ViewSonic PX748-4K UHD HDR Projector – A Versatile And Vibrant Projector For Huge Display screen Enjoyable

ViewSonic PX748-4K is a competitively priced short-throw 4K projector that’s out there in India for ₹1,69,000. It is a slightly transportable digital lamp projector that guarantees to be fairly versatile. It claims 4000 lumens of most brightness and looks like a terrific possibility for boardroom displays, gaming, and even watching 4K UHD HDR content material. Does the expertise match the specs on paper? We now have been testing the ViewSonic PX748-4K UHD HDR projector for the final 10 days and can share our expertise right here. This could hopefully provide help to resolve if that is the fitting possibility in your particular wants. Let’s get began.   

ViewSonic PX748-4K UHD Projector Specs 

• Decision – 3840 x 2160
• Lens – F=1.94-2.12, f=12-15.6mm, 120%+/-6% projection offset
• DMD Chip – DC3
• Brightness – 4000 (ANSI Lumens)
• Distinction Ratio – 12000:1 (SuperEco+ Mode)
• Lamp Life – 4000 Hrs in Regular Mode, 20000 Hrs in SuperEco+ Mode
• Zoom – 1.3x Optical Zoom, 0.8x-2.0x Digital Zoom
• Enter Lag – 4.2ms and 240Hz excessive refresh charge (firm claims)
• Connectivity Choices –  2x HDMI (HDMI 2.0b, HDCP 1.4/2.2), USB Kind C, Audio-out (3.5mm), USB Kind A (Energy), 12V Set off, RS232, RJ45
• Dimensions and weight – 312 x 222 x 108 mm; 2.8 kg

ViewSonic PX748-4K projector: design and connectivity 

ViewSonic PX748-4K is a slightly compact and light-weight 4K UHD projector. On the entrance, you’ve gotten the ViewSonic brand, the lens with an connected protecting cowl and an IR sensor. On the prime, you can find the facility button, different OSD menu buttons and LED indicators. Additionally, you will discover zoom and focus rings for handbook lens changes.

There is only one adjustable foot on the backside that can be utilized to extend the peak of the projection whenever you mount the projector on a entrance desk. All connectivity choices are on the rear; these embody 2x HDMI 2.0b ports (each can settle for 4K enter), a USB Kind-C port, an everyday USB Kind-A port, an RS-232 connector, and an audio jack. The projector additionally has a 12V set off for motorized screens and an RJ45 LAN Jack for it to play effectively with dwelling automation.  

The plastic casing in all fairness sturdy. There are vents on both aspect for the followers and for the 10W speaker. The projector distant is backlit, which is de facto handy for altering image modes and different settings as you’d be typically utilizing it in a darkish atmosphere. 

ViewSonic PX748-4K Projector: setup and ease of use

The +/-40 diploma vertical and horizontal keystone correction and nook correction for squaring off the projection provides you some flexibility to place the projector across the room. There’s warping help to allow you to mission on a curved wall or display. We’d advocate you are taking your time for bodily changes since utilizing digital changes can negatively influence picture high quality and latency. However, these choices are very a lot welcome and might come actually useful for minor changes at instances. 

Since this isn’t a laser projector, you’ll be able to comfortably place it at an appropriate distance from the display. The 1.3x optical zoom is available in actually useful when establishing the projector in a medium-sized room. We may get a projection of 100-inch simply by positioning the projector round 2.5m away.  

The USB Kind-C port makes the projector remarkably handy to pair with laptops and cellphones. ViewSonic software program is fairly easy and it was straightforward to search out no matter we regarded for. 

ViewSonic PX748-4K projector: efficiency and color accuracy

This isn’t a local 4K projector however makes use of pixel-shifting expertise to attain 4K UHD decision or 8.3 million pixels. However, it’s 4K licensed and might settle for 4K UHD enter from a supply by way of its HDMI port. 

ViewSonic does not verify the color wheel on PX748-4K, however some research on the boards signifies that the projector is utilizing a six-segment RGBRGB color wheel and but manages 4,000 ANSI Lumens of brightness. This is among the brightest 4K projectors in its class, and the sharpness can also be fairly spectacular for viewing multimedia content material. 

Due to the excessive brightness, you’ll be able to very effectively use the PX748-4K in an everyday lounge with some lights turned on (not directed on the display) and don’t essentially want a pitch-dark room for informal viewing. The excessive brightness and 4K sharpness make it notably helpful for workplace or instructional displays or maybe even as an exterior monitor. A 65-inch 4K display with UI scaled to 200% labored very well for us.  

HDR Playback 

To check the HDR efficiency of the projector we used a FireTV Stick 4K. The USB-A port with 5V/1.5A can be utilized to energy the dongle however guarantee that ‘USB A Energy’ is turned on within the menu (it tends to get disabled whenever you toggle completely different setting choices). 

