Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-28-2011, 11:42 PM   #871
Pentaxian




Join Date: May 2008
Location: Seattle, WA
Posts: 1,378
Led Zepagain

Pentax KX
Sigma 24-60mm F2.8

ISO 1250


ISO 2500



Last edited by john5100; 02-04-2011 at 03:56 PM.
03-24-2011, 07:13 PM   #872
Pentaxian
JohnBee's Avatar

Join Date: Sep 2008
Location: front of computer
Posts: 4,620
And were back...

Well this weekend marked the beginning of my own journey with the new K-5, and so, I started things off with a few primes and an try at some tough shooting conditions. The setting was mostly with high ISO and low ambient, covered by backlighting. which I consider tough shooting for most any camera(FF included).

In this particular set, I setup the camera for ISO6400 and shot with an 85mm at f/2. The scene was illuminated with Incandescent lighting(chandelier) placed at the rear right of the subject to help invoke highlight and shadow recovery in processing.

The file was developed in ACR 6,x and processed with Denoise, FocalBlade and Perfectly Clear. I shot the DNG image at: 1/100s, ISO6400, -1eV(to preserve highlights). And accepted an adjustment of +.65 eV and a +36 brightness from ACR prior to processing. All other ACR settings were at 0 respectively.

So all in all, I am quite satisfied with the K-5's DR capacity in these condition. And though I think there is room for improvements in PP(slight magenta cast). I think things are looking very good on the overall potential side of things.


K-5, ISO6400, 1/100s, 85mm f/2, DNG, NR:OFF


PS. I used AFC w/FPS priority(no assist lamp) and focus was spot on in this test.
03-24-2011, 09:59 PM   #873
Veteran Member




Join Date: Dec 2010
Location: Manila
Photos: Gallery | Albums
Posts: 2,190
Here's a shot at a performance for my school's 400th year anniversary....




Pentax K-x, FA 100-300 f4.7-5.8
ISO 3200, f/5.6, 1/100s @210mm
03-25-2011, 09:21 AM   #874
Veteran Member




Join Date: Sep 2007
Location: USA
Posts: 1,812
I posted these in another thread - but thought it was appropriate here -

May seem strange - but neither of these were my picks -
but were singled out by the bass player of this band -

Pentax K-x

ISO5000, f/3.5, 1/40, 18mm -
yes, a really dark jazz club, and yes, the humble 18-55 Mk1 kit zoom wide-open.....


ISO5000, f/4.5, 1/40, 68mm - 50-200 kit zoom wide-open.
this has the EXIF re-attached (caveat - PhotoBucket can mysteriously drop metadata)


Last edited by UnknownVT; 03-25-2011 at 09:36 AM.
03-25-2011, 11:59 AM   #875
Pentaxian
jgredline's Avatar

Join Date: Oct 2007
Location: LosAngeles, Ca.
Photos: Albums
Posts: 10,587
Here are two images that are 100% jpegs out of the camera and no PP done at all.
These are ISO 6400 with the Nikon D7000


Here is the same full size image of my grand daughter taken at the hospital with aweful lighting conditions.
Nikon D7000 :: DSC_3248.jpg picture by jgredline - Photobucket

Again, straight out of the camera
03-25-2011, 01:59 PM   #876
Pentaxian




Join Date: May 2008
Location: Seattle, WA
Posts: 1,378
KX and DA* 50-135mm F2.8 at ISO 6400


and ISO 4000
03-25-2011, 03:21 PM - 1 Like   #877
Forum Member
kardinal's Avatar

Join Date: Feb 2011
Location: Athens, GA
Photos: Gallery
Posts: 68
Some photos from the Godspeed You! Black Emperor concert on 3/22, all shot with my k-x. Note: I did use a bit of noise reduction in Lightroom on a few of these :\

@ 28mm; 1/20; ISO 1600; f2.8



@ 85mm; 1/20; ISO 6400; f2.8



@ 50mm; 1/20; ISO 6400; f1.7



@50mm; 1/20; ISO 6400; f1.7



@ 50mm; 1/20; ISO 6400; f1.7



@75mm; 1/20; ISO 6400; f2.8

03-26-2011, 09:56 AM   #878
Forum Member




Join Date: Dec 2010
Location: Florida
Posts: 87
http://a6.sphotos.ak.fbcdn.net/hphotos-ak-snc6/190489_10150166103210833_4101..._1847230_n.jpg

ISO 6400. F2. K7.

