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Questions tagged [smartphone]

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

3
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2answers
853 views

How do recent smartphone obtain higher resolution pictures through pixel binning

First of all I should assert the fact that I have no particular knowledge in photography. I am not qualified to understand technical processes. However, I recently came accross some debates about ...
-1
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0answers
58 views

Can the scanning speed of an electronic rolling shutter CMOS sensor be controlled?

I've asked these under Electrical Engineering SE earlier, but it seems I'm not getting any answers there so I'm trying here. I want to program something that makes use of the effects caused by the ...
1
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2answers
113 views

Are there particular limits to camera phone print size, beyond general rules of thumb?

So at time of writing a number of high end phones are available with 24 or even 40 megapixel cameras on them. Assuming good conditions, (good light, still setting, tripod?!) What would be the largest ...
2
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2answers
84 views

What attachments to get shallow depth of field with a smartphone?

I'm doing a research project involving machine vision, and would ideally like to find a lens with a shallow DoF (perhaps about 2m or so in-focus) that can be attached to a smartphone. Something that ...
0
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1answer
44 views

Defective Black Eye Macro 64

I bought this black eye for my iPhone and the instructions are very simple: Place the lens on the camera. I did so and and I see is a blurry display through my phone. I put the sense on properly ...
0
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1answer
147 views

Although I choose to auto-connect, Android Smartphone keeps refusing DSLR's wifi, as no internet found

At first time connecting my smartphone to DSLR's wi-fi, I get a message box stating that no internet access could be reached, and asking if I want to keep connection though. So, I just tap "yes, don't ...
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4answers
83 views

What hardware specifications make a great phone camera?

I know that iPhones have great cameras but what technology underlies great phone cameras? Intuitively, the number of megapixels is only a tiny part of the story. From wikipedia, I can see the iphone ...
0
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2answers
137 views

Can i stack both a lens and a (variable) ND filter on a phone camera?

I am o total noob so forgive the blunders. I am interested in filming my travels with a Samsung S7 mobile phone, so the upper level of amateur is enough for me. So video, not photo. What i want is to ...
2
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3answers
105 views

Use phone as an external flash

I have a DSLR that was given as a present and I cannot afford a real external flash, however the flash on my phone is powerful enough to use. The reason I wanted to use an external flash is to have ...
3
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1answer
1k views

Camera Phones with longer focal lengths for Portraits?

It seems most cell phone cameras are in the 25-35mm wide-angle focal range, which produces less-than-desired proportions when taking photos of people. Some phones have a "portrait mode", but this ...
1
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1answer
74 views

How do multi-camera phones deal with close subjects?

For a system that uses data from multiple cameras to create a single image, such as on some Huawei phones with multiple cameras, how does it deal with close subjects? Cameras are only few tens of mm ...
2
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1answer
78 views

Weird orange artifacts in smartphone image of a white light source [duplicate]

In my work (lab research), I have need to take digital photos of thin transparent gels sitting on and being illuminated by a white light box. When I try to take a digital photo, weird orange bands ...
2
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3answers
310 views

Why is there a purple blur around fire in photos?

Why is there a purple blur around fire in photos? I'm using a Sony Xperia phone.
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1answer
258 views

Xiaomi Redmi 4A astrophotography [duplicate]

i own a Xiaomi Redmi 4A smartphone and i have access to fairly dark site to observe the night sky.I would like to know if it is possible to get a good photo of the milky way. (f/2.2 , I can choose ...
4
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1answer
167 views

Are all the RAW files the same?

I have an android phone that is able to take the photos on RAW mode. Would it contain the same information as a DSLR camera? That brings another question, do the raw photos from all the DSLR cameras ...
3
votes
2answers
660 views

Can the Canon 6D connect to a phone's WIFI hotspot and talk to the Canon app on that phone?

Is the Canon 6D capable of talking to a phone over the phone's WIFI hotspot? What I want to accomplish is to connect the camera to the phone without losing internet access for easy sharing of images ...
4
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3answers
354 views

How to take photos of planets with smartphone?

I'm not sure if this the right forum to post this question. I'm trying to find what is the best option to take photos of planets using smart phone. I have a Google Pixel XL, and I'm looking for a good ...
3
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1answer
414 views

Why is the field of view angle from exiftool different from Apple's official values?

