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A new type of teleconverter is coming.

  
 
jgoetz4
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p.1 #1 · p.1 #1 · A new type of teleconverter is coming.


Interesting concept.
Jim
https://www.canonrumors.com/new-type-of-teleconverter-coming-from-canon-alongside-a-supertelephoto-zoom/



May 25, 2023 at 07:47 AM
Imagemaster
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p.1 #2 · p.1 #2 · A new type of teleconverter is coming.


Already discussed here:

https://www.fredmiranda.com/forum/topic/1809027/2#16248726



May 25, 2023 at 08:12 AM
CelesteForza
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p.1 #3 · p.1 #3 · A new type of teleconverter is coming.


This deserves its own thread.


May 25, 2023 at 08:19 AM
arbitrage
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p.1 #4 · p.1 #4 · A new type of teleconverter is coming.


Certainly intrigued by this. As I said in the other thread the flip in doesn't seem like it would work over a range of lenses but this could work. I still think it will be reserved for the 100-300 and 200-500 (plus future lenses) that are probably designed to work with this.

Will be interesting to see size and weight of the thing. I'd be most worried about how it shifts handling balance, I already find the RF superteles not as well balanced as the competitor's despite similar weights. As per the article, cost will be high....I'm sure close to $2K. But if it isn't too long and heavy it would be worth it.

Edited on May 25, 2023 at 08:27 AM · View previous versions



May 25, 2023 at 08:23 AM
Zenon Char
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p.1 #5 · p.1 #5 · A new type of teleconverter is coming.


Yes Canon wonít be giving that one away.


May 25, 2023 at 08:25 AM
jgoetz4
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p.1 #6 · p.1 #6 · A new type of teleconverter is coming.


arbitrage wrote:
Certainly intrigued by this. As I said in the other thread the flip in doesn't seem like it would work over a range of lenses but this could work. I still think it will be reserved for the 100-300 and 200-500 (plus future lenses) that are probably designed to work with this.

Will be interesting to see size and weight of the thing. As per the article, cost will be high....I'm sure over $1K. But if it isn't too long and heavy it would be worth it.


Considering the 1.4x & 2x are almost $1100 new, I'm sure it'll be over $1K, along with a convenience fee added in as well.
Jim

Edited on May 25, 2023 at 08:30 AM · View previous versions



May 25, 2023 at 08:28 AM
lighthound
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p.1 #7 · p.1 #7 · A new type of teleconverter is coming.


CelesteForza wrote:
This deserves its own thread.


Agreed.

If this "Non rated" rumor is true then it will be an instant hit regardless of the price tag so long as the IQ remains the same as the current RF TC's.
I just hope it will be compatible with all RF lenses both present and future and not just the new 100-300 and 200-500.

If such a device becomes reality, just imagine pairing this with the 100-300 f/2.8. You'd have a 100mm 2.8 all the way up to a 600 f/5.6 all in one clean simple package. Talk about the ultimate travel rig. Dayum!

But this rumor doesn't even have a rating yet so it's fun dreaming and...

Edited on May 25, 2023 at 08:47 AM · View previous versions



May 25, 2023 at 08:29 AM
arbitrage
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p.1 #8 · p.1 #8 · A new type of teleconverter is coming.


lighthound wrote:
Agreed.

If this "Non rated" rumor is true then it will be an instant hit regardless of the price tag so long as the IQ remains the same as the current RF TC's.
I just hope it will be compatible with all RF lenses both present and future and not just the new 100-300 and 200-500.

If such a device becomes reality, just imagine pairing this with the 100-300 f/2.8. You'd have a 100mm 2.8 all the way up to a 600 f/4 all in one clean simple package. Talk about the ultimate travel rig. Dayum!

But this rumor doesn't even
...Show more

I think it would be a 600 f/5.6, not f/4 though.



May 25, 2023 at 08:34 AM
artsupreme
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p.1 #9 · p.1 #9 · A new type of teleconverter is coming.


If the zTC is sharp across the range the 100-300/200-600 will be an amazing safari/sports lens. And the birders will love the 200-500/400-1000.


May 25, 2023 at 08:35 AM
lighthound
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p.1 #10 · p.1 #10 · A new type of teleconverter is coming.


arbitrage wrote:
I think it would be a 600 f/5.6, not f/4 though.


Correct. Lack of sufficient levels of coffee this morning.
Corrected post



May 25, 2023 at 08:45 AM
 


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arbitrage
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p.1 #11 · p.1 #11 · A new type of teleconverter is coming.


