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  • Busted Knuckles's Avatar
    Yesterday, 11:48 PM
    Busted Knuckles replied to a thread ISO Invariance in Open Talk
    Jrista has some heavy cred in the astro stuff on c.rumors, i suspect he gets sensors way more than most. I miss Dans comments always helpful, wish...
    32 replies | 1283 view(s)
  • Karsaa's Avatar
    Yesterday, 09:12 PM
    Just some testing of stacking moon. Apparently have had little issues on exporting or something since the backround is 2 colors =) Near fullmoon...
    1 replies | 62 view(s)
  • DavidEccleston's Avatar
    04-17-2019, 01:20 AM
    DavidEccleston replied to a thread ISO Invariance in Open Talk
    Odd. The 7DmkII has an intervalometer built-in. You would assume any camera after that would also include it, except perhaps the Rebel series...
    32 replies | 1283 view(s)
  • Karsaa's Avatar
    04-16-2019, 06:02 PM
    Karsaa replied to a thread ISO Invariance in Open Talk
    Little off topic but been shooting now milky way and northern lights with my friend who has also the sony a7III. When he's not shooting timelapse etc...
    32 replies | 1283 view(s)
  • Karsaa's Avatar
    04-16-2019, 01:05 PM
    ty ty. Now i need to wait until august before i can try next time. Hopefully have then tracker in my hands also =)
    5 replies | 269 view(s)
  • Minerve101's Avatar
    04-15-2019, 08:12 PM
    Congratulations, Kari! Beautiful image.
    5 replies | 269 view(s)
  • Jayson's Avatar
    04-15-2019, 01:45 PM
    I really like the hills have eyes, but am a sucker for astro. Congrats to Karsaa on his stacking test!
    5 replies | 269 view(s)
  • Kayaker72's Avatar
    04-15-2019, 10:17 AM
    Welcome to TDP forum's "Image of the Week" competition. Each week photographers may submit their images for the title of "Image of the Week." Weekly...
    1 replies | 62 view(s)
  • Minerve101's Avatar
    04-14-2019, 02:23 AM
    Deer eyes by dfwatsoneuro, on Flickr
    5 replies | 269 view(s)
  • Joel Eade's Avatar
    04-13-2019, 10:32 AM
    Joel Eade replied to a thread ISO Invariance in Open Talk
    Maybe different shades of green depending on your sensor:rolleyes:
    32 replies | 1283 view(s)
  • wsmith96's Avatar
    04-12-2019, 07:18 PM
    Sold
    1 replies | 1041 view(s)
  • Kayaker72's Avatar
    04-12-2019, 02:43 PM
    Kayaker72 replied to a thread ISO Invariance in Open Talk
    Ha! Very true about Daniel. Had some great, but very technical, posts (and also great pictures). But I learned a lot from him. His participation...
    32 replies | 1283 view(s)
  • HDNitehawk's Avatar
    04-12-2019, 01:50 PM
    HDNitehawk replied to a thread ISO Invariance in Open Talk
    From the posts so far is it a conclusion that raising the shadows of the 5D IV 4-5 stops is not acceptable, but 3 might be. And Sony and Nikon are...
    32 replies | 1283 view(s)
  • Kayaker72's Avatar
    04-12-2019, 10:25 AM
    One day to vote in a tight race!
    1 replies | 211 view(s)
  • Kayaker72's Avatar
    04-12-2019, 01:23 AM
    Kayaker72 replied to a thread ISO Invariance in Open Talk
    So, just ran some quick tests of my own. Now that I am inside and looking at the pictures, I am pretty sure my neighbor's motion lights came on for...
    32 replies | 1283 view(s)
  • DavidEccleston's Avatar
    04-11-2019, 06:02 PM
    DavidEccleston replied to a thread ISO Invariance in Open Talk
    Yeah, my first impression was more chroma noise too. I wondering, when you apply +3 exposure, and noise reduction, does ACR do the noise reduction...
    32 replies | 1283 view(s)
  • Karsaa's Avatar
    04-11-2019, 05:34 PM
    Karsaa replied to a thread ISO Invariance in Open Talk
    Yeah, i can say that i prefer also shoot with iso i need not twidle with sliders =) I would say +3 gives more color noise. That is what comes when...
