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BatteryWe put the Oppo Find N2 Flip through our rigorous DXOMARK Camera test suite to measure its performance in photo, video, and zoom quality from an end-user perspective. This article breaks down how the device fared in a variety of tests and several common use cases and is intended to highlight the most important results of our testing with an extract of the captured data.
Overview
Key camera specifications:
- Primary: 50MP sensor, 23mm equivalent f/1.8-aperture lens, PDAF
- Ultra-wide: 8MP sensor, 112˚ field of view, f/2.2-aperture lens
Scoring
Sub-scores and attributes included in the calculations of the global score.
Oppo Find N2 Flip
Use cases & Conditions
Use case scores indicate the product performance in specific situations. They are not included in the overall score calculations.
Outdoor
Photos & videos shot in bright light conditions (≥1000 lux)
Indoor
Photos & videos shot in good lighting conditions (≥100lux)
Lowlight
Photos & videos shot in low lighting conditions (<100 lux)
Friends & Family
Portrait and group photo & videos
122nd
81st
Pros
- Good exposure and wide dynamic range in photo and video
- Fairly good texture/noise tradeoff in photo
- Low noise levels in video
- Fairly wide depth of field
- Accurate depth estimation and nice blur gradient in bokeh mode
- Fast video autofocus
Cons
- No zero shutter lag
- Exposure instabilities indoors and in low light in photo and video
- White balance casts and inaccurate color in some conditions in photo
- Fusion artifacts and ghosting in photo, strong luminance noise on moving objects in video
- Lack of detail at all tele zoom settings
Oppo has added a flip phone to its line-up with the Find N2 Flip, which given its novel format and price, finds itself among the Ultra-Premium smartphones in the DXOMARK database.
With an overall camera score that was a few points higher than the slightly older Samsung Galaxy Flip4, the Find N2 Flip’s primary camera delivered good image quality in both photo and video mode, particularly with a good texture/noise tradeoff. Still images featured good exposure and a wide dynamic range, especially when shooting landscape scenes.
What held the N2 Flip back from a higher ranking were the instabilities in exposure, white balance and autofocus, as well as poor video stabilization, especially when capturing scenes with motion.
Zoom performance was limited, which could be partially attributed to the physical design of the phone. Captured detail was low at all tele settings, mainly because the device lacked a dedicated tele camera, something most Ultra-Premium phones usually have. However, the device’s flip design leaves little room for an additional lens. The Oppo also does not have a macro mode. Portrait results in bokeh mode were nice, but overall, the Find N2 Flip camera struggled to keep up with the best in class in the Ultra-Premium segment.
Test summary
About DXOMARK Camera tests: DXOMARK’s Camera evaluations take place in laboratories and in real-world situations using a wide variety of subjects. The scores rely on objective tests for which the results are calculated directly by measurement software on our laboratory setups, and on perceptual tests in which a sophisticated set of metrics allow a panel of image experts to compare aspects of image quality that require human judgment. Testing a smartphone involves a team of engineers and technicians for about a week. Photo, Zoom, and Video quality are scored separately and then combined into an Overall score for comparison among the cameras in different devices. For more information about the DXOMARK Camera protocol, click here. More details on smartphone camera scores are available here. The following section gathers key elements of DXOMARK’s exhaustive tests and analyses. Full performance evaluations are available upon request. Please contact us on how to receive a full report.
Photo
Oppo Find N2 Flip
169
For scoring and analysis, DXOMARK engineers capture and evaluate more than 2,600 test images both in controlled lab environments and in outdoor, indoor and low-light natural scenes, using the camera’s default settings. The photo protocol is designed to take into account the main use cases and is based on typical shooting scenarios, such as portraits, family, and landscape photography. The evaluation is performed by visually inspecting images against a reference of natural scenes, and by running objective measurements on images of charts captured in the lab under different lighting conditions from 1 to 1,000+ lux and color temperatures from 2,300K to 6,500K.
