Why is a sigma 28-300mm cheaper than 18-200mm lens?

Question

I am looking to purchase a telephoto lens for my Canon 400D digital SLR, I believe a lower f number is better but the Sigma 28-300mm f/3.5-6.3 DG Macro len is cheaper than the 18-200mm f/3.5-6.3 DC OS Lens! Why is this as I thought the larger the mm the more you could zoom in so the better?

Answer 1

The Sigma 18-200mm has OS (Optical Stabilisation) which means you get less blur and shake free photos ( usually 3 to 4 stops). also the motor is a little quieter and slightly less Chromatic Abberations. Although Its heavier than the 28-300mm due to housing of the OS system

http://www.ephotozine.com/article/Sigma-...

http://www.ephotozine.com/article/Sigma-...

Hope that helps

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Answer 2

I dont know, but I have the Sigma 70-300 macro, and got it New for less than £100 a couple of months ago.

Great lens, and if you want to see some results, message me and I will send you a link to my profile on Redbubble.

Good luck with your choice.