Canisdirus

Sony did the opposite...they made their camera bodies chameleons and encouraged third party lenses and adapters.

It was a different approach that probably only works for a start up corp.


It would indicate that Canon is not selling enough bodies to their liking...and see protecting their lens profits more important than ever.

flip1948 Loc: Hamden, CT

Tokina is not a Chinese company. They were founded in Japan in the 1950s and still remain there.

Strodav Loc: Houston, Tx

I was just complaining that Nikon was doing the same thing, then I see this:
https://www.bhphotovideo.com/c/product/1725292-REG/tamron_70_300.html
It's a "notify when available" listing for a Tamron 70-300mm f/4.5-6.3 Z mount lens. Matt Irwin picked up on it and is speculating that all the Tamron Sony E mount glass will be made in Z mount. Like the Op, Matt believes Canon is making a mistake.

Anyway, my apologies to Nikon and Tamron for slamming them and I hope Sigma joins in.

bikinkawboy Loc: north central Missouri

There are some bikes that try to look like a Harley but sounding like one is something else. I don’t know if it ever came about but years ago HD tried to copyright the distinctive Harley exhaust note produced by the 43 degree single crank pin engine. There have been numerous Japanese bikes with V twins at various cylinder angles, some with a single crank pin and others with dual crank pins set at odd angles to each other in an attempt to get the Harley sound without using the same engine configuration. One even used a 90 degree v twin and a dual pin crank that I believe was set at 47 degrees attempting to get the same sequence of exhaust pulses.

In the business world, if something sells there will be imitators. Always has been, always will be. Using a 3rd party lens is no different than buying aftermarket performance parts for your GM 350 engine. And you can literally build a 350 using nothing but aftermarket parts. I know a fellow that builds 1200hp high performance “Chevy “ engines for pulling trucks. And unless there is a random GM bolt that got thrown in, there isn’t a single genuine GM part in these clone engines. But anyone that knows engines will recognize it as a Chevy engine based upon outward appearances.

If Canon prevents 3rd party lens makers from using their “chips”, I suspect someone will design a chip that can translate between their chip at the camera’s chip. If Canon tries to prevent them from manufacturing their lens mount, first off patents eventually expire. And I doubt Canon could prevent someone from building an adapter much like the old “T” mount adapters.

John Deere had a crappy engine they put in some of their really big tractors, which failed in most instances, turning the tractor into a $300,000 paperweight. You can buy adapter plates that let you install Cat or Cummins engines in those tractors. If making an adapter violated some copyright law, I’m sure JD would have put a stop to that ages ago, which they never have.

smf85 Loc: Freeport, IL

I strongly suspect that Canon has done two things.

First - make the data communication between the camera and lens restrictive. This means that the camera always queries the lens for an ID and the lens has to respond with something acceptable if queried for an ID.

Second - decline 3rd party lens mfrs. requests for an acceptable ID allocated to them.

Without an acceptable ID the lens won’t work; copying an existing ID is a copyright violation that can be enjoined.

cjc2 Loc: Hellertown PA

Just like all the others on here that make comments with no knowledge of any facts. All of this is rumor my friend. As I said, it is what it is. Stop whining and go out and use the equipment you do have. Wait for official announcements to guess what's coming!

Strodav Loc: Houston, Tx

Here are the facts. The official announcement from Tamron was yesterday, August 30, 2022:
https://tamron-usa.com/news/2022/70300_a047_develop_aug.html

Here is Matt Irwin's take:
https://www.youtube.com/watch?v=kJMa-4jmKqE

CHG_CANON Loc: the Windy City

The UHH hen house is clucking today ...

Bill_de Loc: US

Thanks very much! It makes sense.

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Bill_de Loc: US

But, are they laying any eggs?

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cjc2 Loc: Hellertown PA

The "facts" I know as I read them on NikonRumors. Mr, Irwin's "TAKE" is something I don't care about, because it is a "take" and not a fact. You sir, followed "takes" and made them out to be absolutely true. You apologized because you were wrong. 1. I could care less about what Canon does as I shoot Nikon. That does NOT mean I don't respect Canon as a brand. 2. It is what it is! Again, please go out and use what you already own. Experience will make you better. That's what photography is about. It's not about brands and what if. Best of luck

charles brown Loc: Tennesse

PHRubin Loc: Nashville TN USA

Here is an article from Digital Camera World on it:
https://www.digitalcameraworld.com/news/canon-rf-lenses-are-being-pulled-from-sale-but-why?utm_source=SmartBrief&utm_medium=email&utm_campaign=75AC6D4F-39F0-41CB-A47C-7C5D939AC64B&utm_content=3094266E-22B5-4430-8C8E-2C1A37723D74&utm_term=d1539057-26cc-48ac-94c1-46b249136c8f

Strodav Loc: Houston, Tx

You might want to think about cutting back on the caffeine.

rmorrison1116 Loc: Near Valley Forge, Pennsylvania

I usually say, have you considered decaf.