It’s arduous for DLP projectors to do HDR, so don’t anticipate a lot right here. For finest outcomes, you will have to make use of it in a darkish room. The excessive brightness helps enhance specular highlights, however we seen a variety of posterization artefacts and banding in each further vibrant and darkish scenes. It’s because it is not doable to implement true 10-bit broad color gamut help as is required for the very best HDR expertise. 

The projector may definitely do with somewhat extra distinction and deeper blacks, however that’s once more to be anticipated of digital lamp projectors. Upscaling shouldn’t be the robust swimsuit of PX748-4K both. If you’re planning to make use of this projector in your dwelling theatre, you certainly don’t plan on sourcing low-resolution content material. Nevertheless, in case you are streaming any basic outdated film or present this could possibly be a difficulty. 

The image high quality is considerably higher with SDR content material, particularly in vibrant scenes. Right here too noise and artefacts have been noticeable in difficult darkish sequences. 

For informal viewers, the sharp and vibrant scenes projected by the PX748-4K on a big 100-inch display ought to certainly offset the negatives. Certainly, watching 4k content material on a 100+ inch display may be exhilarating in itself even when it comes on the expense of some high quality.

For some measurement perspective, that patch on the underside left is the balcony door

To determine this, I screened 100+ inch 4K HDR content material for household and associates outside on my balcony and no person complained about high quality even on the patchy and flaky aspect wall. However sure, in case you are fastidious about correct colors and HDR, you will have to steadiness your expectations. 

There are 5 preset color modes on the projector – Brightest, Sports activities, Gaming, Film, Motion pictures – and the choice so as to add 2 consumer profiles as effectively. None of those felt color correct, however Commonplace and Film (Rec 709) modes are what we most popular for watching multimedia content material. 

You possibly can modify parameters like brightness, distinction, color temperature and extra from the settings menu or utilizing ViewSonic’s VColorTuner, which is a really fascinating software program instrument. 

How does VColorTuner work?

You possibly can obtain the vColorTuner software program for PX748-4K here. The software program is simple to arrange however you will have a USB Kind-A to USB Kind-A cable for vColorTuner to work. Different cables like Kind-C to Kind-C or USB Kind-A to Kind-C received’t work.  

The software program helps you to change color temperature, brightness and distinction. It additionally helps you to fiddle with the Hue, Saturation, and Luminance of major and secondary colors. In case you dig deep, you can find these choices within the OSD menu, however it’s less complicated to make changes utilizing vColorTuner

In fact, to profit from the software program you will have a colourimeter, however should you really feel the color temperature, gamma or a selected color is a tad off, you’ll be able to attempt fixes utilizing vColorTuner. 

Furthermore, you can too straight obtain profiles uploaded by different customers and a few these have been useful in boosting HDR. All of those changes may be made whereas your content material is taking part in on the display and thus make it very easy to interpret adjustments.  

Additionally Learn: Sony X75K 55 inch 4K LCD Smart TV review – a pricey affair

ViewSonic PX748-4K projector: gaming 

ViewSonic PX748-4K helps 240Hz enter in Gaming Mode with 1080p decision. We tried gaming on the projector and enter lag was bearable. We seen the rainbow impact on PX748-4K a few instances whereas gaming, however it was by no means bothersome. 

There is no such thing as a HDMI 2.1 port on the projector so 4K 120Hz gaming isn’t supported for consoles. As soon as once more, the expertise might be finest with the lights turned off. 

ViewSonic PX748-4K projector: audio, noise and lamp Life 

The 10W fundamental speaker must be helpful if no different audio possibility is out there, say for a brief video included in your workplace presentation. The noise from the fan by no means actually bothered me, particularly since we reviewed the projector in sizzling Indian summers punctuated by the hum of the air conditioner and ceiling fan within the background. ViewSonic additionally provides a silent mode, and that makes a little bit of a distinction. 

The lamp of PX748-4K  is rated to final for 4000 hours within the regular mode and 20,000 hours within the SuperEco+ mode. In case you watch a variety of HDR content material you’ll simply burn it quicker. With round 78 hours of testing the projector, largely for multimedia content material and largely in Regular mode, now we have exhausted 374 equal mild supply hours. 

ViewSonic PX748-4K projector: verdict

ViewSonic PX-748 is a stable entry-grade 4K projector which is an efficient worth possibility for each properties and workplaces. It’s fairly transportable and is effectively suited to informal dwelling theatres and gaming. The upside is the massive, vibrant and sharp 4K display that you simply get on the expense of some distinction and high quality. It is a projector you’ll be able to carry to your buddy’s dwelling to observe sports activities or to play a film on a makeshift display outside whereas chilling round a bonfire or for comparable big-screen enjoyable. It’s not meant for important dwelling cinema viewing.