[fgabriel]

Hi Guys
my k-5 with 40.000 shots going dead on image quality...

For some time now the images have appeared with a kind of blur, unfocused.
Not in all the images but the majority.
Tested in two lens, and the same.
I am confused, Kind of disappointed with digital pentax
I do not know what problem has the machine.

focus problem? anti-shake system?

someone could help identifying the problem?
thanks!

some original images





detailed

[Adam]

Same results in live view? If so, it could be the SR system. 40k is pretty decent mileage for a DSLR, servicing it might still be economical.

[MarkJerling]

Could you please post some images with the EXIF data intact?

[jpzk]

And is there a chance to see those images a little smaller?
(Edit; got them smaller now ... took a while to upload)

Do you have previous images that were sharp vs those you are showing here?
When did you start having the problem .... I mean, did it happen gradually ... ?

---------- Post added 05-14-17 at 09:55 PM ----------

Could you please post some images with the EXIF data intact?

That would help, for sure !

[fgabriel]

Same results in live view? If so, it could be the SR system. 40k is pretty decent mileage for a DSLR, servicing it might still be economical.

Hi Adam
I have not tried it yet. It's very rare to use liveview
gona try it

A little disappointed :/, I hoped it would last longer without any problems
in my canon era with a canon 40d I did 70000 shots without problems, then sold it to buy the k-5

gona find a service repair

---------- Post added 05-14-17 at 07:52 PM ----------

Could you please post some images with the EXIF data intact?

Hi Mark
The first three photos are original

1.º
[Image]
Make = PENTAX
Model = PENTAX K-5
Orientation = top/left
Software = Microsoft Windows Photo Viewer 6.1.7600.16385
Date Time = 2017-03-08 19:19:40
Artist = FERNANDO GABRIEL
Copyright = FERNANDO GABRIEL

[Camera]
Exposure Time = 1/3200"
F Number = F2.8
Exposure Program = Aperture priority
ISO Speed Ratings = 100
Exif Version = 30, 32, 33, 30
Date Time Original = 2017-02-05 11:31:40
Date Time Digitized = 2017-02-05 11:31:40
Exposure Bias Value = -0.3EV
Metering Mode = Pattern
Flash = Flash did not fire, compulsory flash mode
Focal Length = 32.5mm
Maker Note = 53248 Byte
Flashpix Version = Version 1.0
Color Space = sRGB
Exif Image Width = 3264
Exif Image Height = 4928
Sensing Method = One-chip color area sensor
File Source = DSC
Scene Type = A directly photographed image
Custom Rendered = Normal process
Exposure Mode = Manual exposure
White Balance = Auto white balance
Focal Length In 35mm Film = 49mm
Scene Capture Type = Normal
Contrast = Hard
Saturation = Normal
Sharpness = Hard
Subject Distance Range = Distant view

2.º
[Image]
Make = PENTAX
Model = PENTAX K-5
Orientation = top/left
Software = Microsoft Windows Photo Viewer 6.1.7600.16385
Date Time = 2017-05-15 00:47:39
Artist = FERNANDO GABRIEL
Copyright = FERNANDO GABRIEL

[Camera]
Exposure Time = 1/1600"
F Number = F2.8
Exposure Program = Aperture priority
ISO Speed Ratings = 200
Exif Version = 30, 32, 33, 30
Date Time Original = 2017-02-04 16:18:23
Date Time Digitized = 2017-02-04 16:18:23
Exposure Bias Value = +0.7EV
Metering Mode = Pattern
Flash = Flash did not fire, compulsory flash mode
Focal Length = 28.13mm
Maker Note = 53248 Byte
Flashpix Version = Version 1.0
Color Space = sRGB
Exif Image Width = 3264
Exif Image Height = 4928
Sensing Method = One-chip color area sensor
File Source = DSC
Scene Type = A directly photographed image
Custom Rendered = Normal process
Exposure Mode = Manual exposure
White Balance = Auto white balance
Focal Length In 35mm Film = 42mm
Scene Capture Type = Normal
Contrast = Hard
Saturation = Normal
Sharpness = Hard
Subject Distance Range = Distant view

3.º
[Image]
Make = PENTAX
Model = PENTAX K-5
Orientation = top/left
Software = K-5 Ver 1.16
Date Time = 2017-02-05 11:31:51
Artist = FERNANDO GABRIEL
Copyright = FERNANDO GABRIEL

