DPRevived & The Photo
  • Web Site
  • chevron_right Threads
  • label All Forums
  • label techniques Photographic Techniques
  • label General General Techniques and ideas

Education continues

IliahBorg
June 6, 2023
chat_bubble_outline 189
first_page chevron_left
chevron_right last_page
first_page chevron_left
chevron_right last_page
  • link
    DonaldB
    Members 2365 posts
    June 9, 2023, 10:03 p.m. June 9, 2023, 10:03 p.m.
    link
    @xpatUSA has written:
    @IliahBorg has written:
    @Sagittarius has written:
    @bobn2 has written:
    @Sagittarius has written:

    If I am shooting 1/50 f/5.6 at ISO 100 for the lighting conditions. If I will shoot at 1/2000 f/5.6 in the same lighting conditions at ISO 100, I will get a pitch black image or close to it. So I will have to increase ISO in order at least to see what I captured.

    I think that the problem here is the thinking behind the words 'have to'. ISO is a guide to setting exposure. The photographer has freedom of decision both with respect to the exposure controls and the processing decisions. You don't 'have to' follow the guide. You might choose to do something. If you're making a choice, it's best to know what's underlying that choice.

    Either you changing ISO in camera or pushing in PP, you still changing it to achieve desired lightness.

    Another way to "push" is to make the monitor brighter.

    Excellent! My monitor is set to put out 80 cd/m^2 in my dim room, so I could crank it back up to 300 and get a 'push' of 1.9 EV.

    wife : dear why are you weraing your sunglasses looking at your images !
    husband: im playing with my new new pair of ND filters 🤣🤣

  • link
    IliahBorg
    Members 976 posts
    June 9, 2023, 10:04 p.m. June 9, 2023, 10:04 p.m.
    link
    @DonaldB has written:

    you cant push a raw image 5 stops without image degrading consequences.

    And what do you think ISO + 5 stops does other than push?

  • link
    finnan
    Members 322 posts
    June 9, 2023, 10:11 p.m. June 9, 2023, 10:11 p.m.
    link

    HAND.

  • link
    JimKasson
    Members 1738 posts
    June 9, 2023, 10:14 p.m. June 9, 2023, 10:14 p.m.
    link
    @DonaldB has written:

    you cant push a raw image 5 stops without image degrading consequences.

    _DSF5876.jpg

    _DSF5880.jpg

    _DSF5880.jpg

    JPG, 225.5 KB, uploaded by JimKasson on June 9, 2023.

    _DSF5876.jpg

    JPG, 221.6 KB, uploaded by JimKasson on June 9, 2023.

    IanSForsyth and IliahBorg like this.

    favorite 2

  • link
    IliahBorg
    Members 976 posts
    June 9, 2023, 10:15 p.m. June 9, 2023, 10:15 p.m.
    link
    @finnan has written:
    @IliahBorg has written:
    @DonaldB has written:

    you cant push a raw image 5 stops without image degrading consequences.

    And what do you think ISO + 5 stops does other than push?

    A push with less image degrading consequences?

    E.g. dual ISO.

    Still a push.

    TonyBeach likes this.

    favorite 1

  • link
    JimKasson
    Members 1738 posts
    June 9, 2023, 10:21 p.m. June 9, 2023, 10:21 p.m.
    link
    @finnan has written:
    @IliahBorg has written:

    And what do you think ISO + 5 stops does other than push?

    A push with less image degrading consequences?

    Often, pushing in post yields better IQ than cranking up the ISO.

  • link
    finnan
    Members 322 posts
    June 9, 2023, 10:25 p.m. June 9, 2023, 10:25 p.m.
    link

    HAND.

  • link
    IliahBorg
    Members 976 posts
    June 9, 2023, 10:26 p.m. June 9, 2023, 10:26 p.m.
    link
    @JimKasson has written:
    @finnan has written:
    @IliahBorg has written:

    And what do you think ISO + 5 stops does other than push?

    A push with less image degrading consequences?

    Often, pushing in post yields better IQ than cranking up the ISO.

    That idea that changing ISO setting somehow changes the nature of a photodiode.

  • link
    IliahBorg
    Members 976 posts
    June 9, 2023, 10:28 p.m. June 9, 2023, 10:28 p.m.
    link
    @finnan has written:
    @IliahBorg has written:
    @finnan has written:
    @IliahBorg has written:
    @DonaldB has written:

    you cant push a raw image 5 stops without image degrading consequences.

