What is the difference between 24-70 and 24 105?
What is the difference between 24-70 and 24 105? The 24-70 mm has a zoom ratio of 2.91 while the 24-105 has a zoom ratio of 4.375. The shorter length 24-70 mm zoom also has a maximum aperture of f/2.8, making it twice as fast as the 24-105 mm's maximum aperture of f/4.0. What is 24-105mm lens good for? The 24-105mm is great for urban shots where you want to zoom out to get the whole scene. It is also nice to walk around with one lens when you have to climb a bunch of stairs, like at St. Paul's...