Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
10-07-2019, 11:27 AM   #76
Digitiser of Film
Loyal Site Supporter
BigMackCam's Avatar

Join Date: Mar 2010
Location: North East of England
Posts: 20,574
QuoteOriginally posted by peggers Quote
Interesting set of opinions here. On this subject, what do the folk here use for in camera noise reduction? Do you use it at all? If you do use it what settings do you use?
When shooting JPEG with any camera, I switch off noise reduction and sharpening or reduce them to the minim possible settings. In-camera noise reduction settings usually only apply to luminance noise (i.e. "grain", for want of a better term) rather than colour. Switching it off results in the maximum possible detail being recorded, and you can always add gentle luminance noise reduction and sharpening in post-processing if required.

10-07-2019, 09:54 PM   #77
Forum Member




Join Date: Apr 2016
Location: Arjeplog
Posts: 93
usually I try to keep the ISO as low as possible - I'm shooting mainly landscapes, mostly taking my time to set up a tripod...but I go higher when action is involved (moving water, wildlife in general, cars) or when it comes to low light (aurora, concerts)

on my K-3 I used 3200 as a maximum- when shooting aurora or concerts, but if possible I kept it lower- the noise simply was quickly becoming unpleasant. I do however accept a bit of noise when doing black and white...
on my K-1 I allow for a higher ISO, currently I allow go up to an ISO of 5000 when shooting aurora, and allowing a bit more ISO for action (if needed)....
10-19-2019, 09:25 PM   #78
Site Supporter
Site Supporter
bkpix's Avatar

Join Date: Feb 2010
Location: Creswell, Oregon
Photos: Albums
Posts: 568
I've had good results with my KP as high as ISO 20000, provided exposure is correct. The in-camera JPEGs are very well done for high ISO.
12-12-2019, 06:27 PM - 1 Like   #79
Senior Member




Join Date: Aug 2019
Posts: 106
Sensor Accelerators?

QuoteOriginally posted by UncleVanya Quote
Given that most of us shoot with sensors that are ISO Invariant I wonder if we put too much thought into this if we are shooting raw.
I'm not sure some of the newer cameras are ISO invariant anymore. Do you know? I'd be curious. I looked at the dynamic range vs iso chart at photonstophotos and the KP and K1 ii both show non-linear dependence. I suspect this is due to the accelerator on these newer cameras, but I don't know. Input from others would be useful.

For what it's worth, I took a handful of shots with my KP at varying ISO and then increased exposure in post to have them all match. I found in my small test that I got better results by raising ISO in camera to expose correctly up front.

12-13-2019, 07:56 AM   #80
Loyal Site Supporter
Loyal Site Supporter
UncleVanya's Avatar

Join Date: Jul 2014
Photos: Gallery | Albums
Posts: 28,175
QuoteOriginally posted by eric3929 Quote
I'm not sure some of the newer cameras are ISO invariant anymore. Do you know? I'd be curious. I looked at the dynamic range vs iso chart at photonstophotos and the KP and K1 ii both show non-linear dependence. I suspect this is due to the accelerator on these newer cameras, but I don't know. Input from others would be useful.

For what it's worth, I took a handful of shots with my KP at varying ISO and then increased exposure in post to have them all match. I found in my small test that I got better results by raising ISO in camera to expose correctly up front.
I thought the raw sensors were still largely invariant but I shoot a k-3 so I can't verify your results given the lack of accelerator. I think the accelerator would complicate determining the effects of iso on the sensor.
12-21-2019, 05:14 AM   #81
Veteran Member




Join Date: Jan 2009
Location: walking in the air
Posts: 1,315
With KP from time to time ISO12800. Usually 6400 is the maximum value.
12-21-2019, 07:30 AM   #82
Loyal Site Supporter
Loyal Site Supporter




Join Date: Apr 2008
Location: Central NY, USA
Posts: 963
With my old K-7, ISO 2,500 was the maximum I would go too. With the K-3 I could push it a little higher, and have some usable sports shots at ISO 12,800 (just don't enlarge them much). However, I like to stay below ISO 3,200 (or possibly 6,400 on the K-70).

