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กล้องดูดาว Sky-Watcher Skyliner 10" FlexTube 250P Collapsible Dobsonian Telescope

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SKU

SW-B02017-B03018

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Sky-Watcher

จำนวนในสต๊อก

เหลือ 4 ชิ้น

น้ำหนัก

34,000.00 g

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฿37,990.00

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(จาก 1 ถึง 4)

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กล้องดูดาว Sky-Watcher Skyliner 10" FlexTube 250P Collapsible Dobsonian Telescope

Large 250mm aperture delivers stunning viewing experience
Innovative collapsible design that retains collimation
1235x more light-gathering power than the human eye
Patented tension control handle allows for precise slewing and maximum stability
Parabolic primary mirror with Radiant™ Aluminum Quartz (RAQ™) coating for 94% light reflectivity
Heavy-duty rocker box with Teflon™ bearings provide a stable base with smooth motion
2-inch Crayford-style focuser with 1.25-inch adapter allows for use of nearly any eyepiece

Sky-Watcher FlexTube 250P 10-inch Collapsible Dobsonian Telescope

For decades, the Dobsonian stood as a DIY staple of amateur astronomy, usually constructed with two mirrors, a tube and a base. Often referred to as ‘light buckets’, Dobsonians provide users with the highest possible aperture for their money when compared to telescopes of a similar size, such as Schmidt-Cassegrains or refractors. Developed in the 1970s, the Dobsonian-style telescope is an inexpensive solution for bright, detailed visual observing using a simple design.

Sky-Watcher FlexTube 250P 10-inch Collapsible Dobsonian Telescope separates into 2 sections

The name ‘Dobsonian’ comes from the telescope’s inventor, John Dobson, a Vedanta monk who popularized sidewalk astronomy and dedicated his life to astronomy outreach. Dobson was well known for constructing large aperture reflecting telescopes capable of deep sky viewing, using low cost materials. These were often made with found materials, heavy cardboard tubes, recycled porthole glass, and plywood mounts. Dobson, who literally wrote the book on how and why to make amateur telescopes, encouraged other astronomers to assemble their own telescopes and taught workshops on telescope making.

Sky-Watcher FlexTube 250P 10-inch Collapsible Dobsonian Telescope 2-inch crayford focuser

The Flextube Dobsonian innovates on that original design, offering users the ability to collapse the optical tube using a proprietary truss-tube system while retaining its collimation. The optical tube uses a parabolic primary mirror, constructed of borosilicate, then polished and coated with our proprietary Radiant™ Aluminum Quartz (RAQ™), producing a remarkable 94% reflectivity. With a 10-inch aperture, the Flextube 250P Dobsonian collects 1235 times more light than the human eye! This simple yet effective design is perfect for visual observation of faint objects, such as nebulae, star clusters, and galaxies.

Sky-Watcher FlexTube 250P 10-inch Collapsible Dobsonian Telescope tension control handle

Supporting the Flextube Dobsonian is more than just a simple rocker box. The base uses Teflon™ bearings for smooth, easy Azimuth slewing and a patented tension control handle to lock the telescope in place.

Sky-Watcher Classic 200P 8-inch Dobsonian Primary mirror

Once locked on an object, the telescope can support both 1.25-inch eyepieces as well as the heavier 2-inch eyepieces, allowing you to use virtually any eyepiece on the market.

Sky-Watcher FlexTube 250P 10-inch Collapsible Dobsonian Telescope eyepiece holder

All Flextube Dobsonians come with a slew of accessories, including: two 1.25-inch eyepieces, a 1.25-inch eyepiece adapter, a 2-inch eyepiece adapter, dust caps, and a 8x50 finderscope.

Sky-Watcher FlexTube 250P 10-inch Collapsible Dobsonian Telescope Eyepieces finderscope accessories

At Sky-Watcher, we stay true to the traditional John Dobson design, while offering a fresh look for the 21st century. Although we love computerized telescopes, using a star chart to find objects by hand can be far more fulfilling and will improve your knowledge of the night sky. Unplug your electronic devices, step outside, and become immersed in the wonders of the universe.

