Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
08-01-2015, 10:10 AM   #1
Senior Member
BATMON's Avatar

Join Date: Aug 2013
Posts: 160
Auto Iso Settings?

I usually shoot in TAV and keep the auto iso settings from 100 - 1600.

Should I just open it up from 100 - 51200?

Im using a K-50.

I recently moved it to 51200, and I was getting noisy photos when shooting a friend in warm light/nighttime/apt shots.

08-01-2015, 10:20 AM   #2
Pentaxian
MJSfoto1956's Avatar

Join Date: Dec 2013
Location: Boston
Posts: 1,287
I limit my K-3 to ISO 3200 which uses a more "modern" processor than the K-50.
I think ISO 1600 is the sweet spot, but you can always experiment -- keep in mind high ISO affect print SIZE more than anything.
As long as your print size is small (e.g. 4"x6") leveraging high ISO to keep the image sharp is a smart strategy.

As a reminder, "back in the day" ISO 400 was consider high speed!

Michael
08-01-2015, 10:28 AM   #3
Senior Member
BATMON's Avatar

Join Date: Aug 2013
Posts: 160
Original Poster
Cool.
08-01-2015, 12:27 PM   #4
Administrator
Site Webmaster
Adam's Avatar

Join Date: Sep 2006
Location: Arizona
Photos: Gallery | Albums
Posts: 42,278
QuoteOriginally posted by BATMON Quote
I usually shoot in TAV and keep the auto iso settings from 100 - 1600.

Should I just open it up from 100 - 51200?

Im using a K-50.

I recently moved it to 51200, and I was getting noisy photos when shooting a friend in warm light/nighttime/apt shots.
I wouldn't leave auto ISO higher higher than 3200, maybe 6400.


Adam
PentaxForums.com Webmaster (Site Usage Guide | Site Help | My Photography)



PentaxForums.com's high server and development costs are user-supported. You can help cover those costs by donating. Or, buy your photo gear from our affiliates, Adorama, B&H Photo, or Topaz Labs, and get FREE Marketplace access - click here to see how! Trusted Pentax retailers:

08-01-2015, 07:13 PM   #5
Pentaxian




Join Date: May 2015
Location: New Orleans
Photos: Gallery
Posts: 374
on my k-s2 I say in low light 3200 is pushing it. In bright light stopping down for dof I think, 6400 can work but those pics are still on the card unprocessed.
08-02-2015, 12:53 PM   #6
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 27,105
QuoteOriginally posted by Adam Quote
I wouldn't leave auto ISO higher higher than 3200, maybe 6400.
I concur. That being said, I have mine set to the range 100-6400, but seldom use auto-ISO. When I do so, it is usually for situations where I am willing to spend the time on noise reduction in PP.


Steve
08-10-2015, 08:31 AM   #7
Junior Member




Join Date: May 2015
Location: Karzcino (nearby Baltic seaside)
Photos: Gallery
Posts: 26
A noising is the matter of photographer, I think . I did some tests - the same object (a few things in my kitchen) from tripod in ISO from 100 to max. In JPEG and RAW. The second test is a portrait of humen.So now, if I want use JPEG only, for things I use 100-6400 and to photo people - 100-800. Night shots of lights of city can be made even in higher ISO. When I want to work in LR with noise reduction, then I can use higher ISO too.
That is for K-3.
08-10-2015, 12:24 PM   #8
Pentaxian
mcgregni's Avatar

Join Date: Sep 2012
Location: Surrey, England
Posts: 1,733
From a shooting 'priority' point of view, then auto -iso logically is for times when both aperture and shutter time value are a higher 'priority' than image quality. Tav is the priority mode to choose in those situations (time and aperture value as the priorities).



This would apply to scenes where you need to maintain a certain depth of field as well as capture specific motion effects.



Personally, I feel, that auto-iso should be avoided apart from those dual priority situations. In the name of extracting the best from our cameras it should be the aim to shoot at the lowest ISO compatible with steady handholding (dependent on focal length mostly).



I don't think it really should be used as an easy way of getting automatic exposures, or at least not with a wide auto-iso range. I suppose really, the range should be adjusted specifically for each time you need it, not set as some kind of generic camera default

08-11-2015, 01:16 AM   #9
Pentaxian
Fogel70's Avatar

Join Date: Sep 2009
Location: Stockholm, Sweden
Photos: Albums
Posts: 1,740
QuoteOriginally posted by BATMON Quote
I usually shoot in TAV and keep the auto iso settings from 100 - 1600.

Should I just open it up from 100 - 51200?

Im using a K-50.

I recently moved it to 51200, and I was getting noisy photos when shooting a friend in warm light/nighttime/apt shots.
In TAv mode it should be safe to use whole ISO range, as ISO will depend on what you manually set shutter speed and aperture to.
If the camera choose higher ISO then than you prefer, you need to use slower shutter speed or larger aperture. If you cannot, then there are simply to little light available to use lower ISO. Limiting the ISO range in TAv will only add risk of underexposure.

If using semi-automatic modes you might want to limit ISO range as you do not have full control over shutter speed and aperture, but you can also try setting "auto ISO parameters" to slow, so the camera FI will use slower shutter speed before it start to raise the ISO (in Av mode).
08-11-2015, 03:38 AM   #10
Veteran Member




Join Date: Nov 2011
Photos: Gallery | Albums
Posts: 451
Nowadays we often view our shots on large monitors, or even on big TV screens. I think we should implement a new rule - if you think the shot is a bit noisy, don't lean forwards to check the noise, lean backwards and look at the image!
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!
auto, auto iso, camera, iso, pentax help, photography, troubleshooting
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
ISO Settings willskywalker93 Pentax K-3 4 12-02-2014 02:21 PM
Seeking guidance on K-3 Auto ISO and Program Line settings IchabodCrane Pentax K-3 3 09-06-2014 04:14 PM
Auto ISO bscott Pentax K-3 3 04-20-2014 12:14 PM
K7 ISO Settings Problem PenPusher Troubleshooting and Beginner Help 4 04-15-2014 03:30 PM
[Auto-ISO] so, is the K5 and Kr brave enough to use max iso? Reportage Pentax K-5 13 10-24-2010 03:30 PM



All times are GMT -7. The time now is 05:25 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