Celestron 31045 astromaster télescope réflecteur | nan Dh

10 avis pour Celestron 31045 astromaster télescope réflecteur | nan Dh

1. 

   Note 2 sur 5

   T. A (client confirmé) – décembre 14, 2021

   Je suis très déçu car par rapport au prix je pensais pouvoir voir des choses incroyables , invisibles a l’oeil nu.Maleureuseument je ne peux que observer la lune.Je ne vous conseille pas de l’acheter si vous êtes fou d’astronomie.

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2. 

   Note 5 sur 5

   P. R (client confirmé) – février 13, 2022

   Commander vendredi arriver mercredi ,reste à attendre les bon moment.vu ses notes et la qualité du matériel je pense que il n’y aura aucun problème

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3. 

   Note 5 sur 5

   J. C (client confirmé) – avril 19, 2022

   offert pour mes parents, semble leur convenir

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4. 

   Note 4 sur 5

   M. G (client confirmé) – mai 1, 2022

   Lo que me gusto: 1.- Es neutoniano 2.- NO TIENE LENTE BARLOW incorporado por lo que la distancia focal del telescopio es la real 3.- Muy fácil e intuitivo para ensamblar cada vez que lo sacas (la montura y el tripie puedes irse ensamblados y el tubo del telescopio aparte) 4.- No es difícil colocar los oculares u orientarlo (solo requieres 2 perillas y un ajuste de elevación).Lo que no me gusto. 1.- al orientarlo con las perillas debes esperar unos segundos a que el telescopio deje de vibrar por el movimiento y quede estático. 2.- Los oculares son los más básicos, peeeero, eso es algo normal por el precio de este producto. Si quieres sacarle provecho deberás comprar oculares más elaborados. 3.- es difícil leer ciertas graduaciones en la base de la montura, por ejemplo los ángulos para la latitud.Lo que debes de saber: ES MENESTER qué leeas los manuales en la página de celestron porque el que viene en la caja no te será suficiente si no sabes ni lo básico de las estrellas o estronomia. USA una app de cel, de las que te dicen las estrellas para que puedas ubicarte más rápido, DEDICALE tiempo a calibrar la mirilla porque así vas a apuntar bien a todo lo que quieras ver. Compra una linterna con luz roja o verde o azul para que veas bien en las noches y no atraigas bichos y puedas ver tus oculares o notas, etc.Con los oculares qué trae puedes apreciar muy bien varios objetos y hasta una galaxia qué esta cerca del cinturón de orion. Disfrutalo.

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5. 

   Note 4 sur 5

   B. S (client confirmé) – mai 12, 2022

   This is a great beginner telescope. I only used the kit included (except for a 3x Barlow lens which I bought separately for about £20), nothing else, and got views of Saturn similar to the image attached (which I pulled from the internet to give readers an idea of what you’ll see through the scope). You can faintly make out the cloud stripes of Jupiter (couldn’t see big red spot unfortunately) and the Galilean moons were also visible. On my first try, having never used a telescope before, it took me about 30-40 minutes to find Saturn through the scope. The second night, I found Saturn and Jupiter in 5 minutes.Set up was pretty simple for an adult and took about 20 minutes.If there was anything I could fault at all (and this is small) is that it doesn’t have easily collapsible legs, there is a static plastic tray that must be twisted off before the legs will collapse and putting the tray back on in darkness would be a bit of a pain. It’s not really a problem, but I just wish it was a quick lever to collapse the legs for quick moving, so I can get it through my door or into my car without having to fiddle with a tray. A flexible nylon tray would have done the same job and made transport easier.Other than that, the telescope is perfect for beginners, you won’t be disappointed.EDIT: I bought the Celesteon 2.3mm lens and, without using a Barlow lens, I was able to snap my own picture (the one of Saturn horizontal, not slanted). It still looks better in person as there’s no shakiness blurring the image (the picture was taken on an iPhone 12 by hand, no mount to keep it still)

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6. 

   Note 4 sur 5

   M. A (client confirmé) – mai 25, 2022

   Certes, beaucoup ont formule diverses critiques par rapport à ce télescope, mais je pense qu’il ne faut pas oublier de le considérer par rapport à son prix. Pour moins de 200€, je le trouve d’excellente facture, les pièces de très bonne qualité, la majorité en métal et non en plastique bon marché. Je ne suis personnellement pas trop d’accord avec l’idée ‘Made in China’ ce qui actuellement ne veut de toutes façon plus dire grand chose.Par contre, fait est que certaines choses sont améliorables: le chercheur, effectivement, les oculaires éventuellement aussi. Mais à l’inverse des petits télescopes vendus en grande surface, celui-ci, étant Celestron, peut être étendu à loisir: autres oculaires, autre viseur, autres accessoires, voire même autre trépied si on le veut.Cela dit, je conseillerais à tou(te)s de bien s’informer avant d’acheter quelque télescope que ce soit: contrairement à ce que l’on peut imaginer, ce n’est pas aussi simple à utiliser qu’on ne pourrait le penser. Soyez également prévenus que les superbes photos (parfois recolorés) que l’on voit ne sont pas faites avec un appareil de 200€: outre la compétence nécessaire à faire de belles images, ce n’est pas Hubble que vous achetez. Mieux vaut le réaliser avant, plutôt que d’être déçu ensuite.Mon but ici était d’acheter quelque chose qui ne grève pas mon budget de milliers d’euros, tout en me permettant d’évoluer, de voir au sens propre et figuré.