SPECIFICATIONS

Optical Info
Optical Design	Newtonian
Mirror Coatings	Radiant Aluminum Quartz (RAQ)™ coatings with 94% reflectivity
Glass Type	Borosilicate
True Aperture (mm)	257
Primary Aperture (mm)	254
F/Ratio	4.7
Focal Length (mm)	1200
Secondary Diameter	64mm
Secondary Obstruction (by diameter)	25%
Secondary Obstruction by Area	6%
Observational Info
Dawes Limit	0.46
Rayleigh Limit	0.55
Limiting Mag.	14.5
Minimum Magnification	36
Maximum Magnification	500
Light Gathering (compared to next size down)	57%
General Info
Focuser	2" Crayford
OTA Length (Retract/Ext.)	31.5"/44"
OTA Outer Diameter	11.375"
OTA Weight (with accessories)	33
Dob Base Weight	26.5
Dob Base Measurements	29.5"x20"
Zenith Eyepiece Height	48"
Accessories
Included Finder	8x50 RACI
Included Diagonal	No
Included Eyepieces	25/10 Plossl
Magnification w/ Included Eyepieces	48x/120x
Included Case	No
Corrector	No

SUPPORT DOCUMENTS

Manuals:
https://inter-static.skywatcher.com/upfiles/en_download_caty01316546523.pdf

About Sky-Watcher

Sky-Watcher was launched in 1999 featuring a modest line of Newtonian and refractor optical tubes, with distribution in Europe and Asia. In 2000, Sky-Watcher released their first series of Dobsonian telescopes, and two years later answered the rising popularity of digital SLRs with their first version of the famed German Equatorial Mount, the EQ6. Today, with a full product line that includes Dobsonians, APO refractors, EQ mounts, and photography products, Sky-Watcher has grown into the most popular telescope brand worldwide.

ปากกาสไตลัส Adonit Jot Mini Stylus สำหรับ iPad, iPhone, iPod Touch และอื่นๆ (สีเงิน)

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วัสดุทำจากอลูมิเนียมและโลหะอย่างดีทำให้ไม่แตกหักและระยะการใช้งานยิ่งขึ้น
คลิปดีไซน์ใหม่เพื่อพกไปกับคุณได้สะดวกยิ่งขึ้น
มีฝาปิดสกูรเพื่่อป้องกันกระแทกของหัวปากกา
สามารถใช้ได้กับ ipad,iphone,MacBook Trackpads,HTC,Samsu,ect.

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กล้องดูดาว William Optics Slide-base UniGuide 50mm Scope - Blue

William Optics Slide-base UniGuide 50mm Scope - Blue

All New Slide-base UniGuide 50mm Scope
(with a Unique 1.25 inch RotoLock) in Blue

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สินค้าหมด

แว่นขยาย Levenhuk Zeno Handy ZH37 Magnifier 74061

Levenhuk Zeno Handy ZH37 is a classic handheld viewing magnifier. It comes in useful for reading small font text, examining tiny details on photographs and engravings, and studying miniature objects. This magnifier is a great assistant for a student, jeweler, engineer, and watch repairer. It is also suitable for general use as well as for solving professional tasks.

฿263.20

SALE

ZWO ASI071MC Pro USB3.0 Cooled Color Astronomy Camera (Large APS-C sensor)

ASI071MC Pro

Most famous sensor of Sony
APS-C(1.8″) Diagonal 28.4mm
16M Pixel (4944×3284)
Very low read noise: 2.3e @24db gain 3.3e @lowest gain
14Bit ADC: provide real 14bit Dynamic range
Electronic shutter: no vibration problem with mechanical shutter

฿34,990.00

SALE

ตัวแปลง SVBONY 0.965" to 1.25" Adapter (สำหรับใช้อุปกรณ์ขนาด 1.25" ใน Diagonal/ฟอกัสเซอร์ ขนาด 0.965")

