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Optoma UHD35 & UHD35x Review – Inexpensive 4K Projector With Strong Features In The Test | Tech Reviews

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Optoma UHD35 & UHD35x Review – Inexpensive 4K Projector With Strong Features In The Test | Tech Reviews

 

4K projectors were long considered the holy grail of cineastes, but were rarely found in affordable areas. However, the Optoma UHD35x wants to offer you a lot for an RRP of 1049 euros*. In addition to a high 4K resolution, you get a very bright lamp with 3600 lumens and HDR support. A high refresh rate is also available for gamers, which even reaches a record-breaking 244Hz in 1080p. We will clarify in the test whether this blessing of features also has disadvantages – or if you can expect a real bargain.

Specifications Optoma UHD35 & UHD35x

Projection technology DLP
Resolution 4K (UHD) (3.840 x 2.160, 120Hz) Full-HD (1920 x 1080, 244Hz)
Aspect ratio 16:9, 16:10, 4:3
Brightness 3.600 ANSI Lumen (Standard)
Contrast 1.000.000:1
Projection size (diagonal) 33.07 inches (84cm) – 300 inches (762cm)
Projection distances 1.21 m – 9.90 m
Max. lamp life in hours 4000 (Bright Mode), 10,000 (ECO), 15,000 (Extreme ECO)
Keystone Correction (Keystone) +/- 30 degrees (vertical) manually
Connections Inputs
2 x HDMI 2.0
1x VGA (not
Outputs:
DC Out USB A (5V/2A)
1x 3.5mm Audio Out
1x 3.5mm Audio In (not for UHD35x)
Audio 1 internal 10W speaker
Power consumption Standard 305,00 Watt
ECO 220,00 Watt
Standby 0,50 Watt
Weight 3.9 kg
Dimensions / packaging 315 mm x 11 mm x 270 mm
Included supply Power cord, remote control, batteries for the remote control, printed quick start guide
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“Rounded and unfussy” – that’s the best way to describe the design of the Optoma UHD35x. Thanks to its glossy white surface, the projector is hardly noticeable when mounted on the ceiling or wall and blends in well with all kinds of interior designs.

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Optoma UHD35 4K projector Long shot above

Connection selection, scope of delivery & first commissioning

On the connection side, the Optoma projector does not allow itself any extravagance either. You get two modern HDMI 2.0 connections for operating 4K playback devices. The UHD35 (without x) also has a VGA input. Next to it is a control interface for the RS232 protocol. This can be used, for example, to install firmware updates. The built-in USB output is only used to charge devices, but unfortunately does not transfer any data. But you can use it to power an HDMI dongle, for example. A classic audio jack for sound is also on board the UHD35x. The UHD35 has two separate inputs and outputs.

Optoma UHD35 4K projector rear connections

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The photo shows the UHD35. The UHD35x comes without a VGA & audio-in connection and is otherwise identical in construction.

The only accessory included in the package is a power cord. At least one HDMI cable should have been included here that is approved for 4K resolution and 60Hz. Although this support usually applies to almost all HDMI 2.0 cables, there are also exceptions, for example with longer cable lengths.

Optoma UHD35 4K projector scope of delivery

Overall, the Optoma projector is well equipped with the connections, but could do with an HDMI cable in the scope of delivery. Incomprehensibly, this is missing.

Bright lamp with DLP technology

3600 ANSI lumens is a high value that should ensure a solid image even in brighter environments. Of course, you should plan to watch football in the garden in the evening hours, because the image from the projector clearly fades in strong sunlight. Nevertheless, the illumination remains extremely even over the entire image.


Quelle: Texas Instruments/YouTube

As with almost all projectors in the price segment under €1000, a classic DLP color wheel forms the technical substructure of the projection. This is used to color the lamp’s white light in the colors red, green and blue and forward it to a DLP chip. A mirror then passes the colored light on to the screen via the lens. The light thus hits the projection surface in layers.

Optoma UHD35 4K Beamer Front

Normally your brain combines this as a complete, homogeneous picture. Sometimes, however, color gradients can become visible, which is known as the rainbow effect (RBE). The Optoma has only one DLP chip – and would therefore be susceptible to the RBE – but in the test it was very elegant and delivered a very clean picture.

Optoma UHD35 4K projector remote control long shot

Finally a remote control that provides its most important functions directly at a glance. Both the important keystone correction and the lamp brightness can be controlled at the push of a button. Normally, I first study the instructions for projectors for five minutes, but here everything is illustrated in a self-explanatory manner. Various inputs can be selected directly via quick selection. Also very nice – and extremely important in dark rooms – is the illumination of the keys.