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7. 

   Note 3 sur 5

   N. J (client confirmé) – juin 12, 2022

   Une optique de bonne facture qui mérite de meilleurs oculaires que ceux joint avec le télescope. Une bonne conception rendant l’appareil facile à utiliser. Mais ceci est gâché par une piètre réalisation, digne des fabrications chinoises des années 70; vraiment dommage… Si vous êtes bricoleur et minutieux, vous trouverez sur le web plein d’astuces permettant de tirer le meilleur de ce télescope pour une dépense minime. Le chercheur est inexploitable (c’est connu), donc à remplacer.Une notice en français se se situe sur le CD multilingue accompagnant l’envoi.Je mets 2,5/5 car à ce tarif c”est vraiment limite.

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8. 

   Note 5 sur 5

   N. P (client confirmé) – août 2, 2022

   Arrivé très vite, très bien fait, très content.

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9. 

   Note 4 sur 5

   Z. S (client confirmé) – septembre 8, 2022

   Tried the Powerseeker 127EQ first and was only acceptable. Then I bought the Astromaster 130EQ and found it to be a fine quality sharp image excellent Reflector Telescope. You should be prepared to learn a bunch before feeling accustomed to this Reflector but you will be rewarded for your efforts. A laser collimator is a must to check, and if necessary, realign the mirrors, known as Collimating. I spent some time learning how to collimate this Scope, or align the mirrors and I devised an additional step in the beginning as I am a former technical writer.First, making sure the laser Collimator is NOT in the focuser tube and is definitely OFF, stand a few feet in front of the opening or aperture of the telescope and look into the opening where you will see the cross frame in front, the mirror in the back, and the reflection of the front cross frame in the back mirror. Then slowly and carefully concentrate on what you see and move your view slowly so the mirror and reflection of the cross frame appear centered within each other and the telescope tube. The point is to confirm that the main mirror is perpendicular to the axis of the tube such that all parts viewed appear to be all centered or concentric with each other. If looking straight down the tube center, you see the reflection of the secondary mirror frame up front off center and offset from the actual frame up front, then carefully adjust the primary mirror in back so everything looks aligned. That means the back mirror reflection of the front cross frame should be aligned behind the frame when looking absolutely down the center of the tube and the mirrors appear correctly centered. After you have assured a nearly aligned primary mirror when viewed from the front, then you can proceed to install the laser collimator into the eyepiece focuser with the indicator target pointing forward as the telescope does. Turn on the laser and DO NOT LOOK into the front of the telescope until you are done and the laser is out and OFF. Slowly adjust the secondary mirror up front carefully and slowly loosening and tightening very delicately each of the three screws until the laser dot is centered on the target. Remember to very delicately loosen and tighten the screws slowly and in steps between the three until you become accustomed to how the adjustments affect the laser dot on the target.Once you have centered the dot on the target adjusting the secondary mirror up front, then TURN OFF the laser and rotate the laser Collimator in the focuser tube such that the target opening is facing the back of the Telescope where the primary mirror is. Turn on the laser and observe the laser dot on or near the target. The dot should be centered in the target and likely will be close or off towards the outer part of the target. Very carefully loosen the locking phillip screws of the back large primary mirror to allow further adjustment with the larger knurled knobs that adjust the mirror. Very slowly adjust one knob at a time while you become accustomed to the results of each adjustment as they affect the movement of the laser light dot on the target of the collimator. Do this all slowly until you gradually learn the tricks to collimate. Do not make big adjustments to the primary mirror unless you have to. When done, turn OFF the laser collimator and remove it from the focusing tube. Once again, DO NOT look at the laser beam or the front of the telescope while the laser is in use.Now that the eyepiece focuser tube is open, look in the tube and you should see a reflection of your eye’s pupil in the center of the small secondary mirror and mirrors and cross frame should all look centered upon each other or concentric.NEVER LOOK AT THE LASER BEAM END, ONLY THE DOT ON THE TARGET WHEN IT IS INSTALLED IN THE TELESCOPE.A laser collimator really is a must for easy collimation testing before each use of the telescope and especially after transporting the telescope as vibrations may change mirror alignment or collimation.I highly recommend pointing the telescope horizontal during mirror collimation outdoors as the laser light may be considered offensive by planes with resulting complaints and possible law actions. I collimate indoors.DANGER; never look at the laser beam as eye damage can result. Only look at the light dot on the target when the collimator is installed in the telescope. The laser collimators are very low power but safety practices should always be a way of life.In actual use, I just barely saw the cluster of galaxies between Virgo and Leo on a dark night near the new moon and gladly told myself it was worth the money and effort to have seen the dim but visible galaxies with the fuzzy center nuclei of stars. Dark conditions and eyes adjusted to the dark are necessary.I also viewed Jupiter and five of it’s moons in very good detail on a marginal seeing night. The planet was actually too bright and required a filter to lower the the brightness and improve contrast. For the price, it is an excellent light gatherer. I also have a Powerseeker 80EQ Refractor that exhibits very clear images.The Telescope paid for itself when I could see deep space distant galaxies. That is a result of the larger light gathering ability of the Reflector.I recommend Dean Fuller’s video on YOU TUBE on how to operate an equatorial mount and polar align for beginners. It was faster and easier to understand than the written instructions.

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10. 

    Note 5 sur 5

    P. L (client confirmé) – octobre 22, 2022

    je ne suis pas déçu c’est convenable

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