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Hi! I'm just a beginner, so I'm not super knowledgeable, but I'll try to help you out! So first off, the biggest difference is gonna be the zoom range. The 18-55mm has a significantly shorter zoom range than the 70-300mm. The 18-55mm can take basic pictures at semi-close range, such as portraits, while the 70-300mm is for long-range pictures such as a mountain in the distance. This is the most imporant difference between the two. Also to be noted is the difference in f-stop sizes, which denotes the range in apertures. This controls your depth of field. In the case of the 18-55mm, you have an f-stop of between 3.5-5.6, while the 70-300 has an f-stop of 4.5-6.3. Essentially what this means is the 18-55mm lens will do a better job of isolating a foreground object while leaving the background to be more blurry, a common trick used by portrait and still life photographers, and the 70-300mm lens will do a better job of keeping the entire photo in focus, as is common with landscape pictures. Sans these basic differences I don't really have enough knowledge or experience to explain the nuanced differences between these two lenses. Hopefully this gives you a good starting point, though!
Sorry, there was a problem. Please try again later.The 18-55 has a 3.1x zoom ratio, 3.5-5.6 max aperture, 22-38 min aperture, max angle 76, min angle 28 deg 50', min focus distance .9ft. The 70-300mm has a 4.3x zoom ratio, 4.5-6.3 max aperture, 32 min aperture, 22 deg 50' max angle, 5 deg 20' min angle, min focus distance 3.7ft. The 18-55 would be used for wide-angle shots, portraits, fast action, HD video and low-light. The 70-300m would be used for far away subjects, sports, wildlife, concerts, and landmarks.
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