this and can confirm it. It makes sense, if at all possible, not to point the receiver to the east or west, where the low sun could shine directly into the receiver. This can sometimes lead to false triggering.   <\/p>\n\n<p>The camera is connected to the Trailmaster via a 3.5mm jack cable. I soldered this myself and adapted it to a 2.5mm jack socket to make it compatible with my standard. The camera's trigger cable then goes into the 2.5mm jack socket.  <\/p>\n\n<p>I am completely impressed by the battery life of the light barrier: more than 6 months is quite possible. Really a brilliant performance! <\/p>\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"900\" height=\"599\" src=\"http:\/\/juliuskramer.de\/wp-content\/uploads\/2025\/04\/20151101-DSC_5217_L.jpg\" alt=\"Trailmaster on Location\" class=\"wp-image-512\" title=\"Trailmaster on Location\" srcset=\"https:\/\/www.juliuskramer.de\/wp-content\/uploads\/2025\/04\/20151101-DSC_5217_L.jpg 900w, https:\/\/www.juliuskramer.de\/wp-content\/uploads\/2025\/04\/20151101-DSC_5217_L-600x399.jpg 600w, https:\/\/www.juliuskramer.de\/wp-content\/uploads\/2025\/04\/20151101-DSC_5217_L-768x511.jpg 768w, https:\/\/www.juliuskramer.de\/wp-content\/uploads\/2025\/04\/20151101-DSC_5217_L-480x319.jpg 480w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><figcaption class=\"wp-element-caption\">Trailmaster on Location<\/figcaption><\/figure>\n\n<p>The tool also proves to be particularly resistant to wind and weather: snowed in for several months was no problem. Thawed, dried, works. You wish you had tools like this more often in photography, don't you?  <\/p>\n<span class=\"et_bloom_bottom_trigger\"><\/span>","protected":false},"excerpt":{"rendered":"<p>The Trailmaster TM1550PS is a robust photoelectric sensor for nature photographers. With precise infrared technology, long battery life and weather resistance, it enables reliable triggering in wildlife photography. In this article, I share my experiences and give tips for effective use in the field.  <\/p>\n","protected":false},"author":1,"featured_media":1495,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[415,412],"tags":[],"class_list":["post-1687","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-camera-traps","category-equipment"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Trailmaster TM1550PS - The reliable photoelectric sensor for camera traps Julius Kramer Naturfotografie<\/title>\n<meta name=\"description\" content=\"Discover the Trailmaster TM1550PS photoelectric sensor: Precise triggering, weatherproof &amp; ideal for camera traps in nature photography.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.juliuskramer.de\/en\/trailmaster-tm1550ps-the-best-light-barrier-for-nature-photographers\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Trailmaster TM1550PS - The reliable photoelectric sensor for camera traps Julius Kramer Naturfotografie\" \/>\n<meta property=\"og:description\" content=\"Discover the Trailmaster TM1550PS photoelectric sensor: Precise triggering, weatherproof &amp; ideal for camera traps in nature photography.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.juliuskramer.de\/en\/trailmaster-tm1550ps-the-best-light-barrier-for-nature-photographers\/\" \/>\n<meta property=\"og:site_name\" content=\"Julius Kramer Naturfotografie\" \/>\n<meta property=\"article:published_time\" content=\"2019-04-30T18:06:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-03T09:37:43+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.juliuskramer.de\/wp-content\/uploads\/2025\/04\/trailmaster-tm-1550-ps_XL.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"900\" \/>\n\t<meta property=\"og:image:height\" content=\"599\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Julius Kramer\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Julius Kramer\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.juliuskramer.de\\\/en\\\/trailmaster-tm1550ps-the-best-light-barrier-for-nature-photographers\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.juliuskramer.de\\\/en\\\/trailmaster-tm1550ps-the-best-light-barrier-for-nature-photographers\\\/\"},\"author\":{\"name\":\"Julius Kramer\",\"@id\":\"https:\\\/\\\/www.juliuskramer.de\\\/en\\\/#\\\/schema\\\/person\\\/ba6a710289277af687ce08cf24aec780\"},\"headline\":\"Trailmaster TM1550PS &#8211; 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