To refresh, here is the patent: https://www.canonrumors.com/patent-a-zoom-teleconverter-1-0x-1-5x-2-0x/

Looks like 4 elements with two fixed and two move to change the magnification.












May 25, 2023 at 09:51 AM
lighthound
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p.1 #12 · p.1 #12 · A new type of teleconverter is coming.


arbitrage wrote:
To refresh, here is the patent: https://www.canonrumors.com/patent-a-zoom-teleconverter-1-0x-1-5x-2-0x/

Looks like 4 elements with two fixed and two move to change the magnification.


Interesting. Without the front protrusion like the current RF TC's, this looks like it would fit all RF lenses.



May 25, 2023 at 10:02 AM
Z250SA
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p.1 #13 · p.1 #13 · A new type of teleconverter is coming.


arbitrage wrote:
To refresh, here is the patent: https://www.canonrumors.com/patent-a-zoom-teleconverter-1-0x-1-5x-2-0x/

Looks like 4 elements with two fixed and two move to change the magnification.


Looking at the RF 1.4x and 2x as well as the converter part in the RF800 and RF1200 with their rather complex lens trains, I doubt that that patent is the correct one. There will most certainly be more complex lens trains in the RF1-2x.

As for bringing 100-300mm to the 100-500, I highly doubt it. The new 100-300 and 200-500 are fully compatible with the RF 1.4x and 2x. They have room for that protruding front part, which stops the 100-500 from zooming back to the wide end.

I played with converters back in the day with my first tele lens, the not so mighty Universar 400/6.3. The back part could be removed so converters could be placed forward closer to the front lenses, empty toilet paper rolls as important parts of my design. This increased the magnification significantly. My problem in the setup was that it moved the plane of sharp focus backwards, if I recall it correctly (about 40 years).

As the physics still is the same, my after all rather ignorant guess is that the converter will be like that patent, but with far higher optical complexity. It will have a front part that moves into the main lens for greater magnification, while a back part will keep the plane of sharp focus at the correct place.

To increase the complexity and possibly size, price for sure, just to satisfy the 100-500 users? No, I doubt that. We would not be pleased with a price higher than the lens itself.



May 25, 2023 at 10:28 AM
Imagemaster
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p.1 #14 · p.1 #14 · A new type of teleconverter is coming.


CelesteForza wrote:
This deserves its own thread.


Okay, it is still a rumor and Canon has made no announcement about it.



May 25, 2023 at 10:31 AM
Sy Sez
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p.1 #15 · p.1 #15 · A new type of teleconverter is coming.


CelesteForza wrote:
This deserves its own thread.


How dare you question the Imagemaster's authority!



May 25, 2023 at 10:39 AM
Tony5787
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p.1 #16 · p.1 #16 · A new type of teleconverter is coming.


I could be wrong but I canít see this only being compatible with the 100-300 and 200-500, at the very least the RF 400 and 600 would probably be supported too. Really hoping they knock this out of the park, having this on my 400 would be the dream combo. Glad I exercised restraint and didnít jump ship to Nikon when the TC superteleís were released lol


May 25, 2023 at 11:04 AM
jgoetz4
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p.1 #17 · p.1 #17 · A new type of teleconverter is coming.


Here's a little more info.
Jim
https://blog.jholko.com/2023/05/25/may-2023-new-canon-rf-super-teleconverter-coming-soon/



May 25, 2023 at 11:28 AM
IndyFab
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p.1 #18 · p.1 #18 · A new type of teleconverter is coming.


artsupreme wrote:
If the zTC is sharp across the range the 100-300/200-600 will be an amazing safari/sports lens. And the birders will love the 200-500/400-1000.


Depends how usefull 2X will be for IQ. Seen to many posts recommending to only use the 1.4 on teles for best IQ

One can hope this combo will yeild better results, that would be great!!



May 25, 2023 at 11:32 AM
EB-1
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p.1 #19 · p.1 #19 · A new type of teleconverter is coming.


jgoetz4 wrote:
Here's a little more info.
Jim
https://blog.jholko.com/2023/05/25/may-2023-new-canon-rf-super-teleconverter-coming-soon/


"The new teleconverter will have a zoom capability set to 0X, 1.4X and 2X."

0x, seriously?

EBH



May 25, 2023 at 11:40 AM
jgoetz4
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p.1 #20 · p.1 #20 · A new type of teleconverter is coming.


EB-1 wrote:
"The new teleconverter will have a zoom capability set to 0X, 1.4X and 2X."

0x, seriously?

EBH


Must be that Common Core math
Jim




May 25, 2023 at 11:44 AM
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