ขาย William Optics RedCat 71mm 71 III WIFD f/4.9 Petzval Apo Refractor Telescope สำหรับกล้องดูดาว ในราคาที่คุณถูกใจ

*PREORDER* William Optics RedCat 71 III WIFD f/4.9 Petzval Refractor Telescope

$*PREORDER* William Optics RedCat 71 III WIFD f/4.9 Petzval Refractor Telescope$

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SKU

WOT-C-71RDIII

ผู้ผลิต

William Optics

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น้ำหนัก

5,500.00 g

ราคาทั่วไป

~~฿56,990.00~~

ราคาของเรา

฿51,990.00 (ส่วนลด 9%)

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William Optics RedCat 71 III WIFD f/4.9 Petzval Refractor Telescope

350mm focal length, f/4.9 Petzval apochromatic astrograph
Upgraded WIFD focuser
45mm full frame imaging circle
FPL-53 glass for colour free apochromatic performance
M48, M54, and M68 male threads for attachment to cameras and accessories
Seamless integration with ZWO EAF

RedCat 71 WIFD III 1

RedCat 71 Optical Design

The William Optics RedCat 71 is the bigger brother to the highly-regarded RedCat 51, which has been raved about by astrophotographers since its release. Building on the RedCat 51's success, the RedCat 71 keeps the same f/4.9 focal ratio and Petzval optical design. This optical design uses four lens elements instead of the three found in triplet refractors. By incorporating this extra element, the RedCat 71 is able to achieve a flat field without the need for an additional field flattener.

RedCat 71 WIFD III 2

RedCat 71 Image Circle & Camera Compatibility

The flat field image circle on the WO RedCat 71 is over 45mm in diameter, meaning it can provide round stars to the corners on a full frame camera, not something many telescopes can claim in this price range. The RedCat 71 telescope comes with a 48mm thread on the back, meaning you can easily attach any dedicated astronomy camera with a standard M48x0.75 connection such as ZWO. For DSLR and mirrorless users, simply add an M48 t-ring for your camera type and you'll be ready to do astrophotography right out of the box.

RedCat 71 WIFD III 3

Designed for Wide Field Astrophotography

The RedCat 71's focal length of 350mm is ideal for wide field astrophotography of large nebulae, galaxies, and the Milky Way. The shorter focal length also makes it very forgiving for beginners because it doesn't require as precise of tracking with a mount. Please note that the new WIFD RedCat series telescopes cannot be used visually at this time, but this could change in the future with the addition of accessories.

RedCat 71 WIFD III 4

Game-Changing WIFD Focuser

New in the third generation of the RedCat 71, this telescope features William Optics' new patented WIFD focuser. This game-changing design allows the telescope to focus by moving lens elements internally instead of externally. This has numerous benefits, including reducing vignetting, focuser sag, and most importantly, sensor tilt. The WIFD focuser is also compatible with the ZWO EAF out of the box, unlike previous versions of the RedCat 71.

William Optics Internal Focus Design focuser diagram showing how the WIFD focuser works

RedCat 71 Specifications

Optical Design: Petzval (4-element)
Glass Type: FPL-53
Focal Length: 350mm
Aperture: 71mm
Focal Ratio: f/4.9
Image Circle: 45mm (full frame)
Focuser: William Optics Internal Focus Design (WIFD)
Focuser Compatibility: ZWO EAF
Tube Length: 427mm
Dew Shield Circumference: 331mm
Dew Shield Diameter: 105mm
Weight of OTA only: 7.1 lbs (3.2 kg)
Weight of OTA with tube rings, dovetail, & saddle: 9.5 lbs (4.3 kg)
Soft Carrying Case External Dimensions: 49x23.5x27 (cm)

RedCat 71 WIFD III 5

Other Information

Country of Manufacture: Taiwan

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$กล้องดูดาว iOptron iExplore 50AZ Refractor Telescope$

