Sigma does not have a complete line program. With some few exceptions, they can only supply a couple of good standard lenses.
Why? A small company has less options. And all cameras - doesn't matter what brand - contain components bought from other companies.
But it would be bad for the users if there aren't multiple sensor manufacturers that are big enough that they can make money.
Nothing unfair. Remember that there are always two sides of a coin - Nikon have to settle for what is on sale. Canon could introduce a dual-pixel sensor all on their own - such a sensor is a great advantage if wanting to switch over to mirrorless cameras.
Sony do have patents. But the patent is to stop other companies from making copies of the sensor. Sony can still decide to sell sensors, or sell licenses to produce sensors.
But in the case of Nikon using Sony sensors - Nikon might have requested an exclusivity deal that Sony must not also ship Exmor sensors to Canon.
Sony basically have a D800.
Canon currently do not have any answer.
Nikon only has an answer as long as Sony sells them sensors at a competitive price.
Remember that Sony invested almost a billion dollars last year to increase the production capacity of sensors. The reason? Because they make money selling their sensors. And the longer it takes Canon to release a competing sensor, the more money Sony will be able to make.
There are seldom any "better" or "best". It is mostly individual needs that decides which camera is best suited to the own needs. The Nikon D800 isn't magic.
That Sony is making lots of money from selling sensors? And that Sony may even start to make lots of money from cameras in case it takes too long for Canon to be able to release a new sensor?
interesting points. cheers but cant sony make more money by forcing us to move to Sony's camera's and lenses?
Not only will we invest in there camera's but also there lenses etc?Market share in other words because nikon and canon own most of it at the moment if i am not mistaken?