I have two series of photos shot on my iphone 6s on 10.3.2. The first series is in the regular frame, and the second series is in the "square" frame. I'm using exiftool 11.01 on macOS 10.11.6. From ...
16
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6answers
6k views

Why is this smartphone picture better than this dedicated camera picture?

The other day I went hiking through a mountain in west Tokyo to take wilderness pictures for reference for the new videogame I'm working on. For the past few years, I've only relied on my smartphone ...
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3answers
204 views

How can I achieve more depth of field on macro shots with a smartphone camera?

How can I get more depth of field for macro photography with a smartphone (Huawei Honor 8) camera? I am trying to do some macro photography work using my smart phone and a custom-made macro lens. My ...
2
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1answer
166 views

Will a clip-on zoom lens correct the distortion of a wide-angled smartphone lens?

My friend wants to shoot a vlog style series and she doesn't currently own a DSLR, so she was going to shoot with her smartphone. I am aware of the natural distortion of features (noses, foreheads, ...
-1
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1answer
136 views

What differences will I see with a high-quality vs budget monocular add-on lens for a phone camera?

I am looking for a good monocular that I could use with my mobile phone. I have seen the Zen Ray ZRS, the Vortex Solo and the Opticron. These are all a bit rich for my pocket. So what are the must ...
18
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3answers
6k views

How can a smartphone take pictures of a landscape with everything in focus?

After the announcement of the new Samsung Galaxy S9 with the new camera that changes aperture, I caught myself wondering: if smartphones have such a wide aperture (f/2.8, f/2.2, etc), how are ...
3
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4answers
209 views

Use phone location data for photos

I used a Canon 6D before which geo-tagged my photos, but switched to a 5D mk III for a while which does not have a built-in GPS. I miss this information a lot. Canon external GPS is expensive and ...
2
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6answers
1k views

High end smartphone camera vs. high end compact camera for beginner?

My friend has a natural knack for taking photos and I would like to encourage this skill by buying her a better camera along with a photography book. Currently, she uses a cheap smartphone camera ...
2
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2answers
104 views

Which smartphones features are important for macro photography?

My current phone is a Galaxy S5: F/2.2 aperture, 1/2.6 sensor, 16 megapixels. With that I can take detailed closeups of bugs and such. I typically shoot a photo as close to the subject as focus allows,...
0
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1answer
345 views

Choosing a smartphone for HDR

My previous related questions: What should I look for in a phone camera to get results with less noise in HDR photos? What smartphone specs should I look at for fast RAW exposure bracketing? I have ...
0
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1answer
62 views

What is the cause of this speed-dependent distortion? [duplicate]

I took this shot using a Sony Xperia SP with OpenCamera, here are some details: Exposure: 1/800 ISO: 50 Aperture: f/2.4 focal length: 3.0 The photo was taken out of a train, at around 160km/h, the ...
0
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1answer
130 views

How can I handle smartphone and SLR photography in one library available in the cloud?

I think I'm quite average when it comes to picture taking. Both me and my wife use our smartphones to take pictures and film video snippets of ourselves and our son. But I also use a SLR camera on ...
1
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2answers
157 views

What smartphone specs should I look at for fast RAW exposure bracketing?

I've narrowed my choice down to (CPU clock speed in parens): HTC One A9 (10.8GHz total) Samsung S6 (14.4GHz total) LG G4 (9.2GHz total) Huawei P9 (17.2GHz total) Huawei Nexus 6P (14.2GHz total) My ...
2
votes
1answer
497 views

Can I take clear night sky photographs with my smartphone?

is it possible to take clear night sky shots with stars/ planets visible from Redmi Note 4? what settings do I use? when I try to take it just comes black, unless on full moon day with HDR, though ...
28
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6answers
6k views

What could be the reason for these block-like artefacts in the blue sky?

I'm using the Huawei P10 with its Leica camera. Recently I noticed very visible large block-like artefacts in the sky. These artefacts are present on some pictures, but not on all, and they are ...
1
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1answer
432 views

How do smartphone cameras know they are in focus?

