Canon RF 100-300mm f/2.8L IS USM next from Canon

EF traditionally had both types of zoom operation.

All of the big white RF models so far are extending zooms:

RF 70-200/2.8
RF 70-200/4
RF 100-500/4.5-7.1
Yes, but those are 'not-so-big' white lenses.

I like the extending zoom on my RF 70-200/2.8, and would be fine with an extending 100-300/2.8 especially with a built-in 1.4x.
 
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I like the extending zoom on my RF 70-200/2.8, and would be fine with an extending 100-300/2.8 especially with a built-in 1.4x.

With my 100-500, I have the zoom on the loosest setting, and usually trombone it rather than twist the ring, as I find it easier to keep the subject centred that way.

I can see valid arguments for internal zooms and for extending types, and I wonder if it would have been possible to use a TC all the way down to 100mm if Canon had adopted an internal zoom design.
 
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Yes, but those are 'not-so-big' white lenses.

I like the extending zoom on my RF 70-200/2.8, and would be fine with an extending 100-300/2.8 especially with a built-in 1.4x.
The RF 70-200/2.8 is my favourite major-change lens. To me, the size and weight difference over the EF is very real, and well-worth the telescoping action. Probably the RF70-200/4 is a huge improvement in usability too, but I've never shot with it.

I like it even better than the RF100-500 vs the EF100-400.
 
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It would be amazing if this lens worked unimpeded with the RF 1.4 extender. Ten we'd have a 140-420/f4. How glorious that would be :D
Truly glorious if I could afford it and if my arms were strong enough to hand hold it for extended periods. I'm pretty happy with the RF100-500mm, although I have to stretch the ISO further than I'd like when the light is poor, as it often is when photographing wildlife.
 
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Yes, but those are 'not-so-big' white lenses.

I like the extending zoom on my RF 70-200/2.8, and would be fine with an extending 100-300/2.8 especially with a built-in 1.4x.

Precisely, the 70-200, 100-500, etc... are great, but those are small (cost and size) compared to the real superteles.

I think this would be similar in design and weight (hopefully a bit lighter) to the Nikon 120-300 f/2.8G
 
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I think that there would be a lot of disappointment/criticism if extenders couldn't be used.
That said, Canon has weathered that storm before and it prompted me to get the RF100-500mm vs the extenders I used with the EF70-200mm in the past. I haven't been disappointed with my decision so Canon increased their revenue from me

If Canon had the choice of collapsible/shorter lens (rear elements closer to the sensor) vs using extenders then hopefully the latter would prevail.
I believe that users would prefer a longer lens that takes extenders than a shorter/collapsible lens that couldn't. A built-in 1.4TC would be lush :)
 
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I think it would be an internal focus model. The space savings of a collapsible 100-300 would be at best 10-12cm, and having to manual rack that big 130mm front end would be a lot of weight to shift on the zoom rails, making it easier to break; not to mention less robust weather resistance.
A built in 1.4x TC would be ideal, but seeing how the name and price seems set, it doesn't look like that will be in the cards.
 
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Yawn. Even if this isn't another false lead - and that is highly probable given the track record lately - it is not one I would jump on. The 300 f/2.8 is one of Canon's sharpest lenses and it is unlikely a 100-300 could rival it. The zoom range is not all that practical for sports/WL except with limited applications. At $10k, I'd pass. Where is the lightweight, compact 500 f/4.5 DO?
 
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At $9,500 It's out of my league. Kind of glad I've retired, I would have really loved having this lens for indoor sports and been frustrated by the cost. I do wonder about the extender compatibility. There will be lots of whining if it either isn't compatible with extenders or if they pull a 100-500 RF on us and limit the range of the zoom.
 
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Guessing marketing told them to merge (2) long overdue needs; to counter the Sigma and Nikon 120-300 f/2.8 and to upgrade the 13 year old EF 300mm f/2.8 II design. The price just means there will be a high expectation on sharpness and focus performance. Fingers crossed Canon stopped the external zoom nonsense with the RF 70-200 f/2,8
 
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