Focusers

New SESTO SENSO 2 Robotic Focusing Motor

SESTO SENSO 2 Animation
SESTO SENSO 2 – The highly accurate, advanced, vibration free, robotic focusing motor for your telescope! Connect it to the USB port of your EAGLE or Windows® computer to electronically…
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Australian dealership for Rainbow Astro

RSF Series Secondary Mirror Focuser
Sidereal Trading is excited to announce that we are now the Australian dealer for Rainbow Astro. Rainbow Astro is a division of Rainbow Robotics, a professional mechatronics technology company that…
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    Visual Astronomy, Astrophotography, Microscopy and Macro Photography can be a little complicated sometimes as there are a lot of options. If you'd like to check something before you purchase just let us know and we'd be happy to help!

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    Recent Articles

    A caution about USB-C power supplies

    Refractor with MeLE and Pegasus Powerbox Advanced

    USB-C is becoming an industry standard in astrophotography as it can use fewer cables by sharing power and data. However, some components need higher voltages through that USB-C cable. If you plug a 12V cable into a component that needs 5V you can cause damage. Please be careful!

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    What are high-speed filters?

    Filters, and what are high-speed filters? Filters are great for astrophotography. They work by blocking out colours (that is, frequencies of light) that you don’t want. The images you get…
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    Getting wide field Milky Way images – powering your camera and dew heater

    Milky Way (Image: Joanne l'Anson)

    Getting deep images of the Milky Way can take a lot of power from your DSLR’s battery. Using a dummy battery to power your camera means you can leave it running all night and you won’t have to change batteries. You power the dummy battery with a PegasusAstro DSLR Buddy, and that means you can also run a dew heater strap from the mains, or a big battery.

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