Douglas Photo Calculator a versatile, easy-to-use solution for amateur and professional photographers: Review

Sometimes, when I am out taking photos, I tend to want to grab an image quickly and get the shot in before my subject disappears. You know the ones I mean; sunsets that disappear behind a cloud, a rainbow that lasts just seconds and a sleepy animal that will change position the moment you begin adjusting the zoom lens, adjust the aperture and point the camera.

The result is all too often a photo is taken of my subject with a hurried blur, a shot out of focus or an image with too much or too little light in. Sometimes you just wish the camera would automatically sense the conditions and guess the light in the shot and take the photo.

Using Douglas Photo Calculator is about the closest I have come to operating my camera with a brainy sensor attached before I take that ultimate snap. It does provide a problem-solving remedy for both amateur and professional photographers as it allows for a choice of camera formats from digital to standard film cameras with its huge database being updated virtually every week.


This app basically works out the calculation of key metrics for all photographers, even useless ones like me, who simply have to have creative and consistent photography images. It makes taking high quality photography just that little simpler than before.

Most cameras used to have that “circle of confusion” as it was so aptly named; but open up the Douglas Photo Calculator and you need only enter the film format, resolution and the circle of confusion status (auto or manual). If you have ever struggled with calculating the depth of field and the angle of view then let the Douglas Photo Calculator work it all out for you.

It not only made my job easier and allowed me to quickly take my favourite photos but it was giving me some high quality images back in return – thanks to the data being calculated correctly.

It only takes a few short clicks and the app sorts out your hyper focal distance (that’s the distance from your lens to your nearest point of the subject which are taking a photo of.

The angle-of-view is also calculated, so you can get the right focal length of your lens depending on which film format you are using (even calculates for old 35mm camera films too) and it works out the diffraction to avoid that distorted image after you have taken your photo.