guys, say for the tamron 17-50 & kit lens 18-55, if i don't use the f2.8 @ 50mm zoom for the tamron, and i do like wise on my kit lens, would the pic b any difference, say all the rest of the settings are the same, aperture, time, angle etc. i'm just trying to understand this constant aperture advantage over a non and how it relates to quality of pictures produced etc. thanks again for all the replies in advance!!![]()
What aperture do you intend to use with the Tamron at 50mm and kit lens at 50mm?
At the same focal length, the view is almost the same else identical. Given the same aperture say f/8.0, the time required for both lenses @ 50mm will be the same as well (given the same shooting condition for both lenses).
Its the sharpness etc that determines their difference in quality.
