Re: [Starlink] Sidebar to It’s the Latency, FCC: Measure it?

[David Lang <david@lang.hm>]

On Mon, 18 Mar 2024, David Lang wrote:

> On Mon, 18 Mar 2024, Sebastian Moeller wrote:
>
>>> I'll point out that professional still cameras (DSLRs and the new 
>>> mirrorless ones) also seem to have stalled with the top-of-the-line Canon 
>>> and Nikon topping out at around 20-24 mp (after selling some models that 
>>> went to 30p or so), Sony has some models at 45 mp.

corretion to my earlier post, 8k video is ~30 megapixels, 4k video is about 8 
megapixels. So cameras and lenses can easily handle 8k video (in terms of 
quality), beyond that it seems that even for professional photographers who's 
work is going to be blown up to big posters seldom bother going to higher 
resolutions.

David Lang


>> 	One of the issues is cost, Zour sensor pixels need to be large enough 
>> to capture a sufficient amount of photons in a short enough amount of time 
>> to be useful, and that puts a (soft) lower limit on how small you can make 
>> your pixels... Once your divided up your sensor are into the smalles 
>> reasonable pixel size all you can do iso is increase sensor size and hence 
>> cost... especially if I am correct in assuming that at one point you also 
>> need to increase the diameter of your optics to "feed" the sensor properly. 
>> At which point it is not only cost but also size...
>
> I'm talking about full frame high-end professional cameras (the ones where 
> the body with no lens costs $8k or so). This has been consistant for over a 
> decade. So I don't think it's a cost/manufacturing limit in place here.
>
> There are a lot of cameras made with smaller sensors in similar resolution, 
> but very little at much higher resolutions.
>
> at the low end, you will see some small, higher resolution sensors, but those 
> are for fixed lens cameras (like phones) where you use digital zoom
>
> David Lang
>