Why Canon still keeps using decade old FSI-CMOS sensor? What happened to innovation spirit?

[Zalkonian]

So I was looking for mirrorless camera that would best suit my needs and I like Canon R6 specs. But sadly I learned that Canon reason it keeps still using old sensor technology in this other full frame mirrorless camera‘s that got released recently, after 2020 and still can't find BSI-CMOS full frame camera. Tell me this is somekind of mistake mentioned in websites such dpreview.com because if this true this sounds to me like malicious planned obsolescense? Stacked CMOS also may be still using FSI-CMOS? Also was hoping that news would support pixel shift but not many do.

It is known fact that backlit CMOS sensors are more sensitive and are better f-stop in noise reduction due to lack of electrodes blocking light, also BSI design allows more complex circuitry that’s why many camera’s started using them. It isn’t somekind of groundbreaking super expensive technology and is fact used in mirrorless camera’s and phones since 2015, some of the first such sensor camera’s even date back to 2012.

By now camera industry should have been looking beyond traditional silicon sensors or at least finding ways to increase for example photosite area size since they are inefficient at light gathering, low light sensitivity is lacking, there is need to rely on big full frame sensors to get good image quality what in turn leads reliance to bulky, heavy and expensive lens. I’m happy that Canon at least released SPAD sensor camera but this technology must be mass produced to bring down cost for affordability to regular folks.

I’m waiting for company that has enough courage and respect for users to release mirrorless camera using latest available technology such quantum dot or graphene enhanced CMOS sensors as well other unconventional technologies such as metalens to make big leap forward. Then companies could just charge more instead of peddling little changing semioutdated trash that has questionable application range and is just contributing to polluting the planet.

[kvbarkley]

"Hello. Can someone explain to me what is extended or boosted ISO? I read that only native ISO matters since it's based on hardware signal amplification and that extended ISO does nothing good other than to boost sales.I want to get a Canon camera that has similar low light sensitivity to mirrorless Sony A7s camera with very high ISO of 409,600 and big pixels making it great for astrophotography and videography."

i.e., highly specialized.

[Tronhard]

Hi Keith:
I do not claim to be an expert on this, but here is my understanding.

ISO is a measure of the amplification gain applied to the sensor to make it more sensitive to the light energy being picked up.  Much like one would boost the record level of a microphone to get more volume from a quite source, or on playback of a quiet music track, turn up the amplifier volume.  That will tend to induce more noise from other sources, such as internal electrical components in the circuitry.  It is, in short, related to an electrical signal at the sensor interface level.

Extended ISO is a computational effect where algorithms manipulate the resultant signal within the processor stage, thus seeking to enhance the signal and (hopefully)screen out noise.  However at this stage the inherent noise in the signal reaching the processor is likely to be considerable in any case.  I must admit I have not gone anywhere near extended ISO because I don't need to.

I am sure others with more experience or knowledge in this area will clarify this further.

I hope this makes a start! 🙂

[kvbarkley]

I was quoting the OP from another thread!

[Tronhard]

Sorry Keith, missed that.  I didn't connect it to the OP's original vent about the Canon sensors being obsolete.

Brain fog...

[Zalkonian]

So EOS R6 Mark II doesn't have BSI-CMOS either according to Canon customer support 😞