What $$$ value re your optics zoom ?? S20 Samsung = 100x

[TassieTiger]

Am I hearing / reading the tech specs on this next gen phone that it has a 10 x optical and a 90x digital zoom on a 48mp camera???
If this is true - imagine the potential....your phone lens, with heat filter or similar - could now potentially perform pretty admirably as a scope / thermal and otherwise.
Where is ramshackle ? I need to be the first to tell him.

But seriously, that is bloody amazing if it’s even 50% true. 10 x optical zoom in a flat phone recording 48 mp? Wow.

[Sergeant Hartman]

Mate while phone cameras have improved but optical zoom is one thing they lack and digital zoom is worth jack all...(i know you know that) by not having the depth its not good enough compared to a professional SLR.

it might do better than basic 3x9 or 4x12 type scopes. But spellbinding nearly 2k on a phone to compare against a 100 buck scope might not be good.

[TassieTiger]

Mate while phone cameras have improved but optical zoom is one thing they lack and digital zoom is worth jack all...(i know you know that) by not having the depth its not good enough compared to a professional SLR.

it might do better than basic 3x9 or 4x12 type scopes. But spellbinding nearly 2k on a phone to compare against a 100 buck scope might not be good.

Digital zoom might not be worth crap at 10mp but at 48mp? That’s like comparing a 8k tv to an 1080. I personally didn’t realise how far digital has come - after watching weekend at Bernie’s on weekend...could hardly make out facial features from original video - but in 8k, can see their boogies lol.

I’m not a tech head by any stretch and I hate my bloody phone at times..from a point and shoot perspective- this might be better than we are expecting - and aren’t some of the thermal scopes digital zoom only?
I know they won’t be as good as a dedicated dlr / slr/ telephoto etc to compare is a little sarcasm - but it’s a huge step forward regardless.

[Blr243]

I have heard the term digital rifle scope before... what does it mean. Are they referring to a scope that is predominantly a camera set up instead of traditional glsss optics

[Blr243]

Does any mobile phone have an optical zoom yet. Is it possible

[TassieTiger]

I have heard the term digital rifle scope before... what does it mean. Are they referring to a scope that is predominantly a camera set up instead of traditional glsss optics

Digital “zoom” refers to being able to effectively blow up the picture do you can see detail.
With a 2mp camera - if you take a 6x4 pic, it will look decent. But blow that same picture to 20x16 and you will start to see the pixels as square dots. The detail will diminish, but when your talking about 48 mp camera, then...things change a bit. A 90x dig zoom with 48,000 pixels per square inch, means that with this cam on this phone and it’s resolution - you could blow up a picture to 12ft x 12ft (can’t be stuffed doing calculations) and it would still look ok...and at that size - you will see freckle hairs lol. Thus the basics of digital zoom.

Yes to optical zoom on phones. An optical zoom is really only a series of physical lenses that move in a manner to - well same as zoom on your scope or binos - apples latest iPhone 11 has a 2 x optical zoom - thus having a 10 x optical zoom(regardless of real world) on the incoming Samsung is pretty amazing.

The tech behind how they have managed to do this, may well filter down to other applications one day...ie lighter/smaller scopes or larger range for less $.

[Sergeant Hartman]

Yes mate, but a camera optical sensor is only as good as the light that comes in... ie the lens size and the sensor size.

Ok look at decent dslr ie a canon eos 1dx the image sensor size is 1.5" x 1" and resolution of 18mp. The pixel size is less than 0.7 um.

Now i am unsure what camera sensor the s20 uses but looking at the pictures alone i cannot see a 1inch sensor. If it's a smaller sensor it's using tricks to make up the 108mp resolution. It will no doubt be awesome, i have a note 10, and the camera for most things is just bloody good for point and shoot.

[straightshooter]

Ziad has it fairly right.
The true resolution depends on the actual physical dimensions of the CCD sensor, the speed and interpolation techniques of the associated electronics and the attributes of any associated lens system.
In the end for an optical targeting system it's the resolution and speed that counts and we ain't there yet.
Once upon a time when Hi Fi amplifier output power was important the real measure was RMS watts but then advertising took over and we had 'music power watts', 'peak power watts' and PMPO (whatever that was) amongst others all offering an inflated "watts" figure to enthral the ignorant.
BUT this time, with mobile devices, it's different?

[TassieTiger]

It’s different in that it’s a big step forward, compared to what currently exists. Apparently - it’s no SLR....

[Sergeant Hartman]

Agreed with you TT (except the sarcastic part) i have seen comparison of s10 and note10 with s20 pictures quite a noticeable difference.

[Blr243]

Thanks men