DOF Slider: Focus Calculator

DOF Slider: Focus Calculator

Depth of Field & Hyperfocal

21 ratings
53 reviews
Free
In-App Purchases

Details

Released
October 23, 2013
Updated
October 20, 2026

Features

DOF Slider: Focus Calculator screenshot #1 for iPhone
DOF Slider: Focus Calculator screenshot #2 for iPhone
DOF Slider: Focus Calculator screenshot #3 for iPhone
DOF Slider: Focus Calculator screenshot #4 for iPhone
DOF Slider: Focus Calculator screenshot #5 for iPhone
DOF Slider: Focus Calculator screenshot #6 for iPhone
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About

This app calculates depth of field for photography. Select your camera, distance, aperture, and lens using intuitive sliders to instantly see your perfect shot settings. Supports metric and imperial units, a wide range of apertures, focal lengths, and hundreds of camera models.

✓Extensive camera model selection
✓Adjustable distance, aperture, and lens sliders
✓Instant depth of field calculations
✓Metric and imperial unit support
✓Wide aperture and focal length range
✓Customization via in-app purchases
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What's New in DOF Slider

2.8.0

October 20, 2026

Made for iPhone Duo, and a whole new look. • iPhone Duo: stand it up and the results face you while the sliders lie flat; open it like a book and each half gets its own column; fold it closed and your controls move to the side bar. Layouts glide as you fold, and a little aperture iris opens with the hinge. • A live scene shows what stays sharp. Change focus, aperture or lens and the landscape blurs to match, with a very good French bulldog as your subject. Turn its animation off in Settings if you prefer. • A redesigned calculator: a big depth of field readout, near, focus and far limits at a glance, and numbers that roll as you drag. • Camera, settings and search now live in the navigation bar, with a new camera search. • Resizable windows on iPad and fixes throughout.

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Subscriptions & In-App Purchases

$0.99

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You can kill the ads by paying 0.99$.

User reviews

Readings unofficial for NIKON D780

The only settings available are for the NIKON D750 and the NIKON D 700. My camera NIKON D780 is not available. I tried to set in for NIKON D7 50 but they are in effect not very accurate. But I must say at least sometime I can vary the differences for usability.

Clean, efficient, complete

I don’t get why this isn’t better rated, although the brutal ads may be part of it. I discarded it at first because they were so frequent, it seemed like a spammy junk app. After trying all the other DOF apps I reluctantly came back to this one and for some reason got way fewer ads so I could actually test it out.

Wow, what a great interface! Clean, clear, simple. Easy to read big numbers and one-handed operation. Actual 1/3-stop adjustments for aperture, not just a decimal number you have to fiddle with to get right. a usable focus range, that reads out in sensible units. All the info you need and none that you don’t.

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Unusable

Due to the ad logic on the free version it’s unusable.

Junk now

…Plus the intrusive ads

Did not have my camera, still charged money

Waste of time

Developer apps

FAQ

What does the DOF Slider app do?

The DOF Slider app is a depth of field calculator for photographers. It allows you to select your camera, distance, aperture, and lens using intuitive sliders to instantly determine the settings for your perfect shot. It helps you visualize and achieve the desired focus range for your photographs.

What are the key features of DOF Slider?

Key features include an extensive list of modern and vintage cameras, adjustable sliders for distance, aperture, and lens focal length, instant depth of field calculations, support for both metric and imperial units, and a wide range of aperture settings from f/0.5 to f/64. It also offers customization options through in-app purchases.

How much does DOF Slider cost?

The app is free to download and use, but offers in-app purchases for additional customization options. These purchases can extend the distance slider for macro or telephoto shots and allow you to purchase specific camera series. All purchases are for a limited time at the lowest possible price.

What cameras and formats are supported?

The app supports hundreds of camera models from major brands like Sony, Nikon, Canon, Fujifilm, and Leica, as well as larger film formats such as 35mm, 6x4.5, 6x6, 4x5, and cinematographic formats like 16mm and 35mm. It also includes a full list of Circle of Confusion values.

Can I use this app for macro photography?

Yes, you can use this app for macro photography. In-app purchases are available to extend the distance slider specifically for macro, telephoto, and superzoom distances, allowing for precise calculations even at very close focusing distances.