This app can measure the exposure without influence of the reflectivity of subject.
The accuracy of measurements depends on the sensor of your phone.
This app can also calculate f-stop or shutter speed by using manually inputted illuminance or EV.
The following model is a model that CAN retrieve the value of illuminance sensor confirmed by the user's review.
Nexus S, Nexus One, REGZA Phone IS04,
HTC EVO,HTC WILDFIRE, Motorola Droid 2 Global,
Motorola DEFY, DROID X, DROID BIONIC,
Samsung Galaxy S2(SC-02C), Samsung Galaxy_Tab(SC-01C),
LYNX 3D SH-03C, Dell Streak, Garmin A50,
DELL Streak SoftBank 001DL, MEDIAS N-04C,SHARP IS03,
AQUOS PHONE SH-12C, AQUOS PHONE IS11SH,
iida INFOBAR A01,G'zOne(IS11CA),
Acer Liquid Metal, REGZA Phone T-01C
The following model is a model that CAN NOT retrieve the value of illuminance sensor confirmed by the user's review.
HTC Legend, HTC Desire, HTC EVO 3D, HTC hero,
Samsung Galaxy S, Samsung Galaxy S2(?),
Samsung Galaxy Ace, T-Mobile G2x,
Motorola Milestone, Motorola Milestone2,
Motorola CLIQ, Motorola ATRIX(Gingerbread Version),
Motorola DROID X(?), DROID 2(?), Xperia acro, Xperia Arc,
Xperia SO-01B, S51SE, myTouch slide, Optimuschat L-04C,
Sony Ericsson ST18i, SHARP IS01, LG P500, LG Optimus Dual
Please see instructions here!
(1) The application program is started.
(2) From the screen, tap the "START" button.
(3) Smartphone put in front of the subject.
(Please toward for the camera side where the illuminance sensor is used to take a picture. )
(4) Tap the "STOP" button.
(5) When the ISO sensitivity is set, tap the "ISO" button .
The ISO setting screen is displayed.
Please select the ISO sensitivity.
[For aperture priority]
To calculate the shutter speed, tap the "F" button.
A set screen of F value is displayed. Please select F value.
[For shutter speed priority]
To calculate F value, the "T" button is pushed.
A set screen of the shutter speed is displayed.
Please select the shutter speed.
(7) From the screen, get The ISO, F value and the shutter speed, and set in the camera.
･The illuminance sensor is installed on the liquid crystal screen side of the terminal.
･In the terminal that cannot use the illuminance sensor, the "INPUT" button is displayed instead of the "START" button.
Tap the "INPUT" button, the illuminance setting screen is displayed.
Please specify the illuminance corresponding to the situation.
The ISO, F value and the shutter speed are calculated by the specified illuminance.
･When click the menu key to the termina, the menu is displayed under the screen.
In "Setting" menu, it is possible to set it as follows.
Select light values:
Select useing sensor or manual input.
Input the correction value of the illuminance sensor.
Select same the steps as the camera used to take a picture.
･The light sensor may not get the terminal does not change the brightness and intensity.
In that case, please read after covering with the hand and darkening the sensor once and apply light.
･The light sensors may take some time to get light.
Download the trial first to see if the app works on your device, email me if you have any issues.
Can be used for any type of camera from film SLR to pinhole to cinematographic.
In addition to the two meters, the app includes a Sunny Sixteen calculator and a Depth of Field calculator.
The BEST Photographic Light Meter
This is an application for photographers to measure the amount of light.
It reproduces a handheld digital incident light meter and you can use to adjust your camera for a precise and ideal exposure.
You get a reading in f-stops or shutter speed and after you can change values with VOL +/- buttons.
It uses two different kinds of measurement: frontal light sensor(if present) or back phone's camera.
It works fine on Galaxy Nexus and Galaxy SIII
Attention!! not all phones have the frontal light sensor
Now with depth of field DOF and FLASH range calculator!!
