300mm AFS v Sigma 180mm Macro

Discussion in 'Lens Lust' started by Winnie, Jun 4, 2007.

  1. What are the pros and cons of using the 300mm as a closeup lens when compared to something like the Sigma 180mm (which I have)?

    I have seen so many wonderful shots take with the 300mm that I am lusting after it a lot but I wonder what it will give me over and above what I already have. Does it have better contrast etc etc.

    Also, the older non AFS version, is this just as good optically as the AFS? I have seen plenty going on Ebay. I know it doesn't focus as closely but I have some tubes I could use.

    Thanks in advance.