[Camera]
Exposure Time = 1/2000"
F Number = F2.8
Exposure Program = Aperture priority
ISO Speed Ratings = 100
Exif Version = 30, 32, 33, 30
Date Time Original = 2017-02-05 11:31:51
Date Time Digitized = 2017-02-05 11:31:51
Exposure Bias Value = -0.3EV
Metering Mode = Pattern
Flash = Flash did not fire, compulsory flash mode
Focal Length = 45mm
Maker Note = 53248 Byte
Flashpix Version = Version 1.0
Color Space = sRGB
Exif Image Width = 4928
Exif Image Height = 3264
Sensing Method = One-chip color area sensor
File Source = DSC
Scene Type = A directly photographed image
Custom Rendered = Normal process
Exposure Mode = Manual exposure
White Balance = Auto white balance
Focal Length In 35mm Film = 67mm
Scene Capture Type = Normal
Contrast = Hard
Saturation = Normal
Sharpness = Hard
Subject Distance Range = Distant view

---------- Post added 05-14-17 at 08:09 PM ----------

And is there a chance to see those images a little smaller?
(Edit; got them smaller now ... took a while to upload)

Do you have previous images that were sharp vs those you are showing here?
When did you start having the problem .... I mean, did it happen gradually ... ?

---------- Post added 05-14-17 at 09:55 PM ----------



That would help, for sure !

Hi jpzk

I think it appears from nowhere.
I even thought it was from the lens. then tried another one and get the same.
It's been getting worse.

another image from the same day

[Image]
Make = PENTAX
Model = PENTAX K-5
Orientation = top/left
Software = Microsoft Windows Photo Viewer 6.1.7600.16385
Date Time = 2017-04-24 12:49:52
Artist = FERNANDO GABRIEL
Copyright = FERNANDO GABRIEL

[Camera]
Exposure Time = 1/500"
F Number = F7.1
Exposure Program = Aperture priority
ISO Speed Ratings = 100
Exif Version = 30, 32, 33, 30
Date Time Original = 2017-02-05 11:32:45
Date Time Digitized = 2017-02-05 11:32:45
Exposure Bias Value = ±0EV
Metering Mode = Pattern
Flash = Flash did not fire, compulsory flash mode
Focal Length = 45mm
Maker Note = 53248 Byte
Flashpix Version = Version 1.0
Color Space = sRGB
Exif Image Width = 3264
Exif Image Height = 4928
Sensing Method = One-chip color area sensor
File Source = DSC
Scene Type = A directly photographed image
Custom Rendered = Normal process
Exposure Mode = Auto exposure
White Balance = Auto white balance
Focal Length In 35mm Film = 67mm
Scene Capture Type = Normal
Contrast = Hard
Saturation = Normal
Sharpness = Hard
Subject Distance Range = Distant view

---------- Post added 05-14-17 at 08:14 PM ----------

the aperture was different in this one...hum...less light

---------- Post added 05-14-17 at 08:22 PM ----------



with f2.8 but a good one

some natural shake because the 1/60 speed

[Image]
Make = PENTAX
Model = PENTAX K-5
Orientation = top/left
Software = K-5 Ver 1.16
Date Time = 2017-02-05 13:06:29
Artist = FERNANDO GABRIEL
Copyright = FERNANDO GABRIEL

[Camera]
Exposure Time = 1/60"
F Number = F2.8
Exposure Program = Aperture priority
ISO Speed Ratings = 100
Exif Version = 30, 32, 33, 30
Date Time Original = 2017-02-05 13:06:29
Date Time Digitized = 2017-02-05 13:06:29
Exposure Bias Value = +0.7EV
Metering Mode = Pattern
Flash = Flash did not fire, compulsory flash mode
Focal Length = 45mm
Maker Note = 53248 Byte
Flashpix Version = Version 1.0
Color Space = sRGB
Exif Image Width = 4928
Exif Image Height = 3264
Sensing Method = One-chip color area sensor
File Source = DSC
Scene Type = A directly photographed image
Custom Rendered = Normal process
Exposure Mode = Manual exposure
White Balance = Auto white balance
Focal Length In 35mm Film = 67mm
Scene Capture Type = Normal
Contrast = Hard
Saturation = Normal
Sharpness = Hard
Subject Distance Range = Distant view

[Tas]

I'm not really sure what's going on here, but to determine the issue it would be best to undertake a process of elimination so you can discount or verify what could be contributing to this.

For the first images with the issue the shutter speeds and focal lengths do not require shake reduction. Try testing with it off and see if it makes a difference or not.
It appears to me that there could be a focus issue, if you were shooting with AF try manually focussing with the same lens to discount the AF unit as being a problem. If you were manually focussing try testing some lenses for back/front focus to see if they are still focussing correctly, particularly if you were using focus confirmation.

