Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-19-2013, 07:43 PM   #16
New Member




Join Date: May 2010
Location: Manila
Posts: 6
Check the link for some samples of high ISO shots.

https://www.pentaxforums.com/forums/pentax-k-5/160287-iso-5000-10000-shots.html

02-19-2013, 07:51 PM   #17
Forum Member
wolffy's Avatar

Join Date: Mar 2012
Location: Saint Paul, MN USA
Photos: Gallery | Albums
Posts: 63
rodeo

Here is a shot from the Cody, WY night rodeo shot with a K5 at ISO 25600 sure there is some noise but I got the shot, 1/500 sec I had a D3100 and I am telling you it cant do this!
02-19-2013, 08:22 PM   #18
Pentaxian
audiobomber's Avatar

Join Date: May 2008
Location: Sudbury, Ontario
Photos: Albums
Posts: 6,722
Reset all the menus back to factory defaults. The K-5 files should be cleaner, if they're not, you've done something to undermine the performance.
02-19-2013, 09:23 PM   #19
Site Supporter
Site Supporter




Join Date: Jan 2010
Location: Michigan
Photos: Gallery
Posts: 2,200
Are you guys basing your comments on the 100 kB shots in the OP or do you have access to the real files?

02-19-2013, 10:36 PM   #20
Forum Member
SKwan's Avatar

Join Date: Apr 2011
Location: Hong Kong
Photos: Gallery | Albums
Posts: 95
QuoteOriginally posted by pugsypoogirl Quote
I shoot a lot of gigs so high iso is good for me, and I shot them with my nikon kit lens without any problems at all. Maybe I thought I would be able to jump from one to the other without any problems but the images seem so different! frustrated but wont give up!
Frankly speaking, I cannot identify terrible noises from both photos! I note that the 1st photo provides more details on shadow areas and the 2nd has got a higher contrast and less details.

If you like photos in relatively higher contrast, suggest to turn off the shadow correction and/or set a higher contrast.
02-20-2013, 12:10 AM   #21
Pentaxian




Join Date: Oct 2010
Photos: Gallery | Albums
Posts: 2,778
It might be also that nikon has some NR applied in shot in camera. It reduces noise, but also detail. I think it is possible to have with pentax too(NR on). But as others have mentioned getting exposure right is making it more easy to get cleaner shot. It goes especially in dark enviroment + artificial and mixed light. What you had for dog shot.

And next time try closer range and 35-40mm setting for kit lens + f 5.6 - 7...Maybe even bigger iso if nessesary.
QuoteOriginally posted by pugsypoogirl Quote
No worries, this is just one shot of hundreds, and all sorts of subjects and all sorts of settings, no shot is without noise? noise that never appeared with my nikon even at the highest iso's so was expecting much better but so far I can't match the nikon no matter which settings I use?
02-20-2013, 02:48 AM   #22
Senior Member




Join Date: Jan 2007
Location: Tampere, Finland
Posts: 191
According to exif it seems like K-5 image is originally PEF and D3100 is JPG. Then:

-K-5 has no noise reduction vs. D3100 noise reduction is set to "High" (named "gain control" in exif)
-K-5 is shot with "exposure bias" (exposure compensation) -1 so to get even exposure with D3100 it needs to be "pushed" 1 EV which increases noise
-As K-5 image has been originally PEF, OP should tell which RAW converter is used to make the JPG (or is it developed in camera?)
-OP should also tell if there is any post-processing made to these images

So taking into account the previous facts, the D3100 image may well be "ridiculously better". K-5 is "advanced" camera and D3100 is entry level camera. With K-5 you need to know what you are doing, especially in low light. If you don't, entry level models take "better pictures" (especially out-of-the-box). IMO you should check the things many have suggested and experiment and learn more. K-5 is terrific tool which can produce very nice images even in very low light. I have shot thousands on pictures at ISO 6400-12800 and those can be very good if processed right.
02-20-2013, 02:56 AM   #23
Site Supporter
Site Supporter
eaglem's Avatar

Join Date: Feb 2009
Location: Perth Western Australia
Photos: Gallery
Posts: 27,849
High ISO 5,000



EXIF Sub IFD

Exposure Time (1 / Shutter Speed) = 1/125 second ===> 0.008 second
Lens F-Number / F-Stop = 14/5 ===> ƒ/2.8
Exposure Program = n/a (0)
ISO Speed Ratings = 5000
EXIF Version = 0230
Original Date/Time = 2012:12:17 18:10:20
Digitization Date/Time = 2012:12:17 18:10:20
Components Configuration = 0x01,0x02,0x03,0x00 / YCbCr
Shutter Speed Value (APEX) = 49471/7102
Shutter Speed (Exposure Time) = 1/125 second
Aperture Value (APEX) = 24361/8200
Aperture = ƒ/2.8
Exposure Bias (EV) = 0/1 ===> 0
Metering Mode = pattern / multi-segment (5)
Flash = Flash did not fire, compulsory flash mode
Focal Length = 10/1 mm ===> 10 mm
FlashPix Version = 0100
Colour Space = sRGB (1)
Image Width = 800 pixels
Image Height = 530 pixels
Image Sensing Method = one-chip color area sensor (2)
Image Source = 0x03,0x00,0x00,0x00
Scene Type = directly photographed image
Custom Rendered = normal process (0)
Exposure Mode = auto exposure (0)
White Balance = auto (0)
Focal Length in 35mm Film = 15
Scene Capture Type = standard (0)
Contrast = hard (2)
Saturation = normal (0)
Sharpness = hard (2)
Subject Distance Range = distant view (3)

