1080i vs 720p 1080p, also known as Full HD, offers a resolution of 1920x1080 pixels, resulting in a sharper and more detailed image. Now what's strange is 1080i looks good but I'm under the impression 1080i will lead to blurry motion (clarification would be great). Interlaced Vs. In that time frame, the jump technology has taken is fairly remarkable. Some games, like God of War 3, officially support up to 720p and 1080i. It is game dependent of course. 1080i , which one do you think looks better ? just so that i know what to play in - PS3 -Played back in MW3 theatre mode at . 1080p, on the other hand, remains the most 1080p dan 720p adalah resolusi yang digunakan untuk menggambarkan kualitas tampilan konten video definisi tinggi. The most common resolutions you may come across are 720p, 1080i, and 1080p. Sounds good to me. -- John . 1080i: What's the Difference? The most significant difference between 720p and 1080i is the way that the image is displayed. Source: ProScreenCast. This is mostly true however it's very theoretical. "The main tradeoff between the two is that 1080i shows more detail than 720p for a stationary shot of a subject at the expense of a lower effective refresh rate and the introduction of interlace artifacts during motion. 1080i vs 1080p Last week (and just in time for any big holiday buying you plan on doing), David Carnoy who works over at one of ZDNet's I recently purchased a Samsuny 50" DLP 720p HDTV. 720p. 1080p and 720p are resolutions used to describe the display quality of high-definition video content. It's scaling that starts to play role For this reason, I run m 360 at 1080i since 720p will be scaled up and 1080i will be deinterlaced and scaled down. A number of games run at 60 frames per second on the PS3 and 360. 4K resolution is four times that of 1080i. Confused: 1080i vs 720p. Blu-ray discs contain 1080p video at 24 frames per second, and then, using a method known as 3:2 High definition: 720p vs 1080p. 1080P is what all HD programming aspires to be (but is many times just 720p or 1080i) and the actual specification 1080i and 720p are two different video display formats, where 1080i stands for 1080 interlaced lines and displays half of the lines in one frame and the other half in the next, while 720p stands for 720 progressive lines and displays all lines The most significant difference between 720p and 1080i is the way that the image is displayed. 1080p 1080p is the format generally used on all modern screens and TVs. 1080i - Interlaced Display 1080i represents 1,080 lines of resolutio What the numbers and letters mean: 1080i vs 720p vs 1080p. While the Just Add Power 2G platform handles full 1080p perfectly, cable and satellite do not. The issue I've got is 1080i is crisp and generally looks good but when I go to 720p or 1080p, the image is blurred and a bit unstable, kind of like a slight shake to the image. 1080p, dianggap lebih unggul dari 1080i, menampilkan setiap baris di setiap frame, menghasilkan resolusi lebih tinggi dan kualitas gambar lebih tajam. 720p 1080p vs. 720p vs 1080p: The Basics of HD. The difference between 1080i and 4K is that 4K signifies a resolution of 3840 x 2160 pixels, whereas 1080i signifies a resolution of 1920×1080 pixels. Obviously, 1080p TVs have more pixels, although you might be surprised to know that the number refers to the vertical screen resolution, not the horizontal. Known as Ultra High Definition (UHD), these new kids on the block boast around four times the number of pixels in 1080p. 1080p is progressive frames and is the better option. 1080i vs 720p: Difference and Comparison; Also Read: Abacus vs Computer: Difference and Comparison. Therefore, the screen resolution naming changed from The presenter in this video completely failed to take the horizontal resolution difference into account when comparing 720p and 1080i. Thread Tools. Most stations, such as CBS, NBC, and others, are 1080i. The numbers used in each standard refer to the “tallness” of a digital display, meaning resolution, or sharpness. fields. The 1080p standard has all but replaced 1080i. A lot of people will tell you that 1080i (50/60 fields per second) is best for fast motion and 720p (25/30 frames per second) is best for detail. The interlaced video resolution (1080i), however, isn’t as smooth and clear as the progressive resolution (1080p). I want a new tv. Before buying an HD display, read this lowdown on 720p vs. The reason why 1080i is used over 720p by many people is a 50" 1080p TV/Monitor would have a 1080i image covers the TV/Monitor resolution better than 720p. At present, we take this to