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Most consumer-level and camera kit lenses will have a variable focal length – you can turn or slide them in order to zoom in and out. If crisp and clear images are more important to you than convenience, these are the lenses you want to look at. Again, because of the relative simplicity of their build, they can have larger apertures (the size of the opening in the lens), and therefore are much more useful for indoor and low-light photography. Because the lens is manufactured precisely to provide this one length, and doesn’t have the moving pieces and mechanisms required to zoom, they can be tack sharp. Prime LensesĪ prime lens has no zoom – it is one focal length, and one only. Just the opposite of wide-angle lenses, telephotos shorten the depth of field, enabling you to isolate your subjects from the background with shallow focus this is when only a short plane is sharp, and everything in front of or behind that plane falls rapidly into blur.
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Telephoto lenses are technically defined as anything exceeding 50mm, though the term is usually used to describe lenses which are beyond 100mm the ranges between 50-100mm are more commonly referred to as “portrait lenses”, because that is what they excel at and are primarily used for. They are wonderful for travel and street photography, because the images strike us as something that we would see with our own eye. These are typically between 35mm and 50mm and are among the most common prime lenses on the market (most brands sell a 50mm f/1.8 for under $250).
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Normal LensesĪ “normal lens”, as he mentions, is one that sees in a similar proportion to the human eye. This, added to their expansive angle of view, make them the ideal choice for sprawling landscapes, as well as tight interiors. These can capture wide scenes, and have a much larger depth of field (more will be in focus, from the foreground to the background). These lenses are fantastic for certain purposes, but are often overused without real purpose – use them with caution.Īn ultra-wide angle lens is one which has a focal length shorter than 20mm, but is built with internal lenses which are meant to correct the fish-eye distortion these are sometimes referred to as “aspherical”.Ī regular wide-angle lens is defined as anything shorter than 35mm. This gives the signature fish-eye effect which bends all straight lines around the center and creates a circular effect in the image. Wide-angle lenses have three classes: Wide, ultra-wide, and fish-eye.You can tell a fish-eye lens by looking at it because the front element bows outwards, allowing it to see as wide as 180 degrees.
#Non fisheye lens professional#
In this helpful video, brought to us by Pentax, professional travel photographer Kerrick James explains the basics things every beginner needs to know about camera lenses: With major brands boasting of lineups of 100+ lenses on the market at any given time, it can be hard to wrap your head around them all. There exists not just a range of focal lengths, from the super-wide to the super-long, but even several variations on a single focal length, not to mention zoom lenses of all kinds. If you’re new to photography, the vast array of lenses on the market might seem a little daunting.