Active Oldest Votes. Improve this answer. Michael C Michael C k 9 9 gold badges silver badges bronze badges. Does focal length affect the perceived distance to an object? If I found the longest focal length, could I use it to calculate perceived "zoom"? A long focal length will make things "far away" seem closer. However you cannot related that to "zoom" which is just a ratio of focal lengths. Property of the lens you are using You could define 50mm as you "baseline" and then user zoom as a relative term to 50mm, BUT you would need to state what you use as your baseline.
What do you want to achieve? A longer focal length can never be the same as being closer to an object, because you can't change perspective by doing anything other than moving. Or, by taking a 3D image and re-rendering, but we'll leave that aside for a decade or so. The focal length of a lens can be used to determine how much of the picture a distant object will fill, though.
See the existing answers linked above, and particularly photo. Photo of the Week. Submit your photo Hall of fame. In essence, optical zoom should offer identical results to moving closer to your subject. Glass quality can affect results.
Depending on the lens, aperture can also be reduced as you increase the focal length. In smartphones, optical camera zoom is a novel feature. Polaroid and ASUS also gave the idea a shot without much success. But those were niche products with little to no appeal to general consumers. Meanwhile, common modern smartphones like the Huawei P40 Pro and iPhone 12 phones are highly appealing to consumers, and also have camera zoom lenses installed inside.
Instead, these phones can have embedded periscope-like lens setups that achieve the same effect without affecting looks. Other smartphone camera lenses with less complex set-ups must sacrifice focal length. Instead, the phone seamlessly switches to the camera with the higher magnification factor. Next: Here are the best Android mobile camera lens add-ons.
Digital camera zoom achieves a similar effect to optical zoom without using mechanical work or glass elements. It will essentially cut off areas around your scene to make it seem like you are closer to the subject. The remaining part of the image is enlarged using algorithms, hence the name digital.
Actual there are now quite a few DLRS lenses which are 10x zoom or greater. Five have been reviewed on this site, four mm zooms and one mm 15x. There are many that exceed the 10x ratio. Nikon , Sony , Tamron among others.
To the OP. The "magnification" acsmith refers to is the longest focal length divided by 50mm 35mm or FF equivalent , with 50mm being a "magnification". Is it worth the hefty price tag? We take a look at the Cine, the high-end model in this series. The Nikon Z9 is the company's first camera to feature a stacked CMOS sensor, which brings a raft of new features, including blazing speed and autofocus performance to the Z lineup.
Click through for our detailed first impressions of Nikon's latest professional ILC. The Sony a7 IV is the fourth generation of the company's core a7 full-frame mirrorless camera model, and it's the most advanced yet. Click through for an in-depth look at Sony's latest full-frame mirrorless ILC.
Nik Silver Efex Pro 3, one of the standout components of Nik Collection 4, is a black-and-white conversion tool that goes far further than the grayscale or black-and-white tools built into all-in-one photo apps. For some users, this app alone might be worth the cost of the whole collection — find out for yourself in our review.
The Nikon Z mm F2. Get all the details in our full review. These capable cameras should be solid and well-built, have both speed and focus for capturing fast action and offer professional-level image quality. Although a lot of people only upload images to Instagram from their smartphones, the app is much more than just a mobile photography platform.
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