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The Gimbse Camera App in Depth

Gimbse

MobiStarter
Developer
Real Name
Christian Kappertz
Device
iPhone 11 Pro
Are you a Gimbse user or have lately considered to become one?
And have you been wondering what to do with all those functions, especially the perspective ones?
Then do not hesitate, all questions about Gimbse are welcome!
 

Gimbse

MobiStarter
Developer
Real Name
Christian Kappertz
Device
iPhone 11 Pro
Why should perspective be relevant for image composition if no architecture or similar is depicted?

Our sense of gravity is very strong because it is simply vital for us. Can I step on a surface or will I slip because it is not level? Will this wall that I have just constructed remain standing or fall over? Will this pool of water run out because the edge is not straight? There are many examples from everyday life, not without reason we find it important to be in balance.

In hand-painted pictures from the time before the invention of photography you will hardly find falling lines or people standing askew. Upright in reality also meant upright in the picture. It was only with the mass availability of photography that more and more pictures appeared in which people are leaning at an angle, the sea runs out, trees no longer grow directly into the sky, houses look like tents, etc. We have simply got used to the fact that gravity or its visual equivalent has disappeared from the pictures.

When autofocus was introduced in the 70s, it became possible for more and more people to take sharp photos without special training or expensive equipment. Thanks to rapid technical development, it is now possible to apply this effect to perspective, or in other words: more and more people can take straight photos without much practice or specialist knowledge. Gimbse was developed to offer just that, and thus, image by image, to bring gravity back into our picture of the world!
 
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terse

MobiLifer
MobiSupporter
Real Name
Ted
Device
iPhone Xs
I loaded Gimbse just a couple of days ago, and I have to admit I haven't taken it out shooting yet. Instead, I've been fascinated just moving it around and watching the on-screen image and the overlays change. :lmao:

I do have one question to start, though. How is Calibration supposed to work? I align the blue vertical with a vertical line in the image... and then what? If I do nothing, nothing seems to happen, and if I tap in various places, nothing also seems to happen.
 

Gimbse

MobiStarter
Developer
Real Name
Christian Kappertz
Device
iPhone 11 Pro
Hi Ted, and thank you for asking!

I would like to elaborate further and address these questions first: Is it necessary to calibrate Gimbse in order to use the app, and how can calibration improve the quality of my images? It is not necessary to calibrate Gimbse, all features work the same way. But by calibrating you can optimize the precision of the perspective correction. Depending on the individual device, this can become more or less clear in the image results.

For the app to calculate the virtual position correction, it needs the exact position measurement in conjunction with a vertical reference line (or edge) on the left and right side of the viewfinder image. For this, the magnetic axis, i.e. the blue line with the two handles, must rest on the reference line for about half a second, which of course requires a very steady hand. For this purpose I support my arms on a fixed shelf, of course you can also use a tripod or something similar.

Now finally to your question: If the first measurement was successful, the magnetic axis automatically changes to the right side. If the measurement is also finished there, a message confirms the successful completion of the calibration. There are four device orientations that can be calibrated for both the camera pointing backwards and forwards: portrait, portrait upside down, landscape left and landscape right. A small message informs you for each orientation of the device whether it has already been calibrated. This only needs to be done once for each orientation.
 

terse

MobiLifer
MobiSupporter
Real Name
Ted
Device
iPhone Xs
Hi Ted, and thank you for asking!

I would like to elaborate further and address these questions first: Is it necessary to calibrate Gimbse in order to use the app, and how can calibration improve the quality of my images? It is not necessary to calibrate Gimbse, all features work the same way. But by calibrating you can optimize the precision of the perspective correction. Depending on the individual device, this can become more or less clear in the image results.

For the app to calculate the virtual position correction, it needs the exact position measurement in conjunction with a vertical reference line (or edge) on the left and right side of the viewfinder image. For this, the magnetic axis, i.e. the blue line with the two handles, must rest on the reference line for about half a second, which of course requires a very steady hand. For this purpose I support my arms on a fixed shelf, of course you can also use a tripod or something similar.

Now finally to your question: If the first measurement was successful, the magnetic axis automatically changes to the right side. If the measurement is also finished there, a message confirms the successful completion of the calibration. There are four device orientations that can be calibrated for both the camera pointing backwards and forwards: portrait, portrait upside down, landscape left and landscape right. A small message informs you for each orientation of the device whether it has already been calibrated. This only needs to be done once for each orientation.
Aha, thanks. I didn't know what I was waiting for so I was being too hasty. Off to try again...

EDIT: Off to try again after my phone charges up...
 
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