How exactly does the S9+'s telephoto lens work? - Samsung Galaxy S9+ Questions & Answers

Hey guys. So I've been tinkering with the S9+ and its telephoto lens and I've noticed something weird about it...
So basically, I got one of those clip-on lenses for when I still had my S7. So I figured if I used the 2x on the telephoto, it would get 4x. Odd thing is when I switched over the 2x and had the clip-on lens on the main (top) camera with the telephoto lens effectively covered, it still shows an image (which actually looks 4x!). So does that mean that the 2x still shows the feed from the main cam? Doesn't the telephoto lens have its own sensor?

kisetsu17 said:
Hey guys. So I've been tinkering with the S9+ and its telephoto lens and I've noticed something weird about it...
So basically, I got one of those clip-on lenses for when I still had my S7. So I figured if I used the 2x on the telephoto, it would get 4x. Odd thing is when I switched over the 2x and had the clip-on lens on the main (top) camera with the telephoto lens effectively covered, it still shows an image (which actually looks 4x!). So does that mean that the 2x still shows the feed from the main cam? Doesn't the telephoto lens have its own sensor?
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The telephoto is used only when it detects good light conditions, otherwise, it will be a crop of the main sensor.
You can do the test yourself: in good light conditions, change to the 2x and you will see is using the telephoto sensor; now cover it with your finger and you will see your finer approaching and after a couple of milliseconds you will see an image again. This is because the camera detected no light in the telephoto and changed to the main sensor.
Take out your finger from the telephoto and you will see how it changes again.

Related

How to lock F2.4 lens no matter lighting conditions?

Helo everybody,
I am wondering if there is a way to lock F2.4 lens with 2x zoom no matter lighting conditions? I am so frustrated when we get digital zoom instead of 2x optical zoom because of bad (under 100 lux) in worse than optimal light. It's F2.4 optical stablised lens so why digital zoom? That sucks don't you think..?
honestly, you'll be surprised on how bad the tele lens in capturing light.
You can play with this. Go to live focus mode, turn the blur effect all the way down. This will force the tele lens to be used. Make sure dual capture is ON.
Now go to your gallery and find that pic, compare the picture in Close up Vs. Wide. You'll be surprised on the difference between the two lens.
What boggled me more is the fact that the tele lens is the one that they used for the Slomo mode. You would think that they would use the main lens with brighter aperture for something that requires soooo much light.

low Light problems photos from stars distorted with S9Plus

Hello,
i take photos from the night sky since serveral years (with smartphones too).
Unfortunately with the Samsung S9plus the stars are not pinpoint like as they are on the Samsung S7. They apear very distorted with a kind of a halo.
Ofcourse the smartphone was not moved during 10 seconds of exposure time.
I did layed it down and used the self timer mode to prevent shaking.
I tried it serveral days in comparison with the Samung S7.
The S7 is always much better and show pinpoint like stars.
The distortion of the stars is visible in the RAW files(DNG) too so no jpeg problem forced by the compression.
Could you reproduce the same problems?
I am not allowed to post links.So how to show you the photo?
Could send you the link of the uploaded photos for comparison.
The dual camera variants of Samsung phones tend to overexpose shots, especially during darker environment.
That's what I noticed, and I'm waiting for the update they sent to Note 9s.
https://www.xda-developers.com/samsung-galaxy-note-9-update-camera-improvements/
Are you using the telephoto camera? It has OIS driven by digital gyroscopes. Those gyroscopes aren't effective at low frequencies so the OIS will slowly drift around a small amount. 1/5 second is usually the limit for sharp photos. Even when the gyroscopes are turned off, OIS lenses are VERY sensitive to motion because of the lens being on a soft suspension. Walking next to the tripod could wobble the lens.
You also can't expect clear images if you use F/1.5.
Try using the wide angle lens.
I would send a photo to someone of you so you can post it here into the Tread.
Who like to do it?
The camera was layed down on the ground so no shaking or vibration ppossible during the exposure time.
I found no setting that the OIS gyroscope is working in photo mode. OIS is probably only working in video modes.
Even if it works in photo mode, the camera was layed down, so no shaking could happen.
Who of you could make a photo from the stars with the following settings?
Pro Mode
Camera mounted or layed on the ground with direction to the night sky.
Self timer to prevent shaking
Iso 800
10sec shutter speed
F 1.4
kevinmcmurtrie said:
Are you using the telephoto camera? It has OIS driven by digital gyroscopes. Those gyroscopes aren't effective at low frequencies so the OIS will slowly drift around a small amount. 1/5 second is usually the limit for sharp photos. Even when the gyroscopes are turned off, OIS lenses are VERY sensitive to motion because of the lens being on a soft suspension. Walking next to the tripod could wobble the lens.
You also can't expect clear images if you use F/1.5.
Try using the wide angle lens.
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Antwort unfortunately the tele lens only works in very good light conditions.
Even in a bright lighted room there is no way to activate the real Tele lens. The camera automatic switch to digital Zoom.
Also in pro mode its not possible to use the telephoto lens if the light condirions are not perfect.
This is very bad because if the cameras is standing still completely and the object doesn't move why not using the Tele camera lens in pro mode?
Very interesting Thanks for the link
fortesquieu said:
The dual camera variants of Samsung phones tend to overexpose shots, especially during darker environment.
That's what I noticed, and I'm waiting for the update they sent to Note 9s.
https://www.xda-developers.com/samsung-galaxy-note-9-update-camera-improvements/
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Click to collapse
S9 plus Someone able to shoot a photo from the stars/nightsky?
Hello,
just like to ask if someone here are able to shoot a photo from the stars with the Samsung S9 plus by using the following settings:
Please post your photo here to compare it with my one.
Pro Mode
Iso 800
Shutter 10seconds
F 1.4
Selftimer to prevent shaking
Camera on a tripod or layed on the ground
Thanks

