smartfilming

Exploring the possibilities of video production with smartphones

#10 Important update on the subject of Camera2 API — 26. March 2018

#10 Important update on the subject of Camera2 API

So some time ago I made a blog post about the topic of Camera2 API on Android devices and why it is important if you are interested in doing more advanced videography on your smartphone. If you don’t have a clue about what Camera2 API is, please check out my previous article before continuing to read this. One of the things that my previous article suggested was that you need a device with „Full“ or „Level 3“ Camera2 API support built into the Android OS by the manufacturer of the phone to take advantage of pro video recording apps. If your device has only „Legacy“ or „Limited“ Camera2 API support then you are not able to even install an app like Filmic Pro. However, after recently getting an Honor 6A into my hands, I need to differentiate and clarify some things.

The Honor 6A is a budget device from Huawei’s sub-brand Honor and shows „Limited“ Camera2 API support level, when testing with a probing app like Camera2 probe. I do own a fair amount of different smartphones to test with, but I realized that before getting the Honor 6A, I had only had phones with either „Legacy“ support level or „Full“/„Level 3“, none with the in-between „Limited“. And while the „Limited“ status does mean that you can’t install Filmic Pro at all and not activate the pro-mode in Lumio Cam, other pro video recording apps are not that picky and salvage what the „Limited“ support level gives them over „Legacy“ (the worst Camera2 API support level out of the four mentioned) instead of blocking the installation altogether. The other pro video recording apps I am talking about are Open Camera, ProShot, Footej Camera and Vimojo. If your device has „Limited“ Camera2 API support that includes manual exposure etc. you will be able to use these features (for instance control of ISO and shutter speed) in the aforementioned apps. Please note that when using ProShot, Footej Camera or Vimojo, Camera2 API is automatically activated whereas with Open Camera you will have to go into the settings, activate the usage of Camera2 API and restart the app.

Manual exposure controls in Open Camera.

Anyway, this is very good news for all those rocking an Android device that has only „Limited“ Camera2 API support: Prominent examples of such devices would be fairly recent Huawei phones including their flagship P-series (starting with the P9 / P9 Lite & newer, same should go for their Honor sub-brand) and fairly recent iterations of Samsung’s mid-range A-series (A3, A5, A7) – possibly also the entry-level J-series (J3, J5, J7). You still can’t use FilmicPro on these devices, but other pro video recording apps come to the rescue and do give you more advanced controls.

P.S.: These findings are also of relevance to owners of Sony phones. As I explained in my first blog post about Camera2 API, FilmicPro has (still) blacklisted Sony phones (even those with „Full“ or „Level 3“ support level) because of severe problems that they encountered during testing.

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#8 Bare bones or full featured: best stock camera apps for shooting video on smartphones – PART 1 — 20. December 2017

#8 Bare bones or full featured: best stock camera apps for shooting video on smartphones – PART 1

One of the first steps when getting more serious about producing video content with a smartphone is to look at the more advanced video recording apps from 3rd party developers. Popular favorites like „FilmicPro“ (available for both Android and iOS) usually offer way more image composition controls, recording options and helpful pro features that you find on dedicated video cameras than the native stock camera app provided by the maker of the smartphone. While quite a few stock camera apps now actually have fairly advanced manual controls when shooting photos (ability to set ISO and shutter speed might be the most prominent example), the video mode unfortunately and frustratingly is still almost always neglected, leaving the eager user with a bare minimum of controls and options. In 2015 however, LG introduced a game changer in this regard: the V10. For the first time in smartphone history, a phone maker (also) focused on a full featured video recording mode: it included among other things the ability to set ISO and shutter speed, lock exposure, pull focus seamlessly, check audio levels via an audio level meter, adjust audio gain, set microphone directionality, use external microphones, alter the bit rate etc. etc. Sure, for certain users there were still some things missing that you could find in 3rd party apps like the option to change the frame rate to 25fps if  you’re delivering for a PAL broadcast but that’s only for a very specific use case – in general, this move by LG was groundbreaking and a bold and important statement for video production on a smartphone. But what about other phone makers? How good are their native camera apps when it comes to advanced options and controls for recording video? Can they compete with dedicated 3rd party apps?

First off, let me tell you why in most cases, you DO want to have a 3rd party app for recording video (at least if you have an Android phone): external microphones. With the exception of LG, Samsung (and I’m told OnePlus) in their recent flagship lines (plus Apple in general), no stock camera app I have come across supports the use of external microphones when recording video. Having good audio in a video is really important in most cases and external microphones (connected via headphone jack, microUSB, USB-C or Lightning connector) can be a big help in achieving that goal.

So why would you use a stock camera app over a dedicated 3rd party app at all? Familiarity. I guess many of us use the native camera app of a smartphone when snapping casual, everyday photos and maybe also videos in non-professional situations. So why not build on that familiarity? Simplicity. The default UI of most native camera apps is pretty straight-forward and simple. Some might prefer this to a more complex UI featured in more advanced 3rd party apps. Affordability. You don’t have to spend a single extra penny for it. I’m generally an avid advocate of supporting excellent 3rd party app developers by paying for their apps but others might not want to invest. The most important reason in my opinion however is: Stability/Reliability. This might not be true for every stock camera app on every phone (I think especially owners of Sony phones and lately the Essential Phone could beg to differ) but because of the fact that the app was developed by the maker of the phone and is usually less complex than 3rd party apps, chances are good that it will run more stable and is less prone to (compatibility) bugs, especially when you consider the plethora of Android devices out there. The V10’s stock camera app, despite being rather complex,  is rock-solid and hasn’t crashed on me once in almost 2 years now.

Over the last months I have taken a closer look at a whole lot of stock camera apps on smartphones from LG, Samsung, Apple, Huawei, Sony, Motorola/Lenovo, Nokia (both their older Windows Phone / Windows Mobile offerings AND their new Android handsets), HTC, Nextbit, BQ, Wiko and Google/Nexus. It goes without saying that I wasn’t able to inspect stock camera apps on all  the different phone models of a manufacturer. This is important to say because some phone makers give their flagships models a more advanced camera app than their budget devices while others offer the same native camera app across all (or at least most) of their device portfolio. Also, features might be added on newer models. So keep in mind, all I want to do is to give a rough overview from my perspective and offer some thoughts on which phone makers are paying more attention to pro features in the video recording department.

The lowest common denominator for recording video in a stock camera app on a smartphone at the moment is that you will have a button to start recording in full-auto mode with a resolution of 1920×1080 (1080p)  (1280×720 on some entry level or older devices) at a frame rate of 30fps. „full-auto“ basically means that exposure, focus and white balance (color temperature) will be set and adjusted automatically by the app depending on the situation and the algorithm / image processing routine. While this might sound like a convenient and good idea in general to get things done without much hassle, the auto-mode will not always produce the desired results because it’s not „smart“ enough to judge what’s important for you in the shot and therefore doesn’t get exposure, focus and/or white balance right. It might also change these parameters while recording when you don’t want them to, like for instance when you are panning the camera. Therefore one of the crucial features to get more control over the image is the ability to adjust and lock exposure, focus and white balance because if these parameters shift (too wildly/abruptly/randomly) while recording, it makes the video look amateurish. So let’s have a look at a couple of stock camera apps.

To be continued soon with “Part 2″…