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Tag Archives :focus

What is the back focus?

Determining the correct back focus for your telescope can be a daunting task for both beginners and experienced astrophotographers. In this article, we’ll discuss why back focus distance is so important, all the factors you need to consider for back focus distance, and how to use adapters and spacers to get the perfect back focus distance.  ...

Read more  back focus,  optical path,  55mm

What is Prime Focus And How to Do It?

Prime Focus can provide the widest possible field of view, the shortest possible exposure time and moderate magnification. It is usually used to image nebulae, galaxies and other large (but dim) deep space objects.  ...

Read more  prime focus,  astronomy,  photography

Why can’t I focus in with SV205/SV305M and my Newtonian telescope?

In this article, I introduce some focus problems you may meet in the astronomy observation and give the test process to try to help solve it.......  ...

Read more  SV205,  SV305,  focus

The SV193 focal reducer can also be perfectly combined with the SV48/SV48P!

SV48/SV48P+SV193+Adapter=A suitable telescope with a focus reducer.  ...

Read more  SV48,  Focus reducer,  SV193

Have you ever tried watching the moon with sv406p?

If you want to enjoy the moon through a simple and lightweight device, sv406p is a good choice.  ...

Read more  SV406P,  SV406P 20-60X80 ED,  Spotting Scope,  Dual Speed Focusing,  moon,  SC001 WIFI camera

SV503 focuser screw notes and adjustment methods

Learn more about how to adjust your telescope focuser screw.  ...

Read more  sv503,  focuser,  telescope,  screw

Focuser 101

In this blog, I want to share some basic knowledge I learned of the focuser, hope that could be helpful to all of you guys.  ...

Read more  Svbony,  Telescope,  Astronomy,  Focuser,  Telescope Focuser

New Arrival SV108 Double Helical Focuser

This blog is about how the Svbony SV108 double helical focuser works. hope this artical could help you.  ...

Read more  SV108,  Double Helical Focuser,  Svbony sv108 double helical focuser