The Filmomat Photoplug - a portable optical shutter speed tester

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£30.00
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The PhotoPlug is a small light sensitive sensor which plugs into the headphone-jack of your smartphone*

Together with the Shutter-Speed App (available FREE on the iOS and Android AppStore) it transforms your smartphone into an optical shutter speed tester for analogue cameras.

Compact - and therefore portable - this is an invaluable tool for quickly assessing how well your cameras are firing. You can also carry with you to charity shops/car boot sales so you can make an 'in-field' assessment before purchasing.

*If your phone doesn't have a jack then you can use the official USB-to-jack adapters from Apple, Samsung or similar. Please note that cheap adapters (i.e. that don't transmit microphone input) will not work with the Photoplug

 

Download the free App

Download the Apple app: here

Download the Google app: here

 

How does it work?

Once you have plugged the photoplug into your smartphone and taken a measurement, the App will display the measured shutter speed of your camera. It will also calculate a deviation value in f-stops.

Example in the picture below: You selected 1/125sec on your camera. Your measurement tells you it is actually 1/80sec. This results in an overexposure of 2/3 f-stops!

Filmomat - the Photoplug

 

How to take a measurement

Open/Remove the camera back.

Point the camera against a bright light source.

Position the PhotoPlug behind the camera shutter.

Press the aperture symbol (it will turn red) and release the camera shutter.

The Photoplug in action

The App displays a waveform with two peaks.

Zoom into the signal (two finger pinch) to maximize the signal to the full screen width.

Select the target shutter (the speed you set on your camera) on the bottom left corner.

Use the two blue sliders to measure the distance between the two peaks. Measure from the start of the first to the start of the second peak.

Select “Save Measurement” to save the measured shutter speed. You can select from a list of cameras, that you previously added in the “Camera Manager”

You can override individual values by saving another measurement to the same camera and shutter speed.

After you saved the data, you can view it in the Camera Manager.

The Correction value is given in thirds of an f-stop. “+1” tells you to open the aperture by 1/3 f-stops in order to get a correct exposure. On the other hand “-2” tells you to close the aperture by 2/3 f-stops.

Photoplug in action

The Analogue WonderLab

When you’ve shot your roll of film and are looking to get it developed and scanned, then look no further than the Analogue WonderLab!

We can process your film for you, scan it at the resolution you need, and email back the files quickly and securely.

We offer FREE tracked shipping to our lab so that you can send us your negatives with total peace of mind. And our lab team are all passionate film shooters themselves, so you know that your film will get the best possible treatment!

Head to the WonderLab page here to read more details, or add the bundled developing above (if available) when you purchase your film.

Please note that our long-term aim is to offer developing for every film that we sell, but this is a work-in-progress. For full details and FAQs please head here

We send all parcels via TRACKED service - free in the UK for orders of film over £50.

This means that when you buy your film from us you will be emailed a tracking link at dispatch, and will be able to follow your parcel’s journey all the way to safe arrival.

Please note that it is not a signed service so you won’t need to be at home to receive your film, and our letterbox-friendly boxes fit through the vast majority of European letterboxes!

You will have different shipping options and costs at checkout, depending on how quickly you need your film. Please refer to the Delivery Details page for full information

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Customer Reviews

Based on 2 reviews
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D
David Usher
It works

The signal is displayed as aa irregular wave display on the screen. Measuring the time between peak to peak is meant to give the shutter speed. Unfortunately they are not even peaks and there is no real guidance on the best to go for. Obviously the biggest up and down are the most logical, but not always. Now I suspect this as much to o with the way a shutter operates. Practically a vertical plane metal shutter seems to give the cleanest and most reliable readings so this is the best way to start and get an idea of the best peaks to use.
It works OK on my Apple 5 so obviously does not need the latest OS, which can be a pain with some software.
For what it does it is good value for money; just be prepared for some interesting data analysis.

J
J.T.
Useful but a bit pricy

Useful little gadget especially for checking shutter accuracy of leaf shutter lenses.