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When it comes to the debate between a rifle<\/a> scope<\/a> with a 42mm vs. 50mm objective, we determine which is best depending on your application.<\/strong><\/p> Will a 50mm objective give me a brighter image and a wider field of view? These are questions we get all the time. Let\u2019s walk through the advantages of the 42mm and the 50mm so you can outfit your rifle with the correct scope<\/a> this season.<\/p> <\/p> <\/p> Just so we\u2019re clear, the objective of a rifle scope<\/a> is the lens furthest away from your eye. In most cases, the objective lens is the largest part of the entire tube body. It plays a critical part in the amount of light that enters the scope.\u00a0<\/p> The basic premise surrounding the objective diameter is the larger it is, the more light is allowed into the scope and ultimately transmitted to your eye. And, the larger it is, the ability to see detail increases as there is a larger \u201csweet\u201d spot in the lens itself.<\/p> <\/p> <\/p> A common misconception is that the 50mm objective provides a wider field of view<\/a> (FOV) than a 42mm. This is false. FOV is determined in the design of the eyepiece and has no baring on the FOV.<\/p> A quick way to prove the FOV misnomer is to punch a hole in a business card size piece of paper and cover the objective. In looking through the scope, you will notice that the FOV does not change, even though you are limiting the size of the objective diameter. However, the image will be much dimmer. This proves the importance of the objective for gathering light. Here is a quick video that demonstrates this theory with a binocular<\/a>.<\/p> <\/p> <\/p> So, how do you know if 42mm or 50mm is the best fit for you? There are advantages to each objective size so it pays to understand the relationship between scope, gun and the type of hunting\/shooting you would like to do.\u00a0 5 Tips to help you make the right choice:<\/p> <\/p> <\/p>