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Sekonic 401-758 Light Meter (Black)

by Sekonic
51 customer reviews
| 10 answered questions

List Price: $634.00
Price: $597.49 & FREE Shipping. Details
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  • Exposures accurate down to a tenth-of-a-stop in full-stop mode for both ambient
  • Built-in 1-degree spot meter features an adjustable diopter (-2.5 to 1.0d), and is threaded for 30.5mm filters
  • Up to 9 readings can be stored for meter averaging and contrast evaluations in aperture and shutter priority modes.
  • For mixed lighting scenarios, the Sekonic L-758DR DigitalMaster displays the combined exposure values of both flash
24 new from $597.49 6 used from $500.00
$597.49 & FREE Shipping. Details Only 3 left in stock. Sold by Eagle Camera and Fulfilled by Amazon. Gift-wrap available.

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Technical Details

Product Description

Product Description

Spot & Incident Light Readings Under Flash and/or Ambient Lighting Conditions Calibrated to match the Sensitivity of Your Camera’s Imaging Sensor The Sekonic L-758DR DigitalMaster is simply the most dynamic light meter you will ever own. It can record incident or 1-degree spot-readings under ambient and/or strobe lighting down to a tenth-stop in accuracy, and it’s sealed against the nastiest of weather. With the included Sekonic RT-32 Radio Transmitter Module and you can wirelessly trigger PocketWizard-enabled flash systems within a 100’ range. But that’s not what makes the Sekonic L-758DR DigitalMaster different from any other meter you have owned. What moves the L-758DR DigitalMaster to the head of the class is that it is the only meter that can be calibrated to read light the way the sensor in your particular camerareads light. Like film, imaging sensors vary in light sensitivity levels from one batch to the next. Despite manufacturers best efforts, fluctuations of native ISO sensitivities of up to plus/minus half-a-stop can be detected across the uncut wafers as they come off the manufacturing line. Depending on which ‘slice of the pie’ is inside your camera, the specs listed in the camera manual may not hold true to the characteristics of the sensor in your particular camera. By running an easy calibration test using Sekonic’s L-758DR, a Sekonic Exposure Profile Target (optional) and the included Data Transfer Software (Mac & Windows), you can accurately profile the sensitivity characteristics of your camera’s sensor to determine the compensation value for its true native ISO, dynamic range and clipping points. After calculating the test data and establishing new exposure parameters, this data is uploaded from your computer via the included USB cable back to the meter where it is stored as camera profiles. Profiling data from up to 3 cameras can be stored in your meter for instant recall.

From the Manufacturer

 L-758DR DigitalMaster

What moves the L-758DR DigitalMaster to the head of the class? It's the only meter that can be calibrated to read light the way your particular camera system reads light.

Every camera system is unique. Optical, mechanical and imaging components all act on each other to produce slight differences in exposure and the dynamic range of the camera system. Sekonic helps you discover the differences in your camera system and use this information to control light, make better exposures and take better pictures than ever before.

By running an easy calibration test using Sekonic's L-758DR, one of Sekonic's Exposure Profile Targets (purchased separately) and the available DTS V3.0 Software (Mac & Windows), you can accurately profile the characteristics of your camera's imaging system to determine its true native ISO, dynamic range and clipping points.

After processing the test data and determining exposure parameters, the resulting data is uploaded from your computer via the included USB cable to the meter, where it is stored as camera profiles. Profiling data from up to three cameras can be stored in your meter for instant recall.

Knowing the dynamic range of your digital camera can help you get the best exposures possible. Using the Sekonic L-758DR Light Meter and Sekonic Exposure Target plus Free Data Transfer Software, you can profile your digital camera and lens combinations. The result is total exposure accuracy.

Reflected Light Spot Metering

The Sekonic L-758DR incorporates a precise 1-degree, reflected light spot meter. Reflected light metering tells you about the subject. Different from incident light metering that produces readings only for the middle of your camera's exposure range, reflected light metering can also show you where the edges are. The key to working with the L-758DR's spot meter is knowing the dynamic range of your camera. That is, the tonal range your camera is capable of recording. Program this into the L-758DR and you can easily know which details will be properly imaged and which will be over or under the range of your camera. Armed with this knowledge, you can make exposure decisions that take full advantage of your camera's imaging capabilities to produce pictures with greater tonality and clarity than you have

Incident Light Metering

Incident light readings are, in fact, the simplest and most direct way to determine exposure. And because incident meters measure the light that falls on your subject, they provide camera settings that render the image exactly the way it appears. Blacks are black. Grays are gray. Whites are white.  Retracting the Sekonic L-758's Lumisphere enables you to quickly judge the brightness of multiple light sources for fast, accurate adjustment of lighting ratios.

