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Sekonic L-308S Flashmate, Flash and Ambient, Incident & Reflected Exposure Meter

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Sekonic L-308S: Picture 1 regular $199.00

About Sekonic L-308S

Sekonic L-308S Flashmate
The pocket-sized Sekonic L-308S Flashmate is the smallest and lightest digital light meter in the Sekonic line-up. It is designed to read ambient or flash exposures in either reflected or incident modes, and it displays accurate exposure readings in full, half, or third-stop increments to mirror the exposure settings of today's DSLR and film cameras.

The Sekonic L-308S delivers accurate exposure readings in full-, half-, or third-stop increments to mirror the exposure displays of most popular cameras. When set to full-stop mode, exposures are displayed in tenth-stop increments with a repeat accuracy of +/- 0.1 EV.

The LCD screen is designed to emulate the look and feel of its bigger brother, the Sekonic L-358 flash meter. Exposure data and related information are displayed using large type and easy-to-read icons, perfectly legible in even low-level lighting conditions.

incident or reflected light measurement
Reflected light readings are captured at a receiving angle of about 40 degrees for subject readings made at the camera. Slide the L-308S's built-in Lumisphere over the silicon photo diode for incident light exposure readings of three-dimensional subjects. Snap on the included Lumidisc over the sensor for metering flat artwork or measuring contrast and/or exposure ratios within a scene.

Ambient / Flash measurement
Incident or reflected ambient light readings can be made with the L-308S over a wide range of lighting conditions at shutter speeds from 60 seconds to 1/8000th of a second and apertures from f/stops of f/1.4 to f/90.9. Flash at speeds from 1 to 1/500th of a second can be measured cordlessly or wired using a separate accessory PC cord. Flash and ambient readings are automatically calculated to display the proper exposure for the combination.

Accurate measurements
Exposures accurate down to a tenth-of-a-stop for both ambient and electronic flash light readings are available in full-stop mode. The L-308S can also display shutter speeds and apertures in half or third-stop increments to mirror the exposure settings on your camera with a repeat accuracy of +/- 0.1 EV. For cinema applications frame rates can be set from 8 to 128 frames per second. ISO sensitivity can be set from 3 to 8000 in third-stop increments.

Compact size and lightweight
The L-308S is the smallest digital flash meter for reflective and incident light readings in ambient or electronic flash lighting conditions. It is compact and light enough to fit into a shirt pocket, yet versatile enough to meet virtually every photographic demand. The L-308S is powered by a single AA battery and weighs only 3.4 ounces (95g). Its measurements are a compact 2.5"W x 4.3"H x 0.9"D (63mmW x 110mmH x 22mm )

The Sekonic L-308S FlashMate comes with a Lumidisc (with pouch), soft case, strap, synchro terminal cap and an AA battery. It has a full, 1-year warranty, extendable at no charge to 3 years total (in the USA only) after registration, and is backed by our outstanding customer support team.

The Sekonic L-308S is commonly used for Everyday, Film, Home, Photography, Photojournalism, Portraits, Studio, Travel and more.The Sekonic L-308S is most used by customers who consider themselves to be a Enthusiast, Photo enthusiast, Semi-professional, Semi-pro photographer among others.The Sekonic L-308S is popular because customers like the following qualities of the Sekonic L-308S: Accurate, Compact, Consistent, Durable, Easy to use, Lightweight and Strong construction

Sekonic L-308S Features

  • Full, 1/2 and 1/3 selectable f/stop increments
  • 1/10th of a stop increment displayed
  • Improved LCD display
  • Increased accuracy
  • Enhanced icons and symbols for better readability

Sekonic L-308S Specifications

Digital exposure meter for ambient and flash light
Receptor Head
Sliding Lumisphere with Lumidisc Adapter
Light Receiving Method
Incident light and reflected light
Receptor Incident Light
Built-In Lumisphere, Attachable Lumidisc (included)
Receptor Reflected Light
Lens with 40° Receiving Angle
Light Receptor Element
Silicone photo diode
Measuring Modes Ambient Light
EV metering
Shutter priority metering
Measuring Modes Flass
without synchro cord
With synchro cord
Measuring Range (ISO 100) Ambient Light
Incident light EV 0 to EV 19.9
Reflected light EV 0 to EV 19.9 (with 40° angle)
Measuring Range (ISO 100) Flash
Incident light f/1.4 to f/90.9 (approx. f/124)
Reflected light f/1.4 to f/90.9 (approx. f/124) with 40° Lumigrid
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 Film Speed
ISO 3 to 8000 (in 1/3 steps)
Display Range Shutter Speeds Ambient
60 sec to 1/8000 sec. (in 1, 1/2, 1/3 steps)
Display Range Shutter Speeds Flash
1 sec to 1/500 sec. (in 1/ 1/2, 1/3 steps) plus 1/75, 1/80, 1/90, 1/100 sec.
Display Range Aperture
f/0.5 to f/90.9 (in 1, 1/2, 1/3 steps)
Display Range EV
EV -5.0 to EV 26.0 (in 1/10 steps)
Display Cine Speeds fps
8, 12, 16, 18, 24, 25, 30, 32, 64, 128 (shutter angle: 180°)
Exposure Out Of Range
Eu (underexposure) or Eo (overexposure)
Auto Power Off
Yes, About 4 minutes after last usage
Battery Power Indicator Display
Icon with 3 status
(1) Type AA 1.5V Battery alkaline, manganese or lithium
4.30x2.50x0.90 in./10.90x6.40x2.30 cm
Mfr #

Sekonic L-308S Reviews Powered by TurnTo®

Review Snapshot®


(based on 40 reviews)


of respondents would recommend this to a friend.