Optoma UHD35 4K projector Control buttons on the projector

In this way, the operation of home cinema fun does not degenerate into a lottery. The switches on the UHD35x are similar and illustrated in the same way. Keystone correction, menu selection, and directional buttons are all easy to use. Of course, the latter also depends on how the Optoma UHD35x is set up. In addition to table operation in front and rear projection, you can also hang it on a projector mount on the ceiling. A status LED also warns you if the lamp is too warm.

Optoma UHD35 4K projector stand

Briefly on the important keystone setting: the UHD35x unfortunately does not have an automatic correction on board, but with a little practice you can quickly find a suitable picture format in almost all installation situations. The unscrewable feet can also be helpful here.

Optoma UHD35 4K projector Picture settings menu

After you have managed to set it up correctly, you can then adjust the projector to suit your color and image preferences. The basis for this is formed by the seven image modes “Cinema”, “HDR”, “HLG (High Log GAMMA)”, “Game”, “Reference” and “Bright”. In the latter, the maximum is extracted from the Optoma’s lamp, while “Game” disables many image enhancers. This ensures a shorter input delay of the projector and can give you solid advantages in fast games.

However, everyday use of a cinema projector can usually be found in a darkened room. I would always recommend the cinema mode for this. In this case, the colors and the contrast are simply much richer, more extensive and ultimately more accurate. If you prefer to set everything according to your wishes, you can do this in an extensive submenu. So that you really understand all the functions of the projector, it is worth taking a look at the extensive user manual. It is available here as a PDF for download.

Optoma UHD35 4K projector remote control

The Optoma projector does not have any smart functions or apps, which is not surprising in this price range and with the otherwise offered feature set.

Picture Quality & Gaming: Bright cinema fun with a sharp picture

A few years ago, 4K projectors were almost unaffordable. Fortunately, that has changed for about two years and with the Optoma UHD35(x) you can now even get the combination of high resolution and refresh rate.

Optoma UHD35 4K Beamer Frontal 3

The 4K image is very good when operated via the home computer. Even the finest details are recognizable and are displayed in a size that you would only expect from televisions with five-digit prices. In the 4K version of The Lord of the Rings, you could even see the details of the now slightly outdated computer effects in the initial battle scenes on Mount Doom. In nature documentaries or newer feature film productions, such as “Judas & The Black Messiah”, the combination of high resolution and huge screen diagonals regularly amazes. Ideally, to best display this magic, get yourself a canvas.

Optoma UHD35 4K Beamer Dark

In my apartment, a woodchip wallpaper prevents the pure wall operation. The Celexon tripod screen I use is quick and easy to set up despite its 80-inch diagonal , highly portable thanks to the carrying case and impresses with a very high reflection quality. If you have a very smooth wall available, then the UHD35(x) can certainly achieve useful results on it. However, I would always recommend a screen for more serious users who want to get the most out of their projector.

Optoma UHD35 4K Beamer Focus Zoom iso

Speaking of the diagonal: a distance of just under 2.60m was enough to fill the 80 inch Celexon screen well. There is also a 1.1x magnification via the zoom function. You can set up the Optoma at a minimum distance of 1.21 m from the wall, then you will get a screen size of approx. 33 inches. Here you can calculate your individual projection distance. A maximum cinema size of 300 inches (or 7.62 m) is possible.

Optoma UHD35 4K projector daylight bright

Usable display in a very bright room

The 4K projector is also ideal for sports broadcasts. The best way to do this is to use the “Bright” picture mode outdoors. Colors in this one appear rather unnatural and heavily oversaturated, but you gain some contrast in return. A good choice for the (hopefully) joint public viewing in the summer of the European Championship. Sure, in the dark you get a much better display with “Cinema” – because here the projector shows very good contrast and pleasant colors.

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Optoma UHD35 4K Beamer Leinwand

In Full HD, the Optoma UHD35(x) has a refresh rate of up to 240Hz and makes it ideal for fast shooters or other competitive multiplayer games. However, the minimal input lag of around 4.4ms is particularly impressive here. This means that even dedicated gaming projectors are clearly left behind. Incidentally, there were never any ghosting or other problems during the test, which ensures an enormously direct gaming experience without visual restrictions.

Optoma UHD35 4K Beamer Gaming Leinwand

The HDR display could be tested via the PlayStation 4 Pro and the gaming PC. Widespread color representation in modern games like Cyberpunk 2077 or Spike Lee’s film Da 5 Bloods looks downright impressive on such a large format image.

