Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
04-29-2015, 11:09 AM   #1
Senior Member




Join Date: Sep 2010
Posts: 149
k5 iis and 16-45 overexposure

Hello.

I was unofficial photographer of bike race and lot of pictures came out like this. First one is good and second is not.




Exif is same (f 6.3, iso400).

I didn't realized i had one big stain on lens (i guess i spill it with iso drink).

Today i tested camera and took 250 photos and everything is fine. What do you think ? I hope is just drink lol

Second glitch is camera resets aperature when is off to f 8.0 - not always but sometimes.

Camera is still under warranty.

04-29-2015, 11:15 AM   #2
Site Supporter
jatrax's Avatar

Join Date: May 2010
Location: Oregon
Photos: Gallery | Albums
Posts: 10,288
No EXIF so it is hard to tell. What metering mode were you using?
04-29-2015, 11:31 AM   #3
Senior Member




Join Date: Sep 2010
Posts: 149
Original Poster
Multi segment metering.

First:

Filename - 2.jpg
Make - PENTAX
Model - PENTAX K-5 II s
Orientation - Top left
XResolution - 300
YResolution - 300
ResolutionUnit - Inch
Software - K-5 II s Ver 1.07
DateTime - 2015:04:25 08:49:10
Artist -
YCbCrPositioning - Co-Sited
Copyright -
ExifOffset - 706
ExposureTime - 1/1000 seconds
FNumber - 6.30
ExposureProgram - Aperture priority
ISOSpeedRatings - 400
ExifVersion - 0230
DateTimeOriginal - 2015:04:25 08:49:10
DateTimeDigitized - 2015:04:25 08:49:10
ComponentsConfiguration - YCbCr
ExposureBiasValue - 0.00
MeteringMode - Multi-segment
Flash - Flash not fired, compulsory flash mode
FocalLength - 21.00 mm
FlashPixVersion - 0100
ColorSpace - sRGB
ExifImageWidth - 1000
ExifImageHeight - 662
InteroperabilityOffset - 54468
SensingMethod - One-chip color area sensor
FileSource - Other
SceneType - Other
CustomRendered - Normal process
ExposureMode - Auto
White Balance - Auto
FocalLengthIn35mmFilm - 31 mm
SceneCaptureType - Standard
Contrast - Hard
Saturation - Normal
Sharpness - Hard
SubjectDistanceRange - Distant view

GPS information: -
GPSVersionID - 2.3.0.0

Maker Note (Vendor): -
Mode - Auto
Quality - 5
ISO - 400
White Balance - Auto
Lens Type - smc PENTAX-DA 16-45mm F4 ED AL

Thumbnail: -
Compression - 6 (JPG)
XResolution - 300
YResolution - 300
ResolutionUnit - Inch
JpegIFOffset - 54610
JpegIFByteCount - 6727



Second:

Filename - 1.jpg
Make - PENTAX
Model - PENTAX K-5 II s
Orientation - Top left
XResolution - 300
YResolution - 300
ResolutionUnit - Inch
Software - K-5 II s Ver 1.07
DateTime - 2015:04:25 08:49:09
Artist -
YCbCrPositioning - Co-Sited
Copyright -
ExifOffset - 706
ExposureTime - 1/1000 seconds
FNumber - 6.30
ExposureProgram - Aperture priority
ISOSpeedRatings - 400
ExifVersion - 0230
DateTimeOriginal - 2015:04:25 08:49:09
DateTimeDigitized - 2015:04:25 08:49:09
ComponentsConfiguration - YCbCr
ExposureBiasValue - 0.00
MeteringMode - Multi-segment
Flash - Flash not fired, compulsory flash mode
FocalLength - 21.00 mm
FlashPixVersion - 0100
ColorSpace - sRGB
ExifImageWidth - 1000
ExifImageHeight - 662
InteroperabilityOffset - 54468
SensingMethod - One-chip color area sensor
FileSource - Other
SceneType - Other
CustomRendered - Normal process
ExposureMode - Auto
White Balance - Auto
FocalLengthIn35mmFilm - 31 mm
SceneCaptureType - Standard
Contrast - Hard
Saturation - Normal
Sharpness - Hard
SubjectDistanceRange - Distant view

