Re: Philips OLED754 : Reviews - Εντυπώσεις - Σχόλια
55"...[avforums.com]...Philips
55OLED754 review...
https://www.avforums.com/reviews/philips-754-55oled754-4k-oled-tv-review.17439
Calibrated
There are no ISF modes on the OLED754 and as such, we lose some of the ISFccc controls, namely the Colour Management System (CMS). This means that we will not be able to correct the Rec.709 colour gamut, but we still have two-point grayscale controls.
Unable to calibrate as there is no CMS
Sadly, as we have no CMS system on the Philips OLED754 we were unable to correct the wide tracking which was well over the Rec.709 standard and towards P3 wide colour. This did have an effect on the colour performance with normal SDR HD material looking too ‛hot’ with colours. We guess Philips had to cut corners and decided to go with wide colour over accuracy here.
Peak Brightness vs. Window Size
The Philips OLED754 measured 610 nits at 1, 2 and 5% window sizes and 605 nits at the industry-standard 10% window size. It then dropped off sharply as more of the screen brightens up with an aggressive Automatic Brightness Limiter (ABL) circuit dropping brightness down to 97 nits on a full 100% white screen. This ABL drop is seen within some HDR content where there is a sudden change to an image with a large amount of brightness over a large section of the screen. Oddly, it also does the same with some SDR content.
Πρώτη φορά η αναφορά για το παρακάτω βιντεο έγινε από Stergios Giotas
https://www.youtube.com/watch?v=AsIFN38tPbA
Verdict
The Philips OLED754 presents a lot of positives, including the price point, to make it appeal to many users. Those looking for absolute accuracy for SDR content and good gaming capabilities will be better looking elsewhere, but also at a higher price point. However, if image accuracy and fast gaming are not high on your agenda and you want to take advantage of the full-on P5 image processing, then the OLED754 offers superb value for money. There is no better image processing on the market at the moment that betters the P5 engine and you will be able to create bright, vivid and incredibly smooth images that have enhanced sharpness. It’s not for the purists but we know many readers who are happy enough to watch their TVs in the bright standard and vivid modes, and nobody does that better than Philips.
HDR is the strong point with the OLED754 at the price point with good peak brightness performance married to Dolby Vision and HDR10+ dynamic metadata and excellent dynamic tone mapping for HDR10 content. HLG is also supported for the odd broadcast item from the BBC in HDR. With HDR, the colour performance is a big step up in terms of accuracy from SDR and, although the ABL circuit is aggressive, the times this will make itself known are thankfully quite rare, so it shouldn’t impact on normal film and TV viewing in HDR.
The only other item to mention is the Saphi Smart TV system and the quadcore processing driving this. It is not as fast as higher-end TV models with WebOS and Tizen, or even the current Philips Android TVs. That lag in button press to something happening is a fraction longer in use, but everything does eventually work as it is supposed to. Apps are responsive once up and running and we had no technical issues at all with the system in daily use. But, it is noticeably laggy when compared to other current TV models. You have to accept that to hit this price point, items have to be cut back to save costs.
Overall, the Philips OLED754 will suit the larger general market and is a good buy at its current price point. If you’re looking for image accuracy for SDR or fast gaming response you will need to look elsewhere, but for everyone else, the TV certainly makes a compelling case for itself and the price tag will be appealing to some. It’s an OLED designed to hit a price point and offer the best possible performance, with that in mind it certainly succeeds. It comes recommended.
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Με παραξενεύει που δεν μπορούν να έρθουν τα χρώματα στην αναφορά Rec.709 σε SDR με τα ρυθμιστικά της εικόνας και παίζει υπερκορεσμένα. Επίσης αφού στο Calibrated Calibrated Greyscale τα χρώματα είναι στο ίδιο επίπεδο ,γιατί δεν έχουν έρθει στην αναφορά;
Μια βοήθεια από τους πιο ειδικούς του forum παρακαλώ.
Οι υπόλοιποι testers-reviewers δεν το έχουν δει;
[geex.x-kom.pl]...Philips 55OLED754 test...
https://geex.x-kom.pl/recenzje/philips-55oled754-test-i-recenzja-telewizora-oled-z-systemem-saphi/
Colors
The only factory mode with normal, ie, unpainted colors was, as expected, a "film". In this mode, the white was only a little warmer than it should be (6312K instead of 6505K), but this did not prevent us from getting good color reproduction (although not as good as in the more expensive 854 model).
The colors on the 55OLED754 screen are generally well saturated, while the analysis of the measurements showed that they are a bit brighter than they should be. If we lower the overall brightness (contrast option) from the factory 70 to 35, the average RGBCMY color mapping error will drop from 2.77 to 2.4.