I just wanna begin by saying that I have no real knowledge of cameras, so this might be a stupid question. But how do smartphone cameras know they are in focus? I would assume that if you told a ...
0
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2answers
117 views

how to distinguish photos taken with different phones?

i'm trying to know how to distinguish same photos taken with different phones. i have 6 pictures from 6 different mobile phones. how can i understand which picture belong to which phone?
1
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2answers
411 views

Why a partial eclipse is apparent only as an artifact on a smartphone camera?

Both the front and back cameras of my phone did not "pick up" a partial eclipse, but it did appear as an artifact on the image. If I do not see a crescent on the sun itself, why the crescent shows up ...
0
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2answers
120 views

Better camera over the smartphone [duplicate]

I am not a professional photographer, but I travel a lot, and I want to be able to take better photos on the way. Currently Im using my smartphone - Samsung Galaxy S7 Edge. I want to buy a camera for ...
3
votes
1answer
152 views

Where can I find lens mounts for small 2 mm diameter lenses?

I need a lens mount for one of my projects. I have a CCD chip, a single lens (2 mm diameter), and I know the mechanical position and tolerances. I would like to find a lens mount for that lens or see ...
4
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4answers
3k views

Why my DSLR is not as sharp as my smart phone?

I recently bought a Nikon D5500 camera with two lenses: 18-140mm f/3.5-5.6G ED VR and 50mm f/1.8G. When I compare the results with my advance smart phone (Samsung Galaxy Note 5), the sharpness is not ...
12
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4answers
483 views

Continue taking photos from smartphone or buy a camera to practice?

I know this is a site with very good professional photographers and this might appear like a silly question but I'm just a beginner who loves photography. But I still don't have a camera so all I do ...
4
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2answers
2k views

Why the highest resolution on smartphones is obtained for 4:3 aspect ratio?

The max rectangle area that can be enclosed in a circle is actually a square. This means that ideally a 1:1 aspect-ratio sensor would be able to collect more information than any other aspect ratio ...
1
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2answers
87 views

Comparing cameras from older smartphones to cameras from recently released devices

Usually when new smartphones appear in close succession their cameras are well compared on tech sites or magazines, for example like here the S7 and the OnePlus3. But are there such tests which ...
6
votes
1answer
549 views

How to create a denoising profile for darktable

I tried to create a denoising profile for my Google Nexus-5 smartphone as described in a blog post. I shot some pictures, one per ISO setting (100,200,400,800,1600,3200) with OpenCamera which are ...
3
votes
3answers
577 views

How is a dual camera smartphone “12x zoom” when one is prime and the other has a 2.3x zoom?

In an article about a new (dual camera) smartphone the following is stated: Asus ZenFone 3 Zoom sports a dual rear camera setup, with one 12-megapixel rear camera with Sony IMX362 sensor, and f/1.7 ...
0
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1answer
668 views

Timelapse photography with Nikon D3200

Does anyone know if there exists an app that acts as an intervalometer for my Nikon D3200 because this DSLR does not have a timelapse feature?
1
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2answers
224 views

How do I capture light trails at night with a smartphone?

How can I capture light trails from passing cars and other moving lights with my smartphone? I am using an iPhone 6S. Here is an example of what I want to capture:
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5answers
807 views

How can I make sure a dark background comes out pure black with a smartphone?

I recently used a Samsung GT-I9506 to take photos of coins. The idea was to make use of "black" paper as a clean uniform background. I one of the photos the colour of the paper appears completely ...
1
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1answer
304 views

How can I make a DIY macro lens for a smartphone?

I'm a new photographer. I like macro photography so much, but I can't buy a DSLR right now. So I'm doing photography using my smart phone. I bought a macro lens for smart phones from eBay but its ...
0
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2answers
99 views

Are there any great replacement lenses for the Nexus 5?

I really like my Nexus 5 (Android Phone), and I use it to take a lot of pictures. Recently, it seems that there are couple of dust spots on the sensor, which leads to some black dots in live view and ...
11
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4answers
2k views

How to choose a good smartphone if the top priority of the user is photography?

At the current rate by which technology is improving, I believe that mobile photography is not far behind their DSLR counterparts, generally speaking. However, for amateurs like me, it is quite ...
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votes
3answers
3k views

What creates a bright green orb “lens flare” with silver or metalic dots on it?

I am having a heck of a time finding anything on the internet that explains how and why a green orb with silver or metallic looking dots keeps appearing in my photos of the sky. I am taking these ...