How do you determine when to keep a lens or not? Well, for me personally, a lens has to feel good in the hand and is nice to use. If it doesn't have that then I'll probably not use it much simply for the fact it's not fun to do so. Not being a professional at this I can pick and chose as I like.
If a lens has that effect on my then I'll look at the image quality, how the lens renders on the sensor. If, of course, image qualiy is then abysmal I'll either try with a second copy or not use the lens at all. The final image is the whole point of this photography thing after all, and that is very important but I also like to use the tools I have to get to the final product.
I look at the image above and remember thinking at the time i took the shot that it would be for me, a pleasing image to look at. I could tell at the time that the lens had produced what I was after and if you enjoy using your tools you will, I guarantee, be more careful with your image composition, focusing and everything else that comes with it.
If a lens has that effect on my then I'll look at the image quality, how the lens renders on the sensor. If, of course, image qualiy is then abysmal I'll either try with a second copy or not use the lens at all. The final image is the whole point of this photography thing after all, and that is very important but I also like to use the tools I have to get to the final product.
I look at the image above and remember thinking at the time i took the shot that it would be for me, a pleasing image to look at. I could tell at the time that the lens had produced what I was after and if you enjoy using your tools you will, I guarantee, be more careful with your image composition, focusing and everything else that comes with it.