• Members 240 posts
    May 14, 2023, 9:26 p.m.

    It's nothing to do with nastiness from older folk IMO. Perhaps it's more that it's older folk that tend to frequent forums.

    Maybe there's an unwillingness to change as we get older though. Partly because we give up learning new tricks. And partly because we're happy with the tricks we already have. They're hard learnt from life's ups and downs. And, crucially, we know they work for us.

    Relating this back to photography I'd say this. After 40 years starting with film I've always had an interest in theory. I want to learn every nuance of my camera for example. But I'm not a technical expert, let alone a scientist or electrical engineer. I just want to master nailing the shots I need, and I do.

    Lat time I looked, you don't need to be a scientist or electrical engineer to be an amazing photographer. In fact, many amazing photographers don't give a monkeys about theory, let alone frequent forums.

    Science and theory is great. We all learn something new every day. We evolve accordingly.

    BUT what we don't tend to do is change something that works for us simply because somebody else implies that we're daft if we don't.

    We make informed decisions instead.

    Absorbing facts that you didn't know before is great. With age and wisdom you are increasingly equipped to adopt or ignore new knowledge. Depending on your own needs and acquired wisdom.

  • Members 976 posts
    May 14, 2023, 9:29 p.m.

    I posted both, nothing was faked, contrary to what you claimed, and all the markers were in place - which histogram was of raw data, and which was of embedded JPEG.

    The view of embedded JPEG with its histogram was there to show that both the look of embedded JPEG and JPEG histogram are deceptive when it comes to raw, and the next screenshot, from the raw data in the same file, proves it.

  • Members 2294 posts
    May 14, 2023, 9:35 p.m.

    Your Quote " Well, here is from one of raw files Donald posted for everyone to see:" you made a mistake ,get over it and move on.

  • Members 976 posts
    May 14, 2023, 9:44 p.m.

    JPEG is embedded into the raw. The mistake isn't mine, it's yours.

  • Removed user
    May 14, 2023, 10:01 p.m.

    ARW files contain an embedded JPEG. FastRawViewer has an option to display embedded JPEGs together with their histograms.
    [/quote]

    OK, now it is clear. thank you, Iliah.

    I've not used FRV because of the X3F thing.

  • Members 2294 posts
    May 14, 2023, 10:06 p.m.

    you then proceeded to manipulate the jpeg not the raw, as Jim pointed out he had no problems with pulling back the highlights because he was working on the raw file i posted.

  • Members 976 posts
    May 14, 2023, 10:09 p.m.

    No. Enough, no?

  • Members 2294 posts
    May 14, 2023, 10:28 p.m.

    Im devastated 😒 was taking the dog for a walk and looking over the islands, the sun shinning through the clouds and lighting up the water, so a ran home picked up my camera and came back to shoot some real worlds keeper shots. using the detailed histogram that i see on the LCD panel. but only to discover that i cant view them in the EVF 🤨🤷‍♀️😮😮 how disappointing, only the tiny little one is shown in the EVF. 😒anyway later i will see if i have the other screen layout turned off in my camera for the EVF.

  • Members 3675 posts
    May 14, 2023, 10:55 p.m.

    Exactly :-)

    DonaldB is a proven liar many times over on dprevived.

    He has plagiarised another member's work and he has altered my posts in some of his quotes of them. He has a history of faking images to push whatever agenda he is pushing at the time.

    He has zero credibility and it's really good to see more people are seeing the type of person he is :-)

  • Members 976 posts
    May 14, 2023, 11:10 p.m.

    I think we are in this thread to discuss technical matters.

  • Members 1737 posts
    May 14, 2023, 11:15 p.m.

    That is gratuitous, and ad hominem.

  • Members 3675 posts
    May 14, 2023, 11:29 p.m.

    But the fact is that what I said is true.

    Everyone can see his posts and interpret them as they see fit which they are entitled to do, are they not ?

  • Members 2294 posts
    May 14, 2023, 11:44 p.m.

    Well , im very happy with the test results (image is crap) from probably the most extreme conditions possible. i used the tiny evf histogram with the zebras that were ever so slightly flashing as i have the range set to "1" 109+
    done with testing back to work tomorrow.

    Sony a74

    image link 1drv.ms/i/s!ArStsPjQ301PmTNT5joN5ktkuNkW?e=F2ZhoK

    i placed the eye dropper on the brightest part of the 16 bit file

    1405.jpg

    1405 frv.jpg

    1405.jpg

    JPG, 696.2 KB, uploaded by DonaldB on May 14, 2023.

    1405 frv.jpg

    JPG, 398.2 KB, uploaded by DonaldB on May 14, 2023.

  • Members 14 posts
    May 15, 2023, 12:10 a.m.

    I did a similar test, though not nearly as rigorous, some time ago between the clipping shown on an OM-1 with that shown in Lightroom on raws. It showed the same difference of 1.67 stops. Coincidental or not, I don't know. I assumed the camera based its clipping on the jpeg EVF image and Lightroom on the raw image. Maybe my assumption was erroneous, but I wanted to know what headroom I had with raws.

  • Members 3675 posts
    May 15, 2023, 12:28 a.m.

    The EVF histogram will be based on whatever the camera's settings are at the time. The camera might apply some highlight protection, noise reduction and will use the current 'picture style' and WB settings in the camera. All of these could be significantly different to what a raw converter app does to initially render raw data.

    I know I can safely add 1/3 to 1/2 stop of exposure* from where my camera histogram indicates clipping before the raw data is actually clipped.

    * exposure - amount of light that struck the sensor per unit area while the shutter was open.

  • Members 3675 posts
    May 15, 2023, 12:46 a.m.

    You are still proving my point that you cannot even troll properly 🤣🤣😎

    We'll just have to disagree on the definition of exposure*

    Your funny and childish attempts to insult people have no effect except making you look weak, immature and stupid in my eyes 😍😍😎

    * exposure - amount of light that struck the sensor per unit area while the shutter was open
    ** optimal exposure - the maximum exposure* within dof and motion blur requirements without clipping important highlights.
    *** under exposed - more exposure* could have been added with the DOF and blur constraints still being met without clipping important highlights.

  • Members 128 posts
    May 15, 2023, 12:55 a.m.

    One can't disagree on a definition of exposure, you simpleton. Don't you know how languages work? There is ONE proper definition for any given use of a word, DannoDoesntUnderstandGrammar. One is right. The others are lies.

    Your definition of exposure is a lie.

    Perhaps if you understood the correct definition of exposure you might be able to take better photos.

    This is a lie because when my camera is in silent shutter mode light strikes the sensor while the shutter is open and that light does not contribute to the exposure.

    @bobn2 how long are you going to let your top poster lie about exposure? Because I am pretty sure people are going to see this and decide they are better off at that other DPReview spin off, no matter how lame it is (and it's pretty bloody lame).

    These two definitions are also LIES but I am not going to explain why until you admit that you are lying about the basic definition of exposure.

    You are in no position to lecture anyone about photography and yet here you are. This is so lame. No wonder everyone on all the other forums laughs at DPRevived! This place is DOOMED unless the moderators learn about photography and grow a pair.

    PS Stop lying about exposure. You are wasting all the time and money that the moderators have put into this site. Do you think they are paying just to get their butt kissed by you? But maybe that's what they like.

  • Members 3675 posts
    May 15, 2023, 1:01 a.m.

    You are still proving my point 😍😎