Is Canon 'clearing house' on EF mounts that will be replaced with RF mounts?

I, John Sheehy wrote in post #18814375
HSS = illuminate your shutter curtains and waste your battery charge and lengthen your recycle time.

What happens with focal plane shutters and HSS when using flash in sunlight is that as you fix the Av value, and increase shutter speed, the strength of flash relative to sun increases as shutter speed increases, up to the maximum normal-sync shutter speed, and then after that, it drops about a stop in the lowest HSS speed, and then stays the same no matter how fast the shutter speed, because the open slit gets the same ratio of sun and flash regardless of shutter speed.

RDKirk wrote in post #18814348
Canon has had a vision of doing away with the flapping mirror for decades. It wasn't possible with film cameras.

I don't think it was nothing but the migration of a few (relatively) camera buyers to Sony that has encouraged Canon to develop a mirrorless camera. It is the inevitable future.

It indeed WAS possible...

• the Canon Pellix was the first one, back in the 1965
  
• Then the Canon F1 High Speed in 1972.
  
• Then later Canon had the Canon EOS RT in 1989.
  
• Then once again in the EOS 1N RS in 1995
  

Yes, leaf shutter has its merits, but implemented in-lens it drives up lens cost. And there are few leaf shutters that had top speeds above 1/500.
HSS has its own set of issues with loss of range due to spreading out the available charge in the capacitor to discharge over a prolonged period thru the flash tube in pulses.

I still have an EOS RT around here somewhere.

John Sheehy wrote in post #18814375
HSS = illuminate your shutter curtains and waste your battery charge and lengthen your recycle time.

Leaf shutters are not just for fill flash in the sun, though; it is for reduced jello effect for ambient, too.

I didn't say everyone, I said most people.

Wilt wrote in post #18814429
It indeed WAS possible...

• the Canon Pellix was the first one, back in the 1965
  
• The the Canon F1 High Speed in 1972.
  
• Then later Canon had the Canon EOOS RT in 1989.
  
• Then once again in the EOS 1N RS in 1995
  

Certainly the pellicle had its own set of issues, but in four different Canon film cameras over the past 54 the flipping mirror was gone.
And also in the Nikon F2H in 1976.

Yeah, but losing nearly a stop was a big issue.

My point was that the SLR industry knew that somehow, sooner or later, the flapping mirror had to go away. It's really a mechanical nightmare, even as mature as it has become. I bought a Fujifilm something or other about a year before I bought a 10D. As rudimentary (relative to today) as its EVR was, I could see that was the inevitable future.

The transition has begun....

Wilt wrote in post #18814432
Yes, leaf shutter has its merits, but implemented in-lens it drives up lens cost. And there are few leaf shutters that had top speeds above 1/500.
HSS has its own set of issues with loss of range due to spreading out the available charge in the capacitor to discharge over a prolonged period thru the flash tube in pulses.

With the evf most of the issues using ND's are also gone and some cameras e.g the Fuji X100 have such built in.

David Arbogast wrote in post #18810914
The main advantage of the R lenses is that they work on Canon's platform of the future. EF is in the beginning stages of becoming a legacy mount.

you never know really...i highly doubt there will be anyone shooting at the olympics using an EOS R camera...maybe they'll have two different lines for two different purposes...not everyone wants a smaller camera

DreDaze wrote in post #18814819
you never know really...i highly doubt there will be anyone shooting at the olympics using an EOS R camera...maybe they'll have two different lines for two different purposes...not everyone wants a smaller camera

Was anyone shooting the Olympics with a 5DIV? I'd be very surprised if anyone was. The R isn't a much smaller camera--it's larger than a Rebel.

(What is it with Canon USA? They renamed the Kiss as "Rebel" and they have determined that for the EOS R, the "R" means "revolution." )

Anyway, my point is that Canon always has made different lines for different purposes.

DreDaze wrote in post #18814819
you never know really...i highly doubt there will be anyone shooting at the olympics using an EOS R camera...maybe they'll have two different lines for two different purposes...not everyone wants a smaller camera

The EOS R is not a serious pro camera, so it’s not going to be at the Olympics. Future iterations of that camera likely will though. It could take 5 or 10 years or more, but eventually Canon won’t make any more EF mount cameras.

BTW, there is no reason why a mirrorless camera is required to be tiny.

RDKirk wrote in post #18815013
(What is it with Canon USA? They renamed the Kiss as "Rebel" and they have determined that for the EOS R, the "R" means "revolution." )

Anyway, my point is that Canon always has made different lines for different purposes.

Very common for Japanese companies to name things one way for home market, give different names in other markets. Way back in the 1970s was the Nissan Fairlady Z in Japan, which was the Datsun 240Z in USA and elsewhere. Even before that the Fairlady in Japan & Australia was the Datsun 1600 roadster in the USA.

In some cases, the rebadging accompanied some feature(s) omitted for patent reasons so the 'altered' product was given a different name.

David Arbogast wrote in post #18817695
The EOS R is not a serious pro camera, so it’s not going to be at the Olympics. Future iterations of that camera likely will though. It could take 5 or 10 years or more, but eventually Canon won’t make any more EF mount cameras.

BTW, there is no reason why a mirrorless camera is required to be tiny.

i basically meant there won't be a mirrorless canon at the olympics...not necessarily the R, i don't think the 1DX replacement is going to be mirrorless

tell the people making them they don't have to be tiny

DreDaze wrote in post #18817749
i basically meant there won't be a mirrorless canon at the olympics...not necessarily the R, i don't think the 1DX replacement is going to be mirrorless

tell the people making them they don't have to be tiny

Really? You’re predicting there will never be a mirrorless Canon camera at the olympics? Ok, good luck with that.

Have you seen the mirrorless Olympus OM-D E-M1X? It’s enormous and it’s just got a m43 sensor!

David Arbogast wrote in post #18817758
Really? You’re predicting there will never be a mirrorless Canon camera at the olympics? Ok, good luck with that.

Have you seen the mirrorless Olympus OM-D E-M1X? It’s enormous and it’s just got a m43 sensor!

maybe not ever...but not 2020...i don't look that far into the future