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08-11-2009, 12:32 PM   #16
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QuoteOriginally posted by xxxxx Quote
I'm thinking of selling 200mm and getting the pentax 1.7x teleconverter. With it, my 50-135mm would be 85-230mm, and supposedly with little loss in IQ.

Another way I'm thinking of is to buy 60-250mm and selling both 50-135mm and 200mm.

What do you guys think? The first option seems cheaper and even more flexble as I still have a fast 2.8 lens for low light.

Keep the DA* 50-135mm, sell the DA* 200mm and buy a DA* 60-250mm.
The 1.7x TC and 50-135mm combo is nowhere near as good as the 60-250mm (which is turning out to be one of my most used lenses).

08-11-2009, 12:36 PM   #17
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QuoteOriginally posted by axl Quote
If you will beselling DA*200 let me know please. Fortheright price I might be really interested!
On other note, why dont you keep both and just get good 1.4 or 1.5 TC? With 200 itwould give you 300/4.
That'stheway how I'm planning to sort out my long end.

Br
Peter
Sure will let you know. Any good TC to recommend? Seems the only one from Pentax is this old 1.7X TC? I also remember sometime last year Pentax release a new DA 1.4X (or they claimed they would release). I can't seem to find any information on this. See this link for the announcement.
08-11-2009, 12:38 PM   #18
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QuoteOriginally posted by Mike.P Quote
Keep the DA* 50-135mm, sell the DA* 200mm and buy a DA* 60-250mm.
The 1.7x TC and 50-135mm combo is nowhere near as good as the 60-250mm (which is turning out to be one of my most used lenses).
Between 50-135mm and 60-250mm, is it worth to keep both?
08-11-2009, 02:33 PM   #19
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QuoteOriginally posted by xxxxx Quote
Between 50-135mm and 60-250mm, is it worth to keep both?

I did, 50-135mm f2.8 for inside shots/portrait etc .. 60-250mm for outside, sharp at f4 and just a brilliant lens imo.

08-12-2009, 08:12 PM   #20
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To the original poster - and anyone else in a similar situation - here's another suggestion: The Sigma 70-200mm f/2.8 lens runs $799 at B&H photo:

Sigma | 70-200mm f/2.8 II EX DG APO Macro HSM AF Lens | 579109

And the Sigma 2x teleconverter for this lens runs $299:

Sigma | 2x EX DG APO Teleconverter for Pentax AF | 876109 | B&H

That's $1098 total and you have a 70-200mm f/2.8 lens with HSM autofocusing when you need or want it. On a Pentax DSLR with an APS-C sensor, that's the equivalent of 105-400mm.

Now... when you need extra range for wildlife, etc, you use the 2x teleconverter, which gives you 140-400mm - or a full-frame equivalent of 210-600mm at f/5.6 (which is still just a tick faster than the Pentax 55-300mm at full telephoto). That's a very flexible package for at least $200 less than the Pentax 60-250mm lens ($1299 as of today at B&H), which is always at f/4.

Don't want to spend that much if you're not actually buying the 60-250? Fine: Tamron's 70-200mm f/2.8 lens is $679 at B&H:

http://www.bhphotovideo.com/c/product/539403-REG/Tamron_AF001P_700_70_200mm_f_2_8_Di_LD.html

The Tamron doesn't have HSM autofocusing but its screw-type drive is a bit faster on modern Pentax bodies - just not as quiet. And you can pair it with Kenko's better 2X teleconverter that runs $149:

http://www.bhphotovideo.com/c/product/389051-REG/Kenko_MC7AF_DGPK_2x_DG_AF_T....html#features

That's a total outlay of $828 with the same lens speeds and focal range as the Sigma kit above. Not too shabby.

Now, I make this recommendation as the happy owner of the Pentax 55-300 lens. For the price, it can't be beat. I have the 50-135 f/2.8 as well. Would I like a 60-250mm f/4? Sure. But I might very well opt for one of the packages I suggested above and put the extra money toward the future purchase of a Pentax 12-24 f/4 or one of the many primes I covet. Ain't LBA fun?

Last edited by Biro; 08-12-2009 at 08:54 PM.
02-15-2010, 02:55 AM   #21
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Unfortunately, the Sigma 70-200mm didn't get a very strong outlook from dpreview.