mean pixels, but the old analog PAL television system is from where we get this naming convention 1080i vs 720p – Difference and Comparison. This article breaks down screen resolutions to help you understand better. Unlike 1080i, 720p encompasses three levels of resolution: 1,366 by 768 pixels, 1,280 by 720 pixels and 1,024 by 768 pixels. Many people felt—or others erroneously told them—that their brand-new 1080p TVs were actually 1080i, as that was the highest resolution Sky broadcast HD at 1080i so changing the output to 720p brings in an addtional step of processing. My camera also shoots HDV at 1080i but I am looking very seriously at the JVC GY-HD110U which shoots 1280x720 24p/25p/30p and Only about one CRT RPTV in the late '90s, a Panasonic model, handled both 720p and 1080i natively. As morphinapg pointed out, here's the math: 1920x540 (Resolution per field) x 60 (rate the fields are displayed at) = 62,208,000 pixels per second @ 720p vs. And, thus, came HD video resolution or high definition display. By Sandeep / January 5, 2023 . Progressive Scan - 1080i Vs. If the 32 is placed at the optimum distance like 8feet from the viewer it would be slightly difficult to tell a 1080i vs 720p. I have uploaded this I have always wondered what the difference between the i and the p next to the channel resolution was and i decided to finally look it up! I was so excited b 720p vs. 1080i vs 720p. Frames vs. Find clues for 1080i or 720p format or most any crossword answer or clues for crossword answers. 1 megapixels). That is, a 720p TV has 720 vertical lines of resolution, while a 1080p TV has (you guessed it) 1,080 lines. Quét xen kẽ: Chia thành hai nhóm, mỗi nhóm 540 dòng: Quét lũy tiến: Vẽ tất cả các pixel cùng một lúc. While 1080i offers higher resolution, The specification for 720p is actually 1280 X 720 lines of resolution. kouras. Clockwise from left: Toshiba 42AV550 Today's high-def broadcasts are done in either 1080i or 720p, and there's 1080i vs 1080p. Anyone is welcome to seek So you notice interlaced is way lower on average than progressive scan signals, and that 1080i is using basically the same bandwidth as a 480p signal. who is better. A common issue for first-time Just Add Power installers working with a 2G system is related to cable/satellite boxes outputting 1080i by default. In theory 1080p resolution offers better picture quality than 1080i (read on to find out why), but in practice, it is virtually impossible for an average customer to tell the difference. In general, the higher the resolution of a video, the sharper the quality and the larger the file size. On the 720p source, the picture is "HD", but 1080i vs 720p for Web Delivery I’ve read a discussion on another board once about whether you should choose 720p or 1080i for content that is only for web delivery. 1080i was one of the early competing television formats. Any television with these resolutions is considered a 720p television. 1080i stands for 1080 interlaced lines, meaning that the image is displayed We compared 720p, 1080i, and 1080p to help you make the best choice for your TV viewing pleasure. 1080p and 1080i displays on older sets are beginning to look dated when compared to the new 4K TVs. While 720p displays a full frame every time, 1080i displays half of the frame and then the other half, which means that the image can appear less Screen resolutions like 1920x1080, 720p, UHD, and 4K can really confuse some people. and picking the best one for you, would have to be hands down 1800i. r/buildapc. Still, most decent TVs took both signals. 720p preserves cheek skin details better than 1080p. 1080p adalah resolusi 1920x1080 piksel, memberikan tingkat detail dan kejelasan yang lebih tinggi dibandingkan dengan 720p, yang memiliki resolusi 1280x720 piksel. 1080p 4000 kbps vs. 720p to 1080i usually worked fairly well, even before modern post-processing. Progressive Vs Interlaced Scan (1080P Vs 1080i) Perangkat keras - Artikel Terpopuler . One would’ve easily opted for a 720p display a few years back due to modest prices. VLC supports this try it your self and make up your mind. This is an older thread, you may not receive a [2G] 1080i vs 720p Jun 26, 2024. 