Digital Photography: Boundless Possibilities

Today's High Dynamic Range (HDR) processing enables breaking through the limits to produce results never seen before. Knowing your camera's capabilities and precise exposure readings with the L-758D will help you make right exposure settings and save you time in processing. The picture of this Mexican plaza and church was created shooting multiple images (below) and "merging" them in HDR processing to create the image on the right.

Entering Data

Download test images into computer. If shot in RAW, convert to TIFF or JPEG for computation. Enter ISO, incident, and reflected light shooting data. Then select and align images for processing and press OK to watch the Sekonic Data Transfer Software program graph the dynamic range of your DSLR camera. Save the data for transfer to the L-758DR.

Programming Meter

Switch OFF L-758DR. Connect it to the computer with USB cable and switch L-758DR ON. Select up to three camera profiles. Press transfer. Switch OFF L-758DR, disconnect, and switch ON to begin using.

Full information Spot Viewfinder

The 1-degree spot meter has a broad reading range from EV 1 to EV 24.4 for ambient light and measures flash down to an amazing f/2.0. Its large, bright viewfinder with diopter correction and full-information data display give you everything you need to make the right exposure decisions without having to take your eye from the eyepiece.

Memory Mode and Latitude Display

Up to nine readings can be memorized and displayed on the meter's analog display. Once programmed, the L-758DR's latitude display mirrors the dynamic range of your camera and is your guide to making exposure decisions that will get you the pictures you want.

Contrast Function

Use the L-758DR's contrast function to simplify measuring the brightness range of a scene. Spot meter a mid tone or take an incident-light reading and press the AVE/ΔV button to create a mid tone standard. Then press the measuring button to display the brightness difference between the standard and new reading. Knowing the dynamic range of your DSLR is vital to making the best use of this important feature.

Ambient Light Metering

Take shutter-priority or aperture-priority readings from 30 minutes up to 1/8000 second and f/0.5 to f/128 and display them in full, 1/2 or 1/3 stop increments. Exposure is displayed both digitally and on an analog scale for easy readout. Settings can be changed after reading with automatic calculation to maintain the proper exposure. The extended sensitivity range, EV -2 to 22.9 (Inc) and EV 1 to 24.4 (Ref) for ISO 100, enables taking measurements over a wide range of lighting conditions.

Flash Light Metering

Shutter-priority readings of flash light can be made with a synch cord or cordlessly at shutter speeds from 30 minutes to 1/1000. The L-758DR automatically resets after each reading in cordless mode, to enable fast adjustment of flash brightness.

Built-in Radio Flash Triggering

Simply press the measuring button to wirelessly trigger flash units up to 100 feet away. The built-in transmitter offers 32 digital coded channels and Quad-Triggering Zones and is compatible with PocketWizard radio triggering systems (except ControlTL), as well as the PocketWizard Wireless Freedom partners.

Flash Analyzing Function

The L-758DR is especially useful for on-location shooting to lighten shadows or reduce background detail. That's because it measures ambient and flash simultaneously and automatically indicates the percentage of flash in the total exposure. You can easily adjust the ambient flash mix by turning the Jog Wheel. The digital display indicates the camera settings and an analog display shows the relationship between ambient and flash and the total exposure.

Other Features:

Dual ISO
Enables instant adjustment or exposure readings for different ISO, filter factors, exposure factors, or exposure biasing.

Swivel Head
Turn to position incident dome properly while
maintaining full view of the data display.

Illuminated Data Panel
Comes on at levels below EV 6.

All-Weather Design
Dust-proof and splash-proof (JIS Standard Water Resistance Class 4).

Custom Functions
14 custom settings enable setting the display for full,
1/2 and 1/3 stop readout, adjust Latitude display, control
functions, select displayed exposure modes and more.

Technical Specifications:

Type: Digital exposure meter for ambient and flash light
Receptor Head: Rotating Domed Head 90° to the right, 180° to the left, Retractable for Contrast Reading
Light Receiving Method: Incident light and reflected light
Receptor Incident Light: Convertible to flat diffuser (Lumisphere in down position)
Receptor Reflected Light: 1° spot with display in finder
Light Receptor Element: 2-Silicon photo diodes (incident and reflected)
Reflected Metering Distance: 3.3' to infinity/1.0m to infinity

Measuring Range and Modes
Measuring Modes Ambient Light: - Aperture priority metering
- EV metering
- Shutter priority metering
Measuring Modes Flash: - Measurement using the included wireless flash radio triggering system (cumulative and non-cumulative)
- Without synchro cord (cumulative and non-cumulative)
- With synchro cord (cumulative and non-cumulative)
Measuring Range (ISO 100) Ambient Light: - Incident light: EV -2 to EV 22.9
- Reflected Light EV 1 to EV 24.4
Measuring Range (ISO 100) Flash: - Incident Light f/0.5 to f/161.2
- Reflected Light f/2.0 to f/161.2
Repeatability Repeat Accuracy: (+/-) 0.1 EV or less
Calibration Constant Incident: Lumisphere C = 340, Lumidisc C = 250
Calibration Constant Reflected: K = 12.5