GPS information: -
GPSVersionID - 2.3.0.0

Maker Note (Vendor): -
Mode - Auto
Quality - 5
ISO - 400
White Balance - Auto
Lens Type - smc PENTAX-DA 16-45mm F4 ED AL

Thumbnail: -
Compression - 6 (JPG)
XResolution - 300
YResolution - 300
ResolutionUnit - Inch
JpegIFOffset - 54610
JpegIFByteCount - 6946
04-29-2015, 12:27 PM   #4
Senior Member




Join Date: Nov 2013
Posts: 153
I you have taken 250 shots in aperture priority and they have all been ok then chances are things are ok and this was just a glitch.

It appears from your two photos however, that something was definitely not right at that point in time, because they share the same shutter speed, aperture and ISO (and lighting conditions were exactly the same). This suggests that either your shutter fired slower than it should have, or the aperture did not stop down as far as it should have. I would say that the most likely of these is the latter, and can be caused by sticky or slow movement of the aperture blades. If any drink got inside the lens then that could definitely cause this. However, this is jumping to conclusions. Try opening and closing the aperture manually with the lever on the lens mount and see if there is any slowness.

04-29-2015, 12:50 PM   #5
Senior Member




Join Date: Sep 2010
Posts: 149
Original Poster
I just tried that and it seems fine. I dont know, if this happens again I wil conatct service centre
04-29-2015, 01:25 PM   #6
Site Supporter




Join Date: May 2014
Location: Minnesota
Posts: 1,182
What do you have the ISO set at Fixed or Auto ? Also what mode AV, TV, P etc.

Oops I didn't read the Exif; Aperture Priority, ISO 400, shutter speed 1/1000 exposure on both ?

---------- Post added 04-29-15 at 04:10 PM ----------

I would send the camera back, I think something is wrong.

Last edited by hjoseph7; 04-29-2015 at 01:35 PM.
04-29-2015, 07:32 PM   #7
Junior Member
GryphonPhotoCat's Avatar

Join Date: Nov 2012
Location: Virginia
Photos: Albums
Posts: 30
I would do some test shots of different things that will let you put your shutter through it's paces... Just encase.

test each setting for overall and see if it's working the way you expect it to...

For example I had a problem with my K-01 were the shutter was going bad. I took pictures of something like a light bulb at 1/4000th of a second and found out that any thing over 250th or so wasn't working... the shutter was sticking and not responding correctly.
05-05-2015, 07:17 PM   #8
Site Supporter
royden's Avatar

Join Date: Jun 2010
Location: Atlanta, Ga
Photos: Gallery
Posts: 262
Posting so I can follow this thread as I have that combo. I did not have this problem.

05-06-2015, 02:24 PM   #9
Senior Member




Join Date: Sep 2010
Posts: 149
Original Poster
After 1000 photos - i can say problem is gone. I guess juice on front element was problem. Weird. I will post if it happens again.
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
camera, drink, iso, pentax help, photography, troubleshooting
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Guidance on a K5-II or K5-IIs and lenses Kubikle Free Pentax K-5 5 12-22-2013 01:07 AM
pentax da 16-45 vs 16-50 da* for K5? gf1 Pentax SLR Lens Discussion 18 11-16-2013 10:14 AM
What general purpose lens for K5 (16-45, 16-50, 17-70, 18-135)?) miho Pentax SLR Lens Discussion 25 08-22-2011 04:13 AM
For Sale - Sold: Pentax K5 and DA 16-45 $1250 (US) narichey81 Sold Items 2 05-16-2011 11:58 AM



All times are GMT -7. The time now is 05:47 AM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top