Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
12-06-2012, 06:35 PM   #16
Veteran Member
frank's Avatar

Join Date: Nov 2006
Location: Singapore
Photos: Gallery
Posts: 3,202
It's not just noise only. K7's DR is pretty bad at high ISO, even at ISO800 its DR is pretty bad.

12-07-2012, 09:44 AM - 1 Like   #17
Forum Member
alcstudios's Avatar

Join Date: Sep 2011
Location: Texas
Photos: Albums
Posts: 85
This is not SPAM as I don't sell photos... Everything on my site www.alcstudios.com was shot with a horrible worthless piece of junk K7, maybe I should upgrade to an Iphone<<<< Sarcasm
12-08-2012, 08:11 AM   #18
Veteran Member
ihasa's Avatar

Join Date: Jul 2009
Location: West Midlands
Photos: Gallery
Posts: 2,054
The K7 does fantastically well where you can control the exposure (e.g. studio flash), but IQ does drop off at higher ISOs or when you lighten the shadows or correct underexposure too much. However as a former K7 owner, I think the issues are overblown, and I don't see any evidence it's noticeably worse than the K20D. It's easily good enough for pro use, as your pictures demonstrate!
12-08-2012, 08:47 AM   #19
Site Supporter




Join Date: Mar 2009
Location: Gladys, Virginia
Photos: Gallery
Posts: 16,217
QuoteOriginally posted by frank Quote
It's not just noise only. K7's DR is pretty bad at high ISO, even at ISO800 its DR is pretty bad.
This is the biggest difference between the K5 and K7. Not visible in low dynamic range situations. You can reduce noise in most images with today's software, but there is no bringing back dynamic range that is missing.

01-12-2013, 05:45 PM   #20
Veteran Member




Join Date: Sep 2007
Photos: Gallery
Posts: 975
QuoteOriginally posted by airtraffic Quote
I was a Pentax fan ever since I got my first Pentax DSLR by accident when a neighborhood Ritz camera store closed down and sold me the K10D at a fire sale price. I liked the K10, and thought the K20D would be even better. I hated the K20D. I sold that and bought the K7 when it came out and LOVED it! (Still do!) I have not noticed noise to be a big problem. Yes, the autofocus hunts in low light, but I still love the images I get from it. Now that the K5 II has driven the prices down to about $750 on the K5, I picked one up from Adorama to try it out.

I shot the K5 side by side with my K7 for the last week or so. To me, it seems the upgrade price is not worth switching from the K7 to the k5 or the K5 II. I plan to take my K5 back to Adorama today and keep shooting with the K7. That's knowing I could sell the K7 for about $400-$450, making my final cost of a K5 about $300-$350.

If I still had my K10 or K20 I'd either get a K7 at a great price or upgrade to the K5 if money were not an issue. I've shot the K7 up to about 800 ISO and really not had any adverse noise issues. (I don't plan to shoot regularly above 800.)
you have got to be kidding. there's nothing wrong with the k7 and it's sensor, despite what "everybody" says, i have the k20d and love it, and am in no hurry to part with it. but i paid full release price for the k-5, and am not sorry to this day, that sensor was a few years ahead of it's time 2 years ago when it was released. it's not just stellar high iso, but also dynamic (exposure) range which is simply in a class of it's own (some 35mm sensor cameras can't keep up, this should not be so.). that sensor and camera is so good it almost makes things too easy.

i suggest you keep shooting the k-5, and make your mind up carefully, it's worth every damn penny, it is the k7, but without chance of finding flaw with
01-12-2013, 06:23 PM   #21
Veteran Member




Join Date: Jan 2011
Location: Minahasa, North Celebes (Sulawesi)
Photos: Albums
Posts: 585
Original Poster
I have K-5 now, thanks all!
01-14-2013, 11:12 PM   #22
Senior Member




Join Date: Jun 2010
Location: California
Photos: Albums
Posts: 248
Congratulations! I like K-x more than K-7. I'd guess K-r or K-30 will be good enough. I always use second hand high end bodies and very happy because I can try and sell it without breaking my bank account like new full priced bodies.

