If you're a new telescope user, you might be happy using the default eyepiece(s) that your telescope comes with. But upgrading to something better can make a world of difference, opening up your ...

The 7x50IF HP WP Tropical have an RRP of ¥187,000 ($1,200 / £950 / AU$1,850 approx). Scale image to represent eyepiece image ...

The result was that the image magnified by the convex objective lens was further magnified by the now-convex eyepiece lens. The only problem was that the resulting image was upside down.

Among those who found a path first was Dr. Cluny Macpherson, a Newfoundland doctor who devised an early gas mask — known as ...

Compact binoculars are notoriously antsy; in this Nikon Stabilized Binocular review we take a look at how it's solving that ...

The Celestron NexStar 8SE is on offer for $300 off ahead of Black Friday, which is cheaper than when it was on offer over Prime Day.

An adapter which plugs into an iPhone to check for throat cancer is being piloted by the NHS in the West Midlands. The device ...

I wondered. One important number associated with every telescope is its focal length, or the distance the light travels after ...

The UK's National Health Service (NHS) is piloting an iPhone-based imaging device to detect throat cancer, aiming to reduce ...

The endoscope-i adapter, which can be attached to an iPhone, includes a 32mm lens endoscope eyepiece and an accompanying app.

A medical technology trial using iPhones in the detection of throat cancer is being undertaken by the NHS amid a surge of ...

Officials hope the new gadget and app will allow thousands of patients to be given the all-clear from the disease much faster ...