I agree. I had both lenses before. The Sigma is significantly sharper and has negligible CA compared to the Canon. The downside is focusing is slower and noisier on the Sigma as no USM. The 1:2 macro capability of the Sigma is a bonus.dEthANGeL said:I'd go for the Sigma 70-300mm f/4-5.6 APO DG MACRO ...
If the canon was bundled free like in the past, then its more worthwhile. Else i'll get the sigma as its sharper for both macro and general usage. Most CSers would agree its a good lens.
The USM doesn't help much as far as i know ... its just the normal EF 75-300mm f/4-5.6 III with USM motor installed. Image wise, would be still the same (Not sure about thread starter but if i'm paying, i'd rather pay for the image quality if speed is not an issue). Focusing will still be slow but not that noisy. Internal USMs are faster as compared to their external counterparts - that's why Ls have them internally for a reason.guojielun said:75-300 but get the USM version AT LEAST
why don't u try new canon 70-300 f4-5.6 IS USM.Price abit more but u will like it the pic quality.Sharp all the way frm 70-300mm at wide open.I can post some sample pics.jkmchua said:Thanks for the feedback. It has been very useful to me. Infact I've read reviews on both lens and just want to listen to public's view before buying. I will be getting the sigma lens as picture quanlity is more important than speed and I don't mind the noise.
jkmchua said:Thanks for the feedback. It has been very useful to me. Infact I've read reviews on both lens and just want to listen to public's view before buying. I will be getting the sigma lens as picture quanlity is more important than speed and I don't mind the noise.
Sigma lens is also known for easy fogging and lens coating fading.denniskee said:for sigma lens,
1) it is a known fact there is always a danger of not being able to be use with latest slr/dslr.
2) if there is any back focus / front focus issue, good luck.
I suppose it's the process of coating that's more inferior on the sigma ones...IMO Tamron and of cos original Canon ones are very gd.denniskee said:yup, the lens barrel coating of my 70-200mm f2.8 hsm ex apo starts to peel within 1 year of usage. very very disappointed.