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03-16-2011, 04:23 PM   #16
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QuoteOriginally posted by ccd333 Quote
I appreciate your interpretation (and am glad you feel otherwise about the K'r AF).....but I was simply stating that the predominant responses (of those who had an actual opinion about its accuracy specifically) were of the mind that the AF was inaccurate. So maybe consensus was too strong a word as it relates to the AF in general.....but just having that many users state this is at least somewhat alarming. No, you can't always verify the creedance of each photographer and their experiences.....but I don't think it wise to wholly dismiss their comments either. It's not like just one renegade user stated this....and I think it can be counterproductive to entertain a notion that because someone states something someone else believes to be untrue for them, that they necessarily are misinformed, incompetent, or have an axe to grind. They very well could be having a different experience with their particular camera.

I try to use the internet as a tool to evaluate a decision. And to that end, it's a valuable resource at the margin. I try to weigh the "expert" analyses and the anecdotal responses.....then formulate my own consensus if possible. Yes, ultimately you have to try something out yourself to see what might work for you (and I intend to do that). But there would seem to be some value in striking a balance between a grain of salt approach.....and a wide-eyed gullibility.
You have at least half a dozen K-r users here telling you the AF is great, not to mention many pro reviews saying the same.

There is an issue with AF in Tungsten light (old school lightbulbs) aside from that it is very fast and very accurate and a bit noisy.

I dont think the K-r has any predictive or tracking with its AF.

DPReview itself says:
"Focus accuracy did not leave any reason for complaint and is, in decent light, generally spot on. In low light and low contrast situations the focus can slow down and occasionally hunt a little, but it's all well within acceptable limits and on a par with the direct competition."

03-16-2011, 04:24 PM   #17
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From my experience with various make of AF & MF lenses, the general focusing speed & accuracy is K5 > Kr > K7.
03-16-2011, 05:44 PM   #18
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GrinMode.....thanks for posting all of those sections about the AF. I really appreciate it. The Steve's Digicams reference to the defaulting to 5 point makes we wonder if some might be having mixed results because of it.

Why do you think the FF hasn't been mentioned in any of the reviews since the problem was noticed?
03-16-2011, 05:54 PM   #19
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QuoteOriginally posted by Deimos Quote

DPReview itself says:
"Focus accuracy did not leave any reason for complaint and is, in decent light, generally spot on. In low light and low contrast situations the focus can slow down and occasionally hunt a little, but it's all well within acceptable limits and on a par with the direct competition."
Well, that's what I mean. I read similar reviews like that before buying.

QuoteOriginally posted by Deimos Quote
You have at least half a dozen K-r users here telling you the AF is great, not to mention many pro reviews saying the same.[/B]."
I understand, and it helps me to have confidence in the K-r. I never lost it, I'm just asking for feedback.

QuoteOriginally posted by Deimos Quote
I dont think the K-r has any predictive or tracking with its AF.[/B]."
So how effective is the catch focus?....moving the lens switch to manual and allowing the subject to run into the zone where it then snaps the photo. How does that compare to the "predictive" AF setting on the 5000?

03-16-2011, 05:56 PM   #20
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QuoteOriginally posted by ccd333 Quote
GrinMode.....thanks for posting all of those sections about the AF. I really appreciate it. The Steve's Digicams reference to the defaulting to 5 point makes we wonder if some might be having mixed results because of it.

Why do you think the FF hasn't been mentioned in any of the reviews since the problem was noticed?
Welcome .

In another thread (Steve's Digicams' review I think), I mentioned that they probably did not get the condition in which the problem occurs. Although most sites like these do really controlled tests.

Or they probably think it is well within the margin of error that affects DSLRs of these class.

Of course Ursamajor (or others) would contend Canon doesn't have this problem.

Bottom line, I only have speculations on why they don't encounter (or mention) the FF problem.
03-16-2011, 06:27 PM   #21
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QuoteOriginally posted by ccd333 Quote
So how effective is the catch focus?....moving the lens switch to manual and allowing the subject to run into the zone where it then snaps the photo. How does that compare to the "predictive" AF setting on the 5000?
Hmm I think that works actually havent tried it. Catch in focus does work great though otherwise for the most part. I think some user on here setup his camera on a tripod and focused to a certain distance and whenever he walked in front and was focused it snapped a photo. I have no idea which thread I read that in.

