Watching Over

by Vian Esterhuizen

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A smartphone is a telephone that is also capable of running programs, usually called Apps. They almost always have cameras in them.

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44 views

Android camera application that allows earbud mic clicker to snap pictures?

Is there an Android application that allows a user to snap pictures by clicking the microphone or volume button(s) located on earbuds? I'd rather use this than touching anything on the smartphone.
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3answers
865 views

Why don't smartphones default to 4x6? [duplicate]

The most common ratio of picture to print (by far) is 4x6. So why don't smartphones default to this aspect ratio?
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0answers
125 views

Are mobile phone camera lenses good enough to support 20MP sensors?

With mobile phone cameras approaching 20 MP while maintaining small sensor sizes, pixels dimensions are typically around 1 μm or lower. What about the lenses? Are they good enough to produce an Airy ...
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1answer
84 views

How do add on macro smartphone lenses allow you to take macro photos?

It may sound obvious, but how exactly does an add on macro lens allow you to take close up photos? Can someone give technical reasons? I'd like to know the physics behind add on macro lenses and how ...
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1answer
33 views

Can smartphone applications allow you to take macro photos? [duplicate]

Are there any smartphone applications that will allow you to take macro photos? If not, why aren't there?
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1answer
48 views

Why do I need an add-on lens to take smartphone macro photos?

Why do you need an external macro lens for a smartphone to take macro photos. Why can't the smartphone lens itself take macro photos?
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3answers
61 views

How can I get better photos of people on a lit stage using a Galaxy S5 phone?

Using a Galaxy S5 cell phone in low light indoors I want to get the best shots of people on a lit stage from maybe 25 ft away. Faces tend to get blown out from white light. Post processing doesn't ...
4
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1answer
90 views

Giving compact digital camera a Brain

I read this article Give your DSLR a brain by connecting an android phone and was amazed by how a DSLR camera can become a much smarter device after connecting with an Android phone (with the help of ...
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2answers
193 views

How to estimate camera sensor size?

I am using a smartphone for capturing photos and I need to estimate the camera sensor size (mm*mm). I have the resolution (in pixels) and the focal length (in pixels). I can also measure the size of ...
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3answers
355 views

What's the dynamic range of the iPhone 6 Plus?

... or other mobile devices such as the iPhone 5s, Nexus 6 or iPad Air 2? Everyone says that the dynamic range of mobile devices is lower, but how much lower? For comparison, an APS-C camera like ...
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0answers
42 views

Weird Corruption in Overexposed Areas

When shooting photos with my friends's mobile phone, overexposed areas get weird horizontal lines while well-exposed areas look fine. Sometimes it also has some moiré-like color patterns. What ...
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2answers
285 views

HDR smartphone cameras: is it done in hardware or software?

Let's say I want to take the highest dynamic range pictures with a smartphone camera. Do I need to look for a specific sensor with better hardware for HDR photos, or find the best camera app because ...
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1answer
337 views

Why the faces in the corner tends to skew a bit in almost all smartphone cameras

I have noticed in almost all the smart phones I have used, the faces of people in the corners (either side) tends to skew a bit in all smartphone cameras. Is it something the lens is not as good as ...
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1answer
52 views

Smartphone/Tablet assistant Apps

Are there Apps which assist and can help making better photos. Like shuttersnitch which warns when shutter speed, aperture, and more doesn't fit. Or a photo asssitant systems which provide some sort ...
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1answer
852 views

Which is the best photo editing app for Symbian OS? [closed]

I have a Nokia 808 Pureview with 41 mega pixel sensor. It uses Symbian OS. I am looking for an app similar to Photoshop App on Lumia 720 for the Nokia 808 Pureview. The features that I'm looking for: ...
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1answer
25 views

How to Choose Light mode while using Mobile Camera?

Which mode is best fit to take pictures at dusk using a mobile camera,will auto mode work fine or something else. For your information: I use a moto-e and Nexus 4 as my camera. and i use the default ...
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1answer
73 views

Why is the external lens for my smartphone blurry when not at full zoom?

I've just bought an optical zoom lens for my Samsung S4 (I'm a web developer and blogger so I thought that it would be a handy tool for taking photo's when out and about without my main camera). The ...
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1answer
326 views

What is required to trigger an optical slave?

I previously asked a question about how to trigger a flash unit with a smartphone such as an iPhone here: Can I trigger my Canon flash with an iPhone?. The top answer suggested that I simply put the ...
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0answers
49 views

increase resolution by taking several pictures - is it done? [duplicate]

What if I took two or more picture of the subject quickly one after another, then used these images to increase resolution? It seems to me that if I take two pictures of the same thing, then my ...
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3answers
388 views

Phone camera (Samsung S4): is it possible to determine the distance to the object in focus on jpg picture?

I took a picture with Samsung S4 phone. Is it possible to determine the distance to the object on the picture? The object is in focus. I looked at the JPG picture properties but could not find ...
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2answers
94 views

How can I best add depth sharpness with Adobe Photoshop?

I've made a nice picture with my smartphone, but I would like to have a more focused picture (sharp focus and blurred background). How can I do this in Photoshop to obtain the best result? Things I ...
2
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1answer
203 views

How to enhance a cameraphone photo so you can see stars?

In the context of star photography, clearly you are not going to get as good of a photo with a smartphone camera as you could with a real camera and a long exposure. However, provided you have taken a ...
8
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1answer
1k views

Can a photo app for Android improve image quality?

Is there an app to post-process the photos (taken by phone's camera) to improve their quality ? I was told that IPhone makes better photos because of good (built-in) post-processing software. Is ...
2
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1answer
87 views

Is the 'mono' setting in smartphone cameras a form of grayscale?

In the description, my smartphone camera describes the 'mono' setting as being black and white, but it appears more to be grayscale - am I right in this assumption? Also, if it is grayscale, how is ...
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2answers
101 views

what would the most effective metrics to compare the quality of photos taken from a smartphone/iPhone and a digital still camera?

Essentially, are there any criteria/metrics that would allow the viewer to tell whether a digital photo has been taken using a smartphone or iPhone compared to that of a DSC? Or is it a case that ...
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2answers
414 views

Is “Ultrapixels” just marketing or is there a real benefit?

HTC has branded the sensor in its new phone (the HTC One) to be "Ultra pixels". For the same sensor size it only gives you 4MP where today's standard for top of the line smartphones is 8MP and up. Of ...
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2answers
15k views

How does focus work on mobile phone cameras?

How does focusing work on mobile phone cameras? Aren't their optics simple enough to not have any moving parts whatsoever? If so, how come most smartphones have an auto-focus, and with various ...
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1answer
306 views

How can I control exposure via a smartphone API when lighting changes? [closed]

I'm trying to create a smartphone application on iOS/Android that uses image processing. I'm experiencing the following problem: when I am recording and a new object (mostly white) enters the ...
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6answers
6k views

is it possible to get “bokeh balls” using a cellphone camera?

Is it possible to get "bokeh balls" using an cellphone camera? I'm using an iPhone but the question could apply to any cameraphone. bI'm sure there are a lot of apps which allow you to insert fake ...
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5answers
14k views

How well do smart phone light meter apps work?

There are a number of smart phone apps which use the phone's camera as a light meter. How well do these work? The metering built into most modern cameras is very powerful and accurate, but in some ...
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4answers
12k views

What is the purpose of a dual LED flash?

I see that some smartphones now have dual LED flash. What exactly is the purpose of a dual LED flash? Anything to do with brightness? What can a dual do that a single flash cannot? Would a triple LED ...