กล้องดูดาว iOptron iExplore 50AZ Refractor Telescope

50mm diameter fully coated glass lens
Long 600mm focal length
Alt-Az mount
Produces clear, sharp images of the Moon, planets and bright stars
Short, user-friendly instruction manual included
One year limited warranty

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เลนส์ใกล้ตากล้องจุลทรรศน์ Levenhuk Rainbow 50L WF10x Eyepiece 69421

เพิ่มอัตราขยายให้กล้องจุลทรรศน์ของคุณด้วยเลนส์ใกล้ตา WF10x นี้
ขนาดขอบมาตรฐาน - เส้นผ่าศูนย์กลาง 23.2mm (0.913"). ใช้ได้กับกล้องจุลทรรศน์สมัยใหม่ทั่วไปที่ขนาดขอบเดียวกัน
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Shipping weight: 0 lb (0.02 kg)
Package size (LxWxH): 1.0×2.8×2.0 in (2.5×7×5 cm)
แบรนคุณภาพจาก USA

฿392.00

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*PREORDER* Optolong L-Pro Deep Sky Filter - M77

Optolong L-Pro Deep Sky Filter - M77

฿9,500.00

SvBony SV172 Dew Heater for Telescopes and Camera Lens, 320mm

Designed for astronomy telescopes and cameras, protecting optical devices like telescopes and cameras from fogging or freezing
Prevents dew condensation from forming on the glass surface
Provides even heat distribution. Power-efficient design will not result in an extra drain on your power supply.
Three-speed regulator strong-medium-weak heating modes, you can adjust the temperature in different situations
Width of the 50mm narrow width design, will not block your field of view and will not have dark corners in the field
Great heat preservation effect: Imitating OK cloth, SBR and Black-T three-layer keep warm material fits the lens better, fast and even heating
Alloy fiber heating wire provides super fast and continuous warming, silicone insulation process can prevent internal short circuit
Measure the circumference of the telescope tube or camera lens (or measure the tube diameter - not the scope aperture - ×3.14). Compatible with OD of telescopes/lenses below 101mm

฿695.00

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

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

฿290.00

ZWO ASI678MC USB3.0 Color Planetary Camera with low noise

ZWO ASI678MC USB3.0 Color Planetary Camera with low noise

฿10,990.00

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กล้องดูดาว Askar 130PHQ 130mm f/7.7 Quadruplet Flat-Field Astrograph #130PHQ

Askar 130PHQ four-element refractor with 130mm aperture and f/7.7 focal ratio, ideal for lunar, planetary, and deep sky imaging and visual observing
Built-in field flattener ensures excellent optical performance across big 60mm image circle
Air-spaced triplet objective with two ED elements virtually eliminate chromatic aberration
Rotatable 3.4” rack-and-pinion focuser, threaded adapters, 2” adapter ring
Includes mounting rings, Losmandy-style dovetail, carrying handle, and hard case

฿99,990.00

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เมาท์ระบบคอมพิวเตอร์ Sky-Watcher EQM-35 Pro SynScan Mount พร้อมขาตั้งสแตนเลส

Complete motorisation with control in both axes through high-quality and quiet stepper motors
Automatic accurate tracking of the celestial objects
Automatic locating of more than 42.900 objects
Autoguider interface for astrophotography
Positioning precision of about one arc minute
Maximum positioning speed of 3.4° per second
Electronic reduction of the periodic error - P.E.C.
USB connectivity
Firmware update via internet
Modern quick release system - like with the EQ5 or bigger mounts
Weight w. tripod (without counterweights): approx. 10 kg

฿34,990.00

Sky-Watcher SynScan USB Adapter

Sky-Watcher’s SynScan USB brings older Sky-Watcher mounts into the 21st century, by eliminating the need for outdated serial connections. For those who want to control their mount from a direct PC input, this USB 2.0 adapter allows users to connect to the mount directly, without the need for the hand controller, to connect to the SynScan Pro App for Windows. Cables required to mount any EQ series mount (8-pin to 8-pin) as well as AZ (8-pin to 6-pin) are also included.

฿990.00

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