In photo mode, the Oppo Find N2 Flip delivered good exposure and a fairly wide dynamic range in most conditions. However, our testers observed some exposure instabilities, especially with motion in the scene. Color rendering was not always accurate, with occasional color casts and white balance instabilities. In addition, a lack of zero shutter lag meant that the camera was slower to record the image than some rivals, making it more difficult to capture the “decisive moment.” When capturing scenes with motion, fusion artifacts, ghosting or color artifacts could be noticeable on the subject, but the Oppo Find N2 Flip provided a fairly good texture/noise tradeoff in most situations, recording images with decent texture and detail.
Exposure
Oppo Find N2 Flip
130
Color
Oppo Find N2 Flip
130
Exposure and color are the key attributes for technically good pictures. For exposure, the main attribute evaluated is the brightness of the main subject through various use cases such as landscape, portrait, or still life. Other factors evaluated are the contrast and the dynamic range, eg. the ability to render visible details in both bright and dark areas of the image. Repeatability is also important because it demonstrates the camera's ability to provide the same rendering when shooting several images of the same scene.
For color, the image quality attributes analyzed are skin-tone rendering, white balance, color shading, and repeatability. For color and skin tone rendering, we penalize unnatural colors but we respect a manufacturer's choice of color signature.
Autofocus
Oppo Find N2 Flip
125
Autofocus tests concentrate on focus accuracy, focus repeatability, shooting time delay, and depth of field. Shooting delay is the difference between the time the user presses the capture button and the time the image is actually taken. It includes focusing speed and the capability of the device to capture images at the right time, what is called 'zero shutter lag' capability. Even if a shallow depth of field can be pleasant for a single subject portrait or close-up shot, it can also be a problem in some specific conditions such as group portraits; Both situations are tested. Focus accuracy is also evaluated in all the real-life images taken, from infinity to close-up objects and in low light to outdoor conditions.
Texture
Oppo Find N2 Flip
124
Texture tests analyze the level of details and the texture of subjects in the images taken in the lab as well as in real-life scenarios. For natural shots, particular attention is paid to the level of details in the bright and dark areas of the image. Objective measurements are performed on chart images taken in various lighting conditions from 1 to 1000 lux and different kinds of dynamic range conditions. The charts used are the proprietary DXOMARK chart (DMC) and the Dead Leaves chart.
Noise
Oppo Find N2 Flip
117
Noise tests analyze various attributes of noise such as intensity, chromaticity, grain, structure on real-life images as well as images of charts taken in the lab. For natural images, particular attention is paid to the noise on faces, landscapes, but also on dark areas and high dynamic range conditions. Noise on moving objects is also evaluated on natural images. Objective measurements are performed on images of charts taken in various conditions from 1 to 1000 lux and different kinds of dynamic range conditions. The chart used is the Dead Leaves chart and the standardized measurement such as Visual Noise derived from ISO 15739.
Artifacts
Oppo Find N2 Flip
82
The artifacts evaluation looks at lens shading, chromatic aberrations, geometrical distortion, edges ringing, halos, ghosting, quantization, unexpected color hue shifts, among others type of possible unnatural effects on photos. The more severe and the more frequent the artifact, the higher the point deduction on the score. The main artifacts observed and corresponding point loss are listed below.
Preview
Oppo Find N2 Flip
93
Preview tests analyze the image quality of the camera app's preview of the image, with particular attention paid to the difference between the capture and the preview, especially regarding dynamic range and the application of the bokeh effect. Also evaluated is the smoothness of the exposure, color and focus adaptation when zooming from the minimal to the maximal zoom factor available. The preview frame rate is measured using the LED Universal Timer.
Zoom
Oppo Find N2 Flip
164
DXOMARK engineers capture and evaluate over 400 test images in controlled lab environments and in outdoor, indoor, and low-light natural scenes, using the camera’s default settings and pinch zoom at various zoom factors from ultra wide to very long-range zoom. The evaluation is performed by visually inspecting the images against a reference of natural scenes, and by running objective measurements of chart mages captured in the lab under different conditions from 20 to 1000 lux and color temperatures from 2300K to 6500K.
