About this product
The Sky-Watcher Black Diamond 150/750 Photo Reflector OTA is a 150mm aperture Newtonian reflector with diffraction limited optics, all the light gathering power you need for visual use or astrophotography! Newtonian reflector telescopes are among the most cost effective design on the market, reaching much larger apertures than an equivalently priced refractor. The large aperture will help resolve faint, extended objects like nebulae and galaxies, whilst the 750mm focal length will reveal fine details of lunar craters.
The 150/750 Photo Reflector is equipped with an excellent Crayford dual speed focuser allowing fast, coarse regulation followed by a precise 10:1 reduction adjustment knob to reach the optimal focus. A 3 element 28mm LET eyepiece is provided, allowing 27x magnification and a 56° apparent field of view with 20mm of eye relief. The aluminised primary mirror is aspheric (parabolic profile) offering an optical system free from spherical aberration. The secondary mirror is thin to allow fast cooling and it is held by extra thin spider supports for minimal diffraction spike effects on bright stars and increased contrast.
In The Box:
- SkyWatcher Black Diamond 150/750 Photo Reflector OTA
- 28mm LET Eyepiece
- 8×50 Finder Scope
- 150mm Tube Rings
- Dovetail Bar
Optical Design |
Newtonian (Parabolic) |
Diameter/Aperture |
150mm |
Focal Length |
750mm |
f/Ratio |
f/5 |
Finder Scope |
6 x 30mm |
Highest Practical Power |
300x |
Eyepiece |
LET 28mm |
Focuser Diameter |
2″ with 1.25″ adapter |
Tube Weight |
4.93kg |
Tube Dimensions |
81 x 41 x 37cm |
Recommended Usage |
Astrophotography, veiwing galaxies/stars/nebulae |
User Level |
Hobbyist |
Lightweight Portability, Redefined
The EQ-AL55i Pro is the perfect entry to intermediate level equatorial platform for observers and imagers looking to build a serious rig without breaking the bank.
Redesigned from the popular EQM-35 the EQ-AL55i features fully encased motor housings and two positions for the counterweight bar and optional pier extension making this mount the perfect choice for observers and imagers in lower latitudes.
Featuring Wi-Fi, Bluetooth SynScan, and ASCOM telescope control, 10kg payload capacity, a guidescope and SNAP port, the EQ-AL55i is a perfect choice for a mid-size imaging mount.
The SynScan Go-To system allows full control in both axes with high precision pointing, allowing you to quickly and accurately locate objects across the night sky. The Go-To system can automatically slew the telescope on command toward planets, stars, nebulae, galaxies, clusters and much more. The SynScan has 42,900 memorised celestial objects for an amazing journey in the night sky. The Deep Sky Tour function suggests a list of the most interesting deep sky objects currently visible, so even the novice astronomer can easily observe faint objects at the touch of a button.
SynScan Features:
- Database with 42,900+ Objects
- Messier, NGC, IC, SAO catalogues
- Two Star or Brightest Star Alignment
- Autoguiding connection for astrophotography
- Pointing Accuracy Enhancement feature (PAE)
- Unknown Object Identification feature
- Pointing accuracy up to 5 arc min
- Tracking rates: Sidereal, Lunar, Solar
- Slewing speeds: 1x, 2x, 16x, 32x, 64x, 128x, 400x, 500x, 600x, 800x (3.4°/sec)
- Power requirement: 12V DC
In The Box
- EQ-AL55I Mount
- Steel Tripod
- Counterweights
- Accessory Tray
SPECIFICATIONS
Mount Type |
German Equatorial Tracking mount |
Tripod Material |
Steel |
Telescope Mounting |
V Style with optional DSLR mount |
Payload |
10Kg |
Tripod Height |
85-121cm |
Power Requirement |
DC 12~16V – 3A |