This means that the coatings will last much longer and they will stay very reflective. If you use the same poles on the same locations you can reasonably maintain collimation when taking down and setting the telescope back up. Solid tube Dobsonians would be much harder to transport, as the rocker box is much larger, and the tube itself is very long. Explore Scientific 10″ truss Dob is our fourth most recommended telescope for someone with a budget between $600 and $800, behind Zhumell Z10, Orion SkyQuest XT8i IntelliScope, and Orion SkyQuest XT10. The ES 10” has a focal length of 1250mm which is f/5 when you consider the 10-inch primary mirror. How can that be? Truss poles are the set of eight poles that form a triangular shape (hence the name truss) and make the telescope extremely rigid – perhaps more rigid than a closed tube telescope. I will answer that here, and also explain why it can be very advantageous. Explore Scientific Product #: DOB1045-00. After you collimate, you are all good to go. In the past telescopes and for that matter almost all commercial Dobsonians were what’s known as a solid tube. Some of the accessories can improve your observing experience greatly, so I will list them here. Then comes collimation of the mirrors. A solid tube telescope is where the tube that holds the mirrors was completely solid, typically metal or in some cases wood. This means that there is no tube at all. How can that be? Add To Cart. The telescope has an optional shroud. The Explore Scientific 10” Truss dob is as the name states a 10-inch Dobsonian. The ES10 begins with laying down the mirror box. Here I will go over the whole process of operation needed to set up this telescope, and the front collimation feature. These factors make truss telescopes extremely portable and lightweight. The truss poles detach from the upper and lower sections of the telescope easily, leaving only the lower and upper tube assemblies, which themselves are very small. The main factor that makes this 10-inch Dobsonian different is that it is a truss telescope. If you have a flexible budget, you may choose to increase your budget and pick the best from our $800 to $1000 telescopes’ category. These fans allow you to cool the mirror quite quickly at night so the views are not compromised by a changing mirror shape. The rocker box in a truss telescope is the part that contains the bearings to move the telescope up, down, left and right, and it is what the telescope sits on. The ES 10” is a very portable and lightweight telescope thanks to the truss-style construction, while still being able to handle heavy eyepieces and accessories. Now selling Explore Scientific's 10-inch Dobsonian. Share: Recommended Accessories . The Dobsonian telescope design was created by John Dobson for an affordable way to get big aperture in an easy to use telescope design. This means that there is no tube at all. The best feature that the truss design brings about is the extremely lightweight and portable telescope. Logan Nicholson is an amateur astronomer from Melbourne and won young astrophotographer of the year runner up in 2018, which got him featured on Cnet, BBC, MNN, NationalGeographic, and DailyMail. The focuser includes a dual-speed know which allows you to focus more finely. The mirror box is typically very short as it does not do much more than hold the mirror in and collimate the mirror. Explore Scientific Dobsonians are built on high quality mirrors with smart design features that makes them surprisingly portable. Without motorized tracking, it was only possible to stack a few hundred frames.Objects: moon, ISS, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune and Open cluster NGC 4755.Neste vídeo mostro os melhores resultados que consegui obter com um telescópio dobsoniano de 254 mm. A 10-inch dob is on the verge of a “large” Dobsonian, as it will reveal some of the darker objects like faint galaxies under dark skies but may not show them in great detail. The truss poles attach to the top of the mirror box. This means that the primary mirror has a diameter of 250mm or 10 inches. This means that the primary mirror has a diameter of 250mm or 10 inches. The red dot finder included projects a simple red dot onto a glass screen, which you look through and center the target you wish to view in the red dot. A solid tube telescope is where the tube that holds the mirrors was completely solid, typically metal or in some cases wood. The Explore Scientific 10 inch dob, while being a truss-style telescope is still a Newtonian reflector type telescope with some basic features that you will find across most telescopes that you should know before considering purchasing this scope. In conclusion, I highly recommend this 10-inch Dobsonian to anyone who has the budget for it as it is an excellent all-round performer. Explore Scientific is one of the newest telescopes and astronomy equipment manufacturers, and it is taking the US by storm with its high quality and relatively low-cost telescopes and eyepieces. Typically the upper tube assembly is formed of two lightweight rings with struts in between, as you will find on this telescope. You can mount the altitude bearings at different positions to take into account different eyepiece weights so the telescope does not become unbalanced. Not a terrible focuser and in my opinion unless something is wrong, you do not need to upgrade it. Easy to put up, take down, and collimate. The poles make up the bulk of the telescope’s length but are quite small. The ES 10” dob includes a red dot finder. The primary mirror is overcoated with Quartz. I will discuss the specifications of the scope, what it includes, what makes the truss design different, and how you use truss telescopes. A quick look at the long awaited Explore Scientific 16" compact dobsonian.#explorescientific #dobsonian #telescopereview Celestron Variable brightness dual red LED astronomer's flashlight $15.95. Won’t lig. Call (866) 252-3811 The F/5 focal ratio also does not create as much coma as a faster mirror and because of that, you do not need an expensive coma corrector to remove distracting aberrations. As the large, heavy tube is ditched for eight poles, the truss design allows this telescope to be FAR lighter and FAR smaller than its alternatives. The upper tube assembly sits on top of the truss poles, and it holds the secondary mirror, finderscope, and focuser of the telescope. The main factor that makes this 10-inch Dobsonian different is that it is a truss telescope. Truss poles replace a typically very heavy metal tube which becomes impractical for large telescopes, and they make the telescope far more portable. The upper tube assembly is also very light as it is almost completely hollow, while still being quite strong. A shroud is a large piece of fabric that goes around the truss poles and blocks any light that would ruin views. Fans also have the advantage of blowing away any would-be dew that could land on the mirror surface, ruining views. The Explore Scientific 10” Dob, being a truss tube has some fairly major changes in operation to other telescopes, but also includes a novel form of collimation. Easy to put up and easy take down, explore galaxies and nebulae in minutes. *Rankings and ratings are calculated by comparing all telescopes on the same price range, in this case, $600 to $800. The dob includes a high-quality 2-inch focuser, which is fairly high quality and smooth, which accepts 2-inch eyepieces and 1.25-inch eyepieces with no troubles. This means that you no longer have to reach to the back of the telescope, risking bumping the telescope and walk back and forth between the eyepiece and mirror box, instead the ES dob includes a tool to collimate the telescope from the eyepiece, so you do not have to reach down to the mirror cell. Now Explore Scientific has introduced truss type telescopes into their lineup, to much joy from amateur astronomers worldwide, one of the first manufacturers tointroduce these extremely lightweight and portable telescopes to the market. Sem o acompanhamento motorizado, só foi possível empilhar algumas poucas centenas de frames.Objetos: Lua, ISS, Mercúrio, Vênus, Marte, Júpiter, Saturno, Urano, Netuno e aglomerado aberto NGC 4755. In conclusion to this review, I believe that the Explore Scientific 10” truss Dobsonian telescope is one of the best portable scopes released in recent years. The shroud can help deter dew, but it is most important if you observe in areas that have bright streetlights that could seriously impact viewing if they shone directly on to the primary mirror. At a relatively cheap price, it is sure to be a great choice for anyone wanting to start getting into deep sky observing. Astro-Tech 1.25"/2" laser collimator $44.95. Next, you install the truss poles onto 4 locations on the mirror box. Won’t light spill into the telescope? F5 is a decent speed for a 10-inch telescope, as it is usable for both planetary and deep-sky observing comfortably, while still being short enough to use without a ladder.
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