The Oppo Find N2 Flip provided good target exposure in outdoor and indoor conditions across the entire zoom range. However, in more challenging conditions, for example, backlighting, dynamic range was limited, resulting in highlight clipping. As when shooting with the primary camera, white balance casts were noticeable, especially under indoor conditions or in low light. Compared to rivals in its class, the level of captured detail was low, both at ultra-wide and tele settings. Apart from some shadow noise, noise was well under control on the ultra-wide camera. However, it was more intrusive on tele shots, especially in low light, where coarse luminance noise started to appear.
Wide
Oppo Find N2 Flip
122
These tests analyze the performance of the ultra-wide camera at several focal lengths from 12 mm to 20 mm. All image quality attributes are evaluated, with particular attention paid to such artifacts as chromatic aberrations, lens softness, and distortion. Pictures below are an extract of tested scenes.
Tele
Oppo Find N2 Flip
120
All image quality attributes are evaluated at focal lengths from approximately 40 mm to 300 mm, with particular attention paid to texture and detail. The score is derived from a number of objective measurements in the lab and perceptual analysis of real-life images.
Video
Oppo Find N2 Flip
159
DXOMARK engineers capture and evaluate more than 2.5 hours of video in controlled lab environments and in natural low-light, indoor and outdoor scenes, using the camera’s default settings. The evaluation consists of visually inspecting natural videos taken in various conditions and running objective measurements on videos of charts recorded in the lab under different conditions from 1 to 1000+ lux and color temperatures from 2,300K to 6,500K.
The Oppo Find N2 Flip’s video performance was overall fairly good but did not quite match the best devices in the Ultra-Premium segment. Videos were generally well exposed but our testers observed frequent exposure instabilities. Color was generally nice but white balance casts were noticeable, especially in indoor lighting and under low light. A fairly good texture/noise tradeoff was one of the device’s strengths in video mode, especially in bright light, with high levels of detail and low noise. This said, noise became quite intrusive on moving subjects. Overall, video artifacts were quite well under control, but our testers observed some ringing and aliasing. A lack of optical image stabilization meant that sharpness differences between frames and residual motion were often noticeable when walking and running while recording.
Exposure
Oppo Find N2 Flip
116
Color
Oppo Find N2 Flip
120
Exposure tests evaluate the brightness of the main subject and the dynamic range, eg. the ability to render visible details in both bright and dark areas of the image. Stability and temporal adaption of the exposure are also analyzed.
Image-quality color analysis looks at color rendering, skin-tone rendering, white balance, color shading, stability of the white balance and its adaption when light is changing.
Texture
Oppo Find N2 Flip
118
Texture tests analyze the level of details and texture of the real-life videos as well as the videos of charts recorded in the lab. Natural videos recordings are visually evaluated, with particular attention paid to the level of details in the bright and areas as well as in the dark. Objective measurements are performed of images of charts taken in various conditions from 1 to 1000 lux. The charts used are the DXOMARK chart (DMC) and Dead Leaves chart.
Noise
Oppo Find N2 Flip
120
Noise tests analyze various attributes of noise such as intensity, chromaticity, grain, structure, temporal aspects on real-life video recording as well as videos of charts taken in the lab. Natural videos are visually evaluated, with particular attention paid to the noise in the dark areas and high dynamic range conditions. Objective measurements are performed on the videos of charts recorded in various conditions from 1 to 1000 lux. The chart used is the DXOMARK visual noise chart.
Stabilization
Oppo Find N2 Flip
119
Stabilization evaluation tests the ability of the device to stabilize footage thanks to software or hardware technologies such as OIS, EIS, or any others means. The evaluation looks at residual motion, smoothness, jellow artifacts and residual motion blur on walk and run use cases in various lighting conditions. The video below is an extract from one of the tested scenes.
Artifacts
Oppo Find N2 Flip
86
Artifacts are evaluated with MTF and ringing measurements on the SFR chart in the lab as well as frame-rate measurements using the LED Universal Timer. Natural videos are visually evaluated by paying particular attention to artifacts such as aliasing, quantization, blocking, and hue shift, among others. The more severe and the more frequent the artifact, the higher the point deduction from the score. The main artifacts and corresponding point loss are listed below.
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