Why RF IS lenses with IBIS bodys?

Started 2 months ago | Questions thread
OP jkeijmel Forum Member • Posts: 58
Re: Why RF IS lenses with IBIS bodys?

This article is exactly why I am so puzzled. And here is the full table form the R5 review:

8.0 EV

  • 24-70mm F2.8 L IS
  • 24-105mm F4 L IS
  • 28-70mm F2 L
  • 85mm F1.2 L
  • 24-105mm F4-7.1 IS
  • 85mm F2 Macro IS

7.5 EV

  • 70-200mm F2.8 L IS

7.0 EV

  • 35mm F1.8 Macro
  • 50mm F1.2 L
  • 15-35mm F2.8 L IS

6.5 EV

  • 24-240mm F4-6.3 IS

6.0 EV

  • 100-500mm F4.5-7.1 IS

The 24-105 and 24-70 reach 8 stops with lens IS and IBIS combined, but the 28-70 2.0 reaches 8 stops with IBIS alone. Same holds for the two 85mm lenses, one lens with IS, the other without, both have 8 stops of compensation. For this focal length range from wide angle to moderate telephoto, there seems to be no benefit at all!

So why are they making these lenses (85 2.0, 24-105 & 24-70) more complex, heavy and expensive, while the actual benefit on the pro bodies cannot be measured? One could say it is because of the RP and R that did not have IBIS, sure but Canon had IBIS already in development when they released those lenses, I mean it's not that they developed an 8 stops IBIS system which is industrie leading in like one year. And by the way the 85 f2 was released after the R5/R6 came out.

What puzzels me even more is that there seem to be more wide angle zooms coming with IS. The

  • Canon RF 14-35mm f/4L IS USM
  • Canon RF 18-45mm f/4-5.6 IS STM

Okey, these are rumors, I know, but still, why would Canon make these lens systems more complex by adding IS, while IBIS alone can already provide 6-8 stops of compensation. I mean, who needs more than 5 stops of compensation on an UWA anyway?

Is this pure marketing?

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