尼康好兄弟 尼康z8的iso32到底有多好用

Hi, and welcome to another edition of Jules Vodo's Photo Focus. In this video, I want to explain my experience using the Nikon Z8 at the extended ISO of 32. Now, the native ISO of the Z8 is from 64 to 25600. And you have the ability to set extended ISOs at the low end and at the high end. At the low end, you could go to 0.3, 0.7, or 0.1. 0.1 being an ISO of 32. And at the high end, you could go up to ISOs of over 100,000. Now, those high ISOs, those high extended ISOs, in my opinion, are virtually useless. Even at 25600, there's just too much noise. Although the lower ones, lower ISOs up to around 12,000 seem to work fairly well with some noise reduction. But this video is going to concern itself with using ISO 32. Now, my Nikon D810, my Z7 also had that ability. Both had a low native ISO of 64 with the ability to extend down to minus 1 or the equivalent of 32. I've never tried it on the D810, and I never tried it on the Z7. But I figured since I'm going through this Z8, I'm still learning the Z8. I'm trying everything. I would see just how well it worked. Now, Nikon recommends that you stay within the native range, starting at 64. And 64 yields excellent quality. Virtually no noise, very high dynamic range. And the images at that ISO are simply beautiful. And that's what I use quite a bit when I can. Whenever I can, I use the lowest ISO. And I recommend you do that too. You're going to get the highest quality, best dynamic range, lowest noise, the lower ISO you go. And I had always understood that going to that 32 on the D810 and the Z7 would not yield the best quality. That highlights, primarily highlights would be blown out. But as I said, I never gave it a shot. So I decided to do that now. Now, why would you want a lower ISO? If you're shooting in studio lighting, you want to use wide aperture to throw the background out of focus. It could come in handy with bright studio lights. You may want to use it outdoors if you're a landscape photographer, possibly. If you wanted to get running water, a brook or a waterfall. And you wanted to use a slow shutter speed. But you didn't want to stop the lens down too much. It could come in handy there. So if you're using fill flash outdoors with the Z8 and other Nikon cameras, many other Nikon cameras. Your highest sync speed for electronic flash is one two hundredth of a second. So if you want to use fill flash and you also want to shoot wide open, it could come in handy. But how much of a loss of quality is there or is there a loss of quality? So we're going to look at some pictures and see what the results are. I just shot some standard test images, both outdoors and indoors, just to see what would happen. So why don't we go over and take a look at those images now? OK, this was done in my dining room with the Z8 at ISO 64 on the left and 32 on the right. Camera's on a tripod. And you will notice in the upper left, that window. It's a little bit more blown out than the ISO 64 image. Not a huge difference, but there definitely is a difference. Otherwise, I think the images look identical. And here's just a tighter crop of that. So this is the ISO 64. You know, good dynamic range. There was sunlight coming through that window on the upper left there, and it's blown out at 64. At 32, now I think you could really see this. It's blown out even more. There's no detail in that at all. But otherwise, you know, I think the image looks pretty good. So definitely you do lose highlight. OK, this image was shot in my family room. There are four large windows opposite that loveseat you see on the left. And there was no direct sun coming through. It was nice soft light. And I see very little difference in these images. Even if you can notice those squares on the color checker. The left is pure white and the next is a little darker. They look the same. Detail is the same. And here's a tighter shot at 64. And you look at the trim on the staircase. And then we look at it at ISO of 32. And I think it looks the same. I don't see a difference here. So in more contrasting lighting, you're going to really blow out those highlights. But in flatter lighting, to me, it looks the same as 32. Now we go outside and the sun was behind a cloud. Again, the left image is 64. The right image is 32. And again, I don't see much, if any, difference. There may be a little bit more detail in that second light-colored square at the bottom of the color checker and the ISO 64 image. But if there is a difference, it's very slight. So just let's look at it a little closer here. It may be easier to see. So here we have the ISO 64 image. And the camera was on a tripod. It wasn't moved. These pictures were taken within seconds of one another. Now we look at this one. And again, I think that second square on the bottom left may be slightly lighter, but it's not a big difference. So I think for low-contrast lighting, I don't see a problem using ISO 32. I see no problem in many cases, unless there are really bright highlights where you need detail. For example, let's say a bride, a wedding dress. You probably wouldn't want to use ISO 32. Here's another image taken from my back door, looking out onto the deck. I see very little, if any, difference. So my conclusion is, if it's flat lighting, if it's a dreary kind of day, without a lot of bright highlights, give ISO 32 a shot. Okay, so I hope you enjoyed this video. If you did, please give it a thumbs up and subscribe to my channel. And if you have any questions about my testing methods or anything photography related, please leave your question in the comments below or email me. So thanks for watching, and I will talk to you soon.