Telephoto camera yellow tint

I recently got a Mate 20 Pro and all seemed fine, including the screen.
I recently noticed (indoors especially) the Telephoto camera has a strong yellow tint. It's not possible to set the manual white balance far enough to counteract it.
Thing is, if I shoot RAW, the colours are normal and in line with the other cameras, so I assume this is a software bug.
It is most definitely using the 3x lens as I can see my finger if i cover the lens.
Has anyone else experienced this? It seems to switch to the actual 3x in lowlight over using the primary camera and cropping. Isn't this backwards? It seems to rarely use the 3x camera.
This thread was the only thing I was able to find in a similar vein.
https://forum.xda-developers.com/mate-20-pro/help/telephoto-camera-bug-phone-normal-t3876647
Having said that, it doesn't mention the yellow tint.
For information, I have the LYA-L09 on O2 UK, with 9.0.0.153.
Thanks for any help in advance!
Same for me

Mate 20 Pro Camera/Lens Problem ?

Hej guys, I was wondering if my Mate has a problem with its lenses. As far as I understand it, there are three different lenses for wide, normal and zoom. The zoom lens is supposed to be the one under the flash.
But I can't activate that lens. Yes, I can zoom 3x, 5x. But the picture still comes from the normal lens, which I found out by putting something in front of the lenses to see which one blacks out. The lens under the flash is just never used, no matter what zoom setting I choose. So it seems like the zoom images are taken with the normal lens and digital zoom instead of the zoom lens.
Am I missing something? What do I have to do to activate the zoom lens ?

Question Anyones s23 ultra selfie camera make a click/pop sound when closing/swiching out of it?

When I am in the selfie camera and i open the gallery preview on the bottom left or close the camera app i hear this click sound coming from the front facing selfie camera. Also when i look super closely after switching or closing the app, i can see the selfie camera move backwards kinda.
Im aware of the rear cameras having OIS so it moves around and makes some sound but this seems to be coming from the front facing camera. I never switched to the back cameras so they never activated.
Can you guys with the 23 ultra test this and see if you have it too, im not sure if its normal behavior.
Oof1234 said:
When I am in the selfie camera and i open the gallery preview on the bottom left or close the camera app i hear this click sound coming from the front facing selfie camera. Also when i look super closely after switching or closing the app, i can see the selfie camera move backwards kinda.
Im aware of the rear cameras having OIS so it moves around and makes some sound but this seems to be coming from the front facing camera. I never switched to the back cameras so they never activated.
Can you guys with the 23 ultra test this and see if you have it too, im not sure if its normal behavior.
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The Front Facing Camera have auto focus so there is a lens that moves forward and backward , and may be thy added OIS secretly like apple did with IP14PM
hoss_n2 said:
The main Camera have auto focus so there is a lens that moves forward and backward , and may be thy added OIS secretly like apple did with IP14PM
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Of course the camera has OIS... It's a flagship. It would be basically criminal for it NOT to have optical image stabilization. Also, the iPhone Pro Max series has had OIS since at least the 12 Pro Max (in fact Apple claimed it had dual optical image stabilization, meaning the telephoto had it as well). Not having OIS means blurry images in anything less than the utmost stable of hands when taking a photo and it's why I hated my OnePlus 9 and wished I bought the 9 Pro even though I didn't want the curved screen. Were you thinking of some other feature?
EtherealRemnant said:
Of course the camera has OIS... It's a flagship. It would be basically criminal for it NOT to have optical image stabilization. Also, the iPhone Pro Max series has had OIS since at least the 12 Pro Max (in fact Apple claimed it had dual optical image stabilization, meaning the telephoto had it as well). Not having OIS means blurry images in anything less than the utmost stable of hands when taking a photo and it's why I hated my OnePlus 9 and wished I bought the 9 Pro even though I didn't want the curved screen. Were you thinking of some other feature?
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I mean front facing camera sorry

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