Curve ball, Sigma 17-50 f2.8 OS, fantastic lens, very comparable to the 17-55 (I've shot both side by side on a 7D), far less money.
thanks for your replay
sigma 17-50 also nice lens but it looks cheap build compared to canon and tamron also i read this lens has bad copies
MAC wrote:
thamer08 wrote:
Hello
I am planing to get new lens sharp and high IQ and I found the best choice for my 450d these two lenses
they have the same price on amazon and i am confused of decide which better to me
canon 17-55mm f2.8 is usm
the good
-better zoom range for many use
- has IS
the bad :
- build quality is not good as L lenses
- there are other lenses with similar range and aperture but more less price
sigma 18-35mm f1.8
the good :
- it is new brand compared to canon 17-55
- 1.8 is faster and better in low light
- buying it is similar to buy many prime lenses with f1.8 (24mm,28m,30mm,35mm)
- better build quality
the bad :
- very heavy even more heavy than long zoom lenses !
- small zoom rang
- no IS
- I read there is some focus issues with sigma lenses and bad copies !
sorry for the language because the English is not my native
your 450 body is holding back the resolution equation
upgrade the body to at least the SL1 or T4i or T5i to gain a stop of better noise performance at high iso
http://www.dxomark.com/Lenses/Compare/Side-by-side/EF-S-17-55-f-2.8-IS-USM-on-Canon-EOS-450D-versus-Sigma-18-35mm-F18-DC-HSM-A-Canon-on-Canon-EOS-700D-versus-Canon-EF-35mm-F2-IS-USM-on-Canon-EOS-700D___169_185_1141_870_1086_870
but then here is the thing. The 17-55 IS on a 450 only scores 7 MPix... that is low
whereas, the sigma 18-35 f1.8 scores 15 MPix on a 700d!
my 35 f2 IS scores 14 MPix on a 700d and has 4 stop IS
if you plan to go FF down the road, what I did was buy the 35 f2 IS and the 24 IS and run them on two light weight crop bodies, in my case the T4i and SL1.
at recent I am not thinking of buy any cam and when I buy one in the near future i will not by the same of my camera class (XXXD )
I will upgrade to 70D or full frame like 6D