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N 150/750 telescope: This versatile Newtonian reflecting telescope provides both beginners and more experienced amateur astronomers plenty of light and high stability for a very modest price. It collects so much light with its generous 150mm diameter that distant DSOs such as the Ring Nebula in Lyra or the Dumbbell Nebula become beautifully visible and globular clusters, such as M13, resolve into a multitude of individual stars at their edges. Planetary observing provides rich detail in images of Saturn, Jupiter, Venus and Mars. The f5 focal ratio means this reflector falls into the class of 'fast' Newtonian telescopes. This telescope is therefore particularly suitable for astrophotography. The light gathering capacity of the 150 is 460 times greater than that of the naked eye alone (with a 7mm fully dilated pupil).
The advantages in a nutshell:
- relatively high light gathering power thanks to 150mm aperture
- resistant to vibration and wind due to compact design
- diffraction limited parabolic primary mirror
- high-contrast image due to thin secondary mirror spider vanes
- portable and quickly assembled
- exposure times for astrophotography can due to the short focal length
The PDS version of the Explorer comes with a dual speed focuser. This has a 1:10 reduction ratio for sensitive focusing which is most important for astrophotography, but is also very useful for visual observing. The tube length has been slightly shortened compared to the Explorer P version and the secondary mirror has consequently been enlarged in order to further optimize the system for astrophotography.
The Sky-Watcher EQM-35 PRO Synscan Modular Equatorial Mount offers the versatility of two mounts in one! A normal Go-To equatorial mount and a lightweight photo imaging mount, which is convenient for travelling.
In standard configuration mode with DEC and RA axes, you can use it as a normal Synscan™ equatorial mount with computerised Go-To and tracking in both axes with access to 42,900+ objects in the Synscan™ handset's database. The payload capacity for visual use is an impressive 10kg in this configuration.
For travelling you can remove the DEC Axis together with the heavy counterweight shaft and counterweights, reducing the instrument's weight considerably. In this configuration you can use a simple 45mm dovetail plate with tripod screw (not supplied) and fit your camera directly using a ball head (not supplied). Alternatively a DSLR can be mounted to a Sky-Watcher Star Adventurer L-Bracket (not supplied). With the DEC axis removed the mount only tracks in RA and you can easily take photos. Now the mount works in a similar way to the Star Adventurer mount, but heavier duty.
The mount head bears some cosmetic similarity to the EQ3 PRO but it has much improved features and performance. For example the mount is equipped with a large 92.5 mm diameter RA worm wheel with 180 teeth for high precision tracking (compared to 130 teeth for the EQ3). Also the strength of the rotary base has been increased. This results in much greater stability, higher payload capacity and less vibration. Through this the periodic error is also greatly improved.
The EQM-35 PRO SynScan is a conveniently sized mount with impressive features suitable for both novice & experienced astronomers alike, for both visual and imaging use.