Have you ever wondered why video creators end up buying so many lenses when they buy a camera?
It's because better lenses equal better quality video and higher quality video is a game-changer!
However, if you don't want to buy a ton of lense for video, I'm going to share with you how to take a prime lens that has one focal length, like the Sigma 16mm lens, and turn it into a 16-24 f1.4 zoom lens FOR FREE!
On an actual zoom lens, like the kit lens that comes with any camera, there is a range you can actually turn the lens and zoom in and out.
What we've experienced on our phones for a long time is a digital zoom, where you pinch and zoom in or out on your phone.
With new phones, like the Google Pixel 5, you now have multiple lenses on your phone that no longer digitally zoom but operate similar to a regular camera and switch between the lenses to get you closer or further away from an object without moving or losing video quality.
However, Sony's Clear Image Zoom allows you to not digitally zoom like an old phones pinch to zoom feature, where your image starts getting blurrier in a bad way and lose quality tremendously but to digitally zoom into the image or video using the camera's sensor.
The benefit of this is being able to maintain the image quality sharpness and your normal lenses background blur but zoom in on the sensor up to 2x times!
So, your Sigma 16mm f1.4 lens has now become a 16-32mm f1.4 lens.
In this example, I'll be showing this for using the Sony a6400 but if you have the a6100, a6400, a6600, or similar Sony mirrorless models, the menu system should look the same.
On your camera, go to MENU > Tab 2 > Page 5
Where it says "Zoom Setting", Change it to "Clear Image Zoom".
If you plan to use this a lot, like I do, in my videos and photos, I set Clear Image Zoom to a custom button on my camera and I also added it to the MY MENU (the star icon tab in your menu) where you can select whatever options you want to access the most and avoid the rest of your cameras menu system.
If you want to see how I set my camera up for video, literally every menu setting, I create a full video walkthrough you can check out here.
Once you've set up your camera to access clear image zoom much quicker, you can do a couple of things
Lens Size x Clear Image Zoom Crop = Focal Length
(Ex.: 16mm x 1.1 = 17mm Equivalent Focal Lenth, etc.)
You'll start by entering the lens size in the white box. Then, the calculator does the rest for you.
If you have the Sigma 16mm lens, you'll enter "16" in the white area.
Depending on which crop you use for Clear Image Zoom, will dictate the closet focal length your video or photo is now at.
If you want to download a copy of this Clear Image Zoom Calculator, you can do so below.
This was something that puzzled me for a bit BUT there is a reason why you're only seeing 1.5x crop on your Sony camera, and no, it's not broken.
The Sony sensors are actually are taking a 6K video file and downsampling that to 4k video.
With Clear Image Zoom, you can crop in up to 2.0x while in a 1080p HD video resolution.
If you're in 4K already, you can only crop in an additional 1.5x times only.
This includes the free editable calculator to use with Sony's Clear Image Zoom feature on their mirrorless cameras.
You add your lens size and the calculator does the rest!