But I would advise you against the “HDR-Sim” mode. This only increases the saturation of colors and gives you an unnecessary fake HDR. Anyone who likes candy colors might find happiness here – everyone else is best off ignoring them. A 3D display is also possible with the Optoma UHD35x. For this you need active shutter glasses.

Sound – No deep bass at all, but otherwise really usable

Integrated loudspeakers from Beamers are only suitable for the already mentioned football game in the garden. In the case of the UHD35x, however, Optoma really didn’t skimp. 10 watts are already well above the normal level of other projectors and this is also evident in practice: films and music are reproduced solidly.

Of course, due to the construction, there is no deep bass whatsoever, but the mids and highs are somewhat differentiated and are not overdriven. A minimal bass is also noticeable when placed on a table. However, you shouldn’t turn up the built-in speaker too much, because then the highs will be a bit uncomfortable. However, this only happens from about 80% volume – which is more than sufficient in most cases.

Optoma UHD35 4K Projector Speaker 10W

But if you want a cinematic sound that also fits the size and quality of the displayed image, then you can hardly avoid an external system.

Optoma UHD35 4K Projector Connections Video

The best way to do this is to connect an AV receiver and system via one of the HDMI connections or via S/PDIF. Analog fans can use the jack inputs and outputs to connect their stereo system or active speakers.

Operating volume and consumption – already quiet in normal mode, very good in “ECO”

Some projectors can make a lot of noise in bright operation. Not so the UHD35(x). I was really amazed that it was already running in “Bright” mode, because this is already pleasantly quiet at under 30 dB(A). For very quiet film fare or delicate semesters, “ECO” is still recommended. Here, the Optoma projector only emits a quiet noise, which even quieter film scenes easily drown out.

Optoma UHD35 4K Beamer Lens

Under “Dynamic”, the projector adjusts its fan speed to the respective light situation. Bright scenes are accompanied by the fan louder than dark ones. But I would advise you against “Extreme Eco”. Yes, the mode is even quieter, but it also swallowed up a lot of contrast. A flaw that can really only be endured by energy savers.

Optoma UHD35 4K projector fan

“Eco” remains the mode of choice if you want good picture quality and more comfortable power consumption. 220 watts are good compared to the 305 watts in normal mode. Incidentally, the lifespan of the lamp is of course also extended.

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Lamp replacement

As with a normal LED lamp, that of a projector will also have to be retired at some point. The lamp of the Optoma UHD35(x) lasts almost 4,000 hours (167 days in a row) in loud normal mode. If you use the very good Eco mode, you can even get 10,000 hours (417 days).

Optoma UHD35 4K projector maintenance screw

In this case you have to make do with less luminosity, but you can also look forward to a quiet fan. The ExtremeEco mode, on the other hand, is intended more for bargain hunters with very dark rooms. The displayed dynamic range of the image also suffers a bit here. According to Optoma, you can make ends meet for around 15,000 hours (625 days).

Optoma UHD35 4K maintenance hatch

If the time has come and the lamp needs to be replaced, you can loosen a screw on the side of the Optoma UHD35x and remove the service flap. You then remove the previous lamp with two additional screws.

Conclusion: Inexpensive all-round projector for movie buffs and gamers

The Optoma UHD35(x) is a real jack of all trades, because in addition to the very sharp and accurate image, it can also come up with gaming features that go beyond its actual cinema ambitions. Thanks to the extremely short input delay and very high refresh rate of 240Hz, you glide through games almost as smoothly as butter.

Optoma UHD35 4K projector remote control input selection

In addition, you are offered very good operation, which is easy to use both via the illuminated remote control and the buttons on the projector.

But what makes the UHD35 & UHD35x real price tips is the smooth-running ventilation of the very bright lamp. Normally, inexpensive projectors like to unleash an acoustic hurricane in the living room. Even the bright operating mode can keep up with the competition’s eco modes. “Eco”, on the other hand, is even recommended for sensitive cineastes who want to hear the quiet noise of the (film) wind in Kurosawa productions without being disturbed.

Optoma UHD35 4K projector page

Due to the bright lamp, the Optoma is also ideal for watching sports in the early evening in the garden or in brighter living rooms. Of course you lose contrast here, but overall the 4K projector is also convincing here. The high variety of connections leaves you spoiled for choice when it comes to the playback device and does not restrict you unnecessarily.

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One can only criticize the sparse scope of delivery without large accessories and the lamp replacement. The latter is always associated with a loss of warranty if you do it yourself, which shouldn’t have been the case.

Optoma UHD35 4K Beamer Frontal 2

 

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Hocainehttps://fadvices.com
A full time tech enthusiast with a passion for writing. Religiously follow everything new happening in the tech world and share my two cents with my audience here.
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