This easy-to-use FLASH calculator allows you to input a variety of variables, for example guide number GN, so that via a simple calculation photographers can determine the max distance of your subject
Lux 0-200000 (depends on Phone)
cal. 2.3 Nexus, 1.5 SIII
LightMeter's reflected light meter only works with devices that are able to save exif data. Incident light meter should work on any device, but it is usually insufficient for real photographers.
Be advised that the precission and quality of this and all phone light meters is limited by the device itself. I recommend using the reflected light option, the precission can be really good.
-Incident light metering (needs light sensor)
-Reflected light metering (needs camera, only a few are compatible)
-Spot measure if camera has zoom.
-Support for all screens, including extra high resolution.
-Want more? get the noAds version, this one only gets bug fixes updates. And the noAds version gets real improvements like: Better performance than LightMeter Free, Camera sound can be muted. (not in all countries), Exif and sensor info on screen optionally, Incident light metering hold, Alternative ISO selector, State and ISO recall on resume, and much more as long as I keep getting downloads. Currently I'm getting support from 0.016% of the users. Thank you!
If you need help email me at email@example.com (Spanish and English)
App permissions: The app uses the standard permissions for an ad based app that uses the camera and light sensor. There is plenty of info about this on google search so you can check. AdMob is used.
Thanks for your support
Reflected light Compatibility list:
Acer: A100, A500
Alps: Lenovo A750, Micromax A110, N7000+, Spice Mi-500
Amoi: Amoi N808
Asus: Transformer Pad TF 300T, PadFone Transformer Prime TF201, TF101
Htc: One S, One X
Huawei: Media Pad
Lenovo: ThinkPad Tablet
Lge: LG-E970, LG-F100S, LG-F200K, LG-MS840, LG-P768, LG-P920h, LG-P930, LG-990, LG -999, LG-VM696, Optimus 2X, VS950 4G, Nexus 4
Motorola: A953, Droid, Droid Bionic, Droid Razr, Droid X2, Droid 2, Droid 2 Global, Droid 3, Droid X, ISW11M, MB525, MB526, MB855, MB860, Milestone, Milestone X, MotoA953, Xoom, XT910
Samsung: GT-I5510, GT-I5700, GT-8150, GT-I8160, GT-I8190, GT-I8530, GT-I9000, GT-I9000B, GT-I9001, GT-I9003, GT-I9070, GT-I9070P, GT-I9100G, GT-I9100, GT-I9100M, GT-I9100T, GT-I9300, GT-I9300T, GT-N7000, GT-N7100- GT-N7105, GT-N8000, GT-P1000, GT-P1000N, GT-P1010, GT-P6200, GT-P6800, GT-P7300, GT-P7500, GT-P7510, GT-S5360, GT-S5660, GT-S5830, GT-S5830D, GT-S5830i, GT-S5830M, GT-S5830T , GT-S5839i, GT-S7500L, GT-7510, GT-S5360, GT-S5560, GT-S5830, GT-S5830D, GT-S5830i, GT-S5830M, GT-S5830T, GT-S5839i, GT-S7500L, Nexus 10, Nexus S, Nexus S 4G, SGH-I317, SGH-I717, SGH-I727, SGH-I747, SGH-I777, SGH-I897, SGH-I997, SGH-T898, SC-02B, SC-03D, SC-05D, SCH-I400, SCH-405, SCH-I500, SCH-I510, SCH-I535, SCH-I605, SCH-I905, SCH-R720, SCH-R760, SCH-I317M, SCH-I717D, SCH-I727R, SCH-I747M, SCH-I897, SCH-T889, SCH-T959D, SCH-T959V, SCH-T959W, SCH-T989, SCH-T999, SHV-E110S, SHV-E120K, SHV-E120S, SHV-E150S, SHV-E160K, SHV-E160S, SHV-E210L, SHV-E210S, SHV-E250K, SHW-M110S, SHW-M180K, SHW-M250K, SHW-M250S, SHW-M440S, SPH-D700, SPH-D710, SPH-L300, SPH-L710, T959, YP-G1, YP-G70, Galaxy Nexus
Sharp: Infobar A01, IS17SH, SH-12C
Sony Ericsson: IS11S, LT15a, LT15i, LT18i, LT22i, LT26i, LT26w, LT28h, MK16a, MT11i, MT15a, MT15i, SK 17i, SO-02C, SO-03D, ST17i, ST18i, ST25i, ST27i, WT19a
Sony: MT27i, ST25i
ThL: ThL V9
Toshiba: AT100, AT300
Wiko: Starway (maybe others too)
◎The future will add more features
◎Easy to operate.
