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Phonescoping FAQ

Phonescoping Frequently Asked Questions 

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Which scope should I buy?

The better the optics and the better the light gathering the better for phonescoping. But having said that, you don't need a top of the line scope to get decent results. Modern scopes with wide angle eyepieces, work better than old school scopes that tended to have very narrow eyepieces. Note also that if you're having to buy a scope, are you sure that phonescoping is right for you? If you are set on phonescoping and are looking to buy a scope or upgrade, I'd recommend checking out Kowa. In particular, their extra wide angle lenses are amazing for phonescoping. I would go as far as saying they are the future of phonescoping! More on this soon...

 

Which phone should I buy?

Most phones will work ok for phonescoping, but more modern phones tend to have better cameras. Some phones have multiple cameras and the ones with x2 or x3 telephoto lenses seem to work particularly well for phonescoping, as they remove the need to use digital zoom (throwing away quality) to remove vignetting (the black circle you see around the image). Every phone/adapter/scope combination is different, so you might want to try before you buy...

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I've seen many people recommending Samsung phones over iPhone and vice versa, but none of these people seem to have done a side by side comparison. Check out the spec of a phone you're looking at using the detail on wikipedia. The size of the sensor (in MP or megapixels - the bigger the better) is one factor. The focal length (eg. f1.4 - the smaller the better) is another. Raw stats alone don't tell the whole story however - the quality of the glass, and many other hardware and software details (that aren't shared by the manufacturers) will have an impact. If you like Android phones, stick with Android. If you like iPhones, stick with them.

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I struggle to line up my phone with my scope, help?

You need a phonescoping adapter which locks the phone safely onto the eyepiece of the scope. This will vastly improve the quality of your phonescoping! See below for more info.

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Which adapter should I buy?

There are lots of options out there, but many are pretty clunky. You get what you pay for, and cheap adapters tend to be fiddly to use, deliver poor results, and don't last through frequent use. The Smartscope Vario is a really solid and easy to use universal adapter with eyepiece rings for most scopes, and an adjustable clamp that will fit most phones.

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Why is my screen black?

"When I put my phone onto the scope, all I see is a black screen even though the phone is aligned with the scope."

If you have multiple cameras on your phone, the phone uses clever software to combine the image from each camera, so you see black. You need to download a specialist camera app that allows you to select and use just one camera. Procamera (iOS only) or FilmicPro (iOS or Android) will do this.

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Why does the brightness or focus on the screen keep changing?

Camera apps default to auto brightness and auto focus, which means they keep changing as the brightiness of the scene you're filming changes. If you're photographing or filming a subject that isn't moving, like a perched bird, lock the focus and exposure. A specialist camera app will do this more effectively than the native camera app that comes with your phone, as it gives you more control over the camera settings and usually has a more helpful interface.

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Which phone camera lens should I use?

Modern smart phones usually have more than one camera lens. Lenses can often include extra wide angle, or telephoto lenses. Using a normal or wide angle lens often leads to vignetting in a phonescoping shot, where you can see a black ring around the image. You can pinch zoom to remove the vignetting, but this is using digital zoom - effectively throwing away quality. The alternative is to crop the final image - which will also throw away resolution and quality. A telephoto lens (providing x2 optical zoom) usually works well for phonescoping by removing the vignetting without need for any loss of quality.

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Why do my photos/videos look terrible after I've sent them to another phone/computer?

Most phone apps will recompress and/or change the format of your photos or video when you send them elsewhere. Whatsapp heavily compresses video as does iOS Airdrop. Always use caution when transferring files and ensure you're not losing data. For iOS, go to Settings>Photos>Transfer to PC or Mac>Keep Originals. When you select a particular photo or video, there is also an options link for that particular transfer that allows you to require inclusion of original files as well as edits and metadata. Check the size of the photo before and after transfer. If its suddenly a lot smaller, its because the software has recompressed the photo and thrown a lot of the image quality away!

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Where else can I get help?
  1. Message me on twitter or contact me here - I'm always happy to help.

  2. Join the Phonescoping group on Facebook. I dislike Facebook in general, but this phonescoping group is very friendly, and a good place to share your photos and videos.

  3. Birdforum has a number of relevant forums here. It's pretty quiet, but there are posts now and again.​

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Phone Scoping Guide
Phonescoping - digiscoping - wildlife - nature - photography - conservation

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