Adapter ESATTO 2” LP for telescopes with large 3.3" SC thread allows you to connect the ESATTO 2" LP to Celestron SCT (11" and 14") and EdgeHD (925, 1100, and 1400) models. Since the ESATTO 2" LP has an optical thickness of 32mm and the 3.3” adapter has only 2mm of optical thickness, this leaves 112mm of backfocus for your camera and accessories, also when used together with the Celestron EdgeHD .7x focal reducers for 925, 1100 and 1400 models.

Adapter ESATTO 2" LP for ARCO 2" allows you to connect the rotator to ESATTO 2" LP robotic focuser and control it through the special port on ESATTO. By adding this adapter to ARCO 2", thickness of rotator is 22mm.

ARCO 2" is the new low profile ARC second resolution rOtator that, thanks to its incredible resolution of 1 arc second per step, is the most precise camera rotator and field de-rotator! The 2” version of ARCO has a thickness of only 20mm and a free aperture of 50.9mm. When used together with an equatorially mounted telescope, ARCO allows you to rotate the camera without the need to touch the telescope. When used with an alt-az mount (without a wedge!), it also works as field de-rotator, enabling you to do long exposure astrophotography as never before! Connect ARCO with a single short cable to ESATTO or SESTO SENSO 2, and control it from your EAGLE, any Windows computer or with a smartphone or tablet via WiFi!

• Portable mount that weighs less than 4kg (9lbs)
• Payload capacity: 8kg (17.7lbs) without counter weight and 13kg (28.7lbs) with counter weight
• Multi-function mode: Equatorial and Altazimuth modes
• Wifi control with APP
• Rocker Style Hand controller
• Lightweight Design: Counter weight is not required for most setups
• High precision control and tracking using a strain wave gear reducer with synchronous belt

• Connector: High density XT-60 connector
• Input: 100-240V AC 50/60Hz
• Output: DC 12V/10A
• Power: 120 Watts
• Easy connection and simplicity to use

Gran Turismo 81 , f/5.9 OTA. FPL53 three-element APO, 2.5” R&P Focuser in Space Gray

• GT81 APO
• 2" & 1.25" Adapter Included
• Bahtinov Mask Included
• STM Multi-Coated Lenses
• f/5.9
• This is the Space Grey version

Optical Performance

The Gran Turismo 81 is a Three Element Designed APO refractor. Using FPL-53 glass this telescope provides excellent aberration correction.

Details and Features

2.5" R&P Focuser

The 2.5" R&P Focuser is smooth, stable, and reliable! No image shifting!

New Designed Rotator

William Optics designed camera angle rotator. Smooth and stable.

CNC Handle Bar

Made by CNC with anodizing. Strong and nice look!

Bahtinov Mask

World first built in clear Bahtinov mask!

• Celestron’s iconic “orange tube” design is updated with all the latest features to provide the best stargazing experience for beginners and experienced observers alike.
• 6-inch aperture with excellent light-gathering ability provides impressive views of the Moon and planets, along with deep sky objects like the Orion Nebula, while retaining a compact form factor.
• Fully automated GoTo mount with database of 40,000+ celestial objects automatically locates and tracks objects for you.
• SkyAlign technology gets your telescope aligned and ready to observe in minutes. Even if you’re unfamiliar with the night sky, you can easily align your telescope on any three bright objects.
• Unique single fork arm design and sturdy steel tripod all break down into separate components for easy transport and quick assembly.

Camera technical details

Sensor: Sony IMX533MC
Diagonal: 15.97mm
Resolution: 9 Mega Pixel 3008*3008
Pixel Size: 3.76μm
Max FPS at full resolution: 20fps
Bayer Pattern: RGGB
Shutter: Rolling shutter
Exposure Range: 32μs-2000s
ROI: Supported
Read Noise: 1.0-3.8e
QE peak: TBD
Full well: 50000e
ADC:14bit
DDRIII Buffer: 256MB
Non-volatile memory/On camera storage: Build-in total 192K byte user-accessible space(image size up to 480X320)
Interface: USB3.0/USB2.0
Interface: USB3.0/USB2.0
Adaptor: M42X0.75
Protect window: D32-2-AR
Dimensions: 78mm Diameter
Weight: 470g
Back Focus Distance: 17.5mm
Cooling: Regulated Two Stage TEC
Delta T: 35°C-35°C below ambient
Camera Power consumption: 650mA at 5V
Cooler Power consumption: 12V at 3A Max
Working Temperature: -5°C—45°C
Storage Temperature: -20°C—60°C
Working Relative Humidity: 20%—80%
Storage Relative Humidity: 20%—95%
Max FPS at full resolution:
14Bit ADC
3008×3008 19.88fps
1920×1080 54.11fps
1280×720 79.74fps
640×480 116.55ps
320×240 216.45fps
more resolutions are in software, support customize resolution.

The Lunt 6 x 30 White Light SUNoculars (mini)..

Perfect for kids 13 yrs ADULT SUPERVISION RECOMMENDED!

Truly a pocket sized instrument that you can use to view and safely observe all partial phases of a Solar Eclipse.

Ultra-compact, Lunt SUNoculars-mini have front mounted filters making Solar observation 100% safe.

These front filters are manufactured from CE certified film to ensure the highest level of viewing quality.

