Overview

The Lumu light meter for the iPhone does something your camera can't - 

The Lumu tells you how much light is falling on your subject, not just how much it's reflecting

Digital cameras work out the exposure by measuring the light reflected from your subject towards the camera. This works well enough most of the time, but it falls down when you've got a especially reflective subject, like a white wedding dress, or a non-reflective one like a black cat. That's one reason why all cameras have EV (exposure value) compensation controls, so that you can correct the exposure when it's not quite right.

But old-school photographers and cinematographers know there's another way – you measure the light falling on your subject instead, using a specially-designed translucent dome attachment with a hand-held meter. Taking these 'incident light' readings is more fiddly but measures the thing you really want to know – how much light is falling on your subject, not how much it's bouncing back.

You can now lock in an accurate exposure with the exceptionally portable Lumu Light Meter:  a simple module that connects directly to your iOS device via the 3.5mm headphone jack. This incident meter is compatible with iOS 7.0 and later and utilizes a digital silicone photodiode along with a hemispherical cardioid-type diffuser and black aluminum body to measure ambient light. It offers a wide measuring range of 0.15-250,000 lux, or EV -4 to 20 at ISO 100, and has a rated repeat accuracy of 0.1 EV. Additionally, it does all this with minimal power draw from your device. 

In order to optimize usage for your applications, there are three iOS apps available: Photo, Video, and Pinhole. The Photo app is designed for stills shooters offering a variety of controls, metering options, and settings, including a reflected light mode using the device's camera. Video users will be pleased by their own dedicated app which adds much needed motion parameters such as frame rate to the mix. And, the Pinhole app allows extreme long exposure photographers to work alongside a timer and accurate metering system. 

This meter is very convenient coming in at just 0.94 x 0.78" in size and it has 0.09" of free space between it and the device in order to remain bumper-proof. Also, it comes with a leather neck strap and storage pouch to ensure your investment is either by your side or safely put away.

Specifications 

In the Box

Lumu Light Meter for iOS Devices

Overview

The Sekonic Litemaster Pro L-478DR Light Meter is an incident and flash meter featuring a color touch screen interface. The touch screen-based navigation lends itself to a highly intuitive and efficient workflow, allowing you to quickly modify exposure settings and navigate menus. This meter is also highly versatile and capable of measuring flash, incident and reflected light for still, HD video, or cine applications.

The L-478DR can be customized or adapted to your own specifications; depending on the metering modes you use most often, you can hide certain modes to create a more streamlined menu system. Exposure constants include shutter speed, f/-number, ISO, shutter angle, and frame rate; and the exposure variable can be decided upon depending on the situation you are working in. Illuminance and luminance values can also be taken, which are measured in footcandles/lux or candela per square meter/foot-lamberts, respectively. For more fine-tuned results, you can create and input personal profiles, allowing the meter to display exposure settings in accordance with your specific camera's dynamic range and clipping points.

When working with wireless flash metering, the L-478DR has the ability to wirelessly control the power of your flashes via PocketWizard ControlTL technology. Pairing this technology within a light meter enables you to wirelessly adjust the power output from full to 1/64th power for either Nikon or Canon strobes that are mounted to a PocketWizard FlexTT5 transceiver (optional), or to certain studio strobe packs using PocketWizard ControlTL receivers. It will also trigger standard PocketWizards like the Plus or MultiMax series, or any strobe with built-in PocketWizard support. 20 standard channels and 3 CTL zones are available for use with strobes, and your wireless settings can be modified through the menu settings. Depending on the number of lights you are using, you can alter the output of each device from the meter and take a subsequent reading from the main screen. Once each flash group has been measured individually, you can determine your overall exposure settings and transfer those settings to your camera*.

Other settings available include the ability to memorize up to 10 different exposure readings in order to refer back for comparative overall measurements. The AVE/EV setting allows you to make one master exposure reading and have subsequent readings displayed as differential values based on the master exposure value. When working with flash metering, the flash exposure values can be expressed as a percentage of the flash-to-ambient light, giving you the ability to more easily alter and previsualize lighting ratios. Filter compensation and exposure compensation settings can also be applied in order to remove the necessity to apply different filter factors after a meter reading has been taken.

*Note: When using the L-478DR for wireless power control, the applicable PocketWizard units must be updated to the latest firmware. Furthermore, the Mini TT1 or Flex TT5 radio (optional) must be set to "No Change (Trigger Only)" mode. This will allow the L-478DR to function as the master controller, and ensure that your camera will not alter the power settings of the flash groups.

Specifications

Overview

The Sekonic Litemaster Pro L-478D Light Meter is an incident and flash meter featuring a color touch screen interface. The touch screen-based navigation lends itself to a highly intuitive and efficient workflow, allowing you to quickly modify exposure settings and navigate menus. This meter is also highly versatile and capable of measuring flash, incident and reflected light for still, HD video, or cine applications.

The L-478D can be customized or adapted to your own specifications; depending on the metering modes you use most often, you can hide certain modes to create a more streamlined menu system. Exposure constants include shutter speed, f/-number, ISO, shutter angle, and frame rate; and the exposure variable can be decided upon depending on the situation you are working in. Illuminance and luminance values can also be taken, which are measured in footcandles/lux or candela per square meter/foot-lamberts, respectively. For more fine-tuned results, you can create and input personal profiles, allowing the meter to display exposure settings in accordance with your specific camera's dynamic range and clipping points.

Other settings available include the ability to memorize up to 10 different exposure readings in order to refer back for comparative overall measurements. The AVE/EV setting allows you to make one master exposure reading and have subsequent readings displayed as differential values based on the master exposure value. When working with flash metering, the flash exposure values can be expressed as a percentage of the flash-to-ambient light, giving you the ability to more easily alter and previsualize lighting ratios. Filter compensation and exposure compensation settings can also be applied in order to remove the necessity to apply different filter factors after a meter reading has been taken.

Specifications 

Overview

Sekonic L-398A Studio Deluxe III Meter - The Sekonic L-398M "was" the classic analog incident ambient light meter. 

Sekonic has redesigned the popular Studio Deluxe II L-398M analog light meter to more current industry standards. The Studio Deluxe III L-398A retains all of the legendary features and benefits of its predecessor, the L-398M. Using an environmentally-friendly sensor made from selenium, Sekonic can continue to offer the popular L-398 battery-free. 

The L-398A offers both "Still" and "Cine" shooters the familiar features and repeatable accuracy expected from Sekonic. Educators and students won't be left without their favorite meter this year.

Specifications