Martin Lewis

Astrophotographer

Martin Lewis is an engineer, amateur astronomer and an astrophotographer who specialises in planetary imaging.

Recent articles by Martin Lewis

Atmospheric dispersion corrector

Astrophotography

Astronomy explained What is an atmospheric dispersion corrector?

How to collimate a Newtonian telescope

How to collimate a Newtonian telescope

Without preventative measures, dew can make your optics unusable. Credit: Martin Lewis

How can I stop dew forming on my telescope?

Altair Astro Self-Centering Smartphone Telescope Adaptor. Credit: Altair Astro

Astronomy accessories

Altair Astro Self-Centering Smartphone Telescope Adaptor

The final Jupiter image after further brightness and colour balance correction. Credit: Martin Lewis

Astrophotography guides

Image processing Remove the effects of twilight from your planetary images

ZWO 1.25-inch Atmospheric Dispersion Corrector. Credit: 365Astronomy

Astronomy accessories

ZWO 1.25-inch Atmospheric Dispersion Corrector review

£124 Price correct at time of review

With traditional monochrome RGB imaging you have about three minutes to take videos for all three colours, which just gives time for one red image (left); the WinJupos Image Derotate facility increases that time period. The combined image on the right was made from four red videos captured over a 15-minute period and gives a much smoother and more detailed result. Credit: Martin Lewis

Astrophotography guides

Image processing Use WinJupos to derotate your planetary images

The final composition of Martin's crescent Venus. Credit: Martin Lewis

Astrophotography guides

How to photograph Venus with a digital video camera

The Astronomik 2-inch OIII filter. Credit: Modern Astronomy

Astronomy accessories

Astronomik 2-inch OIII Visual Nebula Filter review

£179 Price correct at time of review

Thanks to new technology, detailed images of Neptune and Uranus are within the grasp of even amateur astronomers. Credit: iStock

Astrophotography guides

How to take photos of Uranus and Neptune

Fixing noise makes a monumental difference: on the right is the single best frame from a video of Jupiter, on the left the final edit. Credit: Martin Lewis

Astrophotography guides

Image processing How to remove noise from planetary images

Jupiter, Mars, Saturn and Venus imaged through Dobsonian scopes. Credit: Martin Lewis

Astrophotography guides

Imaging planets with a Dobsonian telescope

Revelation Visual Colour Filter Set. Credit: Kerin Smith, Telescope House

Astronomy accessories

Revelation Visual Colour Filter Set

£34 Price correct at time of review

20150710SkyatNight_6519

ZWO ASI034MC colour USB 2.0 camera review

£118 Price correct at time of review

Skyvision T600

SkyVision 24-inch T600 Compact Go-To Dobsonian review

£1999.99 Price correct at time of review