
The Vivacap replaces your lens cap and has been designed with wire handles which will let you remove the unit without having to take off your lens hood.
I set up a scene with some common household items in the hope you can reference these items and compare the colour. The same exposure was used throughout which was shutter 1/4, aperture 5.6 and ISO 200. All images were taken in raw with a Canon 50D with a standard profile and converted using DPP to jpeg creating files 638 x 425 pixels.
First up image taken with auto white balance:
Second, same image but white balance set in DPP with the white picker on the grey card seen in the image:
Third, custom white balance using the Seculine Vivicap:
Fourth, custom white balance using a piece of white toilet paper:
White balance can be very subjective and you may prefer cooler images to warmer images etc.
My Opinion
The auto white balance image looks a little cold to me. Using the grey card to set white balance looks good and so does the image using the Vivacap which looks a little bit warmer. The image using the toilet paper again looks a little cool.
I do not have an Expodisc to do a comparison with but I suspect there wouldn't be any great improvement in white balance. I have heard of photographers using the old plastic caps from Pringle crisps to set their white balance. I will now be using the Vivacap when taking shots in the future to save time post process.
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