◎Simple measurement of exposure.
◎Can automatically detect ambient light, to get the correct exposure value.
◎Program open method to use professional light meter,precision high.
(Different phone may have a slight error)
How to use:
1.Phone placed on the need to measure the location of.
2.Try to adjust the phone facing the light source.
3.ISO plus or minus button to select the same with your 4.camera ISO setting.
5.Press the Start button can get an exposure value.
6.Use the up and down to select the desired combination of exposure.
Note: some models of the HTC and Sony and LG does not support
Measure your exposure anywhere, anytime. Then what will happen?
Now know the true brightness, the camera does the rest will not take pictures like.
Easy to use. Just press the button for the camera in front of the camera screen.
Push buttons are easy to reach out even in the larger, you can see that you press in the vibration.
I can now be intuitive combinations of exposure.
Your light meter terminal will be nominal sum.
What you forget to make a photo with life.
How to use
1. Point the camera towards the subject in front of the terminal screen.
2. Start the measurement by pressing the button on the bottom of the screen.
3. After you press the button to stop the measure numeric value is stable.
4. ISO, aperture, and reads the combination that suits the purpose to change the shutter speed.
In addition, the exposure step can be switched by pressing the menu button.
Ambient light sensor models are unlucky not work.
The free version will be set per-1EV.
This version will set correct aperture based on the ISO and Speed you select. You can use the software buttons or volume keys to change the speed and have aperture change with it. You can also set the volume keys act as a trigger to take a measurement.
Tactile feedback is provided on each button pushed, but can be turned off.
You can also calibrate the app to match the values coming from your meter.
Include Depth Of Field Calculator and creating Lighting Studio diagrams.
! WORKS ONLY WITH EXTERNAL CELL for the flash meter and light meter part !
! WORKS ONLY with an external cell, because phone sensor does not permit accuracy, and lightning flash, measures !
Depth of field and Lighting diagrams Creator functions works without this external Bluetooth module.
Measure in incident and reflected light.
Values displayed in EV, LUX, Foot candle, cd/m², foot lambert.
Speed of 1/8000s to 60s, F1 to F90 aperture, sensitivity from 25 to 819200 ISO.
Exposure compensation, usage of ND filters is possible.
- Range of incident light measurement (ISO 100): 0.5 to 1.9 million LUX 19.5 -3 EV.
- Range of reflected light measurement (ISO 100): 1-1000000 Cd / m², 3-20 EV.
- Range of incident light measurement (ISO 100): 100-2300000 LUX 5 to 20 EV.
- Range of reflected light measurement (ISO 100): 500-10000000 cd / m², 12 to 25 EV.
- Jack socket for flash sync.
- Automatic detection of lighting flash.
- Accumulates lighting.
Smartphones and tablets can not measure incident light and precision in reflected light, at best, is 1/3 EV.
They are not capable of measuring the lightning flash (bright event too short).
it is necessary to build an external module to measure correctly the light, for a cost less than 60 Euros (around 80 Dollards).
Bluetooth communication between the smartphone and the module.
For more details about its characteristics and build it, see this link:
This module is very accurate and can be take away with you anywhere, as it fits in your pocket, can bind
on the smartphone or tablet per the audio jack,
and you can even have it around your neck for shooting sessions.
