What is the Panasonic DX750?
Aside from the new stand the flat screen DX750B also incorporates plenty of cutting-edge technology such as Ultra HD 4K and High Dynamic Range (HDR). It utilises Studio Master HCX (Hollywood Cinema Experience) processing and Cinema Display technology, designed to deliver more accurate colours, increased brightness, better blacks and subtler gradations. The DX750 also includes edge LED backlighting, local dimming and even 3D support which is something of a rarity these days. There's also the Firefox smart TV platform which includes Freeview Play, along with support for all the main streaming and catch-up services.
The TX-50DX750B is the 50-inch model and retails for around £1,299, as at the time of writing (April 2016), which is a great price when you consider all the included features. So is the 50DX750 the bargain it appears or is there a catch? Let's find out.
Connections & Control
Of course if you'd rather control your new TV in a slightly more modern manner, you also have the choice of Panasonic's excellent remote app (Panasonic TV Remote 2), which is freely available for both iOS and Android. The app allows you to use your smartphone or tablet as a controller and it is well laid out and easy to operate, with some handy features and all the controls found on the provided remote.
Features & Specs
Panasonic TX-50DX750B Recommended Picture Settings
Picture Settings - Out-of-the-Box
So you should have at least one setting that accurately reproduces these standards, although depending on your viewing environment, you could have two - one for daytime viewing and one for night time viewing. The daytime setting would obviously be brighter to offset any ambient light but don't set your TV too bright in the evening or it can be fatiguing and even uncomfortable to watch. This is especially true now that modern TVs are capable of delivering greater inherent brightness because brighter doesn't necessarily mean better. You can find our recommended settings for Day, Night and HDR in the video above.
Picture Settings - Calibrated
Picture Settings - High Dynamic Range
Black Levels and Contrast Ratios
First things first, the DX750's VA panel delivered a great black level measurement of only 0.029cd/m2, which is impressive for an LCD TV. If you turn on the Adaptive Backlight Control (local dimming), the black level immediately drops to 0.001cd/m2 but for reasons we'll discuss later we didn't always use it. The Panasonic also easily hit our standard dynamic range target for night time viewing of 120cd/m2, which means an on/off ratio of 4,138:1. It also delivered an ANSI contrast ratio of 3,795:1, which is excellent for an LCD TV and means that you can get a great contrast performance without resorting to the local dimming.
The DX750 is a relatively thin TV that uses edge LED backlighting and Panasonic have done a good job of ensuring the backlight is suitably uniform. There was a little bit of dirty screen effect and occasional bright edges but overall with normal viewing material the backlight performance was very good. At night in a dark room you could see some backlight issues but those were rare and easily mitigated with some bias lighting. There were more instances of brighter edges with HDR content and black bars on letterboxed films but since the DX750 only has a peak brightness of 500nits, it isn't as apparent as on brighter TVs like the Samsung KS9000.
Local Dimming and Viewing Angles
The Adaptive Backlight Control (local dimming) on the DX750 was a little disappointing, especially compared to the sophisticated system employed by Samsung, and even in the low mode we saw artefacts that were quite obvious at times. Although it was less an issue of haloing and more of a problem of the entire image obviously dimming in certain scenes. However since the native blacks and backlight uniformity are good, if you sit central to the screen there is very little difference with the local dimming on or off and at least when it's off you avoid any issues. In terms of the viewing angles the DX750 is obviously restricted due to its use of a VA panel but the viewing angles are certainly better than we experienced on Samsung's KS9000 or even Panasonic's own DX902. The DX750 has a filter over the screen that we assume is designed to reduce reflections but it also became slightly visible when there were bright images on screen such as with 3D or HDR content. It was only apparent when sat quite close, probably too close to the screen, but once noticed it could be distracting.
The motion handling on the DX750 was actually very good for an LCD TV and we were getting around 350 lines of motion resolution on our benchmark test. Obviously using the Intelligent Frame Creation (IFC) feature can improve this to the full 1080 using the Min setting but that immediately makes film look more like video. However there's certainly no reason not to experiment with IFC when watching sports and the Custom setting allows users to adjust the Blur Reduction and Film Smooth controls to suit their own preferences. There's also the Clear Motion feature which uses black frame intention to deliver improved motion handling but the image will be darker and some people are likely to experience flicker.
Standard and High Definition
The DX750 delivered a very good performance when it came to standard definition content, deinterlacing and upscaling shows such as Gotham and Agents of Shield very effectively. The images were free of unwanted artefacts and the natural colours and accurate greyscale helped to produce images that were very watchable on the 50-inch screen. It was during an episode of Agents of Shield that the limitations of the local dimming became apparent but we found that even with it off the picture was still very good, even at night. Things were even better once we moved on to high definition content with the BBC nature documentary Life in the Air looking stunning and the Netflix series Better Call Saul looking equally as impressive. When it came to Blu-rays the results were just as impressive, the DX750 handled 24p content without any issues and new releases such as Star Wars: The Force Awakens looked suitably film-like.
