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Rule of 500: How long before you see star trails in an untracked shot?

Posted by Stephanie Anderson on

The Rule of 500 was invented to help astrophotographers determine how long an exposure can be before stars appear trailed in the shot. This was especially important for film photography because if there was a problem you wouldn’t know about it until the film was developed! To use the rule, simply take 500 and divide it by the focal length of your lens and, voila, the result is the maximum number of seconds you can leave your shutter open before the stars start to appear elongated. Unfortunately, the equation is no longer a very useful one because pixels nowadays are...

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How many stops between two f/ratios?

Posted by Stephanie Anderson on

Faster is better! Ever wonder how much quicker you'll be able to able to image with a reducer? Considering a faster scope? Try our handy-dandy calculator to find out just how much time you'll be saving. Enter your two f/ratios for comparison in the fields below.

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Product Review: The QHY PoleMaster

Posted by Matt Dahl on

I love astrophotography. It is one of my favorite parts of this hobby. Despite the long hours of imaging and processing time, I find it cathartic and relaxing. There is an element, however, of astrophotography that I absolutely don’t like…polar aligning.

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Astronomy Classes Now Available

Posted by Matt Dahl on

We are pleased to announce that Cloud Break Optics will now be hosting classes!  Whether you are new to astronomy or a seasoned veteran, our series of classes will provide you with the information and tools you need to become a better astronomer.

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Telescopes in Seattle…Really?

Posted by Matt Dahl on

  

Washington is a wonderful place to observe the night sky.  The temperatures are comfortable (mostly) and, especially in Western Washington, the seeing can be excellent.  Don’t let rumors about Seattle’s rain ruin your chance to enjoy the night sky.  Grab your telescope and find a nice, dark place to set it up.  Chances are the weather will be pretty darn good, too.

 

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