>We have been discussing this very thing for over a month. >I'm surprised you didn't see the conversations.
I keep pretty busy shooting for a living, so I must have missed the threads that directly compared the D3 to the D800.
Have you seen any other images posted on Nikonians or elsewhere that directly compare the D3 and the D800 at high ISO, taken with the same lens, capturing the same image, shot in raw, like I posted? I don't think I have seen any.
I've seen lots of images that showcase the D800, but none that compare the D800 directly with the D3.
>Russ, > >Too bad you didn't use the exposure slider to match the image >exposures. >The D4 images are brighter than the D3 and that throws off >comparisons. > >Regards, >Bill
Yes, I saw that. The varying brightness was caused by a cloudy day, and while I was shooting the ambient was changing. I could adjust the images, but my goal was to leave them exactly the way they came from the cameras. I didn't want to manipulate the images in any way.
Note: I compared the D800 to a D3 not a D4.
This was not intended to be a controlled scientific experiment. It was more of a practical quick check under real-world conditions just to get an overall comparison between the noise level on the D3 compared to the D800.
Even without rigorous control, you can see that the noise is a pretty close match between the D3 and the D800.
Wed 28-Mar-12 12:04 AM | edited Wed 28-Mar-12 12:06 AM by Arkayem
>Russ, > >This was not intended to be a controlled >scientific experiment. ... just to get an overall comparison >between the noise level on the D3 compared to the D800. > >Even without rigorous control, you can see that the noise is a >pretty close match between the D3 and the D800. > >A controlled test would show about 2/3 stop advantage to the >D800
Yes, I had already seen your data from your post in March in the D700 vs. D800 thread. So, I knew that the D800 should be better than the D3, but I wanted to compare my own actual photos to show that.
Also, the comparison photos in that March thread were all normalized. I wanted to leave the size difference at 100% intact, so you could see the magnification you get at 100% with more pixels.
The thing that surprised me was that even without normalizing the images the D800 noise seemed similar to the D3.
So, if you shrink the D800 image to normalize it with the D3, the D800 would then appear to have less noise.
I still have a hard time believing that a high pixel density sensor like the one in the D800 could actually have less noise than the D3, but now I see from my own photos that it's obviously true. Amazing!
Using your adjusted JPGs I verified, to my satisfaction, that the ISO 3200 D3 is equivalent in noise to the ISO 6400 D800. (By scaling to the same size and looking at the signal to noise ratio of a dark patch on the speaker.)
>Thanks for the comparison Russ, I'm always happy to see >personal, real world tests. > >What I would also really like to see, is a real world test of >very low light iso response. AKA, events or weddings in a >dimly lit room.
I'll see what I can do. I have another big event in two weeks. I like to fully learn a camera before I use it for critical work.