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K-5IIs: K-5 Front focus in low light issue solved by SAFOX X
- Thread starter Ryutan
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- pentax k-5 pentax k-5 iis
Maxeyesore
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Awesome news. I remember not too long ago the trolls had only one thing to spam here and that was the focus issues. It sounds like the only real weakness of the K5 was brought up big time, I can't wait to get the call to pick mine up. I read today that the only camera to match the -3EV is the 6D, which is $2000 of course. Pentax is going to put the other brands on their heads.
I wonder how much was LL issue and how much mis-calibration.?
Having had my k5 mis-configured in service it exhibited exactly the 'issues' some complain about that is OK in daylight and at sixes and sevens under red light.
With a fast lens on it was obvious the AF module was not calibrated and was far enough out to require debug tuning to pull it in. (100uM)
Once tuned AF accuracy was back, fast accurate in all light temperatures.
The AF seems to be get it close and it'll pull in , but if not close then its all over the shop.
I think it probably the focusing algorithms give a penchant to hit focus so if it can it will but once outside a set correction factor it has no chance.
No excuse for cameras being released mis-calibrated but does explain the different experiences users have with the K5.
Having had my k5 mis-configured in service it exhibited exactly the 'issues' some complain about that is OK in daylight and at sixes and sevens under red light.
With a fast lens on it was obvious the AF module was not calibrated and was far enough out to require debug tuning to pull it in. (100uM)
Once tuned AF accuracy was back, fast accurate in all light temperatures.
The AF seems to be get it close and it'll pull in , but if not close then its all over the shop.
I think it probably the focusing algorithms give a penchant to hit focus so if it can it will but once outside a set correction factor it has no chance.
No excuse for cameras being released mis-calibrated but does explain the different experiences users have with the K5.
For new customers buying into Pentax it may be great news, but for existing users of a K-5 it is asinine. This would be like having to spend another $1200.- to get your focus issues sorted. Silly little incremental upgrades. I had the money and bought into a D600. No more flash issues, no more focus issues, no more full frame issues. I finally have the camera I always wanted. It will last me a long time. That's my take on this whole Pentax thing for now.
Lets hope the d600 isn't plagued with the same issues the d7000 and d800 were.
Whoops spoke to soon
Catalana wrote:
Whoops spoke to soon
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Wheatfield
Veteran Member
My K5 is all over the place under studio modelling lights. If I leave the calibration at the same place I have it with daylight, I need to be stopped down to f/8, and I can't shoot anything but full body shots if I want to secure focus via DOF, and even this is no guarantee.
If I set the calibration to -10 or so, the focus hits about 30% of the time, the rest of the time is a combination of front focus and back focus.
Given how inconsistent my results are, and given how some people seem to have no complaints, others have some, and some, like me, find AF on the camera well nigh useless unless the light is good daylight, I'm of the opinion that Hoya went to the lowest bidder on every component that went into the K5, and some cameras are OK, and some are just wildely out of spec with no hope whatsoever of making the camera right.
To me, the K5II series (providing it lives up to it's specificatins) is the camera the K5 should have been if Hoya hadn't been squeezing every possible dime out of Pentax to make the division look more profitable than it really was in the hope of attracting a buyer.
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S
SBS
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Ian Stuart Forsyth
Veteran Member
Benjamin Kanarek
Veteran Member
HEAR!!!! HEAR!!!!!!!!!! :-( Grrrrrr!
Benjamin Kanarek
Veteran Member
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Same here.
Awaldram is known to post blurry photos heavily sharpened in PP and downsized to 600x400 resolution to prove the perfect performance of his AF. Other may use K5 mostly for landscape shooting. I guess your style is different which explains results, and the problem indeed exists.
It takes more than a single post to proof that problem does not exist with K5II.
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You mean it is capable again of producing photos like this?
http://www.dpreview.com/galleries/8846246919/photos/2025616
I remember you posting this as an ultimate proof of the perfect AF of your K5 and for me it proves that your camera has the same issue as other K5 copies on the market and we have different definitions of what a sharp photo is.
No it doesn't. Sorry to disappoint you, but your idea of eliminating the color dependency of Pentax AF by a single one-time AF correction is not confirmed by anyone else. And it didn't work with my copy of K5.
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Ian Stuart Forsyth
Veteran Member
Under studio lights it was not a real problem for me or I just never noticed it, it was when I was out doors. For that days shoot I would have to calibrate, I just ran it in debug mode all the time and calibrated on the go (you lose IS and video)
My would be consistent until I would get a shift half way thru the day
bingo (NT)
Looks like the only working copy of properly focusing K5 was sold to awaldram; professionals like you are stuck with the bad ones.
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Cheers,
Alex
Truly pathetic
taking pot shots at me wont make you a better photgrapher
buying a bigger camera wont work either, note how many who have are trying to justify themselves in this forum.
If you cant enjoy your hobby without trying to dengrate others I suggest you sell your equipment and take up knitting .
probbably more suited to you mentality
nope, actually having fun
No it's a proof that your claims of the camera's focusing abilities are not aligned with the photos you post to back up your claims. This has nothing to do with K5, low light or day light.
What? The fact that even a pro like Benjamin Kanarek is forced to shoot manual with K5 and you still pretend that there is nothing wrong with Pentax AF? That's not pathetic, that's simply ridiculous.
il_alexk wrote:
nope, actually having fun
No it's a proof that your claims of the camera's focusing abilities are not aligned with the photos you post to back up your claims. This has nothing to do with K5, low light or day light.
What? The fact that even a pro like Benjamin Kanarek is forced to shoot manual with K5 and you still pretend that there is nothing wrong with Pentax AF? That's not pathetic, that's simply ridiculous.
From the tests I performed last time we chatted on this I think the general behaviour of our cameras is similar but forsome reason mine keeps consistent deeper into the spectrum than yours.Given you shoot predominately in this enviroment I feel your pain. I agree there variablity is not good enough and needs resolving.
I agree there variablity is not good enough and needs resolving.Edvinas
Veteran Member
Well, Canikon pro shooters have extremely high expectations regarding AF. Ask those who complain about D600 AF-C to evaluate Pentax AF. They would not just complain. They would be shocked and horrified. I am sure that Pentax users would be extremely happy having the same AF-C performance about which this Nikon user is complaining about.
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