Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
03-14-2009, 07:42 AM   #1
Site Supporter




Join Date: Feb 2007
Location: US
Photos: Albums
Posts: 394
K20D High ISO Performance

In the April issue of Popular Photography they have a good article on APSC vs Full Frame DSLRs.
Long story short:
They see no compelling reason for people to move to full frame.
APSC tops out technically at 15MP

If you take the two points above as true that means the current K20D is a theoretical sweet spot camera.

If you also assume that Pentax already understands this, where do they go from here?

The most logical avenue is making a good camera better. More frames per second and better high ISO performance.

This all leads to the question of upgrading my K10D to the K20D.

I love my K10D for well lit photography but I want to shoot indoor sports without flash and my K10D falls on its face in this category. I invested in a fast Sigma 70-200 2.8 Zoom with hopes of fixing the problem with faster glass but the photos I get still have unacceptable color noise in skin tones. Yes, I am shooting only RAW.

My question is two fold:

How much better is the K20D than the K10D in high ISO performance and will it get me where I need to be?

How likely is it that Pentax’s next camera will be significantly better than the K20D at high ISO performance?

03-14-2009, 08:45 AM   #2
Veteran Member




Join Date: Feb 2009
Location: Lithuania
Photos: Gallery
Posts: 490
hello joelovotti,

I liked your observations about Aps-c and ff, and the current state in which pentax is..
i also hope that they will keep upgrading the current k20d model in all ways possible, even with ysterdays technology, it is possible to make it even better, as you mentioned better fps, AF, and noise.
i Had K10D, and now own K20D,
when I had K10D, i could use pictures taken with ISO upto 1250, after cleaning them with my photoshop software.
now that i have k20d i can use pictures with ISO upto 2000, after cleaning them with my photoshop software.
i would equate the noise level acceptability on k10d 1250 and k20d 2000. of course much depends on lighting, and some shots taken in 2000 do not retain enough details to keep them, however some ISO 2500 retain enough details. however i believe there is much space to improve. i do not know the technical issues, on pixel size sensor photon properties etc. but i hope that the newt pentax model will at least have the usable ISO 3200 or even ISO 4000 that would be enough for me to upgrade.

i do not know if i answered your question, but i hope it was helpful.
03-14-2009, 08:54 AM   #3
Senior Member




Join Date: Oct 2008
Location: NYC
Posts: 258
I also upgraded to K20D from K10D, Highest ISO level on K20D is 3200, but noise level is very noticeable at 3200. Compare both at ISO 1600. K20D is a little better, but i personally say it's not worth the upgrade(even i did), since there are rumor about new model release, you should wait for the next one.
03-14-2009, 09:03 AM   #4
Forum Member




Join Date: Nov 2008
Location: Salt Lake City
Posts: 86
I seem to get pretty good performance with ISO 1600 taking indoor highschool basketball photos. I've had no totally harsh complaints. It's quite bearable and sufficient.

03-14-2009, 09:47 AM   #5
Veteran Member
code4code5's Avatar

Join Date: Oct 2007
Location: Denver, CO
Photos: Gallery
Posts: 438
I upgraded from a K100 to a K20 and have been absolutely thrilled in the difference with high ISOs. 1600 with the K20 is quite acceptable and color response, IMHO, is still good.
03-14-2009, 09:49 AM   #6
Veteran Member




Join Date: Mar 2007
Location: Boston, PRofMA
Photos: Albums
Posts: 3,053
QuoteOriginally posted by Mystic Quote
i would equate the noise level acceptability on k10d 1250 and k20d 2000.
I think noise on the K10D was ok up to ISO400 and ISO800 is a stretch.
On the K20D, it's ok up to ISO1100 (but you can only autoiso in full stop increments, so it's ISO800) and ISO1600 is ok in a stretch.
03-14-2009, 10:04 AM   #7
Veteran Member
Jewelltrail's Avatar

Join Date: May 2008
Location: Rhode Island
Photos: Albums
Posts: 4,180
QuoteQuote:
joelovotti K20D High ISO Performance

--------------------------------------------------------------------------------
In the April issue of Popular Photography they have a good article on APSC vs Full Frame DSLRs.
Long story short:
They see no compelling reason for people to move to full frame.
APSC tops out technically at 15MP

If you take the two points above as true that means the current K20D is a theoretical sweet spot camera.

If you also assume that Pentax already understands this, where do they go from here?

The most logical avenue is making a good camera better. More frames per second and better high ISO performance.

This all leads to the question of upgrading my K10D to the K20D.

