Tamron SP 17-50 F/2.8 VC

The 17-50's wide aperture and outstanding performance provide practical advantages in low-light shooting and aesthetic image control. The lens delivers impressive sharpness and striking contrast over its entire focal-length and aperture range, and at its maximum aperture of f/2.8 it produces beautiful images enhanced by shallow depth of- field, and smooth, natural transitions in out-of-focus areas of the image (i.e. excellent bokeh.)

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Transcript:
if you like taking portraits and images in low light Tamron 17 - 50f 2.8 may just be the perfect lens it's part of Tamron's DI-2 series which is designed exclusively for the aps-c size sensor the 17 - 50 is optimized to work with these cameras to achieve a wide to medium telephoto and have great close focusing images you capture with this lens are extremely high resolution and very sharp

f 2.8 is the fastest aperture available in a zoom lens this means you can get much faster shutter speeds than with the traditional zoom lens the focal length of this lens makes it perfect for portraits events and travel and the size and the weight of the lens make it especially attractive it's often difficult to get a clear picture in low light because the camera shutter needs to stay open longer which can often result in blurry images two ways to be able to stop the blur are to used a lens with a fast aperture and a lens that has vibration compensation technology the Tamron 17 - 50f 2.8 has both low-light does not always mean indoors nighttime or evening often the best quality of light especially in the middle of the afternoon is found in shaded areas in these cases the quality of light is very good however the amount of light may be less than ideal by setting your lens to the F 2.8 aperture you let the most light impossible which also helps to freeze action the secondary effect of using a lens with a fast F 2.8 is a narrow depth of field this refers to how much if your picture is in focus the result is a very dramatic image with a precise area of sharpness you may notice that blur in the background that's called bokeh and this lens makes beautiful background blur for shooting available light portraits the combination of fast aperture and VC can't be beat

when you find yourself in really tough shooting conditions at night or by firelight the Tamron 17 to 50 shines as well this image was shot handheld at 1/8 of a second using only the bonfire to illuminate it Tamron has integrated their proprietary vibration compensation technology to help you get better images it works by using a triaxial system for the most effective results as you look through the viewfinder with the VC turned on it looks as though the lens grabs your image and holds it still you may not think that it's a big deal but look at the difference with and without VC the quality and sharpness that you get with this lens combined with the VC technology and fast F 2.8 aperture help you get what you see out there in here.