the last word

Photography meets digital computer technology. Photography wins -- most of the time.

  • site home
  • blog home
  • galleries
  • contact
  • underwater
  • the bleeding edge
You are here: Home / The Last Word / Sony a6300 — pushing in post at low ISOs, single shot shutter

Sony a6300 — pushing in post at low ISOs, single shot shutter

March 17, 2016 JimK 2 Comments

This is part of a long series of posts about the Sony a6300. The series starts here.

So now I’m going to do a series like that of the preceding post, but with a big difference. I’m going to leave the exposure the same, vary the ISO in full stop intervals, and push the images in post to make them have equal brightness.

I started at ISO 3200 with a normal exposure, left that exposure the same, and made images at ISO 1600, 800, 400, 200, and 100. Then, in Lightroom, I pushed the ISO 1600 image one stop, the ISO 800 image two stops, and so on, until I got to the ISO 100 image, which got a five stop push.

Here is a large view of the result:

ISO 3200
ISO 3200
ISO 1600
ISO 100
ISO 800
ISO 200
ISO 400
ISO 400
ISO 200
ISO 800
ISO 100
ISO 1600

Not a lot of difference, huh? Let’s zoom in on a 200% blowup:

ISO 3200
ISO 3200
ISO 1600
ISO 100
ISO 800
ISO 200
ISO 400
ISO 400
ISO 200
ISO 800
ISO 100
ISO 1600

Not much difference, either. There should be shadow noise differences, though, since this series crosses the ISO 320/400 conversion gain transition point for the sensor.

Let’s add a really hamfisted +100 Shadow move to all the images:

ISO 3200
ISO 3200
ISO 100
ISO 100
ISO 200
ISO 200
ISO 400
ISO 400
ISO 800
ISO 800
ISO 1600
ISO 1600

The first thing to notice is how noise-free these images are. The next thing is that the images are pretty ISOless from ISO 3200 through ISO 400, but that once we cross that conversion gain change point, we pick up some noise.

 

 

The Last Word

← Sony a6300 — underexposure and pushing in post Sony a6300 — pushing in post at higher ISOs, single shot shutter →

Trackbacks

  1. Sony a6300 — pushing in post at higher ISOs, single shot shutter | The Last Word says:
    March 17, 2016 at 1:46 pm

    […] I’m going to do a test similar to the one in the preceding post, except that I’m going to start at ISO 12800. That’s the first ISO where the camera […]

    Reply
  2. Sony a6300 — pushing in post at low ISOs, continuous shutter | The Last Word says:
    March 18, 2016 at 10:19 am

    […] You can compare this test to a similar run I posted yesterday with single shot shutter mode. […]

    Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

March 2023
S M T W T F S
 1234
567891011
12131415161718
19202122232425
262728293031  
« Jan    

Articles

  • About
    • Patents and papers about color
    • Who am I?
  • Good 35-70 MF lens
  • How to…
    • Backing up photographic images
    • How to change email providers
  • Lens screening testing
    • Equipment and Software
    • Examples
      • Bad and OK 200-600 at 600
      • Excellent 180-400 zoom
      • Fair 14-30mm zoom
      • Good 100-200 mm MF zoom
      • Good 100-400 zoom
      • Good 100mm lens on P1 P45+
      • Good 120mm MF lens
      • Good 18mm FF lens
      • Good 24-105 mm FF lens
      • Good 24-70 FF zoom
      • Good 35 mm FF lens
      • Good 60 mm lens on IQ3-100
      • Good 63 mm MF lens
      • Good 65 mm FF lens
      • Good 85 mm FF lens
      • Good and bad 25mm FF lenses
      • Good zoom at 24 mm
      • Marginal 18mm lens
      • Marginal 35mm FF lens
      • Mildly problematic 55 mm FF lens
      • OK 16-35mm zoom
      • OK 60mm lens on P1 P45+
      • OK Sony 600mm f/4
      • Pretty good 16-35 FF zoom
      • Pretty good 90mm FF lens
      • Problematic 400 mm FF lens
      • Tilted 20 mm f/1.8 FF lens
      • Tilted 30 mm MF lens
      • Tilted 50 mm FF lens
      • Two 15mm FF lenses
    • Found a problem – now what?
    • Goals for this test
    • Minimum target distances
      • MFT
      • APS-C
      • Full frame
      • Small medium format
    • Printable Siemens Star targets
    • Target size on sensor
      • MFT
      • APS-C
      • Full frame
      • Small medium format
    • Test instructions — postproduction
    • Test instructions — reading the images
    • Test instructions – capture
    • Theory of the test
    • What’s wrong with conventional lens screening?
  • Previsualization heresy
  • Privacy Policy
  • Recommended photographic web sites
  • Using in-camera histograms for ETTR
    • Acknowledgments
    • Why ETTR?
    • Normal in-camera histograms
    • Image processing for in-camera histograms
    • Making the in-camera histogram closely represent the raw histogram
    • Shortcuts to UniWB
    • Preparing for monitor-based UniWB
    • A one-step UniWB procedure
    • The math behind the one-step method
    • Iteration using Newton’s Method

Category List

Recent Comments

  • Mal Paso on Christmas tree light bokeh with the XCD 38V on the X2D
  • Sebastian on More on tilted adapters
  • JimK on On microlens size in the GFX 100 and GFX 50R/S
  • Kyle Krug on On microlens size in the GFX 100 and GFX 50R/S
  • JimK on Hasselblad X2D electronic shutter scan time
  • Jake on Hasselblad X2D electronic shutter scan time
  • Piotr Chylarecki on Who am I?
  • JimK on Who am I?
  • Piotr Chylarecki on Who am I?
  • Stefan on Swebo TC-1 OOBE

Archives

Copyright © 2023 · Daily Dish Pro On Genesis Framework · WordPress · Log in

Unless otherwise noted, all images copyright Jim Kasson.