Sweet Spot Timings | Pixel Magic Systems VPS3800 specs

refresh rate. For example, let’s take a 1280 x 720 @ 60Hz timing which has 720 active lines, a vertical front porch of 3, a vertical sync width of 7 and a vertical back porch of 23. Total vertical figure becomes 753; multiply this by the vertical refresh rate of 60 and the answer is 45180. Divide by 1000 for a horizontal scan rate of 45.180 KHz

•Horizontal timing specifications do not affect the horizontal scan rate. They do affect the pixel clock but this is unlikely to completely prevent a CRT projector from displaying the resolution. However, models with a low RGB bandwidth may not fully resolve resolutions that result in a high pixel clock

4.7.1SWEET SPOT TIMINGS

For CRT projectors people tend to talk about the Sweet Spot for a particular projector. This will vary considerably between models and it will also be affected by projector condition and setup. Here are some general guidelines; they will not suit every viewer’s taste and they will not suit every model of projector but they offer a range to consider:

•7” tube Electrostatic focus: 480p to 720p

•8” tube Electrostatic focus: 480p to 720p

•8” tube Electromagnetic focus: 600p to 960p (1080p some models)

•9” tube Electromagnetic focus: 800p to 1200p

•The Sweet Spot of any CRT projector is just before the point where individual scan lines start to overlap. Exceeding this point will produce a soft image which lacks detail

•Electromagnetic focus projectors are capable of higher resolutions before scan line overlap due to their ability to tightly focus the electron beam, which produces finer, more defined scan lines

•Spend time trying a few different resolutions; you should find some that suit both you and your projector

•We all look for different things in our picture; if sharpness is your goal, lower resolutions may be more suitable. If a smoother more filmic appearance is required, higher resolutions should be appropriate

4.7.248HZ/72HZ CADENCE LOCK

Film is generally shot at 24 frames per second. Since NTSC video is nominally 60Hz vertical refresh rate and PAL is 50Hz vertical refresh rate, the requirement for 3:2 pulldown (NTSC) and 2:2 pulldown (PAL) is created (you can research this in more detail on the internet). Crystalio II has the ability to offer 48Hz (24 film frames times two) and 72Hz (24 film frames times three). Both vertical refresh rates can produce smoother camera pans.

•48Hz will produce significant image flicker. Flicker tolerance will vary considerably between individuals; what is quite acceptable for one viewer may be unacceptable for another

•48Hz flicker will vary between projector models partly due to different phosphor decay rates of the tubes

•72Hz will be free of image flicker. 60Hz and above is generally free of flicker for most viewers.

•While you may see flicker at 60Hz on a CRT computer monitor, CRT projectors have slower phosphor decay rates; this masks image flicker

•Remembering the horizontal scan rate is calculated by vertical lines multiplied by vertical refresh rate, 72Hz resolution timings can produce unexpectedly high horizontal scan rates

•If you want to define a customized output resolution with 48Hz (or 72Hz) refresh rate, enter 47.95 (or 71.93), instead of 48.00 (or 72.00), in the Refresh Rate numeric box. 48Hz (or 72Hz) is used in the industry as shorthand for the actual 48Hz ÷ 1.001 (or 72Hz ÷ 1.001) industrial standard refresh rate. For the same reason, while NTSC video is called 60Hz, the actual refresh rate is 59.94Hz

VPS3800 specifications

The Pixel Magic Systems VPS3800 is an advanced video processing system designed to cater to a wide range of professional applications in the broadcasting and live event sectors. This device is renowned for its versatility, reliability, and superior performance, making it an ideal choice for event producers, broadcasters, and AV professionals who demand the highest standards in video processing.

One of the standout features of the VPS3800 is its ability to handle multiple signal formats. It supports a broad array of input and output formats, including SDI, HDMI, and various IP streams, enabling seamless integration into existing workflows. This flexibility ensures that users can easily adapt to evolving technical requirements without needing significant hardware updates.

The VPS3800 is equipped with sophisticated upscaling and downscaling technology, allowing it to deliver high-quality visuals regardless of the original source resolution. This feature is especially crucial in live events, during which maintaining visual integrity across various displays is paramount. The system utilizes advanced algorithms to enhance picture quality, ensuring that footage looks sharp and vibrant.

Another key characteristic of the VPS3800 is its powerful real-time processing capabilities. With low latency and high throughput, the system enables operators to manipulate video feeds instantly, which is vital for live productions where timing is everything. This feature is complemented by an intuitive user interface that streamlines the decision-making process for operators, allowing them to focus on creative control.

The VPS3800 integrates cutting-edge technologies such as HDR (High Dynamic Range) support, which significantly enhances the visual experience by providing greater contrast and color accuracy. Additionally, it features advanced color grading tools that allow for precise adjustments, ensuring that content meets the highest cinematic standards.

Moreover, the VPS3800 is designed with robust networking capabilities, including support for NDI (Network Device Interface), enabling flexible configurations and remote production setups. This makes it easier for teams to collaborate across locations while maintaining high-quality video feeds.

Overall, the Pixel Magic Systems VPS3800 is a powerful and versatile video processing solution that sets a new standard in the industry. With its advanced features, support for multiple formats, and real-time processing capabilities, it is a top choice for professionals looking to elevate their broadcast and live event productions.