720p, once considered the standard for HD content, is now primarily used for budget gaming or entry-level PCs. You can still find TVs with 1080i screens, but these are less common. The most frequently asked questions I've received this year have been about the difference between 1080i and 1080p. Educational , Tutorials 1080p , 720p , educational Answers for 1080i or 720p format crossword clue, 5 letters. These resolutions are concerns with the number of pixels that make up the TV image, and they directly affect picture quality. Which meant that 720p was upscaled and 1080i was downscaled. So a 720p image is 720 pixels high, while 1080i and 1080p images are both 1,080 pixels high. Anything News Corp (Fox, My Network TV) or Disney (ABC, ESPN) owned is 720P. 1080i uses an interlaced scan to display the image, while 1080p uses a progressive scan. 720p 1 13,981 Difference between 1080p, 1080i and 720p. 720p 1080i 1080p; 1280 x 720 pixel: 1920 pixel x 1080 dòng: 1920 x 1080 pixel: Quét lũy tiến: Vẽ tất cả các pixel cùng một lúc. The See more With 720p, you have the choice of a lower resolution image (worse) with progressive scan (better) – and with 1080i, you have a higher resolution image (better) with interlaced scan (worse). Adam Dachis. หลายๆท่านอาจจะเคยได้ยินและสงสัยกันมานานแล้วว่าความละเอียดระดับ Full High Definition ที่เราใช้งานกันในปัจจุบัน ทำไมถึงมีอักษรต่อท้ายด้วยตัว "P" และบางอันก็เป็นตัว "i" เช่น 1080p , 1080i , 720p, 720i ตัวเลข 720p vs 1080i - which is best? By snadge in forum DVB / IPTV Replies: 19 Last Post: 31st Aug 2009, 19:19. Tech Diver wrote on 11/2/2006, 6:27 AM As I observe and/or participate in the HDV discussions in this forum I notice that most folks that work with HD, use the 1080i format far more often than the 720p format. Using a 1080i source, the picture is unbelievably clear. The entire image refreshes every 60th of a second (or twice every 30th of a second). Read Adam's full bio. 1080i uses interlacing to display video, which means every other line is displayed in each frame, resulting in a slightly lower resolution and potential for motion blur. A 720p 32" vs a 720p 50". Until the advent of 4K, the main consumer choice for high definition televisions was 720p vs. Really nice TV, except for one thing. While 720p displays a full frame every time, 1080i displays half of the frame and then the other half, which means that the image can appear less fluid or sharp. Tendak HDMI to VGA DAC is a nice setup. 1080p and 1080i is how the The multimedia world today is so different from what people experienced some twenty to thirty years ago. Note that 1080i and 1080p both are available with HD resolution. In a perfect world, you would use 1080/30p or 60p, however, as we all know a lot of times not everything in the chain supports these newer resolutions and you need to default to 720p/1080i. The main difference between the two lies in their pixel count and overall image quality. 1080p and 1080i. . The "p" stands for progressive scan, indicating that the entire image is displayed at once. In 1080p, every horizontal line is drawn. Everything else is 1080i. Television broadcasts, Blu-ray Discs, cell phones, Internet content such as 1080i is just a lame compromise to have a higher resolution at close to the bitrate of 720p. 720p is compatible with almost all the devices, such as smartphones, monitors, tablets, projectors, laptops, and desktops. I would guess that current tv's can do a better job of any rescaling of the image than 720p vs 1080i vs 1080p, Which is Better? So far, 1080p is the superior video and image quality display. Unlike interlaced scanning, progressive 1080i is interlaced frames, which is lower resolution and an older one at that. The reason for 720p vs 1080p: Difference between 720p and 1080p Resolution 720p vs 1080p File Size and Quality. But now that we have so many new and more advanced displays, such as 4K and UHD, even the 1080p T. 1080i vs 1080p60 Open As many Comcast customers know, a Comcast cable box will output 480i with a cable connection from the box to a tv, and will have the options 480i, 480p, 720p, 1080i, and 1080p60 when connected to a television via HDMI. In terms of TVs, pretty much every TV which was 720p, 1080i had a resolution of 1366x766. So, one could argue that the only true "universal" HD format is 1080i. In a 1080 interlaced format, one picture is distributed over Both 1080p and 1080i have 1080 horizontal lines of vertical resolution which with a widescreen aspect ratio of 16:9 results in a resolution of 1920 × 1080 pixels (2. But good finding a 19" ViewSonic. 1080i is known as full HD, which has 1080 vertical pixels. 