I'm pretty new to photography but am very interested in it. I've stated before that I recently bought a sony f828 and I'm glad I did. It's verstile, does all that I want, for now, and it's great to learn on. I am though, sometime in the future going to step it up to a real dslr. One thing about the sony that makes beginning photography easy is it has a flexible built in lens. I've been researching SLR lenses and an getting more and more confused. When I go full DSLR I'm guessing I'm going to need 2 or 3 lenses to cover most situations. I was checking out Ritz online and they are listing the drebel in a starter kit with two lenses:
Sigma 28-80mm Autofocus Lens
Mount: Canon EF
Lens Constructions: 7 Groups 7 Elements
Angle of View (Diagonal): 75.4 degrees -30.3 degrees
Minimum Aperture: f22
Minimum Focusing Distance: 19-inches (9.8-inches Macro) / .5m (.25m Macro)
Magnifications: 1:5.4 (1:2 Macro):
Filter Size: 55
Dimensions (Dia x Length) 2.7 x 2.8inches / 69.5 x 71.4mm / (Fully Extended Length 96.5mm / 3.8in)
Weight: 9oz / 255g
Sigma 70-300mm Autofocus Lens
Mount: Canon EF
Lens Constructions: 10 Groups 14 Elements
Angle of View: 34.3 degrees -8.2 degrees
Number of blades in diaphragm: 9
Minimum Aperture: f22-32
Minimum Focusing Distance: 150cm / 59.1in (Macro 95cm / 37.4in)
Magnifications: 1:4 ( 1:2 Macro)
Filter Size: 58mm
Dimensions (Dia x Length) 74.5 x 119.5mm / 2.9 x 4.7in (Fully Extended Length 208.3mm / 8.2in)
Weight: 585g / 20.6oz
Could someone explain to me what some of the less obvious specifications mean, and what a person should look for when buying lenses?