We haven't had much of a chance to test 3D this year, with most manufacturers reducing the number of supporting models and some dropping it entirely. Thankfully the DX750 supports the format and although it doesn't come with any glasses and Panasonic didn't send any with the sample, we had a pair on hand for testing. Which was just as well as the DX750 delivered a great performance when it came to 3D, producing bright and natural looking 3D images that were mainly free from crosstalk. The format might be losing popularity but if you're still a fan, you'll be happy with the DX750's capabilities in this area and new titles like The Martian and Inside Out looked great.
High Dynamic Range
Overall the DX750 delivered a very watchable experience in HDR and we certainly felt that the images retained better detail, colours appeared more saturated and the highlights popped with greater impact. There certainly appeared to be no adverse affects from the use of an 8-bit panel and watching Ultra HD Blu-rays on both the Samsung UBD-K8500 and Panasonic DMP-UB900 was certainly enjoyable. Ultra HD Blu-rays such as Chappie and Kingsman: The Secret Service looked wonderful, whilst The Amazing Spider-man 2 showed the format's true potential. If we had any criticism its that a screen size of 50-inches is about the lower limit in terms of gaining the benefit of any increase in resolution and a peak brightness of 500nits doesn't have quite the impact of TV's that can deliver the full 1,000nits. However when you consider the price point, the DX750 certainly makes a great gateway into the new and exciting world of HDR.
Panasonic TX-50DX750B Video Review
Input Lag & Energy Consumption
The energy consumption was also quite efficient, on a 50% raster the DX750 measured 71W in its default Normal viewing mode and a mere 61W in our calibrated True Cinema viewing mode. The level of consumption obviously increased when watching HDR content but even then the Panasonic was only measuring 126W, making it a good choice for the environmentally conscious TV enthusiast.
How future-proof is this TV?
|4K Ultra HD Resolution|
|Colour Space (percentage of Rec.2020 - 100% best)||66%|
|HDMI 2.0a Inputs|
|HDCP 2.2 Support|
|4K Streaming Services|
|Smart TV Platform|
|Picture Accuracy Out-of-the-Box (score out of 10)||8|
|What do these mean?|
- Excellent black levels
- Impressive video processing
- Accurate greyscale & colour gamut
- Decent HDR performance
- All the video streaming services you'll need
- Attractive design and ingenious stand
- Narrow viewing angles
- Can suffer from bright edges
- Mediocre local dimming
- Limited HDR capabilities
- Anti-reflection filter distracting
Panasonic DX750 (TX-50DX750B) Ultra HD 4K TV Review
Should I buy one?
The Panasonic TX-50DX750B is a solid all-round TV and, depending on your budget, you should definitely consider buying one. The DX750 has been designed to deliver a certain level of performance at a very specific price point and in that respect it performs well. The design is attractive and whilst the build quality could be better, the multiple stand configuration is ingenious. There are plenty of connections, including two HDMI 2.0a inputs, and our only complaint is that the side-facing inputs are too close to the edge. The 50DX750 is easy to setup and intuitive to use with extensive calibration controls. There's Panasonic's usual effective remote control, the option of a remote app and the excellent Firefox smart TV platform. The DX750B has plenty of features including all the main video streaming and TV catch-up services, as well good file support and even 3D.
The DX750 has a 44ms input lag and excellent energy efficiency, whilst the sound quality is surprisingly good when you consider the inherent limitations. The flat VA panel delivered excellent black levels for an LCD TV and overall the backlight uniformity was reasonably good. The viewing angles could be wider and there were instances of bright edges and haloing, especially when watching HDR content but this could be mitigated by using the local dimming. Unfortunately the local dimming wasn't always that effective, so we often found ourselves turning it off. The greyscale and colour accuracy were very good, both out-of-the-box and after calibration, whilst the video processing and motion handling were also impressive. The 50DX750B delivered a great picture in 2D with very natural images, whilst the performance in 3D was equally as impressive and suitably free of crosstalk.
Despite only using an 8-bit panel and being restricted to a peak brightness of just over 500nits, the DX750 still managed to deliver a great HDR performance that was surprisingly accurate. In fact the Panasonic TX-50DX750B often surprised, with a very solid performance that delivered an enjoyable viewing experience, earning itself a Recommend award in the process.
What are my alternatives?
There are a number of options at this price point but the obvious alternatives are the Samsung UE49KS7500 and the Sony KD-55XD8505. The Samsung UE49KS7000 is the closest in terms of price but is one inch smaller in terms of screen size and doesn't include 3D. However the Samsung does include a flat VA panel, an extensive set of features, device detection, a universal remote and HDR support with a 10-bit panel, wider colour gamut and 1,000nits of peak brightness. The Sony KD-55XD8505 is a bit more expensive but does use a 55-inch screen size, which helps justify the higher price tag. The Sony also doesn't support 3D but it does use a flat VA panel, support HDR and include the Android TV platform. Whilst either TV would be a good alternative, if you're looking for a good-value, nicely specified and well performing TV, the Panasonic DX750 is worth your consideration.
Contrast/Dynamic Range/Black Level
3D Picture Quality
Picture Quality Out-Of-The-Box
Picture Quality Calibrated
Ease Of Use
Value for Money
Our Review Ethos
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