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.

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What is the guide number of a smartphone "flash"?

I know that smartphones have a LED "flash" which is not really a real flash that would produce a very intense short-lived pulse of light, but rather is a continuous light that is turned on ...
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Can I use my Samsung A51 smartphone camera to look at the red/near-infrared region?

I have two regions of interest: red (~665nm) and near-infrared / far-red (~720-750nm). (possibly more but I'd like to see what is possible first) The ratio of the absorbance values for red/far red is ...
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Is it possible to get a camera that has nearly the exact same camera quality (software and hardware) as a specific phone?

Recently I've been meaning to get a camera that looks, feels, and takes pictures nearly identical to the Apple iPhone 8+. I mainly try to take sunset and sunrise photos, but I also take some general ...
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4 answers
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using smartphone on copy stand

A bit of math: what should the DIY copy stand height, to focus the smartphone camera on the flat A5-size object, that the object is photographed at 1:1 magnification? Smartphone camera - in the ...
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How can I automatically add location from GPS log on my smartphone to SLR taken images?

What software is best for adding gps data to photos from gps log i run on my android device? I want to do as little manual labor as possible preferrably software does it all for me. Look at photo ...
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How many megapixels to get readable pictures of descriptions/prices labels?

I have a Xiaomi Mi A2 Lite with 2 cameras on the back: 12 MP (PDAF) Aperture size: F2.2; Pixel size: 1.25 μm 5 MP (Depth information) Aperture size: F2.2; Pixel size: 1.12 μm Most of the time I use ...
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6 answers
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Do smartphones suffer from degrees of chromatic aberration? If so, how is it possible?

Smartphone imaging sensors are usually Bayer sensors which have a color filter array on top of each pixel, so each pixel ultimately captures one of red, green or blue colors of light. In that case, ...
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LG phone camera. How to interpret this EXIF User Comment metadata? "0 FM0 CR0 Prmid2 mxDrkA..."

What do the following numbers and abbreviations mean? Photos taken with LG phone cameras tend to have information like this in the "User Comment" metadata: 0 FM0 CR0 Prmid2 mxDrkA2.07 ...
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1 vote
3 answers
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How to process photos of night sky taken from smartphone

I'm from Karachi, Pakistan. I'm very much interested in astrophotography but currently, being not much able to afford high level equipment, I try to work on my smartphone and learn from basic YouTube ...
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How come my DSLR takes worse low-light photos than my phone, both in RAW w/ comparable settings?

I'm shooting in RAW, manual, on both my DLSR (Nikon D90) and my smartphone (iPhone Xs, Moment Pro camera app) and I've noticed significantly poorer low-light performance on my DSLR, with additional ...
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Are smartphone raw photos worth the effort?

I have several high quality presets. Some of them I have bought, some I have created. Once I apply them to raw outputs from my Canon or Panasonic cameras, the results are (after light tweaking) ...
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How can I infer parameters such as distance from metadata?

Is it possible and how can I infer a parameter like the distance or the illumination from the chart, by looking at the metadata of the picture ? To give some context, I am working on a chart with ...
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3 votes
1 answer
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Using MTF, how can I discover the smallest detail a smartphone camera can resolve for use in generating QR codes?

Given a chart I created myself, resembling e-sfr charts, a smartphone and a MTF plot, how could I discover the smallest resolvable detail, dimension wise ? The problem with smartphones is that we don'...
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Why are most smartphone cameras poor at capturing photos during the nighttime compared to DSLR cameras?

Phone cameras have come a long way since the 2000s in terms of megapixels however one glaringly obvious way in which they fail is their ability to capture photos in low-light conditions. I have a ...
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5 votes
1 answer
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What is the Godox SHOOT setting for?

I was going through my Godox transmitter settings, and there's this cryptic one called SHOOT: What do those three settings mean? And when would I want to use them? The Godox user manual isn't very ...
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I want to photograph in low light settings and make 11x15 enlargements, current smartphone not adequate

I have $350 US dollars to spend and was looking at new smartphones with top criteria being picture quality (have newborn, need pics). However, I read even sub $200 cameras have better performance than ...
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1 answer
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How to select a cell phone (mobile phone) that will have the best camera hardware and software?

Shortly before the COVID-19 pandemic began, I had the opportunity to attend a few art gallery openings that featured photography. What surprised me was that some of the photographs were taken using ...
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3 votes
2 answers
190 views

Smartphone shutter speed

My impression is that a smartphone has no physical shutter. Rather, it admits light to the sensor's photo-sites under the control of some on-and-off, or perhaps read-twice-and-subtract, electronic ...
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5 votes
2 answers
391 views

Circular Pattern in Night Sky Image

A few days ago I took a night sky image of the milky way with my XPERIA 1 II and wanted to take a closer look at the RAW file in Lightroom Mobile. When doing so, I realised a strange circular pattern. ...
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How to properly polish phone camera plastic cover?

