New Lens

Tysonator · 27 Aug 2010 at 13:05

Hi all,
I have a Canon EF 70-300mm F4 – 5.6 IS USM MkII lens. Now this lens is not a bad lens until you use the full focal length 300mm. At this length the image comes out soft, and from what I can gather this is at most of the aperture range !

Now what I am looking to do is replace this lens will and better quality one.
The question is, which one ! ?

I have looked at going extreme with the Sigma 120-400mm !
As I have a 7D which uses the APSC size sensor the crop factor pushes this to 193mm-640mm, pretty amazing !
Though this could be a bit to extreme really as I get from the EF 70-300 a focal range of 112-480mm !

What lens should I be looking at ?

Tysonator · 27 Aug 2010 at 14:15

What about the Sigma 70-300mm f/4-5.6 OS DG Macro ! ?

Tysonator · 27 Aug 2010 at 21:21

I would go for a 1.4 teleconvertor, as the 2x does not perform well at all. There are plenty of views on google of users opinions on the 2x.
Also Canons teleconvertors will only work with L lens !
As for my target use, well Sport, and Festivals so low light performance is important, for every thing else I use a Sigma 17-70 DC lens.

Tysonator · 28 Aug 2010 at 21:15

Canon lens I thought were general slightly better than Nikon ones !
Do the canon teleconvertors only work on the L lens ?

Tysonator · 29 Aug 2010 at 15:35

I am not sure what lens to replace my 70-300 IS USM, if any, apart from a Canon L lens !