I love my K10D for well lit photography but I want to shoot indoor sports without flash and my K10D falls on its face in this category. I invested in a fast Sigma 70-200 2.8 Zoom with hopes of fixing the problem with faster glass but the photos I get still have unacceptable color noise in skin tones. Yes, I am shooting only RAW.

My question is two fold:

How much better is the K20D than the K10D in high ISO performance and will it get me where I need to be?

How likely is it that Pentax’s next camera will be significantly better than the K20D at high ISO performance?
I think your assessment of where Pentax is at with its crop sensor is right on. But Pentax is not alone. As for ISO performance, it is the consensus that the K20 has at least 1 stop better performance than the K10 at high ISO. Only you know if this works for you.

Also, Pentax' hands-off approach to noise generates a misconception that Pentax is inferior to its competition when it comes to handling noise. I, as well as many others, think differently. I posted my thoughts, along with support, at the end of this thread:

https://www.pentaxforums.com/forums/pentax-beginners-corner-q/51972-megapixel...tml#post501250
03-14-2009, 11:30 AM   #8
Junior Member




Join Date: May 2007
Location: Boulder, CO, USA
Posts: 28
I think you get about 1 extra stop with the K20D. I shot my K10D (and shoot my K-m) up to 1100 on auto-ISO. I shoot my K20D with auto_Iso up to 2200.

03-14-2009, 12:45 PM   #9
Veteran Member
Mr Hyde's Avatar

Join Date: May 2007
Location: NJ, USA
Posts: 761
QuoteOriginally posted by joelovotti Quote
How much better is the K20D than the K10D in high ISO performance and will it get me where I need to be?
I cant really answer your question, only you can. But I'll give you an example so you can judge. One thing I can say is that my K20D is way better than my K10D at ISO over 1600....

This was taken at ISO-2000


RAW converted in Bibble and cropped from the original.
Attached Images
 
03-14-2009, 01:40 PM   #10
Senior Member
K100Dave's Avatar

Join Date: Feb 2007
Location: Omaha, NE
Posts: 111
I seldom shoot anything above iso 800. I can say that when I have shot above this, I have been preatty happy with the results. If not I just adjust with noise ninja to my liking. Besides, a little noise can help a composition.
03-14-2009, 01:57 PM   #11
Inactive Account




Join Date: Feb 2009
Location: Hood River, Oregon
Posts: 18
I use high ISO a lot with my K20D and find the results much better than anything I could do with film. With film we had grain and now with digital noise, I prefer a a sharp inage with noise to a noisless smudged picture.
Here is a shot at ISO 3200 run through Bibble
http://img.photobucket.com/albums/v246/tricogus/IMGP6045.jpg
Douglas Film
03-14-2009, 02:15 PM   #12
Veteran Member
bwield's Avatar

Join Date: Mar 2008
Posts: 444
Having had both, I have found that the difference in High ISO IS enough to upgrade
I would not have been able to get this shoot at 2000 ISO with the K10D



Theres nothing reall special about the shot, but it would not have been possible to handhold a shot in this circumstance with the K10d
03-14-2009, 02:31 PM   #13
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
bwield: Is that San Xavier del Bac, outside Tucson AZ?
03-14-2009, 02:40 PM   #14
Veteran Member
bwield's Avatar

Join Date: Mar 2008
Posts: 444
Yepp

QuoteOriginally posted by RioRico Quote
bwield: Is that San Xavier del Bac, outside Tucson AZ?
It is indeed San Xavier
03-14-2009, 03:04 PM   #15
Site Supporter
wtlwdwgn's Avatar

Join Date: Jan 2007
Location: Billings, MT
Photos: Gallery | Albums
Posts: 9,333
I think my K20D ISO noise is much superior to my K10D. K20D, DA* 50-135 f/2.8, ISO 3200.

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!
apsc, camera, dslr, frame, iso, k10d, k20d, performance, photography, question
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
K-r vs. K-x in high ISO performance bwDraco Pentax DSLR Discussion 15 12-11-2010 11:10 AM
Boosting High ISO Performance Jewelltrail Pentax DSLR Discussion 30 10-10-2010 10:26 PM
K-7 high ISO Performance RAW shang Pentax DSLR Discussion 28 07-04-2010 12:27 PM
K200D low light/high iso performance indytax Pentax DSLR Discussion 22 02-07-2009 07:49 PM
Better high ISO performance on "K20D"? switters Pentax News and Rumors 39 12-02-2007 01:06 PM



All times are GMT -7. The time now is 05:51 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