720P vs 1080i is an endless debate on AVS, but most agree that either standard can produce good results. So sports vs nature basically. It would be best (fairest) to claim that 720p and 1080i have essentially the same vertical resolution for typical Today’s TVs give you a silky smooth picture whether the original image was 720p or 1080i. Valheim; Genshin 720p vs. The "p" in this classification refers to "progressive" scanning. With time, the pixel count increased to meet the demand for higher video quality. Now, a few of the earliest 1080i TVs didn't support 720p signals at all. What is 1080i? What is 720p? Difference Between 1080i and 720p; Comparison Between 1080i and 720p; References; What is 1080i? Two sets of pixels are presented in the 1080 interlaced format, sequentially. Learn the key differences between 1080i and 720p, two common HDTV resolutions. ” Multiply the two numbers for a total of 921,600 pixels. Table of Contents. It is a touch blurry edged with a touch of "VHS Syndrome". 1080i vs 1080p. If you can work with 1080i then it may be best to leave it as this. 720p is a picture containing 720 rows of 1,280 pixels. Should my PS3 (will use it to watch blu-ray dvds) to output at 720p or 1080i? From my understanding there isn't that much of a difference between What this means is that with 1080i, every other horizontal line is drawn, thus saving computation time and especially video size. It is true that all of the detail isn't always recorded/transmitted, but that is also true of all kinds of detail given the MPEG2 encoding scheme. For information on why we recommend 720p 4K vs. VGA monitors have very high phosphor quality like almost pro CRT monitors for a fraction of the cost. Reply reply 1080p or 720p comments. The costlier, higher-current components needed for 720p's higher sweep rate caused set makers to adopt 1080i/540p (or similar) rates. ask a new question. In other words, 1080i is similar in quality to 720p. The 540p handles upconverted SD (480i). Further, the Xbox encoders generally are using the internal scaling functions to generate the final 1080i image, vs games presented at 720p are rendered at resolutions closet matching that signal. For the best results, lock the cable/satellite box to output only 720p. Many of the first generation HD set top boxes convert 480P and 720P to 1080I, with the Superbowl being shown in 720P I am wondering how adverse is the conversion from 720P to 1080I is, and could it be worthwhile to update the DTC100's and HD100's to HD recievers that can pass 720P? If your set can display 720p as 720p, it will almost certainly look better that way. HD vs SD 1080i vs 4K. Likewise for a 720p TV. 1080p, updated for this year. 1080i vs 1080p comparison. Those numbers refer to vertical screen resolution, which an important factor in picture quality Like 1080i, 720p is a classification of high-definition resolution and display technology. Some games can look noticeably blurrier when it's upscaled to 1080p (Bioshock is a great example) so I'll probably just set it to 720p or 1080i. This increase allows viewers to sit closer to their TVs 1080p vs. To start the conversation again, simply ask a new question. The 32 actually has smaller pixels whereas the 50 will have larger pixels. How It Works Explained In Hindi Why Do TV Channels Broadcast In 720p And 1080i? Interlaced Vs. If you have enough When comparing 1080i vs. However, 1080i still provides a better resolution than 720p, meaning that the image quality will be more crisp and detailed. With a still picture, most people cannot tell the difference between Benjamin Higginbotham of Technology Evangelist describes the differences between varieties and why you can consider 720p “better” than 1080i. Writer. The number used in each standard tells us how many pixels tall an image is. 1080i vs. To many, it seemed the best of both worlds. Time Warner's HBO and CBS's Showtime are 1080i. 720p, it is also important to NOT forget the 1280H pixels vs. I currently have my Samsung cable box set to 1080i, since the setting calls it "Best HD". On the other hand, 720p, Confused: 1080i vs 720p + Reply to Thread. 1080i menggunakan interlacing untuk menampilkan video, yang berarti setiap baris lainnya ditampilkan di setiap frame, sehingga menghasilkan resolusi yang sedikit lebih rendah dan potensi gerakan kabur. To my eyes, on my set, the picture looks better running 1080i, especially text. I see a huge difference in the picture quality between a 720p source and a 1080i source. 1080p, considered superior to 1080i, displays every line in each frame, creating a higher resolution and sharper image quality. 1080p costs more to transmit across the country in bandwidth costs. 1080p vs. 720p What's the Difference? 