Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
12-07-2014, 06:32 AM - 1 Like   #1
Site Supporter




Join Date: Nov 2014
Posts: 248
How is the Image Quality using ISO 800

I have not tried it yet but just wanted to see if anyone has had Good results using 800 or even 1000( I would Not go more than that ) I know image quality suffers when using this high of ISO but i would like to see some photos of High ISO. Thank you

12-07-2014, 06:43 AM   #2
Pentaxian
Rimfiredude's Avatar

Join Date: Oct 2014
Location: Washington
Photos: Gallery
Posts: 2,177
I have used 3200 with very decent results. The best way to find out is go test it for yourself.
12-07-2014, 06:44 AM   #3
Pentaxian
Na Horuk's Avatar

Join Date: Feb 2012
Location: Slovenia, probably
Photos: Gallery | Albums
Posts: 10,864
I think this heavily depends on the camera. You can look at some 645D and 645Z reviews to see the difference between these two generations of cameras.
It also depends on the post processing (there are special noise reduction programs out there, like Noise Ninja and TopzDenoise). And of course, what you are photographing. If its a landscape, some find even ISO 400 unacceptable (even though casual viewers probably won't notice a difference). If its a concert, ISO 6400 might be absolutely fine.
Ultimately, its a balancing act (like everything else in photography) and you will develop your own preferences. But don't be afraid to push them every once in a while
12-07-2014, 06:46 AM   #4
Site Supporter




Join Date: Nov 2014
Posts: 248
Original Poster
Was that on the 645D ? I did Not think you can go that High. I know there is the Extended ISO beyond ISO 1000. Thank you I will try it but wanted to get other opinions in the meantime.

12-07-2014, 08:30 AM   #5
Inactive Account




Join Date: Jul 2010
Photos: Gallery
Posts: 328
Depends on the light, a long lens in Daylight to keep up the speed iso 4000 can look great on my K5II. If it is dark then best to
lower it a little.
Usually left on auto 80-4000
12-07-2014, 08:42 AM   #6
Veteran Member
Ryan Tischer's Avatar

Join Date: Feb 2012
Location: Duluth, Minnesota
Photos: Albums
Posts: 435
I don't have the 645Z yet, but my understanding is that it's excellent at ISO 800. I do have the 645D and find 800 and 1000 towards the end of what I, as a pixel peeper deem acceptable. The files don't hold up quite as well when you push them compared to lower ISO's, but if you nail the exposure they're just fine.
12-07-2014, 01:45 PM   #7
672
Pentaxian




Join Date: Dec 2010
Location: santa monica
Photos: Gallery
Posts: 418
I agree with Ryan about losing the ability to process after a certain ISO. I always did everything in my power to make iso 500 the highest I would use on the D.
12-07-2014, 01:51 PM   #8
Site Supporter




Join Date: Nov 2014
Posts: 248
Original Poster
Thank you. I will try the various ISO and see where it takes me. Thank you

12-09-2014, 08:36 AM   #9
Senior Member




Join Date: Oct 2010
Location: Toronto, Canada
Posts: 132
ISO 800 is nothing on the 645Z. I shoot comfortably to 3200. 6400 is decent, and I've pulled a shot the people love in complete darkness at 25,600. It's the best sensor on the market for ISO. Period.
12-09-2014, 01:05 PM   #10
Site Supporter




Join Date: Nov 2011
Location: pontiac mi.
Posts: 353
with my 645d I try to stay between 200 and 800 iso, but if I must, I will go to 1600. a shot with noise many times beats no shot.
12-09-2014, 01:25 PM   #11
Junior Member




Join Date: Jan 2012
Location: Utica,Il
Posts: 40
QuoteOriginally posted by ndevlin Quote
ISO 800 is nothing on the 645Z. I shoot comfortably to 3200. 6400 is decent, and I've pulled a shot the people love in complete darkness at 25,600. It's the best sensor on the market for ISO. Period.
I completely agree that with the 645D I would always try to stay at 800 or less. The D is a great camera, but now that I have upgraded to the Z I have found that I can let the camera select the ISO and not worry at all about the quality of the image. Totally impressed with this camera.
12-17-2014, 09:07 PM   #12
Senior Member




Join Date: Oct 2010
Location: Toronto, Canada
Posts: 132
I accidentally did the first look of a studio shoot at ISO 1000 (camera had been on 6400 and i dialed it back till it looked like "100" but I missed a zero). Had I not been perplexed by the excessive power of my strobes, I would never have noticed. Insane performance.
01-06-2015, 09:51 PM - 1 Like   #13
Site Supporter
mikeSF's Avatar

Join Date: Jan 2009
Location: East Bay Area, CA
Photos: Gallery
Posts: 5,705
quite unexpectedly, I had to crank my 645D to 1250 as the wind picked up while shooting telephoto 300mm + 1.4x TC in order to counter wind motion. I still have some motion blur in my image, and I did apply some noise reduction in post, but overall am pleased that ISO 1250 is at least passable in this shot:

365
645D & 67 M*300 & 67 1.4x TC
01-06-2015, 10:51 PM   #14
Site Supporter




Join Date: Nov 2011
Location: pontiac mi.
Posts: 353
QuoteOriginally posted by mikeSF Quote
quite unexpectedly, I had to crank my 645D to 1250 as the wind picked up while shooting telephoto 300mm + 1.4x TC in order to counter wind motion. I still have some motion blur in my image, and I did apply some noise reduction in post, but overall am pleased that ISO 1250 is at least passable in this shot:

365
645D & 67 M*300 & 67 1.4x TC


passable???????? i'm glad i'm not that finniky, it looks great to me. I've used the 300mm with both the 1.4x and the 2.0x at 1600 iso with pleasing { to me} results.
01-07-2015, 12:32 AM   #15
Site Supporter
mikeSF's Avatar

Join Date: Jan 2009
Location: East Bay Area, CA
Photos: Gallery
Posts: 5,705
QuoteOriginally posted by bull drinkwater Quote
passable???????? i'm glad i'm not that finniky, it looks great to me. I've used the 300mm with both the 1.4x and the 2.0x at 1600 iso with pleasing { to me} results.
I'm otherwise an obligate ISO100 shooter, but at least I know I can bump it up when necessary. At pixel level viewing, the noise pattern is rather pleasing, fwiw.
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!
645d, 645z, camera, image, image quality, iso, medium format, quality, quality using iso
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
How good is the K5 image quality vs a 5D MKII pjtn Pentax K-5 128 04-22-2011 01:58 PM
Image quality drop from ISO 12800 to 25600 on K-5 Adam Pentax K-5 12 11-21-2010 03:30 PM
How close is the K20D and K-7 on image quality? justtakingpics Pentax DSLR Discussion 67 05-29-2010 03:27 PM
final firmware and high-iso image quality mattdm Pentax News and Rumors 28 06-16-2009 12:12 PM
How is the quality of ISO 3200 shots? Ole Photographic Technique 1 09-08-2006 06:21 AM



All times are GMT -7. The time now is 11:11 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