The light of the Sun is reduced to a comfortable 1×10-5% transmission and all ultra-violet and infrared components are completely and safely blocked. The Sun will appear as a pleasant orange color.

Lunt SUNoculars-mini are manufactured to the same standards of safety typical to the entire family of Lunt Solar products – the premier manufacturer of Solar telescopes and filters.

ORDER NOW!!

• Manual German equatorial mount with setting circles - to locate and track sky objects
• Adjustable, full height steel tripod with deluxe accessory tray
• Quick and easy no-tool setup
• Accessories include a 20mm and 10mm eyepiece, erect image diagonal, and a finderscope
• Download Starry Night Basic Software with a 36,000 object database, printable sky maps and enhanced images including 3D renderings of stars, exoplanets, and galaxies

• Quick and easy no-tool setup
• StarPointer for convenience
• Quick release dovetail attachment
• Pan handle Alt-Az control with clutch for smooth and accurate pointing
• Rugged pre-assembled tripod with steel tube legs provides a rigid and stable platform
• All coated glass optics for clear, crisp images
• Deluxe accessory tray for convenient and accessible storage of accessories
• Download Starry Night Basic Software with a 36,000 object database, printable sky maps and enhanced images including 3D renderings of stars, exoplanets, and galaxies

• Four great Moon filters in one kit—everything you’ll ever need for optimal views of the lunar surface
• Three neutral density (ND) filters with different levels of light transmission (13%, 25%, and 50%) allow you to choose the perfect filter for your viewing conditions
• Moon & Sky Glow filter provides high contrast views of the lunar surface and enhances observation of deep sky objects from light polluted skies
• Aluminum filter cells provide a rigid, durable housing for the filter glass and are threaded on top and bottom for stacking
• Kit includes a plastic carrying case with Moon map and legend for identifying the most popular lunar features

• Powerful 20x optical system for an image that is close-up to the action
• Large 50mm objective lenses with tremendous light gathering capability
• High-quality everyday binoculars that are easy to take along on all life’s adventures
• Multi-coated optics increase light transmission for brighter, sharper images with high contrast
• Rugged and water-resistant rubber covered aluminum body
• Ergonomic finger ridges for a non-slip grip
• Includes a soft carrying case and neck strap

• Celestron’s iconic “orange tube” design is updated with all the latest features to provide the best stargazing experience for beginners and experienced observers alike.
• 5-inch aperture provides excellent light-gathering ability at an affordable price. You’ll get impressive views of the Moon and planets, along with deep sky objects like the Orion Nebula, while retaining a compact form factor.
• Fully automated GoTo mount with database of 40,000+ celestial objects automatically locates and tracks objects for you.
• SkyAlign technology gets your telescope aligned and ready to observe in minutes. Even if you’re unfamiliar with the night sky, you can easily align your telescope on any three bright objects.
• Unique single fork arm design and sturdy steel tripod all break down into separate components for easy transport and quick assembly.

Step up your astrophotography game with the William Optics RedCat 91, an advanced apochromatic refractor tailored for full-frame and medium-format cameras. This latest addition to the RedCat series combines portability with superior optical performance, making it a versatile tool for capturing breathtaking detail in deep-sky objects.

Highlights:

Petzval Design, No Backfocus Hassles
The 5-element Petzval design eliminates the need for backfocus adjustments, providing sharp, edge-to-edge images with pinpoint stars—ideal for wide-field and detailed astrophotography alike.

Full-Frame & Medium-Format Ready, No Extra Flattener Needed
With a large 55mm image circle, the RedCat 91 is perfect for both full-frame and medium-format cameras. Its advanced optics achieve flat-field images without requiring an additional flattener, giving astrophotographers the freedom to capture expansive views with unparalleled clarity.

Fast f/4.9 Focal Ratio
The RedCat 91's fast f/4.9 focal ratio is designed for bright, vivid captures of galaxies, nebulae, and beyond, ensuring excellent light-gathering power and sharp detail even on faint celestial objects.

Seamless WIFD Focusing
Equipped with William Optics' WIFD focuser, the RedCat 91 provides precise, stable focusing without additional adjustments, enhancing the ease of use for both seasoned astrophotographers and beginners.

The RedCat 91 blends the trusted RedCat heritage with William Optics’ innovative design, making it the ultimate choice for those ready to elevate their night-sky explorations.

• High quality 102mm Maksutov-Cassegrain
• Fully computerized Altazimuth altazimuth mount
• StarPointer™ red-dot finderscope to help with alignment and accurately locating objects
• Quick-release fork arm mount, optical tube and accessory tray for quick, no-tool set up
• Sturdy, stainless steel tripod and accessory tray included
• Perfect for terrestrial and celestial observing
• BONUS Starry Night Special Edition Astronomy Software download with a 36,000-object database, printable sky maps and enhanced images including 3D renderings of stars, exoplanets, and galaxies

• Lab-ready compound binocular microscope with 2000x power
• 10x and 20x eyepieces (10x with pointer)
• 4 fully achromatic objective lenses- 4x, 10x, 40x, 100x
• View specimens at 40x, 80x 100x, 200x, 400x, 800x, 1000x and 2000x magnification
• Adjustable Binocular head
• All-metal construction with fully mechanical stage
• Coarse and fine focus knobs
• Built-in, adjustable halogen lower illumination with Abbe condenser and iris diaphragm