The calculator function of depth of field integrated into the application is very useful and
avoids having to launch another application.
Ability to calculate the depth of field with standard lenses and macro lenses.
The function of creation of lighting diagrams (LSP = Lighting Studio Photo), can
permit easily save all settings of a photo shoot, to replicate it for other shooting.
It easily switches from flash meter / Light meter mode,to the LSP function.
- Reading the diagrams / schemes stored.
- Saving the diagrams on the SD card of your smartphone or tablet.
- Automatic backup fonctionality to exit the application and resume later the diagram.
- Many items available.
- Ability to change the position, size, orientation, the text of each object.
- Display a grid (none, large, medium, fine), backup image of diagram in JPG format.
Multilingual Application. For the moment: English, French and Spanish.
Other languages are possible, just email me the translation of all
words of the GUI in your language, for me to integrate.
The app includes three tools:
1.The calculator of the depth of field (further – the DoF-calculator).
2.The calculator of the exposure pairs.
3.The calculator of the sunsets time and the sunrises time.
Difference from full version:
1. You can not restrict the range of values in DoF
2. You can not restrict the range of values in Ev-Pairs
3. You can not search location on the map by address or coordinates.
The DoF-calculator will be helpful at the landscape shooting that needs the maximum depth of field. If you’ll choose the model of your camera and will set the aperture’s value, the focal distance and the distance of the focusing action, you’ll find distant both near limit of the sharpness and the hyperfocal distance. You’ll get the maximum depth of field in shot by focusing at this hyperfocal distance.
The calculator of the exposure pairs is being the special value at the shooting at night time when the built-in exposure meter is lacking for the calculation of the correct time of the exposition (built-in exposure meters can calculate exposure up to 30 seconds only).
Simple example: you wish to shoot the night landscape. The built-in exposure meter shows, that the exposure will be equal to 30 seconds at ISO = 1600 and the aperture = 5.6. But your camera has digital noise at ISO = 1600. If you’ll reduce the sensitivity to ISO = 400, exposure time will be 2 minutes and you’ll cover the aperture to 11, the exposure will increase up to 8 minutes. Photo Tools is created for the calculation of these parameters. The app is able to calculate the exposures up to 512 minutes.
The calculator of sunsets and sunrises allows to find out the time of their beginning. It gives this information about any place of our planet in any day.
It is recommended to have a look at the instruction before the using Photo Tools.
You’ll not find advertising in my applications, because they’ve developed for my own use.
Photo Tools is distributing under the license GPL v3. You can receive the source code of the program under the link: https://github.com/yankovskiy/PhotoTools
If you can help with translation into other languages, or you have ideas and offers, or you have found an error in program work, write e-mail to me, please: firstname.lastname@example.org
Rudy Dordonne (rework EV-pair kernel)
You just need put the light sensor on your phone towards the light source, and press the "Measue" button, we can caculate the Lux(Luminance), EV(Exposure value) and show you the exposure settings
The accuracy of measurement depends on the sensor of your device
The permission for Internet Access is for anonymous usage tracking, you can disable it in settings page
This is the trial version (60 days) of a paid app.
Email me if you have any issues or questions about usage.
Can be used for any type of camera from film SLR to pinhole to cinematographic.
In addition to the two meters, the app includes a Sunny Sixteen calculator and a Depth of Field calculator.
NOTE: This is a pre-release version. Some features don't work. Please test and give your feedback!
You have heard about ETTR, zone system of exposure and characteristic curves, and want to upgrade your knowledge in how to perfectly expose your footage? This app will upgrade your on-field exposure practice.
Measure the amount of light on your critical subjects in the shot (faces, sky, windows, dark shadows) with a lightmeter, and place all those spots on the characteristic curve for your camera (+ button). Then change the exposure parameters of your camera (EXPO button) so that your key spots are in the normal zone (green dots on the graph), or at least in the low contrast area (yellow dots). Avoid total noise or overexposure (red dots). Experiment with the exposure parameters to get the best result, modifying ISO, aperture f-number, shutter speed and ND filters.
