{"id":16777,"date":"2026-09-18T20:10:46","date_gmt":"2026-09-18T18:10:46","guid":{"rendered":"https:\/\/deep-space-astronomy.ch\/?post_type=product&#038;p=16777"},"modified":"2026-10-31T08:50:21","modified_gmt":"2026-10-31T07:50:21","slug":"tele-vue-plossl-55-mm","status":"publish","type":"product","link":"https:\/\/deep-space-astronomy.ch\/en\/product\/tele-vue-plossl-55-mm\/","title":{"rendered":"Tele Vue Pl\u00f6ssl 55 mm \u2013 50\u00b0 Eyepiece"},"content":{"rendered":"<div class=\"product\"><div class=\"product\"><h3>55 mm Pl\u00f6ssl Telescope: Key Points<\/h3>\n<p>The <strong>55 mm Pl\u00f6ssl Telescope<\/strong> is a 55-mm astronomical eyepiece offering an apparent field of <strong>50\u00b0<\/strong>. It mounts on a 2-inch slip-on adapter and has an eye relief of 38 mm. This configuration is worth considering for star fields and extended deep-sky objects, depending on your telescope's focal length.<\/p>\n<h3>What is this model best suited for?<\/h3>\n<p>The Pl\u00f6ssl formula provides a way to design a range of magnifications without seeking an extreme apparent field of view. Pay particular attention to the eye relief: it varies with the focal length and determines the position of the eye.<\/p>\n<ul>\n<li>Maximum stated real field of view at the 2-inch outlet; focal plane near the end of the barrel to minimize vignetting.<\/li>\n<li>Requires additional outward focusing travel; Tele Vue recommends the EBX-2120 if the travel is insufficient.<\/li>\n<li>Adjustable and removable ear pads; designed for use with glasses.<\/li>\n<\/ul>\n<h3>Technical specifications<\/h3>\n<table style=\"width:100%;border-collapse:collapse\">\n<tbody>\n<tr>\n<th scope=\"row\">Manufacturer reference<\/th>\n<td>EPL-55.0<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Family<\/th>\n<td>Pl\u00f6ssl<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Focal length<\/th>\n<td>55 mm<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Apparent field<\/th>\n<td>50\u00b0<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Flow<\/th>\n<td>2 inches<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Eye Discharge<\/th>\n<td>38 mm<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Field diaphragm<\/th>\n<td>46 mm<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Weight<\/th>\n<td>1.13 lb \/ 18.1 oz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Frequently asked questions<\/h3>\n<p><strong>What is the magnification with this eyepiece?<\/strong><br \/>With a telescope that has a focal length of 1,000 mm, this eyepiece provides approximately 18\u00d7 magnification. The magnification is calculated by dividing the telescope\u2019s focal length by that of the eyepiece.<\/p>\n<p><strong>Is it compatible with my telescope?<\/strong><br \/>It requires a 2-inch eyepiece holder or a 2-inch right-angle mirror. It cannot be inserted directly into a 1.25-inch mount. Also check that it is securely fastened and properly balanced.<\/p>\n<p><strong>Can you observe things with glasses?<\/strong><br \/>The advertised eye relief is 38 mm. Comfort when wearing eyeglasses also depends on the shape of the glasses and the position of the eye; trying them on is always better than relying on a universal guarantee. The Tele Vue chart indicates DIOPTRX compatibility; this astigmatism corrector is optional.<\/p>\n<p><strong>Is the apparent field the field visible in the sky?<\/strong><br \/>No. The apparent field of view of 50\u00b0 describes the view through the eyepiece. The actual field of view depends on the telescope; the 46-mm field stop is the value to use to calculate it.<\/p>\n<h3>Before Ordering<\/h3>\n<p>Check the focus travel, the focus adjustment range, the maximum weight your setup can support, and the compatibility of filters or correctors. The product offered is a Tele Vue Pl\u00f6ssl 55 mm eyepiece; the accessories listed are optional. The availability shown reflects our supplier\u2019s status at the time of the last check and does not indicate a reserved quantity.<\/p>\n<p>Features and Compatibility: <a href=\"https:\/\/www.televue.com\/engine\/TV3b_page.asp?ID=51&amp;Tab=EP_EPL-55.0\" target=\"_blank\" rel=\"noopener\">Tele Vue EPL-55.0 Official Specifications Sheet<\/a>.<\/p>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Tele Vue Pl\u00f6ssl 55 mm: focal length 55 mm, apparent field of view 50\u00b0, 2-inch barrel, and eye relief 38 mm. Part number EPL-55.0.<\/p>","protected":false},"featured_media":16776,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[629],"product_cat":[695,833,368],"product_tag":[],"class_list":["post-16777","product","type-product","status-publish","has-post-thumbnail","product_brand-televue","product_cat-oculaires-et-smart-oculaires","product_cat-en-stock","product_cat-visuel","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product\/16777","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/comments?post=16777"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media\/16776"}],"wp:attachment":[{"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/media?parent=16777"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_brand?post=16777"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_cat?post=16777"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/deep-space-astronomy.ch\/en\/wp-json\/wp\/v2\/product_tag?post=16777"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}