You've got a lot of experience with the K5 and maybe you've already tried these steps, but as others drop by to assist any feedback on what you've done to work out what's happening should help others making suggestions.

Good luck mate.

Tas

[DeadJohn]

Some additional thoughts:

Try a factory reset on the camera. There's a way to do that from the menus. I don't think ti would fix this problem, but it costs nothing to try.

Maybe the focus motor is working intermittently. Examine the mount contacts for dirt.

Photo #4 shows a lot of purple fringing. Lesser amounts soften photos, so I was wondering if maybe your lens was damaged, but you already said you are having the problem with multiple lenses.

[dbs]

I'm not really sure what's going on here, but to determine the issue it would be best to undertake a process of elimination so you can discount or verify what could be contributing to this.

For the first images with the issue the shutter speeds and focal lengths do not require shake reduction. Try testing with it off and see if it makes a difference or not.
It appears to me that there could be a focus issue, if you were shooting with AF try manually focussing with the same lens to discount the AF unit as being a problem. If you were manually focussing try testing some lenses for back/front focus to see if they are still focussing correctly, particularly if you were using focus confirmation.

You've got a lot of experience with the K5 and maybe you've already tried these steps, but as others drop by to assist any feedback on what you've done to work out what's happening should help others making suggestions.

Good luck mate.

Tas

Hi fgabriel

It seems to be just wrong choice of fstop.
The first ones are 2.8 for a landscape image the better ones are 7.1 .
Dave

[fgabriel]

I'm not really sure what's going on here, but to determine the issue it would be best to undertake a process of elimination so you can discount or verify what could be contributing to this.

For the first images with the issue the shutter speeds and focal lengths do not require shake reduction. Try testing with it off and see if it makes a difference or not.
It appears to me that there could be a focus issue, if you were shooting with AF try manually focussing with the same lens to discount the AF unit as being a problem. If you were manually focussing try testing some lenses for back/front focus to see if they are still focussing correctly, particularly if you were using focus confirmation.

You've got a lot of experience with the K5 and maybe you've already tried these steps, but as others drop by to assist any feedback on what you've done to work out what's happening should help others making suggestions.

Good luck mate.

Tas

Thanks for the tips Tas
I will test it whitout SR an without AF

---------- Post added 05-14-17 at 09:10 PM ----------

Some additional thoughts:

Try a factory reset on the camera. There's a way to do that from the menus. I don't think ti would fix this problem, but it costs nothing to try.

Maybe the focus motor is working intermittently. Examine the mount contacts for dirt.

Photo #4 shows a lot of purple fringing. Lesser amounts soften photos, so I was wondering if maybe your lens was damaged, but you already said you are having the problem with multiple lenses.

I already try the factory reset...even tried to find an old firmware but cant find one.

I will revise the AF mount contacts.

Yes i notice that fringing...thinking more about kind a"sensor light filter" cause the worst results about this problem came with high lights
Thanks DeadJohn

---------- Post added 05-14-17 at 09:17 PM ----------

Hi fgabriel

It seems to be just wrong choice of fstop.
The first ones are 2.8 for a landscape image the better ones are 7.1 .
Dave

Hi Dave
I think the problem here Is the horrible results in high lights. The blured and glow results.
Never notice nothing like this with my k-5 and this lenses before.
Thanks

[Unregistered User 8]

Hi Fernando. Another thing that you might check is whether the AF is set to AF-C or AF-S. If set to AF-C with release priority, the shutter will fire if the subject is not in focus. If set to AF-S, the shutter will only fire when in focus. Hope this is of help.

[fgabriel]

Hi pjv
The AF Is almost of the time or all the time in AF-S. I used the AF-C only a fiew times.
Thanks
Entering in test mode...

[fgabriel]

Hi guys
The problem Is identified !
Just take a little observation and yours precious tips.
It's really the AF. It's lazy...
Sometimes don't work
Well...could be worst uffff
I will try to clean it or take it to a repair service. Maybe take it to a service

Thanks to all !!
Regards
Fernando

[sp500]

Are you using any filters on you lens? If so remove the filters and try again.

[DutchGonzo]

Why shutterspeeds of 1/3200,1/2000? With een F2,8 your depth of field s very shallow. Make it at least F5,6 or more. Just an idea, good luck.

[kotofei]

Your camera demand AF sensor cleaning. Do it yourself with blower AND brush.