TS-Optics 1.25″ Achromatic premium Barlow lens 2x with T2 Thread and comression ring, Fully Multi-Coated, TSB21T2

TS-Optics 1.25
  • 2x achromatic Barlow lens with with T2 Thread and comression ring, Fully multi-coated Glass and All metal design, 2-element lens
  • For 1.25″ eyepieces and telescopes with 1.25″, Clear Aperture: 23mm
  • Just insert the Barlow lens between the eyepiece and the telescope and you will double the magnification. At the same time you will retain the comfortable eye relief of the longer focal length eyepiece.
  • blackened lens edges result in optimum contrast and image sharpness.
  • This 2x Barlow Lens can be used both visually and photographically. For visual use it accepts 1.25″ eyepieces with a resulting magnification factor of 2x. For this application the Barlow works the same way like any other Barlow lens.

The Integrated T2 Thread
The special feature of this Barlow lens is its integrated T2 (M42x0.75) thread which allows it to be used photographically. For example you can screw it directly into the T-ring of your DSLR camera. The resulting magnification factor for this use is 2.5x. This of course works also with other cameras with T2 thread, but the factor may be different, depending on the distance between the Barlow lens element and the camera’s sensor.

Lowest Price: £43.95
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ONX3 Sony Xperia Z5 Premium (Black 8x Zoom) Universal Clip-on 8x Zoom Optical Telescope Manual Focus Phone Camera Lens

ONX3 Sony Xperia Z5 Premium (Black 8x Zoom) Universal Clip-on 8x Zoom Optical Telescope Manual Focus Phone Camera Lens
  • Adjustable 8 times zoom lens: Overcome the short coming of camera cell-phone that can only near-sighted, it also makes a distant view for you at the moment.
  • Can be used as a binocular separately. Detachable design: easy to be screwed on to and removed off from the clip, and convenient to carry.
  • Instantly converts your mobile phone into a telescope. The lens comes with a tiny clip which can make you more conveniently to attach to the different device.
  • Fashion light path design, super wide-angle, high resolution, excellent colour revivification performance.
  • Effectively prevents image contortion eye clear and bright picture quality.

Feature:

  • High clarity: made of high-class glass;
  • New design to run of rays effectively avoiding the contortion of image. Good for color reduction producing high quality photography;
  • Detachable lens adds 8x optical magnification to your mobile phone built-in camera;
  • Smart design for focusing longer distance when taking photo or video;
  • It can overcome the short coming of camera cell-phone that can only near-sighted, it also makes distant view for you;
  • Universal lens clip: the lens included in this set can be used with most cell phones and mobile devices including iPhone, ipad Samsung and most mobile phone and tablets;
  • The flash light will be blocked when the lens is in use for back camera. 

Specifications:

  • Magnification: 8x;
  • Minimum focus distance: 3m;
  • Angle of view: 9;
  • Dimensions(main body): 29mm (diameter) x 76mm (length);
  • Weight: 46g;

Lowest Price: £11.99
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Solomark Astronomical Telescope Accessory Kit -Telescope accessories case With Telescope Plossl Eyepieces Set, Filter Set, 2x Barlow Lens (Premium 14pcs Accessories Kit)

Solomark Astronomical Telescope Accessory Kit -Telescope accessories case With Telescope Plossl Eyepieces Set, Filter Set, 2x Barlow Lens (Premium 14pcs Accessories Kit)
  • This fifteen-piece 1.25 inch astronomy accessory kit let you get the most out and enhances the performance of your telescope. It is a great save compared to buying items separately
  • 6mm/8mm/12.5mm/ 20mm/40mm Multi-Coated plossl eyepiece–for different power planetary and lunar observation broad-field lunar observations, star clusters, and a wide range of cloudy nebulas and deep-sky target, as well as daytime use in any telescope.
  • 5 color planetary filters — The five color filters (Red, Blue, Orange, Green&Yellow) and a polarizing filter highlight features on Mars, Jupiter, and Saturn. They are an essential tool of the lunar and planetary observer, for filters permit the observation and photography of surface detail that is often virtually invisible without filtration. Moon filter — helps to dim the bright light from the Moon, making it more comfortable to view so you can see more detail and surface features.
  • 2X Multi-Coated Barlow lens — A visual Barlow, doubles the magnification of any inserted 1.25 inch eyepiece, A prime focus T-adapter for attaching a DSLR camera. With the T2 threads (M42x0.75), you can attach a T-ring for astronomy photography. A tele-extender for increasing the focal length of the telescope when attaching a DSLR camera.
  • An Accessory Case (Silver)–not only does it hold up all the accessories, but also with extra space for another two eyepieces, a laser pointer, a diagonal or other small accessories.

1.25-Inch Telescope Accessory Kit (silver)- 5pcs Plossl Eyepiece Set, 7pcs Filter Set, 2x Barlow Lens – Astronomy

The 1.25″ Eyepiece and Filter Kit is a great starting kit for anyone getting their first instrument or for anyone looking for a good accessories base on which to build on.
The astute astronomer will recognise the terrific value offered in this kit: the eyepieces range is better suited to the average astronomer than similar eyepieces and filters kits from other (famous) brands: indeed the selection of focal lenghts delivers increased versatility by reducing the low focal lenghts eyepieces.
The low focal lentghs eyepieces are often promoted as a good option delivering high magnifications: if it is true the magnification is higher, it is always at the cost of image quality and sharpness and in practice simply less useful and enjoyable.
The kit includes in the aluminium, foam-lined, carry case the following:

Eyepieces:
40 mm Plossl Eyepiece
20 mm Plossl Eyepiece
12.5mm Plossl Eyepiece
8 mm Plossl Eyepiece
6mm Plossl Eyepiece
Specifications: Fully multi-coated/ 4 element optical design / 52 degrees field of view / Filter thread /Standard 1.25″ barrel

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2X Barlow Lens – 1.25″:
Specifications: Doubles the magnification of any eyepieces, effectively increasing the range of available magnifications

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Filters:
#80A Blue Filter
#56 Light Green Filter
#23 Red Filter
#21 Orange Filter
#12 Yellow Filter –
Moon Filter
Polarizing Filter(Single)
Specifications:
Help bring out certain details on the planets
– Moon filter helps reduce the negative effects of glare for a more detailed and comfortable observation
1.25″ filter threads on the filters.

Lowest Price: £112.00
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