Honestly I can say that you will likely not be disappointed by the K-r *unless* you shoot a lot in Tungsten and dont want to manually focus or use Live View.

I am continually impressed by mine. Especially the ability to use older lenses out of the box with modern joys like OS/SR, Green Button metering and catch in focus.
03-16-2011, 07:39 PM   #22
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QuoteOriginally posted by GrinMode Quote
Welcome .
Thanks. This is a cool place. Not as cynical as some other forums (for the most part), and it seems that most try to constructively discuss things here.

QuoteOriginally posted by GrinMode Quote
In another thread (Steve's Digicams' review I think), I mentioned that they probably did not get the condition in which the problem occurs. Although most sites like these do really controlled tests.

Or they probably think it is well within the margin of error that affects DSLRs of these class.
The latter is what I think too. I have seen the FF issue mentioned in other forums for other camera brands.

QuoteOriginally posted by GrinMode Quote
Of course Ursamajor (or others) would contend Canon doesn't have this problem.
I think there are certain people who you can tell just have the proverbial axe to grind. They may have some valid points, but it's all in a context of bitterness.....so I try to discount their gratuitous bleatings. It's often more important to see where one sits before you see where they stand.

QuoteOriginally posted by GrinMode Quote
Bottom line, I only have speculations on why they don't encounter (or mention) the FF problem.
Good enough for me! If I can respect someone's arguments for something, I will listen to something speculative even if it isn't always based on unequivocal facts. Sometimes in lieu of all information that may not be available, that's all you have. So much of what you read is subjective (and therefore in a sense speculative) anyway.
03-16-2011, 07:41 PM   #23
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QuoteOriginally posted by Deimos Quote
Hmm I think that works actually havent tried it. Catch in focus does work great though otherwise for the most part. I think some user on here setup his camera on a tripod and focused to a certain distance and whenever he walked in front and was focused it snapped a photo. I have no idea which thread I read that in.

Honestly I can say that you will likely not be disappointed by the K-r *unless* you shoot a lot in Tungsten and dont want to manually focus or use Live View.

I am continually impressed by mine. Especially the ability to use older lenses out of the box with modern joys like OS/SR, Green Button metering and catch in focus.
I hardly ever shoot in Tungsten. All of this sounds good....thanks again.

06-10-2011, 08:56 AM   #24
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I have a K-X, which has been bugging me with autofocus - inconsistent. I tried a friend's new K-R yesterday - same subject, same lens, same time of day (late afternoon, subject in shade, taken with 300mm telephoto) - result - K-R focused significantly faster, hardly any hunting and was consistently accurate, as compared to the K-X. She is a newbie and all her long range telephoto shots (300mm) were sharp - subjects were in sun and in shade.

The difference is so substantial that I'll probably upgrade to the K-R - the bigger and better screen is also a plus. I have zero doubt that it is much improved over the K-X.
06-10-2011, 01:38 PM   #25
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I can now follow up on my own question. I purchased the K-r and love it. The AF is blazing fast compared to my *istDL. It hunts a lot less often and is very accurate as well. I couldn't be happier.
06-13-2011, 12:53 AM   #26
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We should always keep in mind that what lens are we talking about

- Kit lens: yes, its loud and noisier. AF is reasonably fast with Kit lens. I have found no issues till now. I have dual kit lens 18-55 and 50-200mm

- SDM lens: This should be definitely Quieter and faster than the kit lenses. I have used this from friend of mine and I do see significant difference in AF.

I have used Canon T2i and Nikon D5000. In daylight, you wont notice any difference in AF performance but in low light K-r is better. I personally dont like flash strobes used in low light (cannon) Its kind of irritating.
06-25-2011, 11:10 PM   #27
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I'll tell you right now the AF is shit. I use a tripod and lock down befor a shot. Even in low light in daylight I have had very bad misses. Focus confirmes and fires but just too far out to use. Using spot or center weighted and on a tripod. Fast glass is a joke on mine. That's with a K-5 not a K-r tho I was going to try a K-r but now after moving to this thread about the K-r No way. It seemes to be worse than the K-5. In my opinion the K-5 is a consumer grade below par camera. In a pro body.
06-30-2011, 03:36 AM   #28
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I all ways use the center point AF and works every time.
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