Display Range and Modes
Display Range Film Speed: ISO 3 to 8000 (in 1/3 steps)
Display Range Shutter Speeds Ambient: 30 min to 1/8000 sec. (in 1, 1/2, 1/3 steps) plus 1/200, 1/400
Display Range Shutter Speeds Flash: 30 min to 1/1000 sec. (in 1, 1/2, 1/3 steps) plus 1/75, 1/80, 1/90, 1/100, 1/200, 1/400
Display Range Aperture: f/0.5 to f/161.2 (in 1, 1/2, 1/3 steps)
Display Range EV: EV -9.9 to EV 46.6 (in 1/10 steps)
Display Cine Speeds fps: 2, 3, 4, 6, 8, 12, 16, 18, 24, 25, 30, 32, 36, 40, 48, 50, 60, 64, 72, 96, 120, 128, 150, 200, 240, 256, 300, 360 (shutter angle: 180°)
Display Range Analog Scale Aperture: f/0.7 to f/90 (in 1, 1/3 steps)
Display Range Analog Scale EV: EV -7 to EV 7 (in 1/3 steps)

Exposure Out Of Range: Eu (underexposure) or Eo (overexposure)
Memory Function: 9 readings
Average Function: Up to 9 readings can be averaged
Flash Analyzing Function: 0 to 100% in 10% increments
Multiple Flash Function: Infinite number of flash readings (Only one digit is displayed when the cumulated number is ten or more)
Calibration Compensation: (+/-) 1.0 EV (in 1/10th steps)
Exposure Compensation: (+/-) 9.9 EV in 1/10 steps)
Custom Functions: 14
All Weather Feature: JIS Standard Water Resistance Class 4, Splash Proof Type
Auto Power Off: Yes, Selectable in Custom Functions
Battery Power Indicator Display: Icon with 3 status
Second ISO Film Speed Setting: ISO 3 to 8000 (in 1/3 steps)
Tripod Socket/Shoe Mount: 1/4" - 20 thread mount
Battery(Power): (1) 3V Battery, Model CR123A Lithium
Diopter Adjustment: -2.5 to 1.0D
Operating Temperature Range: 14? to 122? F / -10? to 50? C
Storage Temperature Range: -4? to 140? F / -20? to 60? C

Radio Triggering     
Radio Triggering Channels: 1 to 16 channels standard, 17 to 32 "Quad Triggering"
Radio Triggering Range: Up to 100 feet from transmitter to receiver
Radio Wave Frequency Europe: - CH1-CH16 433.62MHz
- CH17-CH32 434.22MHz
Radio Wave Frequency USA Canada: - CH1-CH16 344.00MHz
- CH17-CH32 346.50 - 354.00MHz

Dimension and Weight
Product Dimensions: 6.70x3.80x1.90 in./17.00x9.70x4.80 cm
Product Weight: 0.60lbs./0.30kg.

Item Includes:
L-758 Case, CR123A Lithium Battery, Strap, Lens cap, USB cable, Syncro terminal cap, Sticker for multi-key and CS Operations, Software in CD-ROM, Quick Guide and Operating Manual

Product Details

Sekonic Product Comparison [183kb PDF]| Sekonic Light Meter Brochure [1.97mb PDF]
  • Product Dimensions: 6.7 x 3.5 x 1.9 inches ; 2.1 pounds
  • Shipping Weight: 1.7 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B000L9M2LU
  • Item model number: 401-758
  • Batteries 1 Lithium Metal batteries required.
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (51 customer reviews)
  • Amazon Best Sellers Rank:
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.
  • Date first available at April 18, 2005

Customer Reviews

Most Helpful Customer Reviews

40 of 42 people found the following review helpful By Chris Huston on January 4, 2009
I really like this meter. It does everything I need and a bit more. I find it easy to use as it follows similar interface design as my DSLR's "press-this-and-spin-that" UI. The integrated pocket wizard, ability to meter light ratios and balance ambient light is fantastic. The use of this meter has improved my shots.

A previous reviewer said the interface was poor - I disagree. The interface is extremely simple for the basic functions you'll use all the time. Set the ISO, take a reading, change between reflected spot and incident, set the pocket wizard channel, set the exposure time for ambient, etc.

When using the more advanced features, it gets a little more complicated. For example, metering the highlights, the shadows and mid-tones and display them all at once, or meter the lighting ratio between lights. Perhaps it could be a little easier but I don't find it a hinderance.

