Sky-Watcher Startravel 102T OTA
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Sky-Watcher Startravel 102T OTA

£165.00
  (4 Reviews)
✓ 2 year warranty

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About this product

Model:  st102ota
Part Number:  10735

The Sky-Watcher Startravel 102 telescope is a tried & trusted two-element, air-spaced achromatic refractor that provides wonderful wide-field views of comets, star fields, star clusters, nebulae, bright galaxies & planets, the Moon and Sun (with proper safety filtering!). 

It is also an excellent telescope for daytime terrestrial observing when used with the supplied erecting prism or as a ‘fast’ fixed aperture lense for both astrophotography and terrestrial photography (camera adapters available separately). 

Features & Specifications

  • Magnifications (with optics supplied): x20, x40, x50, x100
  • Highest Practical Power (Potential): x204
  • Objective Lens Diameter: 102mm
  • Telescope Focal Length: 500mm (f/4.9)
  • Eyepieces Supplied (1.25"): 10mm & 25mm
  • x2 Deluxe Barlow Lens
  • Direct SLR Camera Connection (requires a T-Ring to suit camera)
  • Red Dot Finder
  • Dual-Fit 1.25"/2" Focuser
  • 1.25"/31.7mm Star Diagonal
  • Multi-Coated Objective Lens
  • 62.5% more Light Gathering ability than 80mm

 

What's in the box

  • Telescope OTA
  • Tube Rings
  • Vixen-style Dovetail
  • Red Dot Finder
  • 1.25" Erect-Image Diagonal
  • 10mm & 25mm 1.25" Eyepieces
  • x2 Deluxe Barlow Lens

Customer reviews

Average Rating (4 Reviews):  
Write a Review and share your opinions!

Rating (max 5):  
APO perfomence.
Friday, 26 June 2020  | 

I have to say. For the price, this telescope looks like an Apo. There is no false colour visible which is, astonishing for telescope an F5 achromat. I tested it on some distant trees and I couldn't see any purple chromatic aberration.

The Sky-Watcher Startravel 102 has a focal length of 500mm F5 Doublet air-spaced Achromatic Refractor. This makes for a fast wide-field telescope good enough to show the user- the bright planets and messier objects, together with the brighter objects from the NGC catalogue and double stars.

The focuser is very good and feels solid. This was a nice surprise as I would have expected it to be low quality. SkyWatcher hasn't skimped on the build quality of the focuser. This telescope feels like an Apo- at half the price.

This evening I used the ST 102 for Lunar observation.

The Moon looked clear and sharp despite sharing the sky with some high altitude cirrus.

At F5 the Moon lacks contrast in bright daylight but it was clear with no false colour visible around the limb. If you use the dust cap with the centre dust cover removed. The focal length increases to F10. In this configuration, the Moon is more defined and shows more contrast. This configuration would be ideal for Lunar study-Planetary and Double star observation.

As I was using my IOptron Minitower II I aligned on the Moon. I decided to test the Startravel 102 telescope on some bright stars.
The Sun was very low on my horizon, and the skies were clear and still very bright. Using a 24mm eyepiece (Televue Panoptic) I selected Vega from the list of bright stars the handset had to offer and the mount and telescope turned towards Vega. I looked into the eyepiece and could see a very clear and very sharp tiny dot. There was no astigmatism or pinched optics or any sign of noticeable false colour. The optics are very well corrected.
Moving on I also saw Sadr followed by Arcturus and finally Deneb.

In my opinion, this 4-inch Achromat would be a good choice for anyone wishing to move on from Binoculars to have as there first telescope for any budding amateur astronomer. It is a very good compromise for any person who has a tight budget, and who can't afford an apo. The tube is very light and made from a single sheet of Aluminium. It is finished in Sky-Watchers now-famous Black Diamond paint with Pearl - White dew shield and Focuser.

Achromatic Refractors have certainly come a long way.


Rating (max 5):  
First light
Saturday, 13 June 2020  | 

Thanks FLO for great service again.
For its price point this is a great scope and will help any budding astronomer get into the hobby and give plenty of sleepless nights.
It is well made and even the standard focuser works very well, also reasonably light, portable and fast.
I didn't buy this for normal astronomy or terrestrial viewing so cannot comment on how good it is from that side - check other reviews.
Attach a daystar quark, mono camera, put 82mm ERF at the front with FLO's blacker than the blackest black stuff (flocking) in the middle and you are looking at a scope that out performs my Equinox 80 and WO71. As I use the Quark Prominence it even out performs my old Coronodo Solar Max ii for Prominence's. WARNING - DO NOT make these adjustments unless you are totally sure of what you are doing - eye damage will result I am an experienced solar imager.
.FANTASTIC for solar with adaptations made and no need to change the focuser.

Stay safe and clear skies


Rating (max 5):  
Very versatile bit of kit.
Monday, 13 June 2016  | 

I love this little scope. I purchased it as an F5 RFT in its own right but also as a finderscope for a Vixen VMC200L. I replaced the diagonal with a 2" one which allows a full range of quality eyepieces to be used irrespective of exit pupil size or vignetting.
It is a great little performer for just browsing stars and nebulae at low magnification and surprisingly tolerates a magnification of X80 with very little false color, rendering pleasing views of Saturn, Jupiter and tight objects such as M13 and theta orionis. The extra aperture over an 80mm certainly makes a significant difference in detecting faint objects.

It is a robust bit of kit with no frills. It is so relatively inexpensive for the quality of the optics that I purchased another with a 50mm erect image diagonal as a balcony telescope for a gift with a Sywatcher 28mm LER

For the price, the coma and chromatic aberrations are not worth criticising if you use a good quality diagonal and eyepieces. Care needs to be taken in accessory choice due to limited infocus travel.

For Astronomy I use this little scope as much as the larger Vixen and have also found that it makes a very good telescope for an auto-guider.


Rating (max 5):  
SkyWatcher Star Travel 102T
Tuesday, 11 February 2014  | 

This scope is a solid build, and feels quality through and through. Very little plastic - the all metal rack & pinion focuser is silky smooth, with no focusing tube drift during focusing. The tube is finished in the "black diamond" metallic paint, and is a solid tube, not rolled sheet metal. The short tube and solid build give this scope the feel of an apo, though it is an achromat.
In use, the telescope gave bright, sharp wide field images of the Orion Nebula, with plenty of intricate detail. The Crab Nebula was clearly visible, and stars showed no noticeable coma or CA. When used on the Moon at low magnifications, the scope gave razor sharp images with no noticeable CA. At higher powers CA was apparent but not troublesome.
High magnification views of Jupiter showed CA as a blue/violet halo around the planet, which was not hugely distracting, and disappeared entirely with a yellow filter. Surface detail was exquisite, indicating excellent resolving power. The four Galilean moons were shown as clean pin-points of light.
Overall; for the price, this is a whole lot of telescope, and is a good all-rounder for the generalist. For DSOs, the scope really comes into its own, and its supreme portability makes it the ideal grab and go for expeditions to dark sky sights.
I have used the scope on a SkyWatcher Az SynScan mount, which handles it well, but is prone to wobble in all but the gentlest of breezes. Also, reaching Zenith with the scope on this mount may be a bit of a problem, but not a deal-breaker by any means.
Excellent value for money.

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