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05-07-2012, 02:57 PM   #1
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which 1 should I buy

Hello am after a cheap lens for my kr am after a bit more reach Than my kit lens I like the look of the sigma 70-300mm DG apo or the sigma 70-300mm DG OS I think this 1 got a built in image stabiliser but no micro but it cost about 100 more any advice would be great thanks

05-07-2012, 03:14 PM   #2
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OS on the lens is pretty useless because you've got SR in the body. Earlier versions of the Sigma 70-300 don't have a good reputation (look them up in the reviews database).

I'd get a Pentax DA 55-300 if that's the reach you're after. I just picked one up for 150 which is impulse buy money.
05-07-2012, 03:16 PM   #3
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Only a few Sigma lenses for Pentax actually have in-lens OS. All new lenses, despite the lens, don't have it, as even Sigma concluded it was redundant. Doesn't mean, they're cheaper, though

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05-07-2012, 04:18 PM   #4
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I was able to get a brand new 70-300 Sigma APO for $70 on Ebay. I've never seen even a used Pentax 55-300 for anywhere close to that. The APO version of the Sigma controls CA very well and has good center sharpness. Not saying you will find that good of a deal in the time frame you've allowed for purchase......just that they do exist. I love mine.....though it's rather tank like compared to the 50-200 Pentax! If you don't need the extra 100mm reach and size/weight is a consideration, that is also an option. When retracted it is about the same size as the 18-55 and just a little heavier.....a marvel from that standpoint.

05-07-2012, 05:49 PM   #5
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How much reach do you need? If you're ok with a lens that maxes out at 200mm+, the Pentax SMC F 70-210 f/4-5.6 is a very nice lens optically. I've seen one go for US$58 once; more typical prices hover between $100~120.

This lens, like the Sigma, is tank-like though. Actually it's not very big, but quite heavy.
05-07-2012, 06:00 PM   #6
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IMHO the best bargain for quality optics in a longer AF zoom is the FA100-300/4.7-5.8 (silver) for around US$100.
05-07-2012, 06:01 PM   #7
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i got a quantaray 70-300 ld lens that is made by tamron on ebay for 70 bucks and it even got a pretty good review on here so if you are looking for a good cheap telephoto try looking for it i love mine.
05-07-2012, 06:22 PM   #8
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Wanted to clarify that the Sigma 70-300 APO I described as tank like is only in relation to the Pentax 50-200. I'm sure it's bigger than the 55-300 too, but not nearly as much. It also seems so much bigger because it's fatter. But I have some older 200mm zoom lenses that weigh almost twice as much even though they aren't as big. It's really not all that heavy.

05-07-2012, 06:33 PM   #9
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QuoteOriginally posted by RioRico Quote
IMHO the best bargain for quality optics in a longer AF zoom is the FA100-300/4.7-5.8 (silver) for around US$100.
I agree. I have 4 different lenses in the 300mm range. All are older, cheaper, ebay buys. The FA100-300 is the one I always grab to use. I paid $80 on ebay.
05-07-2012, 10:05 PM   #10
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QuoteOriginally posted by post_eos Quote
I agree. I have 4 different lenses in the 300mm range. All are older, cheaper, ebay buys. The FA100-300 is the one I always grab to use. I paid $80 on ebay.
cheers for all the great info iv got more option now
05-07-2012, 11:40 PM   #11
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QuoteOriginally posted by safc Quote
cheers for all the great info iv got more option now
Just be sure not to come down with LBA, many of us on the forum are in the terminal stages of that already
05-08-2012, 03:04 AM   #12
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QuoteOriginally posted by Weber Quote
Just be sure not to come down with LBA, many of us on the forum are in the terminal stages of that already
lol I don't think the wife will let me.
05-08-2012, 04:38 AM   #13
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What about the Pentax 80-320mm? lol just throwing it out there, I never actually tried one
05-08-2012, 06:25 AM   #14
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I had the Sigma 70-300 F/4-5.6 and I never liked the images. Flat colors. The APO version may be better.

My current Tele Zoom is an old manual-focus Push-pull 80-200 f/4 made by "Access". I got it in a shop, used for $35. I love it.

When I need a tiny bit more reach, I have a screwmount Takumar 300/4 I got for $125.

If I need more than that I get a teleconverter.

I suspect my advice isn't very helpful, as I'm perfectly happy with manual focus, and not a lot of shooters are.
05-08-2012, 07:00 AM   #15
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QuoteOriginally posted by unixrevolution Quote
My current Tele Zoom is an old manual-focus Push-pull 80-200 f/4 made by "Access". I got it in a shop, used for $35.

Can't beat that price. Yet this also brings up the debate on whether one would really want the one touch zoom versus the seperate zoom and focus rings
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