In fact I didn't notice the complexity as it's no more complicated than most of the features on my Nikon D700. The Sekonic, happily, follows the same convention of rapid key combinations for instant access to features instead of slow menu driven interfaces. Yes the menus are easier to learn - but you'd pay that speed penalty every time you'd use it. Once you learn how to play the Sekonic's keys, the price is paid and you get the speed benefit every time you use it.

Now it would be slick if, like the pro DSLRs, they provided both a menu and a key. But I still wouldn't use the menu.
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18 of 20 people found the following review helpful By Bill Neugent on February 18, 2011
Verified Purchase
The main reason I got this is to get accurate light readings. After playing with the light meter for a while now. I can say this has been the best purchase I've made in a while. I get better exposures than I have ever had before.

A second benefit of this meter is the ability to profile your camera. This will tell you exactly what your camera is capable of capturing. The light meter uses this information to set clipping points for your camera. While shooting landscapes I only have to measure the sky then measure the ground, push the average button and it will tell me if the scene is out of the range of my camera. It makes HDR shooting a breeze.

I know I am not using the full potential of this meter. But it is always better to have and not need than to need and not have. Just bite the bullet and get this meter. If you can't afford it, then save up or donate blood, and get the meter.
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10 of 10 people found the following review helpful By James Kimber on July 8, 2011
Verified Purchase
This is as good as it gets, even without the profile target. If you shoot every day, all day, get the target--the time saver it provides in post can't be felt in a few photos, but after a few hundred--you'll notice.

If you don't shoot every day, LR is adequate enough. Then again, if you aren't shooting as your only means of survival, there's plenty of cheaper alternatives out there that get equally great results and keep you a few hundred extra dollars to boot.

The profile target that is offered for this meter is for a very specific convenience for a very specific population. If you don't need this convenience, you still have an amazing light meter that will improve your photos instantly.
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25 of 30 people found the following review helpful By lenonline on December 9, 2007
There are lots of times when the meter in your camera does a good job. For the rest of the time you need a meter. I used this for taking an evening shot of Christmas lights over a lake. Maybe I could of guessed the exposure, but the Sekonic meter made the process much less prone to errors. I got an excellent shot the first time. I have not used all the features yet, but the spot meter is excellent.
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11 of 12 people found the following review helpful By E. Neil on April 7, 2013
Verified Purchase
I love the concept behind having the ability to store custom profiles in the meter for your lenses. What I have noticed is the settings do not seem to stay, after about two weeks of shooting I noticed that all of my pictures on all my profiled lenses were all overexposed. I tried to recalibrate them and I continued to have overexposed pictures.

One major negative that I, along with many other people, have noticed is that once you load a custom profile you cannot delete it from your meter using the DTS (version 3.0). I cannot imagine why Sekonic did not add a feature to delete profiles from your meter using the DTS. The only way I was able to delete my custom profiles was to remove the battery while I had the meter turned on.

Another negative I have noted is the instructions are not very user friendly. I'm not sure who writes the instruction manuals, but I had to google stuff to actually figure out how to use the settings.
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9 of 10 people found the following review helpful By Carlos E. Guevara Aguilar on June 5, 2010
Verified Purchase
Good light meter, has plastic casing but it performs very well.

The spot meter + up to 9 readings for averaging is a must for outdoor photography.

I bought the profile target but I think it was just a one time use. I would recommend to buy the light meter and wait to see if you really need to profile your camera.
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91 of 126 people found the following review helpful By Harold W. Rife on December 28, 2007
Well, I opened my Christmas present and voila! Just what I wanted! The Sekonic L-758 DR! I take it out, caressing it gently, and start to read.....hhhuuuuummmmm. I requested this meter because of it's acclaimed ability to "profile" and store in the meter, up to 3 cameras. That is what I am talking about! I have the Nikon D100, D200, FM2, 8008s, Nikkormat get the picture. I wanted to be able to profile all my cameras and when going to use the meter, download the appropriate profiles. I have the meter and cameras and I am ready to go!......NOT! Guess after paying $500.00 for a meter, if I want to use it as desired, I have to buy the profile target! Yep, doesn't come with one! Kinda like buying a car and after the paper work is done, the salesman asks if you want wheels on it! Called Sekonic.....they don't sell it. Apparently the very item needed to use this meter as advertised is "third party?". And guess what the kicker is..........this little piece of printed matter costs another $100.00!!!!!!! SSssssoooooo.....guess if I want to keep and use the meter, I am going to have to shell out another $100.00! BUT!!!! If I do, I will make this profile target available to all who want to use it, all you do is pay the postage both ways! Heck, I may buy several! See if that puts a dent in someones pocket! I think I will go out now and kick my dog! Nah.....I like my dog. Guess I'll kick a tree ..... nope .... that would probably hurt!

Well....look forward to the product review....I will be analyzing this puppy down to the last tiny screw!!!!!

Best of wishes!
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Sekonic 401-758 Light Meter (Black)
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