Sky-Watcher BK804AZ3 Achromatic Refractor Telescope is a specialist in planet viewing and it delivers best results for the activities like astronomy, nature studies and even sports that are been observed from a distance. Telescopes are the available optical device to support such activities and they are capable of bringing the images closer. The following is the review of this model.
Type: The refractor technology has an edge over the other designs as they are enclosed closely keeping away the dust and moisture to enter the optical tube. The optics are fixed and do not have a central obstruction. This makes the device offer a high-contrast and better resolution output. They are best for planetary observation.
The lens: Having been fully multi-coated with the objective lens diameter of 80mm is sure to offer a clear rich view of the stars, clusters, nebulae, galaxies, planets and the lunar. It does not stop there with the few additional accessories like the correct filtering or by the required projection; the user can view the Sun and even the far off terrestrial views. Without the compromise on the quality the vision of the observed objects make it appear clear crisp and with little chromatic aberration.
The Built: The physical appearance is portable and it has a solid built with the robust structure. The weight of this BK804AZ3 telescope is just 1.5kg that can be easily carried along in all endeavours. Be it in the carry on bag or the backpack, it sits perfectly making it suitable for the travelers. This device suits for the beginners and the hobby astronomers. While the installation is simple in few steps, the few alignments of the finder scope and the mount I what has to be done.
Technical details: The focal length of 400 mm with the focal ratio of F/5 makes Sky-Watcher BK804AZ3 Astronomy Telescope perfect for the general celestial observation. It gives a highest practical power of magnification of 160x while the resolving power is 1.45.
Focus: This Telescope can be focused with the finder scope of 6×30. This is a low power attachment to the telescope that helps to locate the objects easily. The optical tube assemblies are been held firmly and the tube mounting rings helps to rotate and balance the device. The available mount is been made of aluminium and is alt-azimuth mount. This allows to be adjusted to locate and follow the viewing object. Also made to stand on the photographic tripod that is quick and simple to operate. It is been supplied with the multi functional mount plate.
Added features: This BK804AZ3 Sky Watcher Telescope comes with the slow motion control that performs both vertically and horizontally. The lens can be used for the astro-photography that takes interesting pictures of the celestial observation. The terrestrial photography can also be taken with this model.
Verdict: Sky-Watcher BK804AZ3 Celestial and Terrestrial Telescope is a real handy and can be used for the travel purpose. However, the features like the motor drive and the counter weights and Go-to function are absent. The accessory tray is been featured large wall to wall that is stands to be an advantage.
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Sky-Watcher BK804AZ3 Astro Photography Telescope - Specification Details
| Manufacturer | Sky-Watcher |
| Model Name | BK804AZ3 Achromatic Refractor Telescope |
| Telescope Type | Achromatic Refractor |
| Magnification | 160x |
| Focal length | 400 mm |
| Finder scope | 6×30 |
| Aperture | 80 mm |
| Eye piece | 2×1.25 |
| Astro photography | Yes |
| Focal ratio | F/5 |
| Mount | Alt-Azimuth |
| Other product specifies | Slow motion control both vertical and horizontal Wall to wall accessory tray Piggyback bracket Terrestrial photography Optical tube with tube mounting rings Piggyback bracket Recommended for easy transportation |
| Resolving power | 1.45 |
| Focuser diameter | 1.25 |
| Application | Both celestial and terrestrial observation |
