Is it possible to increase the field of view of the ultra wide camera? - Huawei P30 Pro Guides, News, & Discussion

Samsung's s10 series has a field of view of 123 degrees, for the p30 pro, it is only 107 degrees, is FOV hardware based? or this can be changed through software?

TanOrc said:
Samsung's s10 series has a field of view of 123 degrees, for the p30 pro, it is only 107 degrees, is FOV hardware based? or this can be changed through software?
Click to expand...
Click to collapse
This is based on focal length of the lens.
Ultra wide lens is equivalent of 16mm FOV in 35mm camera, which is 107 degrees.
This cannot be changed in any way, because this is physical parameter of the lens. Only possible solutions for bigger FOV would be:
1. To stitch a panorama from more shots.
2. To use wide angle converter in front of the lens.

Related

Whats the front camera field of view angle of our g5?

I know that the two rear cameras have FOV (field of view) of 135 (the wide one) and 75..
The lg g6 has 125+71 and the front is 100 degree FOV.
Can any one say whats our lg g5's front camera FOV?
Thanks!
edit:
The Answer is 75 degrees
Here you are the view angle and other useful informations about the three cameras, according to what is reported in /system/etc/camera/camera_config.xml file.
Rear normal:
<FocalLength>4.42</FocalLength>
<FNumber>1.8</FNumber>
<TotalFocusDistance>5.25</TotalFocusDistance>
<HorizontalViewAngle>67.4</HorizontalViewAngle>
<VerticalViewAngle>41.2</VerticalViewAngle>
<MinFocusDistance>0.1</MinFocusDistance>
Rear wide:
<FocalLength>1.53</FocalLength>
<FNumber>2.4</FNumber>
<TotalFocusDistance>5.5</TotalFocusDistance>
<HorizontalViewAngle>119.3</HorizontalViewAngle>
<VerticalViewAngle>78.6</VerticalViewAngle>
<MinFocusDistance>1</MinFocusDistance>
Front:
<FocalLength>2.6</FocalLength>
<FNumber>2.0</FNumber>
<TotalFocusDistance>3.76</TotalFocusDistance>
<HorizontalViewAngle>69.3</HorizontalViewAngle>
<VerticalViewAngle>55.0</VerticalViewAngle>
<MinFocusDistance>0.1</MinFocusDistance>
Nice! Thanks for that!!
But, I don't quite understand these numbers.. they don't follow the numbers on lg website..
How does these practical numbers:
horizonral FOV: 119.3
Vertical FOV: 78.6
Match the theoretical number of 135?
Neither Maximim or square root give such number..
If any one can pure some info that would be great
Have you tried to look in your rom the same file? I'm using a rom ported from the LG G7, maybe some values have been left there from the G7.
I don't know how to calculate solid angles, but I think that 135 is the angle measured as if the diagonal of the rectangle is the width of the angle.
Checked on my stock ROM (rooted).
Same numbers..
(*) Written square root I meant diagonal calculation..
√(119.3^2+78.6^2)=143
I don't think Phytagoras can be used in this case, as we are measuring the diagonal of a rectangle projected on the part of a sphere drawed by the solid angle. Phytagoras is valid for rectangles drawed on a planar surface.
I tried to measure it myself..
heres the planning sketch:
View attachment 4641098
and here's the measuring results:
View attachment 4641088
all pictures were taken from a constant height of 98.5mm
so the results are:
H = 98.5mm
rear normal:
L=65mm, W=120mm
which brings:
vertical fov: 36.5
horizontal fov: 62.7
rear wide:
L=150mm, W=280mm
which brings:
vertical fov: 74.6
horizontal fov: 109.7
These numbers are different from both the config file and the published data on LG's website..
What went wrong? or why the numbers aren't equal?
edit:
I tried a similar measurement comparing the normal rear camera and the front camera..
They are equal so I can confirm that the front camera has field of view of 75 degrees
I don't really know. But why do you need such a precise measure for the view angle?

Main lens stabilization?

So the difference between P30 and the pro model that the main camera has optical stabilizer,but i can't see that the stabilizer is working when shooting with the main lens.
I can feel even the small hand shaking,but the stabilization is perfect on the tele lens.
Anyone noticed this too?

Fix for Focus issue on LG G8X (Front Camera)

