Almost everyone knows about the high level of innovation and technology that comes with any OS product, it's clear at first sight.
Many know that OS have introduced new optical designs for todays demanding marketplace amongst both amateur astro imagers and professionals.
A key part of OS philosophy is, trying to be "smart" and one step ahead.
So: they did it again!
Many of OS customers are asking why they don't have a Dall-Kirkham or a CDK telescope in our arsenal of products, well that's because of their way of thinking.
Many other manufacturers just take one classical optical scheme and add some sort of corrector to it, just to have a flatter field and/
or a better spot size, OS always try to make things better.
The RiDK 305 (Riccardi Dall-Kirkham) represents the new reference point for all modified Dall-Kirkham instruments available on the market.
The unique experience and creativity of Massimo Riccardi, Chief Optical Designer at Officina Stellare, gives birth to a new 305 mm diameter astrograph of superior performance and image quality.
Click hereto see sample Image
The results are simply amazing: a system delivering more than a 60mm large corrected and flat field that is over the entire field diffraction limited.
And, more than this, over a spectral range from 380nm to 2000 nm!
These outstanding optics are mounted inside the
state of the art OS-Truss mechanics used in all the OS open tube architecture telescopes. The same mechanics approved and used from worldwide research institutes for professional studies.
The RiDK 305 is 100% Made in Italy. Optics are made in Occhiobello Plant under the strict quality control of Massimo Riccardi.
The mechanics, designed by our R&D Manager, Giovanni Dal Lago, are engineered,
manufactured and assembled at the Thiene plant.
The RiDK 305 is the ultimate astroimaging telescope for whoever desires just the best in imaging all of the deep sky wonders in a beautiful, compact and superbly manufactured instrument.
The long back focus allows any type of accessories
to mounted, including cameras and rotators. It's the telescope for anybody who believes that imaging the Universe is one of the most important, serious and fullfilling experience for all night sky lovers and for for those who believe that image perfection is the minimum to which to aspire.
Model RiDK 300
* Type: Riccardi Dall-Kirkham
* Clear Aperture: Ø 305 mm (12")
* OTA assembly type: Open carbon truss
* Focal length 2400 mm (95")
* F / ratio: f/7.9
* Weight: 27 Kg (60 lbs)
* Overall OTA length: 910 mm
* Overall OTA Diameter: 490 mm
* Spot size (@31.5 mm from axis) Inside the airy disk! (0.9 to 3microns from 380nm to 2000nm)
* Zero expansion carbon truss tube design, splitted light baffle, four Losmandy
type dovetails, three ventilation fans and mirrors heaters with manual control, shroud and cap covers.
* Diffraction limited performance over a 63 mm Imaging Field Circle Diameter - Fully Flat field from 380nm to 2000 nm.
The SKymax 180 Maksutov is now avaialble in Skywatchers Black Diamond finish.
This scope features razor sharp optics and a comparitively small central obstruction.
The result is a scope that provides excellent high power views with very good contrast. this is an ideal instrument for lunar and planetary use and also provides very good performance fopr deep sky work when sued with an appropriate long focal length eyepiece.
Magnifications (with eyepieces supplied): x135 & x300
Highest Practical Power (Potential): x540
Diameter of Primary Mirror: 180mm
Telescope Focal Length: 2700mm (f/15)
Eyepieces Supplied (1.25”): 9mm & 20mm
9x50 Finderscope & Bracket
1.25”/31.7mm Star Diagonal
Dovetail Mounting Bar
This is a high quality "Rumak" Maksutov telescope. The Rumak optical design allows a higher quality instrument with excellent field correction and very smooth optical surfaces to be made at an excellent price vs. performance point. The secondary mirror of a Rumak telescope has a different and precisely figured curvature to the front corrector plate it's mounted on - this is unlike normal Maksutovs which use a silvered spot on the back of the meniscus to reduce manufacturing costs. The result is better control of the optical correction, a flatter field, and less spherical aberration. Frankly, we've not seen anything like this before at this price and the scope truly is a great performer.
