Photo resolution on the iPhone
Ask iLounge offers readers the opportunity to get answers to their iPod-, iPhone-, iPad-, iTunes-, or Apple TV-related questions from a member of the iLounge editorial team. We'll answer several questions here each week, and of course, you can always get help with more immediate concerns from the iLounge Discussion Forums. Submit your questions for consideration using our Ask iLounge Submit Form. We reserve the right to edit questions for grammar, spelling, and length.
Q: I was hoping you could help me with a query I had about the photos application on the iPhone. I’ll be buying one in about a week, but I’d heard that iTunes resizes all photos to fit the iPhone screen. At first I was hugely disappointed in what seemed like a ridiculous idea by Apple, particularly since there wasn’t a ‘Don’t optimise images’ checkbox in iTunes. However reading your story about photos on iPods and iPhones I learned that iTunes actually transfers 3 versions including 1 sized specifically for TV output. Is this larger version also used on the iPhone screen as well? Thinking about it, having a 320x480 photo only on the iPhone would make zooming in a bit pointless seeing as no extra pixel information is there. So basically, I’d like to ask… does this TV version get used on the iPhone when zooming in?
A: In the case of the iPhone and iPod touch, there is only a single image in a 640x480 resolution that is used for both TV Output and on-screen display. The other image sizes are for thumbnail display purposes and sending photos via the e-mail application on the iPhone. Although the native screen resolution of these devices is 320x480, as you have surmised the “zoom” feature necessitates the larger-sized image.
In fact, the iPhone did not offer any TV output options until the v1.1.1 firmware was released in late September. Therefore, originally the 640x480 image was stored and used only for on-screen display. When TV output capabilities were introduced, the existing 640x480 image was simply used for this purpose as well.
More information can be found in our article, The Complete Guide to Displaying Photos on the iPod and iPhone.
- Will removing a credit card from Safari also remove it from Apple Pay?
- Can I mute Handoff calls coming into my Mac from my iPhone?
- How do I keep my iPhone calls from ringing on my Mac?
- Why doesn’t Traffic show up on my Today Notifications Screen?
- Why doesn’t my iPhone reconnect to Wi-Fi after I turn it on?
- Why can’t I see the iPad-style landscape view on my iPhone 6 Plus?
- Spotify penalizing artists who release Apple Music exclusives [Update: Spotify responds]
- Apple releases new round of iOS 10 and tvOS 10 betas
- Report: 2017 iPhone to eliminate home button
- Apple to add payment technology to iPhone for transit passes, Apple Pay in Japan
- Apple releases iOS 9.3.5 ‘security update’
- Report: Apple developing its own Snapchat-style social video editing iOS app
- Apple announces Apple Music Festival lineup including Alicia Keys, Britney Spears + more
- Universal calls an end to exclusives amid criticisms that Apple Music is hurting the industry
- Apple reveals some of its upcoming AI advancements for the iPhone
- Apple Music’s royalty rates complicate Spotify’s contract negotiations
- Western Digital My Cloud (OS 3)
- Distil Union Stanley Stand
- Philips Sonicare FlexCare Platinum Connected Bluetooth Toothbrush
- Audeze EL-8 Titanium Over-Ear Headphones
- Defined Corp Dome Stand for Apple Watch and iPhone
- Speck StyleFolio Pencil for 9.7” iPad Pro
- Audeze Sine On-Ear Headphone
- First Alert Onelink Wi-Fi Smoke + Carbon Monoxide Alarm
- Logitech Create 9.7” iPad Pro Keyboard Case
- iDevices Outdoor Switch Power Outlet
- Inside the betas: iOS 10 Photos gets Advanced Computer Vision
- Inside the betas: iOS 10 Music app delivers ‘clarity and simplicity’
- Inside the betas: iOS 10 Maps gets a major redesign
- Inside the betas: iOS 10 shakes up the user experience
- Inside the betas: watchOS 3 promises a real speed boost
- Inside the betas: A sneak peek at what’s new in tvOS 10
- Filling the Gap: A look at third-party HomeKit apps
- Instant Expert: Secrets & Features of tvOS 9.2
- Instant Expert: Secrets & Features of iOS 9.3
- Opinion: Why Apple needs a dedicated HomeKit app