I have 2 lenses for my canon 400d and I'm wondering how you can tell what the aperture range is on the lenses. I have the standard 18-55mm lens but can't see anything on it relating to aperture. I also have the 75-300mm lens which from what I can see has on it 1:4-5.6. Does this mean the aperture range is maximum 4 at 75mm and 5.6 at 300mm? What then would be the minimum aperture?
I am trying to do natrual light portraits and have been told that a large aperture lens works best. Something around 1.8 or 2.8 is better and would give me a faster shutter speed. If this is the case what would the best lens be to use for portraits of children who move pretty fast!!
The pieces of puzzle are slowly coming together....
Thanks for your help everyone.