Lens Aperture Design AKA "Outies"

[Tonygreenmike19]

After the RF 85mm F1.2L USM, the other lenses such RF 135mm F1.8, RF 24-105mm F2.8L USM Z  etc. do not have the "Innie #aperture #diaphragm"..The current line up of lenses have the outie. Yes, I love the Innies more than Outies. Apart from aesthetics, does the outie give any optical advantage in image quality versus the innies? Why Canon is making lenses with outies? Thanks

[normadel]

What in the world are you talking about?

[shadowsports]

Apparently he's bothered by the way the aperture closes, and which direction overlap occurs.  

[ebiggs1]

??????????🙄

[FloridaDrafter]

It's purely aesthetic to the user. It makes no difference in IQ or functionality which way the aperture blades are curved, be it inwards or outwards.

As to why Canon makes either type, only Canon engineers know that 🤔

Newton

[Tonygreenmike19]

Yes...aesthetically the innies look better than outies. Back in the 90s Nikon's 135 DC had the outie, but its little brother 105 DC at the same time had an innie. I am just intrigued why the manufacturers prefer one over the other. Yeah, If I could reach out to any techies at Canon it might help. Cheers.

[Tonygreenmike19]

Thanks for saving my time in explaining. Anyways, the ambiguity in my post is regretted. Cheers.

[justadude]

"Yeah, If I could reach out to any techies at Canon it might help."


If you are that curious, I suggest you do exactly that.  Call Canon Tech Support and ask them.  It might give them a laugh, and you the answer you are looking for.  https://www.usa.canon.com/support 

[normadel]

Is it April 1st?  I don't believe this is really a thing.

[Tonygreenmike19]

'I don't believe this " - which one ?