The Sekonic L-358 displays an f-stop range of f/1.0 to f/90.9, and a shutter speed range of 30-minutes to 1/8000th-of-a-second (1/1000th in Flash mode), both of which can be displayed in full-, half-, and third-stop intervals to mirror your camera's exposure display. When set to "full," the exposure is displayed in tenth-of-a-stop increments with repeat accuracy of +/- 0.1 EV.

For motion picture applications, the L-358 calculates cine readings from 2 to 360 frames-per-second. As with all Sekonic meters, the Sekonic L-358 Flash Master includes a 3-year warranty and the best customer support you're ever likely to find.

L-358 FlashMaster - 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:	Light receiving angle 54° (Lumigrid)
Light Receptor Element:	2-Silicon photo diodes (incident and reflected)

Measuring Range and Modes

Measuring Modes Ambient Light:	- Aperture priority metering - EV metering - Shutter priority metering
Measuring Modes Flash:	- Measurement using the optional 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-2 to EV 22.9 with 54° Lumigrid
Measuring Range (ISO 100) Flash:	- Incident Light f/1.0 to f/90.9 (approx. f/124) - Reflected Light f/1.0 to 90.9 (approx. f/124) with 54° Lumigrid
Repeatability Repeat Accuracy:	(+/-) 0.1 EV or less
Calibration Constant Incident:	Lumisphere C = 340, Flat Diffuser 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/1.0 to f/90.9 (in 1, 1/2, 1/3 steps)
Display Range EV:	EV -10.0 to EV 40.0 (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/1 to f/90 (in 1/2 steps)
Display Range Analog Scale Shutter Speed:	2 sec. to 1/4000 sec. (in 1/2 steps)

Other

Exposure Out Of Range:	Eu (underexposure) or Eo (overexposure)
Memory Function:	9 readings
Average Function:	Up to 9 readings can be averaged
Brightness Difference Function:	(+/-) EV (1/10 stop)
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:	DIP Switch Mode Selection
All Weather Feature:	JIS Standard Water Resistance Class 4, Splash Proof Type
Auto Power Off:	Yes, 20 minutes after last use
Battery Power Indicator Display:	Icon with 3 status
Second ISO Film Speed Setting:	ISO 3 to 8000
Battery(Power):	(1) 3V Battery, Model CR123A Lithium
Operating Temperature Range:	14° to 122° F / -10° to 50° C
Storage Temperature Range:	-4° to 140° F / -20° to 60° C

Radio Triggering Learn more about Radio Triggering

Radio Triggering Radio:	Complex 16/24 bit digitally coded w/ optional RT-32N Module
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 346.50MHz

Dimension and Weight

Product Dimensions:	6.10x2.30x1.50 in./6.00x15.00x4.00 cm
Product Weight:	0.40lbs./0.20kg.

Item Includes

L-358 Case, CR123A Battery, Strap, Synchro Terminal Cap and Lumigrid