Looking at the clear skies on a winter night, spotting some constellations is so relieving and interesting! Don’t you all agree with me? Yes, it is indeed! And for a stargazing lover like me, there is no other bliss on earth than this!Are you also a stargazer? But struggling a little in spotting them clearly?
So, do you own a Binocular? Especially crafted for Astronomical purpose? If your answer is yes, well you have started giving life to your dreams. If your answer is No, then it’s time for you start thinking on the lines. Buying a Binocular is always an investment for you, even if you own telescopes.
What are Binoculars?
Binoculars are telescopes mounted side-by-side and aligned to the same point, allowing viewer to see distant objects clearly.
Binoculars come in different specifications, suiting your needs. There are different ones for birding, for hunting, for astronomy or for any other specific purpose. Let’s see today the Astronomical Binoculars, used to watch the sky.
Depending on whether you want your binoculars only for sky gazing or you intend to use them at day too, you can chose them based on the features below. Go through them and see which fits your bill.
Magnification:this number represents the number of times the object is magnified.
Brightness: this factor is directly dependent on the magnification and diameter of the lens. When both the parameters are equal, a brighter and sharper image is the end result.
Field of View:this is nothing but the wideness of the lens. This makes following a moving object easier. A lesser magnification lens provides a better field of view.
Weight and size: quality and weight go hand in hand. More the weight of binocular, better the quality, because the weight is from the lens.
Transmittance: this term is very important when it comes in choosing Astronomical Binoculars, as they are mostly used in low light conditions. This term refers to the percentage of light that is not lost through the optical system.
For astronomical purposes, you should consider the below points too.
* Pick up a binocular and look for lenses with anti-reflection coating. It’ll mostly appear dark. If it appears white or ruby red, do not buy them.
* See from the prism side of the lens, it should have a colored surface. If it’s white, then there is no Anti –reflection coating, not good option.
* Holding the eyepiece towards your face, look at the bright disk of the exit pupil. If the disk appears round, it means that the glass is of high quality. If the disk appears square, it means the glass is of low quality, not suitable for astronomy.
Infrared Binoculars: In the Light Spectrum, infrared spectrum lies just next to the visible spectrum. They are specially designed binoculars to enable night vision. Infrared light when focused on objects, the heat emitting ones reflect them. This image is captured, using many technical aspects.
Hence, this technology is incorporated to enable Night vision and form the Night Vision Binoculars or night vision monocular and there are many Night vision devices available.
There are many latest devices added to this list of NVD’s. Night vision goggles are one among them. Based on many Night vision goggles reviews which is done based on few parameters like Gain, Range, Image Quality and Mounting Gear, the Best ones are:
* Armasight Vega
* ATN PVS7-3
* ATN Viper X-1
Hope this info was useful. Happy gazing!