Just decent image quality
Weak 200mm
Unconvincing macro
CA in bokeh

But the Tamron did very well!
I wonder how it stacks up against the 55-300 though?
Might make it redundant.
02-15-2010, 06:53 AM   #22
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I compared the 60/250 to the 55/300 using mtf data from photozone.de

60/250 @ 250:5.6 center 2078 lpph
55/300 @ 300:5.8 center 1769 lpph

So at full zoom, the 60/250 appears sharper BUT at the same image size on the print, it would have to be enlarged by a factor of 1.2 so the 55/300 is sharper by that measure.
02-15-2010, 08:33 AM   #23
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IMO the 50-135 is just too short for birding/nature. I've been using it a few years now and, more often than not, I wish I had something longer. It is a great lens though.

I've been trying to decide between the DA* 60-250 and the Sigma AF 100-300mm f/4. Photozone reviewed the Sigma (Nikon mount) and it looks very good.

I've had my kit soaked so many times I'm about to pull the trigger on the 60-250, but if the Sigma was sealed I'd have already ordered it.

02-15-2010, 08:57 AM   #24
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Dylasalt, the exif tells me tha this was shot at 300mm at f9 and 1/500. This is one of the few zooms I like (that I've tried).

QuoteOriginally posted by dylansalt Quote
An extremely versatile lens is the 55-300 and can be used comfortably wide open over its whole range as can be seen below @ 300mm wide open



Now lets look at the price here in SA - 55-300 (R 5000) / 60-250 (R19 000 wtf??)

Personally I am not willing to pay such a hefty premium for "maybe" a 20% increase in IQ and less portability.

Dylan
02-15-2010, 09:17 AM   #25
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Well, I bought both lenses in one deal. (I suffered from a serious attack of LBA then! )
And well, if you are prepared to pay for the 60-250mm, the extra cost of a 55-300 is marginal...
First I did a lot of test street shooting with both lenses. And did all the pixel peeping at home before buying.
The 55-300mm is good, however the 60-250mm is clearly better. Corner to corner sharp wide open!

Walking all day I'll take the 55-300mm, it is light and small.
If carrying is limited to an hour or so, I go for the best and take the 60-250mm.

At first I used TC's on the 60-250mm to make it longer, however the (small) IQ loss of a TC is comparable to cropping in my experience.
You've got enough pixels there, so I save myself the TC/lens changes by cropping now.
02-15-2010, 09:37 AM   #26
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QuoteOriginally posted by creampuff Quote
Another factor to consider is that lenses with SDM have the edge in not spooking shy animals. The DA 55-300mm can and does hunt on occasion, and that screw drive sound has startled some animals in quiet settings from my experience.
I ended up switching to manual focus the last time I tried to stalk a bird with the 55-300 for just that reason. On the other hand, for the price difference a little manual focus is not a terrible option.
02-15-2010, 11:43 AM   #27
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QuoteOriginally posted by bymy141 Quote
At first I used TC's on the 60-250mm to make it longer, however the (small) IQ loss of a TC is comparable to cropping in my experience.
You've got enough pixels there, so I save myself the TC/lens changes by cropping now.
I have a 55-300 and tried a 60-250 in the store. I could immediately see that the 60-250 has special IQ. I wonder though about range. I heard the 60-250 is an IF lens and loses range as the subject gets closer. My 18-250 does this, at 9m (30 feet) it's equivalent to the 55-300 at 200mm. Have you noticed this with the 60-250?
02-17-2010, 03:49 PM   #28
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QuoteOriginally posted by audiobomber Quote
I have a 55-300 and tried a 60-250 in the store. I could immediately see that the 60-250 has special IQ. I wonder though about range. I heard the 60-250 is an IF lens and loses range as the subject gets closer. My 18-250 does this, at 9m (30 feet) it's equivalent to the 55-300 at 200mm. Have you noticed this with the 60-250?
I have not noticed this yet.
Let me do some experiments next weekend.

- Bert
02-17-2010, 04:37 PM   #29
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I've got the 55-300..it is sharp. I would recommend it.
02-17-2010, 07:54 PM   #30
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QuoteOriginally posted by bymy141 Quote
I have not noticed this yet.
Let me do some experiments next weekend.

- Bert
Thanks, I would love to know.
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