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01-29-2013, 02:23 PM   #16
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Sigma 75-200 f3.8 AF
its great, very cheap (theres one in the marketplace for 125 $) and all metal
also its not that slow. definetly faster than the Sigma 75-300 and the pentax 55-300

01-29-2013, 02:26 PM   #17
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The FA 77 is also a favorite of mine for kids. Great in low light and crop able. It does seem significantly longer than a 50 to me.
01-29-2013, 03:42 PM   #18
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QuoteOriginally posted by dankoBanana Quote
Sigma 75-200 f3.8 AF
its great, very cheap (theres one in the marketplace for 125 $) and all metal
also its not that slow. definetly faster than the Sigma 75-300 and the pentax 55-300
Thanks for the heads up. I look into this lens and I wanted to share that on the k-01, this lens doesn't focus at 200 with the k-01 liveview, and will front focus at 75mm.
01-29-2013, 03:59 PM   #19
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For "decent bokeh and 3d pop," with kids at twilight, you'll want a fast autofocus. Based on the lenses you have, to meet that need, I say DA70. That isn't to say it would be the best choice.

I recommend getting a cheap telezoom, like an FA 80-200 in the $30 range. That'll help you learn what features you want before you spend much money. Maybe you'll like the long reach; maybe you'll lament the lack of speed. But better to make a mistake with a cheap lens than a more expensive one. That said, if you can float the cost, buy whatever you want used from the forum and you'll be able to sell it to someone else for, most likely, about the same price.

01-29-2013, 09:38 PM   #20
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I have the Pentax 55-300 I and use it to shoot birds, etc.. It is a great lens, but does not support close focus, eg. not so good for shooting flowers, etc. Also, I found that it it better to let the camera focus this lens vs. manual focus.

You might consider the Sigma 18-250 Macro.

Last edited by dmfw; 01-29-2013 at 09:40 PM. Reason: editing
01-29-2013, 09:53 PM   #21
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if you can save a little more for a used Tamron 70-200/2.8 ($580-ish), you won't be sorry!!
01-29-2013, 10:32 PM   #22
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The Pentax 55-300 if on a budget, Tamron 70-200 if not. Or the 70 if you like primes, but it is not really that long. Or the Tamron 90 and get true macro as well.

I only got rid of the 55-300 because I had a bit of FL duplication.
01-29-2013, 11:51 PM   #23
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QuoteOriginally posted by dmfw Quote
I have the Pentax 55-300 I and use it to shoot birds, etc.. It is a great lens, but does not support close focus, eg. not so good for shooting flowers, etc. Also, I found that it it better to let the camera focus this lens vs. manual focus.

You might consider the Sigma 18-250 Macro.
I disagree. At 300mm it is about a 1:4.5 close focus...










With a Raynox it is close to 1:1

https://www.pentaxforums.com/forums/lens-clubs/74221-raynox-macro-club.html?h...ht=raynox+club

01-30-2013, 12:01 AM   #24
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not sure if this will work, but here are a few tele shots taken with the Tamron 70-200/2.8

Lens: Tamron 70-200/2.8 - a set on Flickr
01-30-2013, 08:56 AM   #25
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QuoteOriginally posted by mikeSF Quote
not sure if this will work, but here are a few tele shots taken with the Tamron 70-200/2.8

Lens: Tamron 70-200/2.8 - a set on Flickr
That's a great set!
01-30-2013, 10:59 AM   #26
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QuoteOriginally posted by Na Horuk Quote
I would skip the DA 50-200mm and go for the 55-300mm. According to reviews, it has better IQ, but doesn't cost too much.
The reviews are wrong. I have both and there is little real difference in IQ. The 55-300 gets rarely used - the 50-200 is much lighter, shorter, has WR and ends up on my camera instead
01-30-2013, 11:28 AM   #27
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QuoteOriginally posted by chiane Quote
I currently don't own anything longer than 55mm. I would use a longer lens for kid shots with decent bokeh and 3d pop, and architectural detail shots, and for the few times I just want some reach. I don't shoot birds or animals or anything that I need true reach with. None of this is at the pro level, so I don't need the best or nothing. I could go real cheap and get a used 50-200mm, or maybe the 18-135, or even just do a da 70mm. Of course the 50-135mm is probably a good choice, but the thing is huge (for me), and not cheap. Give me some direction?

I currently have a sigma 10-20mm, a da 15, 35 macro, 40mm, and a Sigma 30mm f1.4, the 18-55 kit lens, and a few manual 50mm's.
It seems to me the faster lenses are the ones that help produce images that pop. Maybe the Sigma 70-200mm F/2.8? The slower telephotos tend to give that telephoto look. I do get good images with my F/4.5 like my subjects are right in front of me sometimes.
01-30-2013, 01:58 PM   #28
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Chiane:
You should be totally confused by now....if not...this should do it !!

These are my longer than 55mm lenses:
Tamron 70 - 300 Di II.......cheap ($169 -199 new), sharp but can fringe in bright light situations according to some.....not my experience.
DFA 100 f2.8: Expensive....but good.
DA* 200 f2.8: Superb. If there is anything better, buy it. But expensive.
DA* 50-135 f2.8: Just below the 200 and on a par with the 100....but again...$$$$$. You will be frustrated by the reach though, which is where the 200 comes in.
Sigma 135 - 400: A bit of an enigma, can produce good images, but take your time. Big, heavy, but affordable if you hunt around. Not a lens for spontaneous kid photography.

As already said, it will come down to your budget and your planned usage. Personally, if the $$$ permit I would not look at anything that doesnt have f2.8 on the box.

Good luck.
02-04-2013, 11:17 AM   #29
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Thanks everyone for their suggestions. To follow up, I ended up buying a used Pentax F 70-210mm of the Pentax marketplace forum based on a recommendation from a member who shoots tons of long glass and has experience with many lenses and how they work on the K-01. The lens is sharp across the range, focuses really fast, and has great color. It's an inexpensive lens for me to start with and learn what I really need. That 70's retro look looks pretty cool with the k-01 as well. It's heavy, but fairly compact with a nice solid feel.

The only downside is it sounds like a power drill when finding focus. I may be the only one, but I am not a fan of the screw drive sound. I may eventually step up to the da 50-135mm down the road, but I can see always keeping this lens around. I think it's a sleeper!

This thread has lots of great suggestions and directions to go, so again, thanks everyone.
02-04-2013, 11:39 AM   #30
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QuoteOriginally posted by chiane Quote
...The only downside is it sounds like a power drill when finding focus. I may be the only one, but I am not a fan of the screw drive sound. I may eventually step up to the da 50-135mm down the road, but I can see always keeping this lens around. I think it's a sleeper!
I have two of these F70-210s, and one of them is the loudest AF lens I have ever used. I instinctively grip the camera tighter like it was a drill, so when it focuses, it doesn't twist my wrist off. Everything else about the lens is great, though.
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