Why does the 55-250mm blur the background nicely and easily while the 18-55 does not?
12506
What exactly determines depth of field?
31075
What can be done using a 18-55mm lens?
46631
Why is shutter speed changing after each shot in manual mode?
84007
Why are there no fast APS-C zooms beyond 55mm?
4403
Nikkor f/1.8G 35mm or 50mm?
44009
How can slightly blurred photos be improved in post processing?
85837
What's the difference between real and effective aperture?
21523
How can aperture be f/11 on a lens with an aperture range designation of 3.5-5.6?
136611
Why choose an 80-200mm over an 18-200mm lens?
50343
Why is my camera metering indoor scenes as darker than I expect, forcing me to use a high ISO?
137585
Canon 75-300mm f4-5.6 USM or 55-250mm f4-5.6 IS lens?
1684
How to maximise contrast range of distant landscapes with blue haze?
96641
Why won't my new Canon Rebel T3i take a picture with the 18-55mm lens in autofocus mode?
41048
If I have a 18-55mm lens, is there a point in buying a 35mm prime lens?
39696
How can I take a picture through glass without glare?
48715
Photographic techniques to avoid chromatic aberration?
14565
How does background blur (bokeh) relate to sensor size?