    32 replies | 1283 view(s)
  • Kayaker72's Avatar
    04-11-2019, 05:11 PM
    Kayaker72 replied to a thread ISO Invariance in Open Talk
    Ha :) that sounds like another rabbit hole that I could spend awhile exploring. Which software is better. I will say, I did come across the...
    32 replies | 1283 view(s)
  • Karsaa's Avatar
    04-11-2019, 04:13 PM
    Karsaa replied to a thread ISO Invariance in Open Talk
    Here as promised: 6400 4s f/1.8 6400 by Kari, on Flickr"]6400 by Kari, on Flickr 800 4s f/1.8 +3 exposure 800 by Kari, on Flickr
    32 replies | 1283 view(s)
  • HDNitehawk's Avatar
    04-11-2019, 01:30 PM
    HDNitehawk replied to a thread ISO Invariance in Open Talk
    Sounds familiar to the old DR discussions. Sony is obviously better. Most of the discussion is centered around camera bodies. Really that may only...
    32 replies | 1283 view(s)
  • Kayaker72's Avatar
    04-11-2019, 11:20 AM
    Kayaker72 replied to a thread ISO Invariance in Open Talk
    First off, understanding all this does help. Right now, I think the astrophotographers have it figured out, likely because it helps that type of...
    32 replies | 1283 view(s)
  • Karsaa's Avatar
    04-11-2019, 10:23 AM
    Karsaa replied to a thread ISO Invariance in Open Talk
    I took 2 pictures last night one with 4s iso 6400 f/1.8 and other same but iso 800 will post later on so that i sync wb and tint for both images and...
    32 replies | 1283 view(s)
  • HDNitehawk's Avatar
    04-10-2019, 08:35 PM
    HDNitehawk replied to a thread ISO Invariance in Open Talk
    Maybe Sony is doing less control than Canon in body and that is why Sony is more "ISO Invariant". From the link in your last post: "How does...
    32 replies | 1283 view(s)
  • Kayaker72's Avatar
    04-10-2019, 06:20 PM
    Kayaker72 replied to a thread ISO Invariance in Open Talk
    Thanks for the article, that was a great level of detail at the pixel level. As for the Sony DR rehash...maybe. I never had an issue when...
    32 replies | 1283 view(s)
  • HDNitehawk's Avatar
    04-10-2019, 02:09 PM
    HDNitehawk replied to a thread ISO Invariance in Open Talk
    Start on page 17 http://www.robgalbraith.com/images/canon_full-frame_cmos_white_paper.pdf
    32 replies | 1283 view(s)
  • HDNitehawk's Avatar
    04-10-2019, 01:57 PM
    HDNitehawk replied to a thread ISO Invariance in Open Talk
    I came across a white paper from Canon that talked about the structure of the sensor. Every step in the process is designed with decreasing noise in...
    32 replies | 1283 view(s)
  • Kayaker72's Avatar
    04-10-2019, 12:02 PM
    Kayaker72 replied to a thread ISO Invariance in Open Talk
    A true electrical engineering line diagram would be another level, but if it helps, here are two cartoonish line diagrams I lifted from the net: ...
    32 replies | 1283 view(s)
  • Joel Eade's Avatar
    04-10-2019, 11:31 AM
    Thanks Mike! That place is worth a visit ... so many old vehicles with the amazing patina of being outdoors for decades and sitting in a pine...
    6 replies | 439 view(s)
  • NFLD Stephen's Avatar
    04-10-2019, 01:30 AM
    NFLD Stephen replied to a thread ISO Invariance in Open Talk
    Agree that a line diagram would be helpful, but I don't think there will be one forthcoming. Each camera could have a slightly different process and...
    32 replies | 1283 view(s)
  • HDNitehawk's Avatar
    04-10-2019, 12:25 AM
    HDNitehawk replied to a thread ISO Invariance in Open Talk
    I mentioned a line diagram would be useful. From what I have read it might not be an equal trade. Noise is removed at several points during the...
    32 replies | 1283 view(s)
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