Images on this page are of our standard resolution chart which provides for measurement of resolution up to 4000 LPH (Lines Per Picture Height). A value of 20 equates to 2000 lines per picture height. For each camera we use the relevant prime lens (the same one we use for all the other tests in a particular review). The chart is shot at a full range of apertures and the sharpest image selected. Studio light, cameras set to aperture priority (optimum aperture selected), image parameters default. Exposure compensation set to deliver approximately 80% luminance in the white areas.
What we want to show here is how well the camera is able to resolve the detail in our standard test chart compared to the theoretical maximum resolution of the sensor, which for the charts we shoot is easy to work out - it's simply the number of vertical pixels (the chart shows the number of single lines per picture height, the theoretical limit is 1 line per pixel). Beyond this limit (when talking about line pairs usually referred to as the Nyquist frequency) the sensor cannot faithfully record image detail and aliasing occurs.
This limit is rarely attained, because the majority of sensors are fitted with anti-aliasing filters. Anti-aliasing filters are designed to reduce unpleasant moiré effects, but in doing so, they also reduce resolution (the relative strength and quality of these filters varies from camera to camera). In theory though, a sensor without an AA filter, when coupled with a 'perfect' lens, will deliver resolution equal to its Nyquist limit. Therefore, even though it may be effectively unattainable with normal equipment in normal shooting situations, an understanding of a sensor's theoretical limit provides a useful benchmark for best possible performance. Nyquist is indicated in these crops with a red line.
On this page we're looking at both JPEG and Raw resolution. For a (more) level playing field we convert the latter using Adobe Camera Raw. Because Adobe Camera Raw applies different levels of sharpening to different cameras (this confirmed) we use the following workflow for these conversions:
- Load RAW file into Adobe Camera RAW (Auto mode disabled)
- Set Sharpness to 0 (all other settings default)
- Open file to Photoshop
- Apply a Unsharp mask tuned to the camera, in this case 100%, Radius 0.6, Threshold 0
- Save as a TIFF (for cropping) and as a JPEG quality 11 for download
|JPEG (4912 x 3264) 3.8MB||RAW (4912 x 3264) 3.7MB|
The NEX-5N's JPEG engine is capable of pulling genuine detail out of the chart up to around 2800 lp/ph, which puts it on almost exactly the same level as the Panasonic Lumix DMC-G3 which has a very similar number of vertical pixels. In RAW mode the 5N doesn't deliver much more 'true' detail but moiré patterning is very apparent from around 2800 lp/ph.
Looking at the impressive JPEG results, especially, the 5N's sensor appears to have an unusually light AA filter. Normally, in JPEG files we'd expect to see a detail-less blur from Nyquist onwards, but here, some lines survive beyond the sensor's Nyquist limit (although this is not 'true' detail). This is common in well-processed RAW files, but unusual in JPEGs.
Sep 28, 2014
Sep 24, 2014
Oct 4, 2011
Sep 5, 2012
|I see you by Phocal|
from Animal eye reflection
|Apocalyptic Sunset by Impact Photo|
from A wheel good photo!
|AU4_6418_BB-35 by DaveInHouston|
The patent details a flipping rear LCD screen so large, Canon has had to hide the rear dial and several buttons underneath.
We've added a selection of extra images to our Nikon D850 gallery. As part of the process of rounding off the review we made sure a number of us had shot the camera in a variety of situations, we've added those shots to the gallery to give a broad cross section of how the camera performs.
Wiral LITE is an affordable, easy-to-use cable cam system that can do things a portable slider simply can't do, and go places no slider would dare go.
Not happy with the recent demise of Lightroom as a stand-alone, subscription free service? Macphun's got your back... or they will in 2018.
Once connected to a PC, Mac, tablet or smartphone, Pholio automatically searches through the device storage and backs up all images and videos—complete with auto-tagging and intelligent search capabilities.
The 360 Round uses eight horizontally positioned camera pairs and one upward-pointing single lens to capture and livestream panoramic 4K 3D content.
Introduced just three years ago, the Samsung NX1 was both a technological tour-de-force and a great camera to use, earning one of the highest scores we've ever awarded and winning our 2015 Innovation Award. But its short-lived run in the photo world leaves us wondering what could have been.