สำหรับใช้อุปกรณ์ขนาด 1.25" ใน Eyepiece holder / Diagonal / ฟอกัสเซอร์ ขนาด 0.965"
ผลิตจากอลูมิเนียมคุณภาพสูง
มี compression ring สำหรับยึด eyepiece ได้แน่นขึ้นและป้องกัน eyepiece เป็นรอย

฿390.00

ตัวแปลง SVBONY Prime Focus + Variable Eyepiece Projection Camera adapter, 1.25"

Composed of two detachable parts: a prime-focus adapter for prime-focus photography, and a fixed-length or variable extension tube for eyepiece-projection photography.
Supports maximum of 42mm eyepiece diameter
Connects with SLR & DSLR Camera for Eyepiece Projection Photography
Has a handy laser engraved Extension Scale
The 1.25-inch Extendable camera adapter is made of black anodized aluminum and is suitable for all standard 1.25" astronomical telescopes
Easy to connect camera body (needs T-Ring) to a reflector or refractor telescope for either prime-focus or eyepiece-projection photography.
1.25'' barrel is threaded to accept standard 1.25'' eyepiece filters
A thumbscrew in the extension tube holds the telescope eyepiece in place. This combination of prime-focus and eyepiece-projection camera adapter has a sliding barrel design that allows variable projection distances.
Built-in protective pressure ring to prevent eyepiece barrel from being scratched

฿2,490.00

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T-adapter for 23.2mm (0.91") to M42x0.75 male thread, fit for microscopes with standard 23.2mm focusers
Made of machined anodized aluminum, the inside of the adapter is fully baffled to minimize reflections
Connects with specific camera brand's T-ring adapters (sold separately) to connect your 23.2mm microscope focusers to your Nikon/Canon/Sony/Olympus/Panasonic etc. cameras
Made of metal for long term use

฿490.00

ฟิลเตอร์ SVBONY UV IR Cut Filters สำหรับ ZWO QHY SBIG 36mm Electronic Filter Wheel, 36mm Unmounted

For filter wheels that accept 36mm unmounted filters
Compatible with ZWO/QHY/SBIG 36mm electronic filter wheel
Suitable for DSLR, webcams, CCD cameras, planetary cameras, black-and-white camera for bright-field shooting
Long-lasting: made with multi-coated glass with an ion-assisted deposition technology to ensure scratch resistance and stability on the central wavelength
Improve image sharpness, blocks ultraviolet and infrared transmissions but lets visible spectrum through
comes with a plastic case With high pressure EVA case lining

Quickly capture dark frames to optimize photo quality
Opaque - blocks all light from the imaging camera sensor. Help remove dark currents - essential for astrophotography
Easily eliminate camera noise and hot pixels
Dark frame acquisition helps remedy such noise and "hot pixels" by canceling out these disruptive effects during image processing
Threaded and can be directly connected to your filter wheelfor fast conversion between different filters;
Made of metal for durability. High quality packing box includes foam-lined plastic case

฿1,090.00

Optolong L-Ultimate 3nm Dual-Band Filter - 1.25"

The L-Ultimate is a 3nm dual band filter designed to drastically reduce the effect of light pollution. The 3nm isolates the nebulae's emissions into H-Alpha (red) and OIII (green-blue). It blocks light pollution, maximizes the signal from nebulae, and darkens the sky background. It also blocks artificial light from mercury vapor lamps, high and low pressure sodium vapor lights, and unwanted natural light caused by the emission of neutral oxygen in our atmosphere, maximizing the transmission of the main emission lines of the nebula in OIII (496nm and 500nm) and H-alpha (656nm). Used with DSLR, color/MONO CMOS and CCD, this filter is suitable for telescopes with an f-ratio of f/4 or higher (slower).

฿10,500.00

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ZWO NEW 1.25" ADC (Atmospheric Dispersion Corrector)

The ZWO ADC actually does work well. It takes a bit of practice and some searches through the internet on how to use, but if planets are low in the sky the ADC will provide a better image.

Bill

Jan 1, 2021

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