Hello Bobtrips and thank you for responding. Yeah I can do that, but no harm asking more people. .
I am really new to dslr though photography has been in my head since I was in my teens. I have to invest in my first set of lenses and I wanted to find out what do other photographers prefer and their opinion. Of course there is the 50mm prime in Pentax, but maybe someone found a Sigma or a Tamron better. Also the crop factor makes some sense but still haven't quite grasped it. I use a Pentax K10d. I think it has a 1.5 crop factor.
Regards
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In the days of 35mm film the 50mm was the "standard" lens that everyone seemed to own. It's the neutral point between wide angle and telephoto.
When you stick a 50 on an APS-sized sensor camera you get narrower field of view because the sensor is smaller than a frame of 35mm film. Try giving this article a read.
[a href=\"http://www.luminous-landscape.com/tutorials/understanding-series/dslr-mag.shtml]Sensor size and field of view.[/url]
I wanted to take some shots of a gardening project today and grabbed my K100D with the 50-200mm mounted (quite good lens, BTW) and tried to shoot the scene. 50mm was just too long to fit everything in. I couldn't back up enough. Back inside for the 18-55.
I'm looking closely at the Tamron 18-250 as my 'walk-around'. If I get that I would like to get a wide, bright lens for interior work with ambient light. Say something around 20-25mm.