12mm vs 17mm vs 24mm
May 14th, 2008 I went to Tiger Mountain to see Taipei 101 and the city view. I used tokina 12-24mm f/4 attached with EOS Kiss Digital X. You can see more information about tokina 12-24mm f/4 here. I just curious about comparison between these focal lengths: 12mm, 17mm, 24mm; so I make some comparison of these focal lengths. You can see the picture below:
If you still use APS-C camera, you need to think about ultra wide angles such as: EF-S 10-22mm, Tokina 12-24mm, Sigma 10-20mm, Sigma 12-24mm, Tamron 11-18mm, or the new Tokina 11-16mm. Remember that some of lenses above only can be attached with APS-C camera. If you use full-frame camera maybe your option is EF 14mm f/2.8L II USM, EF 16-35mm f/2.8L II USM, EF 17-40mm f/4L USM, or Sigma 12-24mm. Sigma 12-24mm gives the widest focal length (focal length equal to 12mm) wider than EF 14mm f/2.8L II USM. If I use full-frame camera I will choose EF 17-40mm f/4L for optimum choice (quality and price), I don’t think to buy EF 16-35mm II f/2.8L (the price is about twice of 17-40L price). If you need fast lens that can be used in low light condition or lens that produce superb DOF, my suggestion is use EF 24mm f/1.4L USM or EF 35mm f/1.4L USM. I don’t think to use EF 14mm f/2.8L II USM because it’s expensive except you are very interesting to capture landscape photo. That’s just my opinion, any comments or suggestions are welcome.