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Resolution Chart Comparison (JPEG and Raw)

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 (which when talking about line pairs is 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, here 170%, Radius 0.4, Threshold 0
  • Make 100% crops and save the original file at JPEG quality 11 for download
JPEG (4352 x 3264) 2.0MB JPEG (4352 x 3264) 5.3MB

Vertical resolution

JPEG
Raw

Horizontal resolution

JPEG Raw

With a high quality lens (such as the Nikkor 50mm F1.4 that we use for our studio tests) the D3200's 24MP pixel count results in high levels of detail. However, the out-of-camera JPEGs, while clean of artifacts, are a little soft and and only resolve accurately up to approximately 3000 lp/ph which is less than we would expect from a camera with a 24MP sensor.

Converting your raw files and applying a customized unsharp mask (170%, 0.4 radius in our case) will get you a significant amount of additional detail. In our examples, here, there is some detail (albeit not 'true' almost up to the Nyquist limit of 4000lp/ph, which is the theoretical limit of the D3200's sensor resolution. You pay for it with some moiré patterning but in real-life images this is much less of an issue than it might appear from our test-chart. As always, if detail resolution is your priority, raw files provide a much better starting point than out-of-camera camera JPEGs.

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Comments

Total comments: 9
ibrahimbeno
By ibrahimbeno (3 weeks ago)

thank you for this useful information, i really like the Nikon D3200, it's be the door of much people to photography world and i can said that it's the best for beginners, because it's simple - low price - 24.2 MP ...i creat a post about features of Nikon D3200 and why it's the best for beginners (see my profile)

Comment edited 2 times, last edit 5 minutes after posting
0 upvotes
SUNNY PARAMUNDA
By SUNNY PARAMUNDA (1 month ago)

Its horrible to hear some bad news related with d3200 as i purchased it last week.I am a new one in SLR,and have less experience with SLR camera.Today i downloaded the update of firmware and finally decided to give up the attempt after reading the reviews related with the new update.Now i ordered for a 35 mm F1.8 prime lens.Now i think the move was totally foolish one

0 upvotes
dvalente
By dvalente (1 month ago)

Sunny,
I am a novice DSLR user as I have only used point and shoot cameras up until last year. Two days ago, I took my camera into Kenmore camera (our local store) as they asked to look this issue. I may have had a setting incorrect after the camera came back from Nikon Service. It appears to be working acceptably now with the 35mm, F1.8 lens. I will see if I can delete my earlier post. Keep in mind, you may need to send your camera to Nikon to get the autofocus adjusted (this is free during the warranty period)to work acceptably with F1.8. The other thing I realized is the focus system can have a hard time determining what to focus on in different lighting and in low contrast conditions (this may have contributed to my problem after the camera returned from service). I am still learning the camera and each new item I get (F1.8 lens in this case) is a new learning curve.

Dean

0 upvotes
ibrahimbeno
By ibrahimbeno (3 weeks ago)

Don't be sad, i always suggest Nikon D3200 for beginners, because it's teaches and encourages those who are new to DSLR technology.
i've created a comparison chart at http://nikond3200news.blogspot.com/2014/06/nikon-d3200-is-it-best-dslr-camera-for-beginner.html that compares the D3200 to the D7XXX serie,D5XXX and Canon cameras under 700$. don't make any buying decision till read it.

0 upvotes
dvalente
By dvalente (1 month ago)

I've had my D3200 for almost a year. I was happy with it until purchasing a 35mm F1.8 prime lens. I found at F1.8 the actual focus was behind the subject by about 4". I sent the camera back to the factory (warranty service) and had the autofocus adjusted. The focus is only slightly better than before. If you stick with the kit lenses, you won't notice this as you have a larger depth of field. It's possible not all D3200 cameras behave this way; mine does. If I use the prime lens, I start around F4 and don't go lower.

Comment edited 59 seconds after posting
0 upvotes
dvalente
By dvalente (1 month ago)

I would like to modify or delete this post but apparently, I can't do that. The post is correct except for after the camera came back from service. By the way, Nikon service did verify my focus issue was valid. The camera focuses properly at F1.8 now. I found the camera can struggle to determine what to focus on depending on lighting and sometimes the subject itself. It's possible this is normal. I am a novice photograhper and am learning my gear and it's limitations.

0 upvotes
gloomvision
By gloomvision (2 months ago)

i love it. im using the camera for filming.
im gonna let the camera speek for it self.
<iframe width="560" height="315" src="//www.youtube.com/embed/gnkwdy4xhS8?rel=0" frameborder="0" allowfullscreen></iframe>

0 upvotes
FuduNYC
By FuduNYC (3 months ago)

I have been using this camera for 6 months now. Prior to this I had a D90 and I miss the LCD display and the extra control. It just takes a bit of getting used to.
The 24mp CMOS is very useful for crop-zooming. Got a good price on it in Dubai Duty Free.

0 upvotes
omarasl
By omarasl (9 months ago)

thanks a lot for this huge amount of useful information
actually in digital cameras world Nikon is my only choice

1 upvote
Total comments: 9