I have never had any experience with polishing. I thought dremel and polishing accessories would solve the problem, but apparently they did not. I tried to polish the mobile phone camera cover with ...
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3 answers
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Smartphone or camera [closed]

I have the following problem: I may buy top smartphone for 1000 eur or smartphone+some camera. Smartphone aside photos is used for whatsapp mainly. So my question is: is it possible to find camera for ...
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Is it possible to capture milky way on Phones like PoCO F1?

I have seen multiple photographer to claim they captured milky way photograph using phone but to me it looks like overlayed using Photoshop, is it really possible to capture using phones like poco f1? ...
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2 answers
349 views

Difference between photo mode vs video mode on iPhone

I take 2 images with the same position. Photo mode: Video mode with the flash is on: Why the image that I get from the video frame is more narrow and not blur than photo mode? And can I take the ...
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How can I achieve 1:1 ratio for macro on my phone with 12 MP camera?

I have been using two lenses of 15× from different brands, to obtain a 30× magnification , but Still for smaller insects I am unable to capture all the details in macro. Is it possible to achieve 1:1 ...
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8 votes
1 answer
1k views

How to estimate pixels per degree for an image from a camera phone using EXIF data?

This is my first time to look at metadata and I'm confused by the focal length stated in this file that a friend e-mailed to me. It was taken with a cell phone. I'm trying to roughly estimate the ...
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white is gray in some areas?

I'm taking tshirt pictures with my phone, but even with 2 softboxes, the plain white shirt is a darker gray in some area. Do I only do it in a dark room with no light coming in or is it because the ...
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0 votes
1 answer
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What's this problem with light in my photos called? [duplicate]

I take photos with my phone (a Galaxy S9) frequently and this problem seems to plague me every time I try taking photos indoors near a window during daytime. The light from the window which is above ...
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1 answer
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Capture Scratches on LCD Screens

I am trying to take pictures with a smartphone camera of scratches which may/may not exist on another powered off smart phone. Is there a way to do this without changing the angle of the camera?
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1 vote
4 answers
951 views

Milky Way with a cell phone, how is this possible?

The 9to5Google article Exclusive: Official Pixel 4 camera samples show astrophotography, selfies, more [Gallery] shows some surprisingly nice (at least to me) photos of the Milky Way. Every phone ...
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1 answer
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Why does this smartphone picture show a "disconnected" body?

This picture was taken at the beach around 11 am in the morning , using Samsung J4 plus with its natural camera
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3 answers
366 views

Why is view on camera different from actual output viewed on phone?

I have a Nikon D5600. When I use telephoto lens (70-300 mm) for bird photography, on full zoom the bird does appear clear and near, but when the actual photo is produced, the bird appears far. When ...
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Is it just me, or do smartphone cameras not have any chromatic aberations at all?

To this day I have failed to spot any color artifacts in smartphone photos. Either Nokia N8 phone on a camera or my old Vibe P1 Turbo and even the G7102 I have (Which has glare towards the edges) Is ...
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16 votes
13 answers
7k views

How important is a good quality camera for good photography? [closed]

Don't know if this is already a known thing/wiki/previously asked here, but basically: How important is a good camera for actually making strides in photography/doing well? I've done some photography ...
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1 vote
2 answers
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Is it theoretically possible to use a mirrorless lens for a smartphone camera?

A example situation. I want to take photo of a far away text for identification but my camera has a dead battery! If I decide to use my phone (Just another 1/2.55 smartphone) and a RF (Or a EF-S) ...
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5 answers
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Entry level camera vs phone camera?

I would like to start my photographic journey, just don't know which camera to buy for beginners. I was looking at Canon Canon PowerShot SX540 HS, but I wonder how much of an upgrade is it on ...
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16 votes
8 answers
9k views

Can an old DSLR be upgraded to match modern smartphone image quality

I love photography, however, I had a 5 years break. I am on budget. I got my old canon eos 500d (standard lens kit) and was impressed how badly it compares with modern smartphones. I wanted to get a ...
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4 votes
2 answers
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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 ...
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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 ...
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2 votes
2 answers
899 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 ...
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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 ...
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1 answer
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Although I choose to auto-connect, Android Smartphone keeps refusing DSLR's wifi, as no internet found

The first time connecting my smartphone to DSLR's wifi, 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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2 votes
5 answers
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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 ...
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0 votes
2 answers
441 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 ...
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2 votes
3 answers
2k 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 ...
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3 votes
1 answer
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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 ...
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1 answer
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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 ...
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2 votes
1 answer
166 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 ...
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2 votes
3 answers
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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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1 answer
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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 ...
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5 votes
1 answer
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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 ...
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