1 Introduction 1.1 General information The Lime One is designed in a way that most experi- enced photographers probably only need to check out the quick guide. Additionally, this manual contains a detailed description of all the functionality and oper- ation of the Lime One light meter.
1.2 Basic control Step by step first use: The basic operation of the light meter with the default settings (aperture priority mode) is as follows: Attach the light meter to your camera via the accessory shoe. Power the meter on by pressing the push button Double press the button and use the wheel to go...
When wanting to lock in the reading after framing us- ing the eye piece, holding down the button locks in the reading until button release. The meter shuts off automatically after 40 seconds of not having an input. 1.3 Menu The menu is entered and exited by pressing button two times in short succession.
1.5 Battery The Lime One is designed to work with a CR 2032 coin cell. Similar coin cells like the CR2025 could also work, as long as they output 3V and have the 20mm diame- ter, though because of their thinner size, they have a shorter battery life.
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the following behaviour is expected: • Depending on the individual coin cell, it can go pretty fast from 100% to 90% • Using it very heavily during a single day, it may show a lower estimate at the end of the day and recovers the next day •...
1.6 Mounting/adapters Please note when using the optional adapters: When storing the adapters for a longer period of time (more than a couple of days): remove any devices attached to the adapter and remove it from the camera. Since plastic can creep, leaving it stressed may decrease the clamping force of the integrated spring elements! This is especially important if there exists a tight fit! The light meter can be mounted on any accessory shoe...
2 Exposure modes For displaying and calculating the exposure parame- ters, there are four modes available: • A (aperture priority, default): You choose the aperture f-number, the light meter then calcu- lates the appropriate shutter speed. • S (shutter priority): You set the shutter speed which defines the motion blur and the light me- ter calculates the aperture f-number.
when and how to use this feature. For a neutral ex- posure, make sure to set it to 0. On the display it is displayed as "ev" and as a bar graph on the bottom. 2.1 aperture priority This mode is probably the most popular mode. By choos- ing a small aperture (big f number e.g.
the shallow depth of field to isolate subjects, by blur- ring out the background. 2.2 shutter priority With shutter priority, you set the desired shutter speed and let the light meter calculate the corresponding f- number to set on the aperture. This is helpful when shooting sports or fast moving subjects, since a man- ually selected fast shutter speed reduces the motion blur in the picture.
settings is displayed on the scale usually used for dis- playing the exposure compensation. Displaying the current over- or underexposure in real time makes it easy to “scope out” a scene. This way it is easier to judge which areas will be over or underex- posed.
3 Setup 3.1 Inverted mode In the Setup screen there are multiple combinations for operating the light meter with two additional set- tings: inverted and low resolution mode. In normal mode without any additional settings, the light meter is continuously reading and calculating the exposure values.
3.2 Low resolution mode Low resolution mode allows faster operation, when stop accuracy isn’t needed. Most cameras only allow the changing of the exposure settings in one stop in- crements, so it can be useful to have settings change and displayed in one stop increments. Instead of 3 clicks of movement on the control wheel to change one stop, you now only need one.
4.2 Calibration The light meter is calibrated to ± of a stop when manufactured. When going to the menu in the cali- bration screen “CALIB”, the current calibration offset (most likely 0.0) is displayed. 4.3 User calibration User Calibration using a reference camera: Any camera that has working metering, be it digital or analog, can be used as a reference for the light meter.
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or center weighted average. It is important, to set the camera ISO setting the same as the light meter ISO setting. When using a digital camera, make sure not to use auto-ISO. When using a 'newer' 35mm film camera, a film canister with DX code (black/silver checker board pattern on the film canister) may be needed to be loaded in the camera.
5 General exposure advice While the light meter will measure and calculate the most “neutral” parameters to set, the photographer still has to interpret these measurements and calculations. There is probably an infinite amount of information and advice on that topic, but as a start the following topics should at least cover the basics.
5.1 Exposure compensation The Lime One offers exposure compensation settings. While most of the time it is not needed, here are some examples for why you would want to change that set-...
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Challenging lighting Since the light meter takes an average across the frame, having bright elements in the background results in an underexposed foreground. Examples indoors: unshaded light bulbs, a bright win- dow, uneven lighting. Examples outdoors: Snow, a bright sky, the sun. In these scenarios overexpose by one or two stops (ev: +1.0...+2.0).
1/3 stop (optionally 1 stop) dynamic range * -3 ... 20 EV *: Below 0 EV: lower resolution, more noisy signal This device conforms to European (CE), US (FCC) and Canadian (IC) EMC directives. See hedeco.de for con- formity delcarations.
7 Service/Cleaning 7.1 Cleaning With normal use the light meter should not need any servicing. If parts require cleaning, use only solvent free cleaning solutions. When this is not sufficient, using a Q-tip soaked with isopropanol alcohol is also fine. 7.2 Dismantling If there is any reason to dismantle the light meter, please use a Phillips PH00 screwdriver.
7.3 Problems Please check the website hedeco.de for the latest up- dated version of this manual. If there are calibration issues, take note of section 4.3 to undertake user calibration. Please check if the cam- era you are using the meter with is working correctly (slow clockwork? sticky aperture? etc.).
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