Spot Metering

The Questions
We would recommend using spot metering for a more accurate exposure!
What is Spot Metering?
Why Spot Meter a subject?
So how do I do that?
How can I work out the -6 stops of light?

As per our normal GCM style, we will keep things as simple and as affordable as possible.
If you don’t have a separate spot meter then you should use the one in your camera. With the filter in place you can take a reading. However, the camera may struggle!
Spot Metering means what it says, meaning the camera is set to read the light values from a small area to calculate the meter reading.
If there is a large variation in the light values across a scene, the camera meter can get confused to how to set the shutter and aperture if using Matrix or Evalutive metering, hence reading from a small user selected area (Spot Metering) reduces the issue of inacurate light readings.
To save any incorrect readings from your camera, you should take a meter reading without the filter in place, with the lens that you will be shooting the image with. Then take a spot meter reading with the spot meter.
You then need to apply this meter reading to the camera body. The easiest way to do this is to use the fully manual mode, setting the shutter speed and aperture you are going to use.
Next place the ND filter into the camera body as per the instructions provided.
We have done this in the car and outside. However, if you are going to do this outside, we would recommend putting the camera, filter and lens together in a clean plastic carrier bag. If you don’t have one, you can purchase one for 5p from most supermarkets!!! This should help to stop any dust or dirt getting into the camera body or onto the filter. This may sound complicated, so try a few runs indoors first. Like most things the more you do it, the easier it becomes.
There is very easy method if you have a smart phone, whether an iPhone or an Android. You need to log on to the LEE Filters website.
Select “Camera”. Select “The Stopper Range” tab. Scroll down to the LEE Stopper App – Exposure Guide and Timer. Download it to your phone. Open the App – it defaults to Big Stopper (10 stops). Select “6 Stops” to go to the “Little Stopper” setting to calculate the correct exposure. Transfer this to your camera body. You will need to adjust your shutter speed down as per the Little Stopper guidelines.
A tripod is recommended, plus either using a self-timer or a cable release of some kind.
The App is free at the time of writing this blog. We hope this information proves useful to you.

 

 

 

 

 

 

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