11/8/2022 0 Comments Better than system lens os xSome zoom lenses have a variable maximum aperture meaning that it changes depending on focal length. Lenses with larger maximum apertures (slightly confusingly these are the ones with lower numbers) are capable of gathering more light.Īs a F1.8 lens is able to use more light than an F4 lens, this means it could be used in lower-light situations without having to use a flash, and is capable of producing a shallower depth of field (the part of the image that is sharp) as shown below.Ī larger maximum aperture means lens can gather more light, but it also produces a shallower depth of field Maximum Aperture is shown in a number of ways, but whether it's f/2.8 F2.8 or 1:2.8, it all means the same thing and refers to the the maximum amount of light which the lens can gather. BETTER THAN SYSTEM LENS OS X FULLOn a Nikon 1 it would act like a 95 mm lens does on a full frame camera. That means a 35 mm lens would give a field of view equivalent to 56 mm on an APS-C camera like a Canon 70D and equivalent to 70 mm on a Micro Four Thirds camera like the Olympus OM-D E-M1. BETTER THAN SYSTEM LENS OS X SERIESFor Canon APS-C cameras that number is 1.6, for Micro Four Thirds cameras it's 2.0 and for the Nikon 1 series it's 2.7. If your camera has an APS-C sensor (Nikon DX DSLRs, Sony NEX…) it has a crop factor of 1.5 - meaning you multiply the lens focal length by 1.5 to get its equivalent 35 mm-format focal length. If you're using a full frame camera there's no calculation needed, a lens will give you the field of view you'd expect from its number. Therefore, if your camera has a smaller sensor, and there's a good chance it does, you'll need to consider this when deciding which lens you need. As a result, many manufactures give a 35 mm-format equivalent on lenses designed for cameras with smaller sensors and in this article descriptions are based on on 35 mm-format. To make understanding focal length more difficult, the same focal length lens gives different views on cameras with various sensor sizes, because of the crop factor (the sensor only takes up part of the projected image). But that's not to say that some zooms are not better than some prime lenses. Traditionally, primes have been considered to be optically superior to zooms, because trade-offs have to be made when producing zoom lenses. However, if there is a single focal length number (50 mm for instance) it's a prime lens, so taking in more or less of the view will require you to get closer or further away from your subject. If the lens has a focal length range with two numbers (say 24-80 mm) this means it's a zoom lens and is capable of zooming and being used at any point across that range. The difference between various focal lengths, taken on a full frame 35 mm-format camera Hopefully, this guide will help you understand which lenses can be used to achieve what, why others can cost more than a family car … and how there are some sub $150 bargains which could change your photography forever. To the uninitiated, lenses are baffling tubes of glass with numbers and confusing acronyms printed on the side. But knowing the importance of good glass is one thing, it's another to know what lens will give you the creative freedom to capture the photos you want to get. As such, many photographers would prefer to shoot with an okay camera and a great lens, than a great camera with ho-hum glass attached. They control the image that's projected onto your imaging sensor, and ultimately what photos you are taking home. Lenses are arguably the most important part of your camera set-up, they make or break your pictures. But it's really not that surprising, picking the right next lens can be daunting, which is why we're going to try to help with our guide to life after the kit lens. Despite buying cameras which have been specifically designed to take and make use of different lenses, a large number of photographers only ever use the kit lens that their DSLR or interchangeable lens camera came with.
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