Lens User Reviews

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  • Helpful

    LensLab is intuitive and helpful, I'll definitely be keeping it in my iPod! The controls are easy to adjust plus switching between different types of lenses and cameras is a breeze.
  • If you want to know what is in focus, this is the app

    I can't tell you how much time I've spent trying to find the sweet spot on my 100mm macro lens - where the whole flower is in focus, not just the middle or front. This tells you instantly! Wow. I look forward to many happy days together with this app.
  • Wow wow wow

    Great app. Best depth of field calculator I have seen. Very clean layout. Easy to adjust settings. Great visualization of effect on DoF of various focal lengths and apertures. Many settings to adjust to how much information you want to see. Great work Jeff.
  • 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.
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  • Excellent dof display

    The one thing missing to make this a complete lens exploration app is a measure of what horizontal and vertical ranges are covered at the focus length. Currently just shows vertical angle of view. Yes, I can do the trigonometry myself, but it would be killer to have that no displayed on the screen.
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  • Pretty, but lacking

    While the app does a nice job of a physical presentation for the DoF, I was rather put off by the lack of options for the sliders.

    For instance, the focal length only let's you go to a maximum of 200. The aperture settings had some strange numbers ( 5.7? ). It was also lacking some apertures - for instance, my Nikon D90 has f/10, but that's not available as an option.

    Finally, there is no place to put in the circle of confusion number, nor does it maintain a camera database. This means that if your camera has a different circle of confusion than the 3 the app lets you choose from, the calculations are skewed.

    It looks pretty, but other DoF Calcs have more flexibility and better customization.
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    Developer Response

    I've added an update that allows configuring maximum focal length. The aperture settings are designed to allow for configuring a wide range of lenses. Configuring the circle of confusion values are a good suggestion, it's on my list of features to add.
  • Best tool yet for helping visualize a shot

    Freaking love this app. In 30 seconds it taught me what two years shooting hadn't ... that shooting a long lens wide open means your depth of field is about 3 inches. Sliders and a visual index that gives you an idea of the relative size of things as they'll appear in frame make this the best lens tool I've run across yet.

    Great for anyone shooting rangefinders as well.
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  • 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.
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  • Good app.

    I like that it is easily manipulated via the touch interface. The ability to drag the background is a nice added touch.
  • Nice app, info page biased

    First off, nice app by the author. It provides solid information regarding depth of field. However, while reading through the information page I found myself annoyed by the misinformation the author provides regarding quality of Dale cameras based on their sensor size. While sensor size does have certain impacts on a DSLR, it does not specifically define the grade or quality of a DSLR. This is just my pet peeve, and if you ignore the authors bias in the info page, this is a good app. I'm keeping it on my iPad.
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