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05-10-2010, 01:56 AM   #1
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Build quality of Pentax Limited lenses?

I'm being presented with a good opportunity to purchase two DA limited lenses at a good price.

I've heard a lot of good words on those lenses but how about the probability that they will fail after a given period? Does anyone have any numbers on life expectancy of those lenses given a normal usage?

05-10-2010, 02:06 AM   #2
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I doubt they'd fail you during use- or at least before a full-frame comes out They have a solid yet simple metal construction and aren't prone to as much wear and tear due to their small size.

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05-10-2010, 02:12 AM   #3
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In terms of longevity, they should outlast you under proper use. But in terms of built, FA limteds are definitely a notch better. The A50 f1.2 is yet even better than the FA limiteds though.
05-10-2010, 05:24 AM - 1 Like   #4
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Don't take them, they are bad lenses, send me the contact details of the seller, I like to collect junk.

05-10-2010, 05:53 AM   #5
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Looks like a GO! Thanks all!
05-11-2010, 07:48 AM   #6
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Got both DA 40 & 70 Limited today in mint condition for under $550.

Will take both out for a ride this week-end, can't wait!
05-11-2010, 08:06 AM   #7
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QuoteOriginally posted by ducdao Quote
Got both DA 40 & 70 Limited today in mint condition for under $550.

Will take both out for a ride this week-end, can't wait!
great price for two of them together IMO
As for their quality, I wouldn´t be worried. I was tossing my 40ltd around everywhere for 2 years before I sold it. It withstood any kind of punishment you can think of as "normal circumstances"... rain, snow, being carried/hit in non camrea (read not padded) bag... etc. The lens was stil fine when I was selling it and I got for it more than when I bought it new

anyway, congrats and enjoy
05-11-2010, 08:46 AM   #8
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QuoteOriginally posted by Adam Quote
I doubt they'd fail you during use- or at least before a full-frame comes out
Are you implying that they will NEVER fail? Awesome.

05-11-2010, 12:14 PM   #9
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QuoteOriginally posted by hangu Quote
are you implying that they will never fail? Awesome.
lol
05-11-2010, 12:18 PM   #10
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I can't imagine one of them failing. But that's the fact for all non-IS scew drive of manual lenses made of metal. Like the precious DA14.
05-11-2010, 03:05 PM   #11
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QuoteOriginally posted by ducdao Quote
Got both DA 40 & 70 Limited today in mint condition for under $550.

Will take both out for a ride this week-end, can't wait!
Wow! Fantastic price for those lenses. I had the DA 70 Ltd and it was excellent. The build was first-rate, and optically a gem. It has a quality SD focus mechanism with quick shift. I'll bet those Ltds will last well beyond your interest in photography without missing a beat.

The DA Limiteds are fantastic lenses and should last "forever." It is the DA* lenses we would have an argument about...

Last edited by PentaxPoke; 05-11-2010 at 03:19 PM.
05-11-2010, 08:01 PM   #12
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QuoteOriginally posted by elho_cid Quote
I can't imagine one of them failing. But that's the fact for all non-IS scew drive of manual lenses made of metal. Like the precious DA14.
I know the build quality of the manual lenses is excellent. But my initial concern about the DA limited was because unlike manual lenses, they are auto focus lenses hence they have electronic components and I think those are generally the weakest links.
05-11-2010, 08:04 PM   #13
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QuoteOriginally posted by PentaxPoke Quote
Wow! Fantastic price for those lenses. I had the DA 70 Ltd and it was excellent. The build was first-rate, and optically a gem. It has a quality SD focus mechanism with quick shift. I'll bet those Ltds will last well beyond your interest in photography without missing a beat.

The DA Limiteds are fantastic lenses and should last "forever." It is the DA* lenses we would have an argument about...
I just realized on on the back of both lenses, there is a small print saying "Assembled in Vietnam". Were there any DA limited lenses assembled in Japan?
05-11-2010, 08:32 PM   #14
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QuoteOriginally posted by ducdao Quote
Got both DA 40 & 70 Limited today in mint condition for under $550.

Will take both out for a ride this week-end, can't wait!
That is a good price for both limited edition lenses.
As for their quality, I wouldn´t be worried as the Limited lens built is normally better than the normal lens.
Most Pentax lenses in the last 3 years were made either in the Philipines or Vietnam.
05-12-2010, 01:54 PM   #15
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QuoteOriginally posted by ducdao Quote
I know the build quality of the manual lenses is excellent. But my initial concern about the DA limited was because unlike manual lenses, they are auto focus lenses hence they have electronic components and I think those are generally the weakest links.
This would be more of a concern for lenses that actually have motors in them. The DA Limited lenses, like most Pentax AF lenses (except those few with SDM) do not. Their electronics are basically no more sophisticated than those of "A" series manual focus lenses: they communicate aperture info to the body via a series of electrical contacts. OK, they also communicate focal length and MTF info, but still, it's not like we're talking about high-precision moving parts that are controlled electronically by the lens - they are still essentially mechanical devices.
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