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10-31-2010, 10:04 AM   #1
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The Darned 50mm Split ...

As much as I like my 50-135 and DA 16mm - 50mm - I keep running into the 50mm split. If I've got the 50-135 on and just walking around, I'm constantly going, "Crap!! I need less than 50mm for this shot". If I put the 60-50 on, the "Crap! I need 60mm for THIS shot!".

Trying to stay with Pentax, but is there anything (current or not) *fast* that covers 20 to 70 or so that's close image quality wise to the two DA's above?

Yea, I can get another Tamron SP 28-75mm or maybe the Sigma 24 - 70mm - but I'm trying to keep my system "pure" at this point.

Suggestions? Or am I sol and need to look at others? If forced to look at others, then I'm not opposed to old stuff, maybe even manual focus, Russian glass - whatever - long as it's nice and sharp..

10-31-2010, 10:07 AM   #2
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DA17-70/4 is pretty good in image quality, though it's a bit slower (f/4 is enough for walkaround I think). It covers your range though, and you can get it at around the price of $325-375 - similar to Tamron 28-75.
10-31-2010, 10:25 AM   #3
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Try using primes like they did in the good ole' days and I still do. That's an even bigger split!
10-31-2010, 10:31 AM   #4
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Grab a second body. Keep the 50-135mm on one and the 16-50mm on the other. Far faster than changing lenses. Just drop one camera and pick up the other.

10-31-2010, 10:32 AM   #5
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Totally agree Les. I've got the Sigma 17-70 f2.8-4.5 which I love - but I would love more a DA* 17-70 f2.8
10-31-2010, 10:33 AM   #6
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QuoteOriginally posted by LesMizzell Quote
but I'm trying to keep my system "pure" at this point.
Blind brand royalty sucks! And btw that Tamron you meantioned is not bad at all optically :P
10-31-2010, 10:37 AM   #7
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How about the FA 28-70 1:2.8:

SMC Pentax-FA* 28-70mm F2.8 AL Lens Reviews - Pentax Lens Review Database
10-31-2010, 11:46 AM   #8
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I have a sigma 70-200F2.8 and the tamron 28-75 F2.8

A lot of trips I find I leave the 70-200 at home and take only the Tammy and my sigma 10-20. If I think I might want a little medium tele I will take my K135F2.5 or my vivitar 85/1.4 and the AF1.7x adaptor

The 70-200 is used only for wild life or other tele needs

Maybe a poll is needed as to where splits in the zoom range should be

10-31-2010, 11:55 AM   #9
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QuoteOriginally posted by ilya80 Quote
Blind brand royalty sucks! And btw that Tamron you meantioned is not bad at all optically :P
It depends on if you want to keep a similar look throughout your lens line up.
This may not matter to you, but it does matter to some people.

Having several different brands of lenses, all with discordant imaging characteristics really sucks.
10-31-2010, 12:29 PM   #10
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The tamron and the pentax 28-80 are recommendable both. Just two things to point out: the pentax is expensive, not that easily available, and worth it. The tamron is quite cheap, easily available new, and it's a great performer. There's a thread that compares both, you should check it out.

The FA* 28-80/2.8 which is the closest to the specs in recent Pentax glass is really close in rendering to the Tamron version, with advantage on the side of the FA*.

Sometimes a discordant appearance can make a variety to your pics, and that's not bad most of the time.
10-31-2010, 12:34 PM   #11
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Having split decisions with zooms.... I'd love to watch you on an outing with my line up
---
on the fair note... There isn't anything current from Pentax that would cover the range you want and would be fast.
The closest you get is DA17-70/4 or the new DA18-135 with variable and slow f stop....
and as tongue in cheek: DA18-55 which ever version it gives you 5mm leeway.....
As a side note: DA*50-135 is actually wider than 50mm IMHO. When I used to have it I compared it to DA40 and F50/1.7 I had in those days and on anything indoors the DA* was much closer to 40 than 50 in terms of FOV....
10-31-2010, 05:43 PM   #12
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If I'm looking at third party lenses, any one have experience with the Tokina AT-X270 AF 28-70mm f/2.8?
10-31-2010, 06:03 PM   #13
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I used to have the Tamron 28-75/2.8, but found the 28mm not wide enough. So I sold it. Better the 17-70mm
10-31-2010, 06:07 PM   #14
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QuoteOriginally posted by LesMizzell Quote
As much as I like my 50-135 and DA 16mm - 50mm - I keep running into the 50mm split. If I've got the 50-135 on and just walking around, I'm constantly going, "Crap!! I need less than 50mm for this shot". If I put the 60-50 on, the "Crap! I need 60mm for THIS shot!".

Trying to stay with Pentax, but is there anything (current or not) *fast* that covers 20 to 70 or so that's close image quality wise to the two DA's above?

Yea, I can get another Tamron SP 28-75mm or maybe the Sigma 24 - 70mm - but I'm trying to keep my system "pure" at this point.

Suggestions? Or am I sol and need to look at others? If forced to look at others, then I'm not opposed to old stuff, maybe even manual focus, Russian glass - whatever - long as it's nice and sharp..
Take a look at my lens list by clicking the link in my sig below. Trust me when I tell you that unless you have an 8-800 mm zoom, that Split will always exist. Having different lenses, just moves the split point.

10-31-2010, 06:20 PM   #15
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The question I think is not so much a split but in an overlap that way you have a little latitude but all the same my own experience is that I can get by 95% of the time, perhaps more with my 10-20 and my 28-75 when I am city bound. So much so that this year on a 10 day trip to Prague Budapest and Vienna I took those two lenses, a fisheye and my 85/1.4 and that was all. The big advantage I had was two bodies a K10 and K7.
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