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- What is averted vision
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- Astronomy for beginners – What is averted vision ?
- How important is edge of field clarity through binoculars
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Author Archives: Reviewer
Can you change the eyepieces on Helios Apollo binoculars
The Helios Apollo range of binoculars have eyepieces that are threaded to accept 1.25″ astronomical filters. The eyepieces themselves can not be changed. The Helios Apollo binoculars are available in 7×50, 10×70, 15×70, 20×110 and 25×110. Image shows the 7×50 … Continue reading
Posted in User Guides and Tutorials
Tagged apollo, helios
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Binocular basics. What is a binocular objective lens
A pair of binoculars has two main sets of lenses. The smaller being the eyepieces that you look through. The larger lens at the opposite side is called the objective lens. This can be made up of two, three … Continue reading
Posted in User Guides and Tutorials
Tagged lens, objective
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Skywatcher Allview multi-function computerised mount. New for 2012
New for 2012 is the Skywatcher Allview multi-functional computerised mount. Its many uses include time lapse photography, 360 panorama and astronomy (goto). Attractively priced and very sturdy. Click here for more images and full specs
Posted in News and Blog
Tagged mount, skywatcher
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Hawke Nature-Trek 10×50 monocular. Customer review
A customer visited the Northern Optics outlet at Barton Upon Humber, having previously purchased the illusion 7×35 monocular. They was looking for a monocular with a little more light gathering capability. The obvious choice was the Hawke Nature-Trek 10×50. … Continue reading
Posted in Monocular Reviews
Tagged 10x50, hawke, monocular
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Ostara PL10mm eyepiece review
The Ostara PL10mm 1.25″ eyepiece comes packaged in a handy bolt case. No eyepiece caps are included. Build quality is well up there with similar models. It feels very solid to hold. The eye cup is fold down. As eye … Continue reading
Baader Planetarium Genuine Orthoscopic eyepieces
The Baader Genuine Orthoscopic range of 1.25″ eyepieces are designed for the discerning Planetary , Lunar and Solar observer. At 40 degrees true field, these are not wide angle, but that is not what these eyepieces are for. Superb internal baffling with … Continue reading
Posted in Eyepieces
Tagged baader, eyepiece, orthoscopic, planetarium
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Celestron Nexstar SLT telescope. What does SLT stand for
The SLT in the title of the Celestron Nexstar SLT telescope stands for Star Locating Telescope
Posted in User Guides and Tutorials
Tagged celestron, nexstar, slt, telescope
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Who are Ostara. Binoculars and Telescopes
Who are Ostara ?… That seems to be a frequently asked question on internet forums. Ostara products include Binoculars, Telescopes and astro accessories such as eyepieces and filters. Optical Hardware are the UK importer. Ostara got great magazine reviews, with … Continue reading
Posted in User Guides and Tutorials
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Digiscoping with a Canon EOS body and understanding f ratio,s
When digiscoping with a Canon EOS body on aperture priority , you will notice the f number shows as f0.0 rather than the usual f11, f8, f4 etc. This is nothing to worry about, and the camera will still give correct … Continue reading
Posted in User Guides and Tutorials
Tagged Astrophotography, canon, digiscoping, eos
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