02-20-2013, 03:01 AM   #24
Site Supporter
Site Supporter
eaglem's Avatar

Join Date: Feb 2009
Location: Perth Western Australia
Photos: Gallery
Posts: 27,849
High ISO 51,200



EXIF Sub IFD

Exposure Time (1 / Shutter Speed) = 1/180 second ===> 0.00556 second
Lens F-Number / F-Stop = 22/1 ===> ƒ/22
Exposure Program = n/a (0)
ISO Speed Ratings = 51200
EXIF Version = 0230
Original Date/Time = 2013:01:24 16:33:54
Digitization Date/Time = 2013:01:24 16:33:54
Components Configuration = 0x01,0x02,0x03,0x00 / YCbCr
Shutter Speed Value (APEX) = 27128/3621
Shutter Speed (Exposure Time) = 1/180 second
Aperture Value (APEX) = 21655/2428
Aperture = ƒ/22
Exposure Bias (EV) = 0/1 ===> 0
Metering Mode = pattern / multi-segment (5)
Flash = Flash fired, compulsory flash mode
Focal Length = 105/1 mm ===> 105 mm
FlashPix Version = 0100
Colour Space = sRGB (1)
Image Width = 733 pixels
Image Height = 800 pixels
Image Sensing Method = one-chip color area sensor (2)
Image Source = 0x03,0x00,0x00,0x00
Scene Type = directly photographed image
Custom Rendered = normal process (0)
Exposure Mode = auto exposure (0)
White Balance = auto (0)
Focal Length in 35mm Film = 157
Scene Capture Type = standard (0)
Contrast = hard (2)
Saturation = normal (0)
Sharpness = hard (2)
Subject Distance Range = close view (2)

In my opinion for what it's worth, the Pentax handles high ISO as well if not better than the Nikon.
02-20-2013, 03:32 AM   #25
Veteran Member




Join Date: Oct 2007
Location: France
Photos: Albums
Posts: 804
Dog portrait... 1600 iso as yours to compare; jpeg out of the camera without additional post processing; may I suggest to make a try with defaults factory settings
02-20-2013, 04:50 AM   #26
New Member




Join Date: Feb 2013
Photos: Gallery
Posts: 8
Original Poster
Hi guys, Just to let you know that I did a firmware update which has appeared to have solved the problem, I can now shoot up to 12800 with no where near as much noise that was appearing at a much lower iso (especially colour noise). The images I am getting now are more like I expected from the k5 as I did a lot research before buying! woohoo! Happy girl, maybe now I can get some sleep!
02-20-2013, 04:55 AM   #27
New Member




Join Date: Feb 2013
Photos: Gallery
Posts: 8
Original Poster
QuoteOriginally posted by pugsypoogirl Quote
Hi guys, Just to let you know that I did a firmware update which has appeared to have solved the problem, I can now shoot up to 12800 with no where near as much noise that was appearing at a much lower iso (especially colour noise). The images I am getting now are more like I expected from the k5 as I did a lot research before buying! woohoo! Happy girl, maybe now I can get some sleep!
And a quick note to let you all know how much I appreciate you taking the time to reply, I am impressed and have read all posts, trying to soak in as much info as possible!
02-20-2013, 04:56 AM   #28
New Member




Join Date: Feb 2013
Photos: Gallery
Posts: 8
Original Poster
QuoteOriginally posted by goubejp Quote
Dog portrait... 1600 iso as yours to compare; jpeg out of the camera without additional post processing; may I suggest to make a try with defaults factory settings
Gorgeous!
02-20-2013, 06:43 AM   #29
Veteran Member
awaldram's Avatar

Join Date: May 2008
Location: Hampshire
Photos: Gallery
Posts: 720
Just a few observations on the k5 shot technically.

1 shot -1 EV so in effect 3200 after PP
2 because -1EV when taking shot will have been Exposed to the left dragging the signal into the noise floor another stop extra noise
3 the shot is underexposed anyway

So because of decisions you took whilst taking the image the camera is effectivle shooting with a 2 stop disadvantage to the Nikon given this I think it does extremly well.
02-20-2013, 11:14 AM   #30
Veteran Member
mysterick's Avatar

Join Date: Oct 2006
Location: 44266
Photos: Gallery | Albums
Posts: 429
QuoteOriginally posted by pugsypoogirl Quote
Thanks to you all for replying, I know the two shots are not great or comparable but the nikon is still so much smoother. I have shots all different settings etc.. but the nikon pics are always smoother and the pentax grainy( which I feel comes across in the comparisons). This may be due to the pentax showing greater detail in pics? maybe i just need to get to grips with the camera better? was just wondering if anyone has had any issues like this?
Beginning to smell like a troll.
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, dslr, k-5, k-5 ii, k-5 iis, k5, nikon, pentax, pentax k-5, shot
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Nature Even in terrible light... gjtoth Photo Critique 6 02-17-2013 10:27 PM
Pell grants Mitt's terrible math jeffkrol General Talk 4 09-21-2012 07:05 AM
Suggestion Shopping Links are Terrible builttospill Site Suggestions and Help 8 11-10-2011 02:49 PM
Noise...noise..do I need software? ejbpesca Photographic Technique 15 04-07-2011 03:39 PM
New K200D - terrible color JN99 Pentax DSLR Discussion 61 07-31-2008 07:01 AM



All times are GMT -7. The time now is 03:02 PM. | See also: NikonForums.com, CanonForums.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