03-27-2011, 09:58 PM   #879
Veteran Member




Join Date: Mar 2011
Location: Eastern Kentucky
Posts: 416
Some of these shots are amazing to me as the small sensor camera I have been using falls apart above iso 200 when a lot of these were taken at the equivalent of four to five stops higher.This really helps make up for the small armature of the zooms that are now popular and affordable.Noise is what is what has got me to finally get into a dslr,a Pentax of course so I can use my old k lens.
Jake
03-28-2011, 10:11 AM   #880
Veteran Member




Join Date: Sep 2008
Location: Pittsburgh, PA
Photos: Albums
Posts: 318
This is a shot I took on a recent photo shoot when I intentionally wanted some graininess added to the shot. Shot with a K-7, f/2.8, 1/250 and ISO 6400 using the DA* 16-50mm f/2.8 at 43mm. Lighting was with an Alien Bee 800 gridded.

03-28-2011, 07:30 PM - 1 Like   #881
Pentaxian




Join Date: Oct 2006
Location: Chicago suburb, IL, USA
Posts: 1,535
I'll play.

These are with the K-5, Jpeg ***, High ISO NR OFF, cropped, PP'd with a surprisingly light applications of Topaz Denoise and Topaz InFocus, downsized for the web. I've posted them in a different forum here, but they're on topic.

ISO 10K Sigma EX 180 f3.5 APO DG Macro wide open through glass indoors. The light was mostly supplied by skylights on an overcast day.



ISO 12.8K Pentax DA 18-250 @ 200mm, f6.2 in relatively dim room light



I've found that Natural, with in-camera Sharpening at -4 gives me very good high ISO jpeg results. NR is expected at these crazy ISO sensitivities, and I haven't found anything as good as Topaz DN to smooth out the fine line details, and Topaz InFocus allows deconvolution sharpening without a lot of the artifacts that local contrast enhancement produces.

Scott
03-28-2011, 09:33 PM   #882
Senior Member
metalmania's Avatar

Join Date: Feb 2011
Posts: 253
snostorm, those are unbelievable beautiful pictures. Thanks for the Topaz tips.
03-30-2011, 05:56 AM   #883
Ash
Community Manager
Loyal Site Supporter
Ash's Avatar

Join Date: Mar 2007
Location: Toowoomba, Queensland
Photos: Gallery | Albums
Posts: 22,695
Had a go at trying out a few ISO 12800-25600 shots with the K-5 under some putrid cool white LED downlighting and these couple came through:

Moderate in-camera NR but no other PP NR or sharpening:



(EXIF intact if interested).

Not bad at all - might be able to use ISO 12800 if exposed well for full-size images at a push...
03-30-2011, 06:06 AM   #884
Pentaxian
JohnBee's Avatar

Join Date: Sep 2008
Location: front of computer
Posts: 4,620
QuoteOriginally posted by Ash Quote
Had a go at trying out a few ISO 12800-25600 shots with the K-5 under some putrid cool white LED downlighting and these couple came through:

Moderate in-camera NR but no other PP NR or sharpening:



(EXIF intact if interested).

Not bad at all - might be able to use ISO 12800 if exposed well for full-size images at a push...
Very nice indeed!

Have you considered or tried experimented with shooting at the pre NR stages(- ISO2200) vs in camera ISO12.8K?

dgaies and I did some preliminary testing early on but never finished due to monetary issues(inside joke ). But the preliminary results looked promising. Some of my early tests may have reached the 12.8K regions, though I never really got a chance to measure.

Last edited by JohnBee; 03-30-2011 at 09:01 AM.
03-30-2011, 08:58 AM   #885
Veteran Member
Pentaxor's Avatar

Join Date: May 2009
Location: Vancouver, B.C.
Photos: Gallery
Posts: 6,513
QuoteOriginally posted by Ash Quote
Had a go at trying out a few ISO 12800-25600 shots with the K-5 under some putrid cool white LED downlighting and these couple came through:

Moderate in-camera NR but no other PP NR or sharpening:



(EXIF intact if interested).

Not bad at all - might be able to use ISO 12800 if exposed well for full-size images at a push...
these looks like ISO 1600 on the K-7.
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, dolphin, dslr, flickr, gallery, iso, photography, post
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
How to post high resolution photo here? Underbridge Pentax Medium Format 5 12-25-2012 08:56 PM
People K-5 high ISO... how high can we really go... igor Post Your Photos! 2 03-24-2012 01:10 AM
Is there a high iso gallery for K-7? justtakingpics Pentax DSLR Discussion 13 05-31-2010 05:32 PM
K-7 high ISO vs K20D high ISO supa007 Pentax DSLR Discussion 72 05-10-2010 04:24 PM
Pentax k20d High ISO Photo Gallery PentaxPoke Pentax DSLR Discussion 68 02-18-2009 05:19 AM



All times are GMT -7. The time now is 01:29 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