How to calculate magnification (power) of a telescope or spotting scope? Identify the focal length of the scope. This is often marked on the body of the scope or it should be given in the user manual. For...
What do the numbers mean in the binoculars title? In a binocular name, the first number indicates the magnification power and the second number is the diameter of the objective lens in mm. For example, for a...
Introduction This electronic digital eyepiece has a standard fitting interface with eyepiece adapter (i.e., Diameter=1.25" or 31.75mm, fitting height=17mm) that can be fitted to a spotting scope or telescope...
Here is my answer to this member's question:A: Dear eBay Member,You have asked a very important question. Yes, "camera shake" can be a serious problem, especially at longer focal lengths, but there are ...
There is an increasing requirement for attaching a digital camera to a scope to take pictures of distant objects through the scope. You can achieve this by hand holding the camera, for example, or mounting the...
Here is my short guide to buying and using a Microscope! Unlike Telescopes and binoculars, some (though not all!) cheap microscopes sold as toys can have a good optical performance and actually be used at...
DON'T HAVE A HOLE IN YOUR BANK ACCOUNT AND NOTHING MUCH TO SHOW FOR IT, AND IDENTIFY AND AVOID SCAMS.AFTER STUDYING THIS, YOU HOULD BECOME EXCEEDINGLY CRITICAL AND KEEP YOUR MONEY IN YOUR POCKET UNTIL SPENDING...
CONGRATULATIONS. YOU WON A TELESCOPE AND HAVE DONE SOME OBSERVING. THING IS, YOU WOULD LIKE TO MAKE THINGS EASIER ON YOURSELF, SEE SOMETHING BETTER OR WHATEVER.This PART explains the use of common accessories....
THIS PART IS INTENDED TO HELP YOU SELL WHAT YOU HAVE AND PRICE IT ACCORDINGLY. THE AIM IS TO GIVE A TRUTHFUL, ACCURATE AND INFORMATIVE DESCRIPTION THAT TELLS BUYERS ALL THE ESSENTIAL FACTS.If you look at the...