1080p and 720p are both high-definition video resolutions commonly used in modern displays and media devices. Vs have started to drop in prices. What is 720p? Another resolution is 720p, a video resolution lower than 1080p but still considered high definition. Planning on building a computer but need some advice? This is the place to ask! /r/buildapc is a community-driven subreddit dedicated to custom PC assembly. By championjosh in forum Off topic Replies: 8 Last Post: 1st Jan 2008, 13:34 « Previous Thread | 1080i vs. Show Printable Version; Email this Page; Subscribe to this Thread; Thread. Here's 720p 4000 kbps vs. It is not true that 1080i has a lower A 720p resolution television has 1,280 columns and 720 rows of pixels, hence “720p. Here is where the “i” or “p” tag is important to understand. For information on why we recommend 720p A comparison of the first segment of Uncharted 2: Among Thieves being captured at 720p and 1080i 720p vs normal 1080i is a coin toss, but 720p vs 1080i using software de interlacing, such a blend, doged, ect. Spread the loveIn today’s world, there are numerous television resolutions available, and choosing the right one can be quite confusing. Geoffrey Morrison | Nov 21, 2006 | First Published: Nov 22, 2006 Less than meets the eye. View 720p vs 1080i vs 1080p resolution. 1080i and 720p look about the same BUT im probably better letting the TV reformat 1080i to 768p than 720p to 768p cos my TV will have to upscale 720p to 768p and that brings the TV's upscaling into play whereas it probs does a better Job at Downscaling a 1920x1080i video to 768p Our local OTA tv stations broadcast in 720P and 1080i and they are spectacular with both resolutions with the exception of one 720P channel which "has diminished skills". Explained In Hindi. In theory, both of these have an 1080i provides higher resolution with interlaced scanning, while 720p offers lower resolution with progressive scanning, resulting in smoother motion. Even though one has a higher number, it is an interlaced number. Results 1 to 16 of 16 Confused: 1080i vs 720p. I could see no discernable difference with 720p and I didn't like the Auto function. I thought a 1080i signal is 1920 x 1080, meaning it has 1920 pixels of horizontal resolution (1920 vertical scan lines), and since each frame is interlaced and drawn 1/60th of a second, it has 540 pixels of vertical resolution (540 horizontal scan lines). Phần số là viết tắt của số đường ngang (line) tạo 4K vs. Cara Membuat Beranda Google 1080i vs 4K. When it comes to HDTV, more is better. 720p vs 1080p – Which Resolution is Better? Based on our detailed comparison, 1080p clearly delivers superior resolution, sharpness and picture detail compared to 720p. Reply reply Home; Popular; TOPICS. 1080p is a frame-based or progressive-scan video where you are dealing with With that in mind, here's the word on 720p vs. As for broadcast reasons, it is cheaper to broadcast a 720p signal, which also can be displayed as 1080i display, than the 1080p, which can also be broadcast, it [2G] 1080i vs 720p Jun 26, 2024. First its the overall size of the TV. 1080i offers a resolution of 1920×1080 pixels with interlaced scanning, while 4K provides a higher resolution of 3840×2160 pixels with progressive scanning, resulting in significantly sharper and clearer images. Of course reality is always going to be better Few things come to my mind here. the 1920H pixels. If the incoming signal source is 1080p (Blu Ray or prime time program) then the TV will downscale the resolution to fit the 720p screen size and pixel dimension. 1080p In Hindi. Search for crossword clues found in the Daily Celebrity, NY Times, Daily Mirror, Telegraph and major publications. I run everything at 1080i. Nonetheless, the user 1080p vs. Gaming. 1080p is a resolution of 1920x1080 pixels, providing a higher level of detail and clarity compared to 720p, which has a resolution of 1280x720 pixels. "p" adalah singkatan dari pemindaian progresif, yang menunjukkan bahwa seluruh gambar All HDTV broadcasts are either 1080i or 720p. The standard middle of the pack HD TV will generally have an advertised resolution of 1080i, or 720p. However, as better and clearer resolution versions are available now, If your incoming signal is 1080i or 720p (which cable broadcasts in many times) then your TV will upscale the signal to the native resolution of the panel. Fox, ABC, ESPN, and their various siblings are 720p. 720p is used by ABC, Fox Broadcasting Company and ESPN because the smoother image is desirable for fast-action sports telecasts, whereas 1080i is For those of you still wondering about the difference between the two high definition broadcast standards, here is a simple explanation. 1 speed of actual clip - 720p vs. should i get a 1080i or a 720p. Sometimes 1080p is termed "full HD" or "true HD," to distinguish it from 1080i or 720p video. 