The Fujifilm X-E3 is styled like a classic rangefinder, but features a built-in touchscreen, AF joystick, and electronic viewfinder – truly an old school meets new type of camera. Lay some eyes on our sample gallery to see how it performs in the real world.
Like it or not, Adobe is embracing a cloud-centric, AI-rich future with the introduction of Lightroom CC. And that's a great thing, though you may not see it now, argues Rishi Sanyal.
The announcement of a more cloud-integrated Lightroom product sees the death of the company's standalone version. This need to make payments in perpetuity (whether you choose Lightroom Classic or CC), chips away at the idea that your Lightroom library is a long-term solution, argues Richard Butler.
The XPro-C 2.4GHz wireless flash trigger that Godox released for Canon users last month now has a Nikon equivalent—the aptly named XPro-N. Sony, Fujifilm and MFT versions are in the works.
In the aftermath of hurricanes Harvey, Irma and Maria, camera and lens maker Sigma is extending its standard product warranty to cover damage caused by these three natural disasters.
The F4 Plus can can capture 360° stills, videos and broadcast livestream footage at 8K resolution... that's 7680 x 3840 pixels!
Lightroom is hogging the spotlight at Adobe MAX, but Photoshop CC got some substantial improvements as well. Find out what's new in the latest version of Photoshop CC.
The aptly-named 'Nude' app automatically detects NSFW images on your iPhone, moves them to a protected vault and deletes the original files in the camera roll and on iCloud.
The Zeiss Milvus family of manual-focus full-frame lenses just gained a new member. Meet the Zeiss Milvus 24mm F1.4: a fast, rugged new lens designed primarily for landscape and architecture photography.
Lightroom has built a brand new Lightroom CC from the ground up to be faster, easier to use, and cloud-based. The application formerly known as Lightroom CC will continue to exist, and will go by "Lightroom Classic CC."
Google Research did a deep dive on the Pixel 2 smartphone's background-blurring portrait mode that uses neural networking and dual-pixel technology instead of a dual-camera setup.
With the arrival of the PowerShot G1 X III, there are now seven Canon cameras built around the 24MP Dual Pixel sensor and Digic 7 processor. We take a look at the differences and what might prompt you to choose one over the others.
Meet the HP ZBook x2. The so-called 'world's most powerful and first detachable PC workstation,' it was built with creative professionals in mind, and is being debuted at Adobe MAX.
PDN sat down with Ahmed Fakhr, director of photography at RollingStone.com, to talk about how the famed publication is adapting to the changing photo and video needs of the modern era and how he 'evaluates the skills of potential contributors.'
Kudos to Canon. Earlier today, the camera giant announced that it had produced its 90 millionth EOS camera and 130 millionth EF-series lens.
The ROV Slider is a portable, motorized slider that promises to bring 'beautiful cinematic video and time-lapse' shooting to anybody with a smartphone, GoPro or DSLR that weighs less than 5lbs.
The new Surface Book 2 laptops come with Intel's 8th generation quad-core processors and NVIDIA GeForce GTX 1050 and 1060 GPUs. In other words: they pack a serious punch.
Leica is resurrecting a portrait lens from the 1930s: the Thambar-M 1:2.2/90. This lens features just 4 lens elements, and was famous for its spherical aberration that creates extremely soft images.
Google's Visual Core is an Image Signal Processor designed to power and accelerate HDR+ processing and other imaging tasks in the new Pixel 2 devices (and beyond).
The Google Pixel's camera is among the best we've reviewed, and its successor has already been hailed as class-leading. With expectations set high, the Pixel 2 has nonetheless left a very good first impression on us as we shot some initial sample images.
Leica is one of the oldest names in photography, and has long been one of the most prestigious. Recently, we had the opportunity to visit Wetzlar, to see for ourselves how Leica's lenses are put together.
Canon went and put an APS-C sensor in a G series compact. The result is a mighty tempting camera for travel.
Google Photos is adding a few pet-friendly features that will make it easier to find photos of your favorite pooch. Now, you can organize your pet photos by facial recognition, and you can even search your library by breed.