12-21-2019, 07:53 AM   #83
Pentaxian
reeftool's Avatar

Join Date: Dec 2007
Location: Upstate New York
Photos: Gallery | Albums
Posts: 9,543
When I first switched to digital and purchased a K10D, I generally stayed at ISO 400 or under and would occasionally shoot at 800. The max of ISO 1600 wasn't really usable unless I wanted a grainy B&W look. The higher ISO capability of the K5 was what led me to upgrade. I now feel comfortable shooting at ISO 1600 for anything and have had usable shots at up to ISO 12800 although I hold to the rule that the lowest ISO needed is what you should use.
12-21-2019, 12:37 PM   #84
Site Supporter
Bengan's Avatar

Join Date: Nov 2012
Location: Stockholm
Photos: Gallery | Albums
Posts: 1,756
I rarely go above 6400
12-21-2019, 04:13 PM   #85
Site Supporter
Site Supporter
Ex Finn.'s Avatar

Join Date: Nov 2007
Location: Southern Maryland. Espoo. Kouvola.
Photos: Gallery | Albums
Posts: 7,960
12 800 is good on the KP, 800 on K7,1600 K5.
12-21-2019, 05:01 PM   #86
Pentaxian
reh321's Avatar

Join Date: Nov 2014
Location: South Bend, IN, USA
Photos: Gallery | Albums
Posts: 23,126
QuoteOriginally posted by UncleVanya Quote
Given that most of us shoot with sensors that are ISO Invariant I wonder if we put too much thought into this if we are shooting raw.
Very much so. Last summer I miss-set my K-30, then photographed an usual {to me} train locomotive that went by. I read the photo into RawTherapee, and I doubt if anyone will recognize that I in essence doubled {or more} the ISO post-facto. I normally don't do that - but I will if I have no other way of saving the situation.

added: I took another photo {below} on a jaunt that I had to drastically reduce the exposure, but RawTherapee worked there too.
Attached Images
View Picture EXIF
PENTAX KP  Photo 

Last edited by reh321; 12-21-2019 at 05:08 PM.
12-21-2019, 05:13 PM   #87
Loyal Site Supporter
Loyal Site Supporter
UncleVanya's Avatar

Join Date: Jul 2014
Photos: Gallery | Albums
Posts: 28,175
QuoteOriginally posted by reh321 Quote
Very much so. Last summer I miss-set my K-30, then photographed an usual {to me} train locomotive that went by. I read the photo into RawTherapee, and I doubt if anyone will recognize that I in essence doubled {or more} the ISO post-facto. I normally don't do that - but I will if I have no other way of saving the situation.

added: I took another photo {below} on a jaunt that I had to drastically reduce the exposure, but RawTherapee worked there too.
To be fair doubling iso is only one stop. That is a pretty minor adjustment. But it does make the point that post adjustment can be pretty painless.
01-09-2020, 10:22 AM - 1 Like   #88
Site Supporter
SpottyReputation's Avatar

Join Date: Oct 2019
Location: Abbotsford, BC
Photos: Albums
Posts: 210
My answer may be slightly more analog- a few years ago my answer would've been 200. I have stopped using fuji superia (it's no longer cheaper...), and now would be confident in going up to 400 (at least in portra). If i had full control of the sun (would be a neat party trick), i would only shoot at 100.


That being said, i am venturing into the iso800 world, and will see what sort of results I can get.
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!
beach, dslrs, iso, moment, penguin, photography, post, shot, slider
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
People K-5 high ISO... how high can we really go... igor Post Your Photos! 2 03-24-2012 01:10 AM
Example of AF, DR, high ISO and high shutter speed on K-5 benisona Pentax DSLR Discussion 17 11-30-2010 02:25 PM
People High iso is not too bad. bergwerk Post Your Photos! 5 09-19-2010 12:06 PM
K-7 high ISO vs K20D high ISO supa007 Pentax DSLR Discussion 72 05-10-2010 04:24 PM
Night photography with K10D - High ISO short exposure VS Low ISO long exposure pw-pix Pentax DSLR Discussion 10 02-03-2008 01:37 AM



All times are GMT -7. The time now is 03:23 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