Lens•Lab is a virtual lens simulation tool for photographers of all skill levels. It graphically illustrates how depth of field and field of view relate to your SLR camera and lenses.

Professionals will like how quick and easy it is to get depth of field calculations.

Semi-pro photographers will enjoy configuring "what-if?" scenarios for various lenses.

Photography beginners will find it to be a great learning tool by exploring the interplay of aperture, focal length, and focal distance in real time.

Lens•Lab is more than a great depth of field calculator, it's a lens simulator that can help you explore, see, and intuitively understand how depth of field works with your camera and lenses.

Lens•Lab Features:

Advanced visual depiction of depth of field with real-time controls:
• The background scales from 10 centimeters to 100 meters interactively
• Out-of-focus areas are represented as blurred in real-time
• Distance labels, angle of view, and other information updates as you touch

Easily control aperture, focal length, and focal distance with sliders or touch:
• Aperture (from ƒ/0.95 to ƒ/64 in continuous increments)
• Focal Length (configurable from 1mm to "very large number")
• Focal Distance (from 10cm to 100m)

Information overlays are independently configurable:
• Hyperfocal Distance
• Far Depth of Field
• Focal Distance
• Near Depth of Field
• Total Depth of Field
• Vertical Angle of View
• Distance Scale
• Simulated Blur

Sensor size is configurable for:
• Full Frame (35mm)
• APS-H (1.3x crop factor)
• DX (1.5x crop factor)
• APS-C (1.6x crop factor)
• Four Thirds (2.0x crop factor)

Additionally, there are controls for distance units (metric or imperial) and display of Full Frame Equivalent focal length (for cameras with sensors smaller than full frame.)

Included is a usage guide that explains all features of the application as well as depth of field in photography.

Lens•Lab works with all iPhone, iPod Touch, and iPad models running iOS 8 or newer.

What's New

Version 1.3.2

• Fix for crash on plus devices

Ratings and Reviews

Decent app


This is a very easy to use app, with a simple to use interface. If you are just looking to know the DOF for a particular setup, this is the app for you.

I especially liked the slick visual representation of the lens view and the movable background. Objects are roughly to scale, so it gives a pretty good idea of what would be in focus.

Unfortunately, this app is missing a measure of the viewable area. It does calculate the angle of view, but if I wanted to do the math, I wouldn't buy this app. Displaying the dimensions of the viewable area at the plane of focus (how tall and wide the plane is) would help in planning shots. It would answer the question, "How far from a person do I need to be to get a full length shot at 85mm on a 35mm sensor?" That isn't something the current app answers.

For me, adding this additional calc would make this a 5 star app. If you don't need that, this is already a 5 star app IMHO.

Great app, great developers.


This app is accurate, easy to use, and generally fun to play around with. I don't use it in the field much, but I do use it to plan out shots ahead of time.

What impresses me more than the app itself is its developers. I was asked for feedback, suggested the sliders could use more precision controls, and boom, here it is on the next update (about a week later). Two thumbs up for these guys. Great app, great team, would recommend to friends.

I've used this for years


As a photographer and trainer, I'm often asked about lenses and how they work. Sometimes people get it, with just a few sentences. Sometimes it helps to show them instead. This is what I use to show them. Whenever I show the other trainers, they end up getting this too. I don't use it all the time, but when I do, I'm glad that I have it.


Jeff Menter
1.6 MB
Photo & Video
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2011-2018 Jeff Menter


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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