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Re:iPhone camera app replaces person’s head with a leaf in p... by IgorPartola on Thursday December 30, 2021 @07:03PM (#29743183)
In theory what prevents me from using a huge lens and sensor on a DSLR or a mirrorless camera and then using the same advanced software but now running on a desktop computer or a server that is many times more powerful than a smartphone to do advanced post processing?
Re:iPhone camera app replaces person’s head with a leaf in p... by alkonaut on Thursday December 30, 2021 @07:06PM (#29743203)
Nothing at all. It’s honestly surprising that it’s not a bigger thing.

Guessing what stops you is that the Apple team that makes camera software has a budget that makes the Nikon pc app team look quite small.

Re:iPhone camera app replaces person’s head with a leaf in p... by mynameisvlad on Thursday December 30, 2021 @11:17PM (#29744838)
Cameras don't have DoF sensors which I believe the phone uses in its processing to know if there's a subject in frame.
Re:iPhone camera app replaces person’s head with a leaf in p... by emkoemko on Friday December 31, 2021 @01:01PM (#29750621)
they have that dof sensor so they can emulate dof, we get real dof.
Re:iPhone camera app replaces person’s head with a leaf in p... by mynameisvlad on Saturday January 01, 2022 @01:15AM (#29756020)
Ok, cool.

The processor still doesn't have access to said "real dof", which is the point of this comment thread.

Re:iPhone camera app replaces person’s head with a leaf in p... by 6gvONxR4sf7o on Friday December 31, 2021 @12:12PM (#29750023)
The iphone’s depth sensor is one factor. I don’t know of any lidar integrated cameras that aren’t phones, for example.

Also, because phone cameras have gotten so good, the skill floor for what you’re talking about is higher. There’s more skill involved in using software like lightroom than you might think. I’m a hobbyist photographer, and sometimes my iphone just seems more skillful than I am using my nicer camera and Lightroom.

Re:iPhone camera app replaces person’s head with a leaf in p... by jimnotgym on Thursday December 30, 2021 @07:13PM (#29743253)
Isn't that what Lightroom is for?
Re:iPhone camera app replaces person’s head with a leaf in p... by KarlKemp on Thursday December 30, 2021 @07:11PM (#29743244)
It's important to note that recent iPhones contain the same M1 chip as last year's MacBooks. They are not limited by processing power.

DSLR and mirrorless cameras have better optical properties. But they are held back by starting too late and being much worse when it comes to software. These cameras also are limited by their CPUs, which are a decade behind, and by their batteries, which are much smaller but expected to last for thousands of exposures.

Re:iPhone camera app replaces person’s head with a leaf in p... by judge2020 on Thursday December 30, 2021 @09:40PM (#29744268)
> recent iPhones contain the same M1 chip as last year's MacBooks

I mean, sure, but the A15 bionic is much more power constrained and effectively has less 'GPUs' and cores than the M1, likely because the SoC is also constrained by its size within the phone housing.

Re:iPhone camera app replaces person’s head with a leaf in p... by floatboth on Thursday December 30, 2021 @07:50PM (#29743559)
But that CPU shouldn't really do anything other than shoveling raw sensor data to flash as fast as possible. All the processing can happen on your workstation (or an iPad or whatever).
Re:iPhone camera app replaces person’s head with a leaf in p... by hughrr on Thursday December 30, 2021 @07:55PM (#29743584)
I’ve got nearly the same CPU in my iPad, MacBook and iPhone. I can do the processing on any device…
Re:iPhone camera app replaces person’s head with a leaf in p... by wtallis on Thursday December 30, 2021 @08:11PM (#29743694)
You don't have the same heatsink on all three, and not necessarily the same number of cores.
Re:iPhone camera app replaces person’s head with a leaf in p... by sundvor on Thursday December 30, 2021 @09:01PM (#29743996)
This.

My Corsair H150i Pro AIO water cooler and decent airflow case (Define 7 W/Corsair ML140s) allows me to run my Ryzen 3900XT at 4.4ghz constantly, all cores, for any kind of real life workload.

Good luck trying that with a laptop.

Re:iPhone camera app replaces person’s head with a leaf in p... by Tepix on Friday December 31, 2021 @02:43AM (#29745874)
The M1-Max at 30W seems to have tge same Geekbench 5 multicore benchmark score as the Ryzen 3900XT at 105W. Think about that. Also a better single core score. You won't be using all cores all the time.
Re:iPhone camera app replaces person’s head with a leaf in p... by hughrr on Friday December 31, 2021 @04:27AM (#29746324)
All the image processing is short bursts so this is mostly irrelevant.
Re:iPhone camera app replaces person’s head with a leaf in p... by numpad0 on Thursday December 30, 2021 @11:12PM (#29744808)
You don't want to shovel 12MP 14-bit-effective multi-frame raw pixel data along its metadata into the flash...
Re:iPhone camera app replaces person’s head with a leaf in p... by Dylan16807 on Friday December 31, 2021 @12:50AM (#29745369)
Sure I do. Or very minimally compressed.

Hell, one of the major selling points of the most recent iphones is prores recording! Dump half a second of that into a file. If that means a half-full phone can only fit a thousand photos before it's emptied, then sure I'll take it.

Re:iPhone camera app replaces person’s head with a leaf in p... by user_7832 on Thursday December 30, 2021 @08:30PM (#29743813)
> It's important to note that recent iPhones contain the same M1 chip as last year's MacBooks. They are not limited by processing power.