SOON TO COME: ETTR feature.
1)Quick Mode ( with dropdown menus)
2)Manual Mode ( with edit boxes )
Also now supports Custom 1 and Custom 2, user editable custom settings for quick retrieval, ideal for multiple camera setup.
Has option to select teleconverters, automatically corrects focal length and apertures.
Quick Mode, lets user select most common settings using drop down menus for easy, quick and convenient selection.
Manual Mode lets user enter values manually for maximum flexibility and professional users.
Reverse Mode, takes Near Focus and Far Focus distance values and calculates all the possible combination of focal lengths and apertures to achieve the entered values.
Aperture Mode lets user select Camera, Focal length, and Subject Distance, and calculates resultant depth of field against all aperture values.
Supports more than 200 SLRs, DSLRs and Compact Cameras from Canon, Nikon, FujiFilm, Kodak, Olympus, Panasonic, Pentax, Samsung, Sigma, Sony, Four Third System, 35mm Film, Medium Formats, Large Formats, Blackmagic Cinema, Red, Super 16, Super 35, and many more
Last used settings are automatically saved.
SHORT CLICK on text to change its unit (meters, cm, feet, inches, etc)
LONG CLICK on C1 C2 to edit saved values.
This app contains Ads.
Download DOF Calculator Pro for Ads Free and Permissions Free version.
The usage is as follows .
1 . Launch the app
2 . Set
3 . And keep in bedside by the power supply in the charging cable
4 . Operation Start the app !
Once the application is determined to have become REM sleep , it will cause hit by vibration .
Hopefully, I think is not to wake the eyes in sleep paralysis state ?
※ It is not possible to guarantee that they become paralyzed 100 percent .
This app will help such imagination.
'Chat Cat' , which is designed as matching app , will eliminate your loneliness by notification from the cat !
In 'chat cat', I can , such as the following .
-Messages sent to the cat ( Are you what not listening ..)
-Gift to the cat ( Is it what not have received ... )
In addition , from the cat has such notes .
Message received from cat
Message you will receive from the cat ! After getting the message less from cat , please launching the app !
-Gift from cat
Cats whimsically , might bring me something . . .
- speak the human speech, once ( perhaps )
Cat life at a time , only just once , seems to speak of the human language .
But only once in this app , the message you will receive comes from the cat in the human words .
Since , however occurrence condition is rare , it might become unsubscribed before you speak . .
In addition, please understand the following .
* It does not meet the cats and people .
* cats and people do not have to send a message .
* There is no message communication to connect to the Internet . ( All it has been completed in within the app ) .
This is a fortune app.
Fortune will be notified and shake the smartphone .
You will be able to predict the fortune of today from the notification !
When you install this app, you will not leave only lucky good results!
As your day is, there better !
In this app you will be able to predict the next thing .
By downloading, copying, installing or using the software you agree to this license.
If you do not agree to this license, do not download, install,
copy or use the software.
For Open Source Computer Vision Library
(3-clause BSD License)
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the names of the copyright holders nor the names of the contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
This software is provided by the copyright holders and contributors "as is" and
any express or implied warranties, including, but not limited to, the implied
warranties of merchantability and fitness for a particular purpose are disclaimed.
In no event shall copyright holders or contributors be liable for any direct,
indirect, incidental, special, exemplary, or consequential damages
(including, but not limited to, procurement of substitute goods or services;
loss of use, data, or profits; or business interruption) however caused
and on any theory of liability, whether in contract, strict liability,
or tort (including negligence or otherwise) arising in any way out of
the use of this software, even if advised of the possibility of such damage.
・OpenCV Managerというアプリを別途インストールして頂きます。OpenCV Managerはアプリのダウンロードサイズを小さくする役割を持つナイスなアプリですのでご理解ください。