hívjon minket +36 1 9989202
vagy Kattintson ide ha inkább üzenetet szeretne küldeni


» » » Levenhuk Ra 200RC F8 Carbon OTA

Összehasonlítás

Levenhuk Ra 200RC F8 Carbon OTA

Levenhuk
Ritchey-Chrétien. Objective lens diameter: 200 mm. Focal length: 1600 mm
  • Termékkód: 50751
  • Garancia: élettartamra szóló
  • Tömeg: 10,4 kg
  • Csomag méretei (HxSZxM): 69×36×35 cm
  Levenhuk Ra 200RC F8 OTA is a Ritchey-Chrétien telescope with an aperture of 200 mm (7.9 in) and a focal length of 1600 mm (63 in). The telescope tube of this reflector is made of carbon fiber, which provides for its light weight and lessens its susceptibility to temperature changes of the surroundings. Due to the inherent characteristics of carbo... további információk

Levenhuk Ra 200RC F8 OTA is a Ritchey-Chrétien telescope with an aperture of 200 mm (7.9 in) and a focal length of 1600 mm (63 in). The telescope tube of this reflector is made of carbon fiber, which provides for its light weight and lessens its susceptibility to temperature changes of the surroundings. Due to the inherent characteristics of carbon fiber and its high thermal conductivity, the telescope also requires far less time to adapt to outside temperatures than regular reflectors.

This telescope is perfect for any keen astrophotographer. Levenhuk Ra 200RC F8 OTA has primary mirror made of BK-7 glass with a dielectric coating of 99% reflectivity. This model is also fitted with a dual-speed Crayford focuser with the 2'' large diameter thread.

The relatively compact size of the telescope tube allows for a smaller mount to be used, unlike Newtonian telescopes.

It is recommended that you use the Levenhuk 0.75x focal reducer with any Ritchey-Chrétien model.

Here you can find a list of celestial objects you can see with this telescope.

Astrophotography test shots made with Levenhuk Ra 200RC F8 Carbon OTA by Richard Flinn:

The Elephant's Trunk nebula (IC 1396) The Wizard Nebula in the constellation Cepheus (NGC 7380) The Swan Nebula (The Omega Nebula, Checkmark Nebula, Lobster Nebula, and the Horseshoe Nebula, M17, NGC 6618) is an H II region in the constellation Sagittarius Whale and Hockey Stick (NGC 4657, NGC 4656, NGC 4631, NGC 4627) M78 - reflection nebula in the constellation Orion. M78 is the brightest diffuse reflection nebula of a group of nebulae that include NGC 2064, NGC 2067 and NGC 2071. Horsehead Nebula (a.k.a. Barnard 33 in emission nebula IC 434) - dark nebula in the constellation Orion. Also includes: NGC 2023 - reflection nebulae in the constellation Orion. NGC 4725 - spiral galaxy about 40 million light-years away in the constellation Coma Berenices.
NGC 3718 - highly disturbed galaxy in Ursa Major constellation. Also includes: large spiral galaxy NGC 3729. The Tadpoles of IC 410 Nebula. Also includes: NGC 1893 - open cluster in the constellation Auriga. Whirlpool Galaxy (M51 or NGC 5194) - interacting grand-design spiral galaxy in the constellation Canes Venatici. Also includes: dwarf galaxy NGC 5195 (M51B); low surface brightness galaxy IC 4263. Bode's Galaxy (M81 or NGC 3031) - spiral galaxy in the constellation Ursa Major Draco Group (NGC 5985, NGC 5982, NGC 5981, NGC 5976) - small group of galaxies about 100 million Light Years away M106 (NGC 4258) - a spiral galaxy in the constellation Canes Venatici

You can find a review on Levenhuk Ra 200RC F8 Carbon OTA by Richard Flinn here.

Find out the names of the most interesting celestial objects to observe here and here.

Optikai kialakítás

Ritchey-Chretien

Optikai anyagok

BK-7 üveg

Optikai bevonat

dielectric, 99% reflectivity

Elsődleges tükör átmérője (rekesznyílás), mm

200

Másodlagos tükör átmérje, mm

90

Lencse (tükör) alakja

hyperboloid

Fókusztávolság, mm

1600

Fókuszarány

f/8

Felbontási küszöbérték, ívmásodperc

0.69

Fókusz-állító

2'' dual-speed Crayford

Tube-mount assembly system

dovetail plate

Optical tube material

carbon fiber

Optikai tubus átmérője, mm

230x476
9x18.8

Optikai tubus súlya, kg

7.3
16.1

Rendeltetés

Általános használatra tervezett termék.
A terméket 3 évnél idősebb gyermekek már használhatják.

Tömeg, kg

10.4
22.9

Levenhuk Vélemények:

Here you can find a list of celestial objects you can see with this telescope.

Astrophotography test shots made with Levenhuk Ra 200RC F8 Carbon OTA by Richard Flinn:

The Elephant's Trunk nebula (IC 1396) The Wizard Nebula in the constellation Cepheus (NGC 7380) The Swan Nebula (The Omega Nebula, Checkmark Nebula, Lobster Nebula, and the Horseshoe Nebula, M17, NGC 6618) is an H II region in the constellation Sagittarius Whale and Hockey Stick (NGC 4657, NGC 4656, NGC 4631, NGC 4627)
There are no recent reviews available for this product.

Levenhuk Vélemények:

Here you can find a list of celestial objects you can see with this telescope.