    And what do you think ISO + 5 stops does other than push?

    A push with less image degrading consequences?

    E.g. dual ISO.

    Still a push.

    So what?

    "you cant push a raw image 5 stops without image degrading consequences."
    So, changing ISO is still a push.

  • link
    finnan
    Members 322 posts
    June 9, 2023, 10:28 p.m. June 9, 2023, 10:28 p.m.
    link

    HAND.

  • link
    yawlenz
    Members 14 posts
    June 9, 2023, 10:30 p.m. June 9, 2023, 10:30 p.m.
    link
    @IliahBorg has written:
    @JimKasson has written:
    @finnan has written:
    @IliahBorg has written:

    And what do you think ISO + 5 stops does other than push?

    A push with less image degrading consequences?

    Often, pushing in post yields better IQ than cranking up the ISO.

    That idea that changing ISO setting changes the nature of a photodiode.

    Are there any clear limits to this IQ retention when the pushing is done in-camera?

  • link
    JimKasson
    Members 1738 posts
    June 9, 2023, 10:31 p.m. June 9, 2023, 10:31 p.m.
    link
    @finnan has written:

    Doesn't the camera manufacturer has more knowledge and more technical resources / alternatives to do that push with less image degrading consequences?

    What can be done in the camera is limited by the computing power and heat dissipation. The computer can execute more complicated algorithms. In addition, if you do the push in post, you can change your mind or use advanced techniques as they become available.

    My philosophy is to never do in camera what can be done at least as well in postproduction.

    IanSForsyth, TonyBeach and IliahBorg like this.

    favorite 3

  • link
    JimKasson
    Members 1738 posts
    June 9, 2023, 10:32 p.m. June 9, 2023, 10:32 p.m.
    link
    @finnan has written:
    @JimKasson has written:

    Often, pushing in post yields better IQ than cranking up the ISO.

    Really that often?

    Quite often. The highlight treatments available in raw developers are much better than the hard clipping that happens in camera.

    IanSForsyth likes this.

    favorite 1

  • link
    JimKasson
    Members 1738 posts
    June 9, 2023, 10:34 p.m. June 9, 2023, 10:34 p.m.
    link
    @finnan has written:

    Are the camera designers to blame that their ISO setting implementation is worse than an accordingly pushed raw file at a lower ISO setting?

    I think not. They have provided a machine that does certain things. It's up to the user to understand what it does and pick the best way to use it.

    TonyBeach likes this.

    favorite 1

  • link
    IliahBorg
    Members 976 posts
    June 9, 2023, 10:38 p.m. June 9, 2023, 10:38 p.m.
    link
    @yawlenz has written:

    Are there any clear limits to this IQ retention when the pushing is done in-camera?

    With lower than ETTR exposure image quality objectively degrades. Retention here needs a definition or at least a criteria.

  • link
    JimKasson
    Members 1738 posts
    June 9, 2023, 10:39 p.m. June 9, 2023, 10:39 p.m.
    link
    @DonaldB has written:

    and you cant push a raw image 5 stops without image degrading consequences.

    Pushing in camera compared to pushing in post, five stops. One to one crops.

    B0001428.jpg

    B0001434.jpg

    B0001434.jpg

    JPG, 729.8 KB, uploaded by JimKasson on June 9, 2023.

    B0001428.jpg

    JPG, 743.1 KB, uploaded by JimKasson on June 9, 2023.

    JohnVickers likes this.

    favorite 1

  • link
    DonaldB
    Members 2365 posts
    June 9, 2023, 10:40 p.m. June 9, 2023, 10:40 p.m.
    link
    @JimKasson has written:
    @DonaldB has written:

    you cant push a raw image 5 stops without image degrading consequences.

    _DSF5876.jpg

    _DSF5880.jpg

    f1 lens for MF 🙄

  • link
    JimKasson
    Members 1738 posts
    June 9, 2023, 10:41 p.m. June 9, 2023, 10:41 p.m.
    link
    @yawlenz has written:

    Are there any clear limits to this IQ retention when the pushing is done in-camera?

    Clipping.

first_page chevron_left
chevron_right last_page
arrow_upward Go to top
  • DPRevived.com is owned and operated by The Photographer's Foundation Limited, registered in England, company number 14795583. Email: management@DPRevived.com
powered by misago