Canon Will Announce a Zoom Lens Faster Than F/2.0 in Late 2026

[EOS 4 Life]

What ‘real world use’ would differ from CIPA by 8 stops?

It could just be the weight of the lens.
That is not at all a factor in the CIPA test.
Robots do not get tired.

 

[josephandrews222]

I'm aware, that's why I mentioned my experience with the old EF 70-200mm f/2.8 L, that took me to 200mm with IBIS alone, and using the adapter. I still had 2 stops of stabilisation - I always found that to be quite good, all things considered.
A RF lens would stand closer to the sensor, which would probably allow IBIS to be slightly more effective, perhaps even getting two stops at 300mm. I'd take that

I (still?!) own a decent copy of the [nonstabilized] TAMRON SP AF 70-200mm F2.8 Di LD IF Macro A001...and upon acquisition of an R5MkII body (months ago) I did a bit of (non-rigorous) testing of this lens.

The IBIS seemed to offer about two stops. To be honest, I was thrillled that a 15+ year old (adapted) third-party lens worked as well as it did on one of Canon's best new bodies.

 

[m4ndr4ke]

RF would give you better stabilization than an EF lens that does not have coordinated IS, but that has nothing to do with the flange distance.

I was talking unstabilised RF lenses. I'd gladly take a 200 to 300mm unstabilised RF lens if IBIS allowed me to drop shutter speeds to around 1/100th and, at least up to 200mm I know it does, because I paired my old EF 70-200mm f/2.8 L USM with my R6 for years and could easily get to 1/50th.
If sacrificing IS allowed new groundbreaking faster lenses, and/or more interesting zoom ranges, within these limits I'd happily accept such trade-off.

The IBIS seemed to offer about two stops. To be honest, I was thrillled that a 15+ year old (adapted) third-party lens worked as well as it did on one of Canon's best new bodies.

Exactly, I had a very nice experience too, with my old EF 70-200mm non-IS, in that regard. 1/50th was perfectly fine, and I could get some keepers at slower shutter speeds too, just not as consistently.

 

[Ph0t0]

It could just be the weight of the lens.
That is not at all a factor in the CIPA test.
Robots do not get tired.

And people get less tired when using OIS instead IBIS?
Or does OIS just work better when you are tired than IBIS?

 

[EOS 4 Life]

And people get less tired when using OIS instead IBIS?
Or does OIS just work better when you are tired than IBIS?

My point is just that the results will be different.
They will also differ between people.
That is why they use robots to get a consistent number.

 

[Ph0t0]

My point is just that the results will be different.
They will also differ between people.
That is why they use robots to get a consistent number.

So you assume that while the IBIS can compensate for more movement at certain focal lengths durring testing, the opposite is true when the lens is handheld in real world scenarios?

 

[neuroanatomist]

It could just be the weight of the lens.
That is not at all a factor in the CIPA test.
Robots do not get tired.

Lol, seriously? The weight of the 28-70/2 accounts for @riker’s experience that the combo with the R5II appeared to have no stabilization? You’ve gone out to left field on this one.