Ratings Distribution

  • 5 Stars



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  • 1 Stars



Most Liked Positive Review


Great flash meter

Great light meter that works with strobes. Must have when you venture into off-camera strobe lighting. Critical for using the Manual mode of your camera. Also useful for low light situations when you want to double check your cameras internal light meter.


Most Liked Negative Review


Takes Non-Rechargable Batteries

I bought the light meter last week. When I started to read the instructions, it warned not to use rechargeable batteries; for instance the Ni-MH I have. A slight matter for some, but I really do not feel like carrying around yet another type of battery in my camera case. I will be inquiring about a return next week.

Reviewed by 40 customers


Takes Non-Rechargable Batteries


I bought the light meter last week. When I started to read the instructions, it warned not to use rechargeable batteries; for instance the Ni-MH I have. A slight matter for some, but I really do not feel like carrying around yet another type of battery in my camera case. I will be inquiring about a return next week.


Very nice tool


Nice little meter, vary basic in its abilities and it is based on shutter speed. I'm pretty new to using a light meter and this is the perfect one to start with. Functional, accurate and low cost compared to the big boys.

(1 of 1 customers found this review helpful)


All I need


The L-308S is a good basic flash/ambient meter. I've owned a previous similar model, as well as a high-end Sekonic, and have found them to generally be reliable, and probably as durable as can be expected for a light meter. I don't use a meter much anymore, and this one serves my needs perfectly.

(1 of 1 customers found this review helpful)


Very good product!


Helps with understanding the camera vs lighting relationship.

(2 of 2 customers found this review helpful)


nice meter


This is a fairly small but accurate meter. It tucks nicely in my bag, is quick and handy to whip out for a reading or two, and is simple to use. My only complaint is that it has a cheap plastic feel, where you get that creaky, slightly hollow plastic sort of feel when you hold it. But other than that, it's relatively inexpensive and it does what the more costly and larger units do, so I'm not complaining too much.

(1 of 1 customers found this review helpful)




I've actually owned two of these. I used it less with my Leica M6 TTL, but I now own an M2, which does not have its own light meter. I use it to measure every picture I take. It is an essential part of my kit, and the quality of this meter is why I didn't even bother looking at other ones when I needed a new one.

(1 of 1 customers found this review helpful)


Pleased with performance


This meter is quite easy to use and has worked well for my portraiture. The only difficulty I have encountered is that it is easy to accidentally change settings. Accuracy has been consistently right on.


easy to use


first light meter and wanted one that was simple. it took a about an hour to learn and set up for camera and works well. i do see abetter meter in the future but this one works well for travel.

(1 of 1 customers found this review helpful)


Very accurate meter


Very accurate and compact. Gives you perfect exposures in every mode


Great first meter


This is good first meter for portraits and some general landscapes. If you need more accurate readings for landscapes or have the abililty to sync with your studio lights then you need to step up to a more full function meter. But this meter works great for its size and functions.


Questions & Answers Powered by TurnTo®

Questions about this item:

Shopper  Match with Canon Cameras?
Robert B  This meter can be used with ANY camera, digital or film (or other) that has adjustable exposure controls. The same can be said of any light meter. Most Canon cameras, except for some basic point & shoot models, have manual exposure settings. The flash feature of this meter will also measure the flash, however, the auto features of the built in flash will do the same. This meter is particularly good when off camera flash not controlled by the camera auto-circuits is used (i.e. manual flash exposure) where the f-stop can be set manually, and the shutter brought down to the proper sync speed for flash (depends on camera). It can also be used for measuring lighting ratios, however, this may not be something you are doing at this point based on your question, but the meter will grow with your needs. When used properly, very precise and consistent exposures can be measured. Incident light measurements under appropriate lighting are very accurate, and far less influenced by subject reflectivity or non-averaging light level scenes (such as someone wearing a white dress in a bright background or in snow, where the camera reflected meter can be fooled into improper exposure).
Shopper  I need to find a download of the operating manual. Where should I look?
JAMES B  go to sekonic on products. click on the l-308s and you will see a tab that is for the downloading of the manuals and quickstart guide.
Shopper  I use aperture priority in my camera. How much of an issue is it to use this meter which only has shutter priority?
KAREN T  I also shoot in aperature priority most of the time, so I have to guess at the setting, meter the location I'm shooting and then adjust as necessary. It is not difficult really, and does not take much time. It is acurate and works well in conjunction with my camera.
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