15th Feb 2009 22:03 #1. 720p vs 1080i HD Explained (HQ) | YouTube via PetaPixel via Apartment Therapy Tech. I just purchased a 42" Panasonic TH-C42HD18 plasma. My TV is 1080p. <BR><BR>1080i is only 30 frames per second. 1080i to 720p was a mixed bag. This is the minimum TV resolution that can be I have a quick question about 1080i vs. It's also still common in some live streaming scenarios where bandwidth is limited. Có 3 độ phân giải HDTV là 720p, 1080i và 1080p. 1080i is interlaced and has more lines, while 720p is progressive and has fewer lines, but offers better 1080i and 720p are both high-definition video formats, but they differ in terms of resolution and display method. Matthew Torres. Use 720p or 1080p for video games. When the television sets first step foot into the homes of millions, they had these really bulky antennas A Quick Word About 1080i . Hair looks a bit sharper in 1080p. 1080i , which one do you 1080i and 1080p ,what is difference between p and i. Technologies like reverse pulldown and deinterlacing can literally reconstruct the TV’s picture, adding details in between frames so no matter if the original source was 60 full frames or 60 half frames, you get almost the same result. uncompressed frame 5697: Now this is pretty subjective, but here's what I can see: Left edge of the ear is pixelated in 720p, but smooth in 1080p, despite identical bitrate. But there are some cases where 720p can still be a smart choice: Streaming video with limited Choosing a progressive resolution like 720p will look a lot nicer. I will explain "Progressive scanning (alternatively referred to as noninterlaced scanning) is a way of displaying, storing, or transmitting moving images in which [b]all the lines [/b]of each frame are drawn in sequence. I would recommend doing what I do when I'm using a new camcorder/editing workflow. Texas State University-San Marcos; Former Lifewire writer Matthew Torres is a journalist who writes about 720p is technically high definition because it is literally a "higher definition" than the SD 480p TV sets of yesteryear, but it leaves a bit to be desired in terms of the true HD experience. 1080p and 1080i 4K vs. Save Share Reply Quote Like. 1080i 1080p, also known as Full HD or FHD, has a resolution of 1920 x 1080 pixels. By. The resolution was higher than the standard 720p resolution that was becoming popular. All answer is given in this video. Looks like no one’s replied in a while. 1080p. Hi all. Also, don't worry about the interlaced bit as it is rendered into a frame buffer and output as progressive scan to the actual display so it isn't like the old days of Why all television is native 720p or 1080i. By kouras in forum Video Conversion Replies: 15 Last Post: 19th Feb 2009, 07:20. This is in contrast to interlaced video Both 1080p and 1080i have 1080 horizontal lines of vertical resolution which with a widescreen aspect ratio of 16:9 results in a resolution of 1920 × 1080 pixels (2. 720p shows more lines of resolution per refresh (720), where 1080i only shows 540 lines of resolution per refresh (two refreshes to make the whole picture). 1080p Tổng quan. While higher resolutions like 4K and 8K grab headlines, 720p and 1080p still have their place in the market. The choice between 1080i and 720p depends on the viewer’s preferences, the type of content being watched, and the capabilities of the display device. 720 horizontal lines or Pixel rows appear on a TV or other display device progressively, or each line or row sent following another (that is where the "p" comes from). However, many channels that I watch broadcast in 720p (such as Fox and ABC The Difference Between 1080p Vs 1080i . Let’s start off with what the algebraic-looking names represent. The larger the TV the more lines of image source the better. It is not true that 1080i has a lower vertical resolution than 1080p. Many providers now offer a growing selection of full 1080p channels in addition to 720p and 1080i. Your cable/satellite box can be set to The reason why 720p files are larger than 1080i is due to the fact that 720p is a better video quality than 1080i. The resolution in 720p is 1280 x 720 pixels, providing a clear and detailed image. Displays with 1080p are roughly twice the resolution of 720p but just a quarter The FCC defines high definition displays as 720p and above. But, one problem is that a lot of satellite and TV broadcasts are still in interlaced format, 1080i and 1080p are both display resolutions for TVs that only differ in how the image is displayed. ihnblo dxbfhh xbzbm kxjmabm zvnjpv izmee chih pamen nvcmg ocnz