Hello there, this is dedicated to all my photographers and videographers of LG G8x.
First things first, no matter what how many times you complaint them the problem is not fixable through software updates because front camera have fixed focus.
So i think there is no other option than this.
Case 1: (Professional phone photographers)
Guys if you are carrying a 35mm or 50mm then mount it to the front camera and zooming 1.5x is the solution for shooting 4:3 aspect ratios and only 1.2x zoom for 9:16 or higher aspect ratios.
+ Get lot of blur or shallow depth of field.
+ Can use Canon or Nikon lenses to achieve high end quality. Plus features if your lens have OIS, UV protection etc.
- Weight is a problem.
- Zooming 1.5x makes photo to loose its quality a little bit (especially in nights).
Case 2: (Cheap solution)
This is an inexpensive solution, get yourself a wide angle lens for under 200 rupees for indians and under 2 US dollars.
Buy that 3 in one lens and use the wide angle and zoom 1.2x for 4:3 aspect ratio and 1.1x for 9:16 or higher aspect ratios.
+ Very Cheap
+ Light Weight
+ Less zoom means lesser quality reduction
- No quality lenses are used, little bit lesser color reproduction.
Buy anywhere online by typing 3 in 1 lenses for phone.
Hope this would help you out, if helps don't say thanks but help me find a solution to record 1080p 240 fps video with zooming (stock camera doesn't allow zooming in that setting)
Filmic pro is not working for slow motion .
Moment pro camera doesn't work for slow motion.
Google Camera doesn't record slow motion.
Suggest me a way to do this.
Thank you for all the patience.
Arvindrockz79 said:
Hello there, this is dedicated to all my photographers and videographers of LG G8x.
First things first, no matter what how many times you complaint them the problem is not fixable through software updates because front camera have fixed focus.
So i think there is no other option than this.
Case 1: (Professional phone photographers)
Guys if you are carrying a 35mm or 50mm then mount it to the front camera and zooming 1.5x is the solution for shooting 4:3 aspect ratios and only 1.2x zoom for 9:16 or higher aspect ratios.
+ Get lot of blur or shallow depth of field.
+ Can use Canon or Nikon lenses to achieve high end quality. Plus features if your lens have OIS, UV protection etc.
- Weight is a problem.
- Zooming 1.5x makes photo to loose its quality a little bit (especially in nights).
Case 2: (Cheap solution)
This is an inexpensive solution, get yourself a wide angle lens for under 200 rupees for indians and under 2 US dollars.
Buy that 3 in one lens and use the wide angle and zoom 1.2x for 4:3 aspect ratio and 1.1x for 9:16 or higher aspect ratios.
+ Very Cheap
+ Light Weight
+ Less zoom means lesser quality reduction
- No quality lenses are used, little bit lesser color reproduction.
Buy anywhere online by typing 3 in 1 lenses for phone.
Hope this would help you out, if helps don't say thanks but help me find a solution to record 1080p 240 fps video with zooming (stock camera doesn't allow zooming in that setting)
Filmic pro is not working for slow motion .
Moment pro camera doesn't work for slow motion.
Google Camera doesn't record slow motion.
Suggest me a way to do this.
Thank you for all the patience.
Click to expand...
Click to collapse
why you actualy need to zoom ,just crope the video after recording done ,using a video editor.
our device didn't have an optical zoom even in photo mode if we zoom 8x it just uses its digital zoom.
you just click a pic at 8x and same pic at 1x then you crop the 1x pic to 8x then compare 8x pic vs croped pic. result will be same:fingers-crossed:
give me a like, i gave you a solution with best explanation
I appreciate your idea but actually thing is when you film it with no zoom and crop it later, same results i agree. But you won't get the flexibility of knowing what exactly you ate shooting, you can't see the full sized video as a reference while shooting.
1) You barely see the depth.
2) Hard to manage White balance and Exposure.
I do need some other working apps that would support this phone zooming while filming at 1080p 240fps.
Tried many of the popular apps
Google Camera, Filmic Pro, Moment pro camera, Proshot, Hedge camera 2, (MiUi 11 Camera, Oneplus Camera- Stock).
Arvindrockz79 said:
I appreciate your idea but actually thing is when you film it with no zoom and crop it later, same results i agree. But you won't get the flexibility of knowing what exactly you ate shooting, you can't see the full sized video as a reference while shooting.
1) You barely see the depth.
2) Hard to manage White balance and Exposure.
I do need some other working apps that would support this phone zooming while filming at 1080p 240fps.
Tried many of the popular apps
Google Camera, Filmic Pro, Moment pro camera, Proshot, Hedge camera 2, (MiUi 11 Camera, Oneplus Camera- Stock).
Click to expand...
Click to collapse
Filimic pro have the support of zooming in(@240fps) i tried it working:laugh:

