Orbinar Plossl 25mm eyepiece 31.7mm (1.25″)

Orbinar Plossl 25mm eyepiece 31.7mm (1.25
  • Orbinar – from astronomers for astronomers / Plossl eyepieces allow you to optimize the image quality of your telescope in a quick and easy way.
  • thread: 1.25″
  • multicoated
  • filter thread
  • 4 lens system

Orbinar Plossl eyepiece 31.7mm (1.25″)
Orbinar – from astronomers for astronomers

Plossl eyepieces allow you to optimize the image quality of your telescope in a quick and easy way.

Our Plossl eyepieces stand out due to their reliable and proven quality; they thus provide a full chromatic correction and a better contrast.

This is possible thanks to their 4-elements coated lens system.

Of course, our Plossl eyepieces feature a screw thread that allows combining them with filters.

Delivery includes a protective receptacle for secure transportation and storage.

Magnification can be calculated by dividing the focal length of your telescope through the focal length of the used eyepiece.

Specifications:
thread: 1.25″
multicoated
filter thread
4 lens system

Contents of delivery:
1x Plossl eyepiece
1x protective receptacle

Lowest Price: £17.99
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Ostara Telescope Plossl High Resolution 25mm Eyepiece – Fully Coated – Wide Field of View – Standard 1.25″ (31.77mm) Fitting – Supplied with Storage Case and Cleaning Cloth.

Ostara Telescope Plossl High Resolution 25mm Eyepiece - Fully Coated - Wide Field of View - Standard 1.25
  • The Ostara HR range of Plossl eyepieces provide excellent value for money with high optical and build quality. Fully coated to reduce reflections with standard astro 1.25″ fitting (suitable for the majority of astronomical scopes and some spotting scopes – ask if unsure).
  • Available in 7 sizes (5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 40mm – see other listings for other sizes).
  • Supplied in plastic cases for protection/storage.
  • Plossl eyepieces provide a wide field of view and are therefore ideal for a wide rage of observational applications such as planetary and deep sky viewing.
  • This listing is for the 25mm eyepiece only – group picture is for illustration of the sizes available

What Magnification is this Eyepiece?
The magnification produced by an eyepiece depends on the optical system it is used in. In a standard astronomical telescope the magnification is found by dividing the focal length of the main tube by that of the eyepiece. For example, a 1000mm scope tube used with a 10mm eyepiece gives 1000/10 = 100x magnification. Used with a 5mm eyepiece gives 1000/5 = 200x.

Lowest Price: £17.99
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Seben Magellan 10-30 Ultra Zoom x 25mm binoculars with green lens coating

Seben Magellan 10-30 Ultra Zoom x 25mm binoculars with green lens coating
  • Steplessly adjustable magnification range of 10x to 30x (20 binoculars in 1!!!)
  • Seben’s original emerald-green lens coating for increased twilight performance
  • Minimal dimensions and very light weight
  • Ergonomic bicolour-design (black/silver)
  • Fold down eyeguards for spectacle wearers

Seben Magellan 10-30 Ultra Zoom x 25mm
Seben’s original emerald-green lens coating

20 binoculars in one!!!
Small + zoom + ergonomic = handy as no other binoculars!

If you expect your observations to be entirely satisfactory and if you want to be delighted by your binoculars each time you use it, you should choose quality!

Ergonomic high-precision binoculars with ultra zoom.

Due to its modern slim-line-design Seben’s Magellan 10-30 Ultra Zoom x 25mm is perfectly suitable for all nature, sports and wildlife spectators. It’s a must have if the combination of user-friendliness and high quality is of great importance to you! Tolerate no more compromises regarding the optical and mechanical performance! With Seben’s Magellan 10-30 Ultra Zoom x 25mm there are no compromises!

The extraordinary characteristics of Seben’s Magellan 10-30 Ultra Zoom x 25mm:

10x – 30x Zoom (20 binoculars in 1!!!)
Seben’s original emerald-green lens coating for increased twilight performance
Minimal dimensions and very light weight
Ergonomic bicolour-design (black/silver)
Fold down eyeguards for spectacle wearers

Specifications:
10x – 30x Zoom
Seben’s original emerald-green lens coating
Exit pupil: 0.8 – 2.5
F-number : 0.64 – 6.25v
Twilight factor: 15,8 – 27,4
Apparent field of view (1000m): 34 – 61.9m
Sight angle: 2,00 – 3,50 Grad
Dimensions: 115x112mm
Weight: 310g

Lowest Price: £42.29
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