Can I use my phone as a light meter?

You can get Lux Light Meter Free for your Android devices. It includes most of the same features and options as the iOS version..

Can I use my iPhone as a light meter?

The myLightMeter Pro app works on any iPad and iPhone. Designed by a photographer, this light meter app is focused on reliability and precision for both digital and film photography and videography.

Can I use a lux meter for photography?

Lux and footcandles are so not useful to photographers. What photographers want to know is the aperture and shutter speed to use at a given ISO for a light.

How do you use meter on iPhone?

Use the Measure app and your iPhone camera to measure nearby objects. iPhone automatically detects the dimensions of rectangular objects, or you can manually set the start and end points of a measurement. For best results, use Measure on well-defined objects located 0.5 to 3 meters (2 to 10 feet) from iPhone.

What is the 400 rule?

A common rule of thumb to figure out your maximum shutter speed for sharp stars at night is to divide 500 by your focal length. Sometimes it’s called the 600 Rule or the 400 Rule or several other numbers that can be used depending on your sensor size.

How do you use a light meter app for photography?

Tap the viewing screen in the center of the app to open your camera. Tap the area on the screen where you wish to meter, and then select Measure. The app will calculate the f-stop and shutter speed you should shoot at in order to achieve a proper exposure.

What is the 500 or 300 rule in photography?

Rule of 500 (or 300)

When taking an untracked photo of the night sky using a camera on a tripod, this rule tells you how long you can expose before the stars begin to trail. You take the number 500 and divide by the focal length of your lens.

What is the 500 rule?

The 500 Rule

It recommends that your shutter speed is equal to 500 ÷ Equivalent Focal Length. So, if your full-frame equivalent focal length is 20mm, the 500 rule would suggest that you use a shutter speed of 500 ÷ 20 = 25 seconds.

Can you shoot stars with a 50mm? Star stacking and separate foreground exposure. Shutter speeds should be limited to 10 seconds or less at 50mm on full frame, and as low as 3 seconds for very sharp pinpoint stars.

What is the Sunny 16 rule in photography?

The rule serves as a mnemonic for the camera settings obtained on a sunny day using the exposure value (EV) system. The basic rule is, “On a sunny day set aperture to f/16 and shutter speed to the [reciprocal of the] ISO film speed [or ISO setting] for a subject in direct sunlight.”

What ISO to use in daylight?

ISO camera settings for a sunny day.

This rule determines that your lens aperture should be set to f/16, with a shutter speed of 1/your selected ISO. According to this sunny day rule, if you’re using ISO 100, the shutter speed should be 1/100 and the aperture should be f/16.

What ISO should I use at night?

For most full-frame cameras, ISO 3200 or 6400 are great for night photography. For most crop-sensor cameras, ISO 1600-3200 are great if it’s a relatively new camera, or ISO 1600 if it’s a much older camera.

How many lumens do I need per square meter?

The basic formula is to multiply the square meterage of the room by the lux requirement. As an example, a 10 square meter living room that needs 100-200 lux would need 1,000-2,000 lumens. However, a 10 square meter kitchen at 300-400 lux would need 3,000-4,000 lumens.

Is ISO 400 too high?

Choosing a low ISO setting, say less than 400, is best when there’s a lot of light or when you have a tripod and the style of photograph you want to make allows you to use a long exposure.

What shutter speed should I use for 400 ISO film? At ISO 400, the shutter speed would be 1/400 (or its closest conservative setting of 1/500s) and so on. Generally speaking, if shooting in bright sunlight with a digital camera, it is best to choose the lowest native ISO setting on your camera which is normally ISO100 or ISO200 depending on camera model.

What happens if ISO is too high? If your ISO is too high, the image will be overexposed. The key here is to balance the ISO with the aperture. Use the base ISO value and use the shutter speed that provides the best exposure. This is more ideal when shooting with natural light, in well lit places or where there is plenty of sunshine.

Is lux and lumens the same?

Relationship between Lumens & Lux

One lux (1 lux) is defined as being equivalent to one lumen spread over an area of one square metre. To put it another way: A specification in lux tells you how many Lumens (total light output) you need given the measured area you are trying to illuminate.

Is 5000 lux the same as 5000 lumens?

Lux is a unit of light measurement where the area is also taken into account. 1 lux equals 1 Lumen/m2, in other words – light intensity in a specific area. Lux is used to measure the amount of light output in a given area. One lux is equal to one lumen per square meter.

How much lux do I need?

Recommended Light Levels by Space

ROOM TYPE	LIGHT LEVEL (FOOT CANDLES)	LIGHT LEVEL (LUX)
Bedroom – Dormitory	20-30 FC	200-300 lux
Cafeteria – Eating	20-30 FC	200-300 lux
Classroom – General	30-50 FC	300-500 lux
Conference Room	30-50 FC	300-500 lux

• Jun 7, 2018

Where should you place your light meter?

Which film camera has the best light meter?

1. Sekonic L-308X Flashmate. Best all-round light meter for most people.
2. Voigtlander VC Speed Meter II. This lightweight, dial-led meter mounts onto your hotshoe.
3. Sekonic L-398A Studio Deluxe III.
4. Gossen Digisix 2.
5. Sekonic L-208 Twin Mate.
6. Sekonic L-858D Speedmaster.
7. Lumu Power 2.
8. Gossen Digisky.

How do you convert lumens to lux?

1 lumen (lm) per square metre (m²) corresponds to 1 lux (lx). 1 lumen (lm) per square foot (ft²) corresponds to 10.764 lux (lx).

How can I measure distance on a photo?

After you open an image in Image Viewer, open the Distance tool by clicking Distance tool button in the Image Viewer toolbar or selecting Measure Distance from the Tools menu.. For more information about opening an image in Image Viewer, see Open Image Viewer App. Measure distance with a click-and-drag approach.

How accurate is phone Lux meter? The median deviation from the reference value measured by all the apps on the Android smartphones and on the Windows phones was on average 60% above the reference value. The median deviation of all values measured with all the different iphones was approx. 60% below the reference value.