Manual lenses on pentax is still not that enjoyable with M and m42 lens by the green button for me. And good "A" prime lenses are so expensive to get. I recently tried Nikon and very happy with the manual focus lenses. It has aperture feeler so that many nikkor Ai, Ais lenses can be used and metered in A mode directly. I feel that's a true compatibility unlike the pentax-m lenses' mediocre solution.

My 2 cents,
01-15-2013, 06:45 AM   #23
Veteran Member




Join Date: Oct 2012
Posts: 355
My K-r seems to meter fine in aperture priority mode with manual lenses, you can meter in manual mode, use the green button and/or use EC or bracketing. Honestly, the K-r is light years better than the K10d with manual lenses. I really don't see it as taking any enjoyment away from the experience, but then again I like to shoot in manual mode with manual focus.

That said, even the K10 will do a decent job with a simple ev adjustment used with center weighted or spot metering once you understand how the camera will react to the lenses wide open (+EV) v stopped down (-EV) since it doesn't know there is a lens attached. That said, I found that manual mode on the K10 is even easier to use with old M42 glass.

The K-r also amazes me as i have printed usable images at ISO 12800 taken handheld in near darkness. That was unthinkable with the K10d which to me seemed a little noisy even at ISO 400.

Wish I could help with the K7, but I don't have experience with that model.


Last edited by bucfan1234; 01-15-2013 at 02:04 PM.
01-16-2013, 03:04 AM   #24
Pentaxian




Join Date: Mar 2009
Location: Perth Australia
Photos: Albums
Posts: 1,511
The K20D outperformed the K-7 because the K-7 has the same sensor but with a 4 channel read out so that it could do video... this compromised the still image performance slightly.
01-16-2013, 11:48 AM   #25
New Member




Join Date: Jul 2012
Posts: 2
Not good,up to iso 800 too bad
01-16-2013, 11:56 AM   #26
Veteran Member
FrancisK7's Avatar

Join Date: Sep 2007
Location: Montreal
Photos: Gallery
Posts: 474
I cannot vouch for the K7 but I can tell you the K5 is FANTASTIC at high ISO, even 3200, in broad daylight. Not so much in low light.

Compared to my K10D, the K5 is a Lamborghini and my K10D a beat up Russian piece of a crap when it comes to ISO performance.
01-16-2013, 01:16 PM   #27
Veteran Member
Ikarus's Avatar

Join Date: Apr 2010
Location: California
Photos: Albums
Posts: 471
In a pinch, I'm finding my K-x quite usable at ISO 3200, the K-01 even at ISO 6400. This is from the K-01 at 6400 with a bit of post processing in LR, so I would expect the K-5 to do at least as well.


01-16-2013, 07:16 PM   #28
Pentaxian
Digitalis's Avatar

Join Date: Mar 2009
Location: Adelaide.
Posts: 8,795
Let me put it this way , there are a few cameras better than the K7 - but there aren't many APS-C format cameras that are categorically worse than the K7 when it comes to High ISO shooting. After a few weeks with my K5IIs I'm extremely impressed with the quality of its images even at 12800 - the grain reminds me of fuji ISO1600 colour negative film.
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, iso, k7, k7 high iso, performance, photography
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Is the DA 18-135 really that bad? Rich7333 Pentax SLR Lens Discussion 22 09-17-2012 10:18 AM
Is the SDM failure rate really that bad coreyhkh Pentax SLR Lens Discussion 108 07-21-2012 07:33 PM
People K-5 high ISO... how high can we really go... igor Post Your Photos! 2 03-24-2012 01:10 AM
People High iso is not too bad. bergwerk Post Your Photos! 5 09-19-2010 12:06 PM
K10D high iso ain't that bad?? Vaizard Pentax DSLR Discussion 4 03-02-2008 07:12 PM



All times are GMT -7. The time now is 01:38 AM. | 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