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01-20-2010, 07:56 PM   #1
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Sigma 28-105mm UC-II f/4.0-5.6

Hey, I'm going to be purchasing a K-x soon, and I was wondering if this Sigma lens is even worth bothering with, over the kit lenses that come with the K-x? I already own the lens, a friend got it for me as a gift several years back, and I briefly used it on my K1000. But, the K1000's viewfinder was so dim with this lens mounted and the manual focus ring on this sigma is so touchy that I really didn't use it much.

It will autofocus with the K-x, right? Any advantages to using this over the 18-55mm kit lens?

Thanks.

Charles.

01-20-2010, 09:03 PM   #2
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Well, since you already have it, you'll be able to see for yourself.

It's actually a nice range for walking around with, and I've seen some nice photos out of that model: you won't find the finder view as dim on your newer camera: the viewfinder is kind of high-tech that way: ...that won't get any dimmer than the kit lens does. And, yes, it will autofocus.

This one'll go from a little wide to usefully-long, which is a range I like, myself. Don't know how sharp that lens'll be, but at a guess, it should at least be useful stopped down past f8 or so.
01-20-2010, 09:28 PM   #3
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I use my Pentax 28-105 for indoor family photos with a hotshoe flash. (The camera's flash won't have enough power for this.) I can sit in one place and cover a good-sized room. It's a good range as a companion to the kit, though probably only a half-stop faster if anything. The kit lens is still necessary for anything wide angle.

My lens appears to be Pentax's attempt to build the world's heaviest slow 28-105. At 515g, it's not going to be my first choice for walking around with.
01-04-2011, 11:13 PM   #4
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Yes, it's definitely a heavy lens... it feels like a ton of glass, where the kit 18-55mm lens feels like a toy. (My camera just arrived today!)

Charles.

01-04-2011, 11:26 PM   #5
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Did it tyake a year to get to you

Congratulations and enjoy.
01-05-2011, 02:53 PM   #6
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Shit happens and I couldn't warrant the cost until just recently. But now I'm super happy, got the kit with the 300mm zoom lens for $650 from Adorama!

Charles.
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