This telescope is the perfect size for the iOptron Minitower GOTO mount, with is superb tracking accuracy, fast setup and easy to use 130K object library. We used the Mak 150-1800 on our Minitower with great results. If you order a Minitower with this scope you get £50 off the package - simply choose the menu option below!
Optical performance: We've used this scope extensively. The optics are very smooth and well corrected, and contrast is very high. The 1800mm focal length means you get high power views of the planets and the Moon as well as galaxies and globular clusters. Simply divide the focal length in mm (1800mm) by the focal length of the eyepiece to work out what magnification the scope provides. We tested this scope at Kelling Heath on Saturn, the Moon, Mars and Venus, as well as numerous deep sky objects with our customers. The optics are the best value for the price we have ever seen in a Maksutov. Observers who tried the Mak 150-1800 at the April 2010 Kelling Heath Starparty were amazed when we told them the price. We have also ordered a 200mm 8" version of this scope - let us know if you want to get on the waiting list!
Please note, our first shipment will be arriving in late May/early June 2010. If you pre-order this scope, we will not charge you until the product is ready to ship to you.
Altair Mak 150-1800 Features:
•Dual Speed focuser - 1:10 gear ratio for ultra fine focusing
•"Twist & Lock" dew shield
•High quality Rumak optics with baffled secondary cone
•150mm clear aperture
•Quality 8x50mm finder scope & bracket
•Focal length 1800mm
•Weight approx. 7kg
•Vixen dovetail bar included
•SCT thread on the rear lens cell
•Fully collimatable primary mirror, unlike cheaper scopes
•Multicoated on all optical surfaces
•£50 discount if ordered with an iOptron Minitower GOTO mount.
Meade ACF Advanced Coma Free Optical Tubes offer superb optics in a portable package and are available to attach to your choice of mounting.
Meade’s all new LX200R brings Advanced Ritchey-Chrétien like optics within reach of aspiring astronomers everywhere.
The LX200ACF includes all the field-proven features of the LX200 including Primary Mirror Lock, Oversized primary mirror, Plus the LX200ACF comes with observatory-class optics.
Tubes are supplied without accessories but the 8" and 10" versions do have a universal flat mounting bar running along the base of the tube as standard. We can supply mounting hardware for the 12" and 14" models to suit most equatorial mounts including Losmandy.
Universal Mounting Hardware on 8" and 10" Scopes
F10 Flatfield Design
8" LX200R OTA 19lbs
10" LX200R OTA 28lbs
12" LX200R OTA 36lbs
14" LX200R OTA 60lbs
AN ASTROPHOTOGRAPHERS DREAM TELESCOPE!!
The exciting new Maksutov-Newtonian from Sky-Watcher is just what astrophotographers and serious visual observers have been looking for.
The Maksutov-Newtonian design combines the best features from the Newtonian Reflector and the Maksutov-Cassegrain to create a telescope design that provides truly stunning image quality, providing high-contrast, perfectly flat images, free from false colour. The Maksutov-Newtonian design provides large aperture Apochromatic performance, with exceptional field correction, in a compact, amazingly affordable package. Stars appear as classic pinpoints across the entire field. Perfectly optimised for modern DSLR cameras as well as Cooled CCD Camera's
The premium optics are housed in a robust rolled-steel tube for excellent mechanical integrity. Five internal knife-edge baffles are included to eliminate internal reflections and further enhance contrast. The Primary Mirror is made of low thermal expansion Pyrex® glass for a significantly reduced cool-down time.
Compared to a similarly sized Schmidt-Newtonian, the Maksutov-Newtonian yields a sharper and more contrasty image. Naturally, the Maksutov-Newtonian is an excellent visual performer too!!
Highest Practical Power (Potential): x570
Diameter of Primary Mirror: 190mm
Diameter of Secondary Mirror/Central Obstruction: 50mm/26%
Telescope Focal Length: 1000mm (f/5.26)
9x50 Right-Angled Finderscope
Supplied without Eyepieces
Ultra-smooth, backlash-free 2" Crayford Focuser
2" to 1.25" Eyepiece adaptor
Supplied with tube rings and Sky-Watcher dovetail mounting plate
EQ6 Mounting Recommended
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