Question Pixel 6 50MP camera sensor : Storage requirements

Wondering how much storage space will one picture take for the Google Pixel 6 take with the new 50MP camera. My current Google XL 2 using a 12MP camera would take ~5MB/picture.
The sensor uses pixel binning, so the output image is 12,5 MP.
The binned picture file size is also worryingly low. I wish they gave us more.optiions to select and store higher quality images and video.
You can always save in raw + jpeg, though I'm not entirely sure if it processes the raw image
This main 50 megspixel camera is compressing the photo so much that having 50 mp is useless. Too much compression and still using their computational technology at 12 megapixels so we aren't really seeing what the difference a 50 megapixel camera would make. File sizes should be 25 mb or higher with a jpeg at 50 megapixels. Yes I'm a photographer
treIII said:
This main 50 megspixel camera is compressing the photo so much that having 50 mp is useless. Too much compression and still using their computational technology at 12 megapixels so we aren't really seeing what the difference a 50 megapixel camera would make. File sizes should be 25 mb or higher with a jpeg at 50 megapixels. Yes I'm a photographer
Click to expand...
Click to collapse
You are right. Apart from some improvement to noise levels and colour, the details are virtually the same as my pixel 4xl.
I think the only real benefit of the 50MP sensor is when you zoom (hopefully). So when you zoom in it no longer pixel bins and you're using a native 12MP section of the sensor before you get into digital-only zoom.
WibblyW said:
I think the only real benefit of the 50MP sensor is when you zoom (hopefully). So when you zoom in it no longer pixel bins and you're using a native 12MP section of the sensor before you get into digital-only zoom.
Click to expand...
Click to collapse
I haven't found that to be the case. There is a 2x zoom that doesn't look too bad (slightly oilpaint like) and a 4x that is the optical zoom on the telephoto sensor that's very good... Another issue is the camera automatically switches between the main sensor at 4x and the telephoto 4x sensor depending on focal distance so you can't use the 4x optical to take close shots.
So what's the point of a 50MP sensor binned to 12.5MP if it always does it? Why not use a native 12.5MP sensor and get even more light in, by avoiding the gaps between the pixels used in each 'bin'?
WibblyW said:
So what's the point of a 50MP sensor binned to 12.5MP if it always does it? Why not use a native 12.5MP sensor and get even more light in, by avoiding the gaps between the pixels used in each 'bin'?
Click to expand...
Click to collapse
better low light, better noise reduction
WibblyW said:
So what's the point of a 50MP sensor binned to 12.5MP if it always does it? Why not use a native 12.5MP sensor and get even more light in, by avoiding the gaps between the pixels used in each 'bin'?
Click to expand...
Click to collapse
As above, better noise level and light input.
Definitely better pictures on the main and 4x sensor than the pixel 4 xl for sure.
I just wish we had a full size version and higher quality image export.
So using 4x small pixels in a bin is better than one big one the same size for noise/light (assuming the technologies are the same)?
Ok so that seems to be the case
Hamamatsu Learning Center: Pixel Binning
A charge-coupled device (CCD) is a semiconductor ideally suited for use in digital imaging applications as a means of transferring integrated photogenerated charge.
hamamatsu.magnet.fsu.edu
Photos would be much better in well-lit situations using 50 megapixels. Pixel binning down to 12 megapixels would be fine in low light but it's not acceptable to me to do this in well-lit situations. They need an update for the camera to decide when the situation is lit well enough to use the 50 megapixels and to decide when it's not lit well enough and use the 12.5 megapixels as they are. Because regardless of what anyone thinks s 50 megapixel photo would have much more detail than what's being done now by binning every photo. Google has to make a decision to move forward with their camera and use it to its fullest potential in which they are not doing now.
If i want a photo with 50 mpx can i just use raw ? Or it still bins?
DMart9406 said:
If i want a photo with 50 mpx can i just use raw ? Or it still bins?
Click to expand...
Click to collapse
Still a 12mp image. The file size is larger however and there's more info from the sensor to play with.
RAW images will also not be compressed in a lossy way
Maybe some gcam ports will allow us to take photos in 50 mpx...
I invite you to my post here:
https://forum.xda-developers.com/t/samsung-isocell-gn1-sensor.4359031/#post-85911883
Its a quad Bayer subpixel layout. Because it groups four of the same color pixel together it only has 12.5 mp of color data. The 50 mp claim is marketing bs. Essentially it just upscales the 12.5 mp image using the extra luma data. The sensor is also too small for 50 mp to turn out well.
The main advantage is you can do an HDR photo with one exposure. Because there's four subpixels, you can have four different exposure values with one photo. Although I don't think Google is utilizing this.
A 50mp picture would be a total waste with the lenses in these phones. The "extra" detail that a 50mp could show would be offset by the poor quality lenses (I'm speaking in general terms here - not specifically about one phone or another). These tiny phone lenses can only produce so much sharpness, clarity and detail. In other words, eventually it's the lenses that are the limiting factor in the picture quality and putting in a sensor with such high resolution that it greatly exceeds the quality of the lens will not produce better images.
By binning the sensor pixels, you get the benefit of "larger pixels" (so more light absorption) without exceeding the quality limitations of the lenses.

Question Sony Xperia 1 IV with Sirui anamorphic lens.. Useful or useless ?

Hi there ! I acquired this beautiful Sony Xperia IV smartphone to take photos and video films. I also bought an anamorphic lens from Sirui to have a cinematic rendering. When I use Cinema Pro, I realize that we film in 21:9 on the 3 lenses. When I put the anamorphic lens on the 16mm (ultra wide angle) the edges on the sides are cropped by the anamorphic lens, which is not the case on the other 2 (24mm and 85-125mm). I ask myself the question of the usefulness of such an anamorphic lens in addition, if not to have this effect of light beam that I could only have on 2 lenses out of 3... What do you think? Have you ever tested such lenses with this phone? Cordially.
Personally I think Cinema Pro is garbage because it restricts filming to a 21:9 crop of a 4:3 sensor. I've been experimenting with MotionCam and it's much better (raw 4k video at 24fps / 30fps).

Categories

Resources