Astrophotography test shots made with Levenhuk Ra 200RC F8 Carbon OTA by Richard Flinn:

The Elephant's Trunk nebula (IC 1396) The Wizard Nebula in the constellation Cepheus (NGC 7380) The Swan Nebula (The Omega Nebula, Checkmark Nebula, Lobster Nebula, and the Horseshoe Nebula, M17, NGC 6618) is an H II region in the constellation Sagittarius Whale and Hockey Stick (NGC 4657, NGC 4656, NGC 4631, NGC 4627)

Levenhuk Ra 200RC F8 Carbon OTA - Total: 6 Negatív 0 Pozitív 6


Josh Spencer (2016-01-17 01:19): Pozitív
What's the focuser barrel diameter? Levenhuk Customer Service:
Levenhuk Ra 200RC F8 Carbon OTA has 2" barrel diameter.

Dwight Sloan (2015-12-17 03:57): Pozitív
Wanna buy Levenhuk Ra EQ5 GoTo mount with this telescope... Is it going to hold it? Isn't it too heavy? Levenhuk Customer Service:
Yes, Levenhuk Ra EQ5 GoTo can be used to support Levenhuk Ra 200RC F8 Carbon OTA.

Bruce (2013-11-22 12:42): Pozitív
Please tell me, why there is one more dovetail plate on this tube? And when it's gonna be in stock? Levenhuk Customer Service:
It allows you to fit the tube with additional accessories like viewfinders, guiders, etc. Unfortunately in-stock date for this tube is currently not defined.

Bruce (2013-11-18 03:26): Pozitív
Which one is better for visual observations - this 200 mm Ritchey or 203 mm Schmidt-Cassegrain. The Schmidt-Cassegrain one has a very long focus and small focal ratio though. Levenhuk Customer Service:
Levenhuk Ra 200RC F8 Carbon OTA is more suitable for astrophotography.

Richard Flinn (2013-10-03 01:47): Pozitív
I have owned this scope for a couple months now and would like to share my opinion of it here. First of all, the carbon fiber tube simply looks outstanding. Aside from its good looks, the carbon fiber tube also serves a very important function. I can image with it over multiple nights and not have to adjust focus. This is something I simply cannot do with my steel tube newtonian and refractor astrographs. The focuser itself is very smooth and seems to be more than adequate using my Canon 1100D. I dont know how it would do with the added weight of a CCD camera, filter wheel, etc., but it has done its job so far. I am now perhaps spoiled after installing a Moonlite on my newtonian and will probably upgrade the focuser sometime but its not something that is needed at the moment. The second thing I would like to mention is that I am very happy with how the stars appear in my images. Most of you that have imaged with newtonians and refractors know that a coma corrector or field flattener is needed. The stars in the corners of my images look very good. They are not perfect but I would say they are better than what my f/4 newt with Baader Mark III MPCC combo produces. This is also with a full size DSLR sensor. If you are using a camera with a smaller sensor then you probably will not see anything wrong with your images. Also worth noting is that the scope was slightly out of collimation when I received it. I have only adjusted the secondary screws to get a nice looking diffraction pattern on an out of focus star. Further tweeking with the primary adjustment screws could make my corner stars look even better. Imaging at f/8 with a DSLR was pretty tough for me after being use to the fast optics in my f/4 newtonian. For this I purchased the Astro Physics CCDT67 Telecompressor. The reducer screwed into a 23mm long Baader 2"/T2 nosepiece has dropped the focal ratio from f/8 down to f/5.68 and has proven to be a very good combo. I also own the AT8IN and AT65EDQ astrograph offerings from Astro Tech. I like both of these scopes a lot but the Levenhuk Ra 200RC is an excellent telescope and is my weapon of choice for long focal length astrophotography. I also own an 8" and 10" Schmidt Cassegrain scope and this RC is many times over the better imaging scope. I would recommend this telescope to anyone looking for a long focal length astrograph. I have managed a few test images using my Baader UV/IR modified (by Gary Honis) Canon camera. The image of the Wizard nebula is the only one I have spent a good amount of time on (4.5 hrs). The Elephants Trunk is just 21 subs and the Swan is just 14. The Swan was shot at f/8 and the other two were done using the Telecompressor. The pictures and more info on the images and other equipment used are provided in the links below. http://www.astrobin.com/57954/ http://www.astrobin.com/58404/ http://www.astrobin.com/55247/

David (2013-06-06 01:19): Pozitív
Does this have the linear steel bearing for the focuser? Does this have a "L" dove tail on the bottom and a "V" on the top? Does this truly have a fan on the bottom (I think that is 10" version only)? thank you Levenhuk Customer Service:
Hello David, Thank you for your interest in Levenhuk products! Yes, the linear steel bearing for the focuser is included in a standard package. You can find the detailed picture of fastening here: https://cdn.levenhuk.com/images/products/large/0/levenhuk-ra-200rc-f8-carbon-ota-dop5.jpg Unfortunately, this model comes without fan. Thank you for your attentiveness, we have amended the description. Please let me know if you need further assistance.

Küldje be a(z) termékkel kapcsolatos kérdését vagy véleményét Levenhuk Ra 200RC F8 Carbon OTA:

Kérjük, töltse ki a(z) "Név" mezőt.

Kérjük, töltse ki a(z) "E-mail cím" mezőt.

Kérjük, erősítse meg hozzájárulását a személyes adatok gyűjtéséhez és feldolgozásához.

 Hozzájárulok személyes adataim gyűjtéséhez és feldolgozásához.
Az űrlapon elküldött személyes adatokat kizárólag rendelése vagy kérelme feldolgozásához használjuk fel. Adatait a jogszabályoknak és a GDPR 2016/679 (az EU Általános Adatvédelmi Rendeletének) megfelelően, biztonságosan tároljuk.

Kérjük, töltse ki a(z) "Az Ön kérdése vagy megjegyzése" mezőt.