Editorial Review:Product Description:The Sekonic L-358 Flash Master is an advanced, yet easy to operate, exposure analyzing light meter, that incorporates the latest technology in handheld meters. The L-358 features a retractable incident Lumisphere for standard or cosine corrected light readings, provides both hemispherical and narrow angle readings. Measurements can be taken in either incident or flash metering modes with accurate and convenient flash and ambient analyzing. In all electronic flash measurements, an analyzing feature simultaneously evaluates both flash and ambient light and displays the values in three ways: a) combined readings of flash and ambient, b) percentage of flash in the total exposure or c) simultaneous display of flash, ambient and combined readings on the analog scale. An easy-to-read illuminated LCD panel directly displays full, 1/2 or 1/3-stop shutter speeds or apertures and exposure/calibration compensation.
Selecting settings is quick and easy with the built-in Jog wheel and cine shutter speeds up to 360 frames per second makes the L-358 a versatile tool in the most demanding lighting scenario. Optional spot finders extend the versatility of the meter with a choice of 1, 5 or 10 degree measuring angles with a viewable parallax-free viewfinder.
Analyzing Function - A simultaneous reading of flash and ambient light is analyzed. The readings are displayed in three different ways on the LCD:
1. Combined readings of flash and ambient
2. Percentage of flash in the total exposure
3. Simultaneous display of flash, ambient and combined readings on the analog display
Retractable Lumisphere - A built-in adjustable incident dome (Lumisphere) provides full measuring in the standard position or when retracted, provides cosine corrected light readings for individual light source measurements or flat artwork.
Memory Mode - 9 memory banks are available in both Aperture Priority and Shutter Priority Modes, making contrast evaluation and a
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Customer Reviews
Average Rating:
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Worthless
my experience with this produce is that i can't trust it. it's almost always a stop or more off. if it says F8, i shoot at F7.1. in outdoor settings, using studio strobes, it's been a complete joke. no where near close to accurate readings for the strobe. which is why this review is titled "worthless". a waste of money...for me anyway. if you use with Canon speedlights, especially more than one, it's worthless as well as it will read the pre-flash not the actual flash readings.
Rating: 
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Light Meter
Excellent meter. Should be for a professional photographer and not recommended for the person that is not a dedicated 24/7 shooter
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Sekonic L-358 Light Meter
I use this meter in digital photography to get a better light reading. I use the Canon 40d and Olympus E-1 both camera has a real good light meter.
The Sekonic L-358 gives me the correct reading. Easy to use and with a small lerning curve. I don't know how I lived without it. When I take light reading in a dim area then I know if need the tripod or just change the ISO setting to a higher setting. Read the manual and start shooting better pictures
Rating: 
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Perfect for it's use
I'm using for a month in studio and outdoor and it's a great product. Consistent readings, well built, easy to use although has many advanced features... Indispensable tool for studio and hard lightning conditions.
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Excellent Lightmeter - Great Value Too!
I purchased this light meter when I got a chance to use a film medium format camera for awhile. It has every feature that I could like and was so good at exposure measurements that I started using it on my Canon 30D digital when the time for the shot permitted.
At first when I purchased it I thought it was so 'old school' to have a lightmeter, but I knew I was going to have it to use the medium format film camera I had and I wanted to go with strobes eventually so I was going to need it as well for the best results. I was quite surprised to find out how much of a difference it makes on digital and it pointed out how even a good digital camera can only do so good of an exposure prediction because of color and reflection assumptions it has to make.
If you've got to get exposure right on, then get a good light meter. The L-358 is a great light meter for the money.