Having problems with your Pentax K110D Digital Camera ?

Pentax K110D and Sigma 17-35mm F2.8-4 EX DG

\015 Hi there, hope you can help me.\015\012I just bought ne lens Sigma 17-35mm F2.8-4 EX DG for my DSLR Pentax K110D hoping to get right lens for right camera. Lens fits perfectly its made for Pentax mount, but after taking couple shots they look exactly same like on my standard Pentax lens SMC DA 18-55mm. Can some please explain to me why wide angle Sigma lens is not giving me maximum of 103 angle view?\015\012\015\012Kind regards,\015\012\015\012engram\015

Answers :

The Penta K110D has a 1.5X crop factor so a 17mm lense would be the equivalent to 25.5mm (in 35mm standard), therefore may not give you a 103 angle view. You would not really notice that much difference between 17 and 18mm.
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