Correct me if I'm wrong but there's still a huge issue with silicon processing capabilities/power when it comes to image sensors (which is why camera sensors buffer images between shots). I unfortunately don't remember the context but it said something that it was (very far) from possible to actually get all the sensor data into the processor and as a result you only take a small fraction of the actual incident light/photos practically.

Re:iPhone camera app replaces person’s head with a leaf in p... by hug on Friday December 31, 2021 @02:28AM (#29745825)
This isn’t true, really: there are massive amounts of data being pushed about in a modern camera, through custom image pipelines that will do many gigabytes per second of throughout, but none of those are really bottlenecks for the sensor data per se.

Most of it ends up in a RAM-like write buffer, because SD cards, or even faster formats like CF-express, can’t keep up with the write speed of tens of 50 megapixel shots coming through every second.

There are sensor readout speed limits, which is why you don’t see cameras exceed 30 frames per second of 8k recording, but there’s no reason why you couldn’t read out the entire full-well capacity of the sensor each of those frames.

Re:iPhone camera app replaces person’s head with a leaf in p... by sciencesama on Thursday December 30, 2021 @08:44PM (#29743892)
iphones come with a15 not m1
Re:iPhone camera app replaces person’s head with a leaf in p... by perardi on Thursday December 30, 2021 @07:32PM (#29743416)
I had to check that, as these big chunky camera batteries “feel” like they should have a lot of mAH compared to a phone.

And I am wrong. Depending on the phone.

A Nikon battery: 2280 mAh.

An iPhone 13: anywhere from 2406–4352 mAH.

Yeah, that’s a way smaller power budget than a Pro iPhone, especially as you have autofocus and image stabilization systems that have to move around a lot more mass.

Re:iPhone camera app replaces person’s head with a leaf in p... by Zak on Thursday December 30, 2021 @07:39PM (#29743485)
It is not accurate to compare the capacity in Amp-hours because the Nikon EN-EL15C battery has twice the voltage (two Li-ion cells in series) of a single-cell smartphone battery.
Re:iPhone camera app replaces person’s head with a leaf in p... by wholinator2 on Thursday December 30, 2021 @08:31PM (#29743827)
As well I'd like to add the thought that the smart phone could be running all kinds of battery draining things in the background. So actual battery life depends not only mAh but how efficiently the device uses its capacity.
Re:iPhone camera app replaces person’s head with a leaf in p... by SAI_Peregrinus on Thursday December 30, 2021 @11:26PM (#29744900)
And the camera batteries are replaceable. Quickly. In the field. There are also "battery grips" that have extra battery slots in them and automatically switch between the batteries. The camera never has to sit on a charger, only a spare battery does.
Re:iPhone camera app replaces person’s head with a leaf in p... by johnmaguire on Thursday December 30, 2021 @11:07PM (#29744778)
Alternatively: I'd point out that the camera app tends to be a highly battery-draining activity on a phone. Most phone users do not leave the camera app up 24/7.

(And as a digital camera user - at least I can hot swap batteries. I miss my old cell phones that allowed for this.)

Re:iPhone camera app replaces person’s head with a leaf in p... by numpad0 on Thursday December 30, 2021 @11:09PM (#29744787)
Napkin math: 7V/2280mAh = 16Wh or equivalent to 3.7V/4300mAh (USB power banks are always measured and marked in 3.7V and mAh as unit to produce largest comparable numbers)
Re:iPhone camera app replaces person’s head with a leaf in p... by Zak on Friday December 31, 2021 @08:54AM (#29748042)
I've always thought it was odd powerbanks didn't advertise in mWh. That's a bigger number and comparable regardless of voltage.
Re:iPhone camera app replaces person’s head with a leaf in p... by Dylan16807 on Friday December 31, 2021 @12:51AM (#29745374)
If you want napkin math then just multiply 2280 by two. It'll be faster and more accurate than converting to watt hours.
Re:iPhone camera app replaces person’s head with a leaf in p... by nucleardog on Friday December 31, 2021 @02:20AM (#29745781)
Keep in mind that my Nikon really only consumes power when it's _doing_ something. I can leave my camera "on" for months at a time and come back to a fully charged battery.

The screen is off except when I'm previewing a photo. The viewfinder is physical. The metering is only on for 10-20 seconds after I wake the camera by touching the shutter release and is only displaying on a low power monochromatic LCD. Autofocus only happens while I'm holding the shutter release until it finds focus then locks.

Meanwhile the iPhone battery is powering what is, effectively, an entire laptop with a 5+" screen and cellular, wifi and bluetooth radios.

Articles I can find are quoting an iPhone taking a few hundred shots on a charge. Nikon's testing puts my camera able to take a few _thousand_ per charge. There's literally an order of magnitude difference from my Nikon's 1400mAh battery to a iPhone's 2500-4500mAh battery. Two to three times the capacity for 1/10 the pictures.

Re:iPhone camera app replaces person’s head with a leaf in p... by AuryGlenz on Friday December 31, 2021 @12:35PM (#29750290)
That comparison doesn’t work for newer mirrorless cameras. I have a DSLR and mirrorless strapped to my body at each wedding and I go through more than twice the amount of batteries in the mirrorless.

They also take a second or so to wake from standby which is super annoying for my job, so I have it set to 5 minutes. That essentially means it never goes in to standby on a wedding day.

Re:iPhone camera app replaces person’s head with a leaf in p... by emkoemko on Friday December 31, 2021 @01:03PM (#29750641)
held back? why on earth would anyone want the camera to do more then just give you a raw image file back? if you don't want to be creative then yea i guess go with a phone and let it make all the choices for you.