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I dunno if this helps, but with the noise reduction and clean sensors we have these days, Norbro is right about 1.2 vs 1.4I'm talking about the full-frame Rokinon SP/Samyang XP 35mm f/1.2 in EF mount.
I want to know about its light transmission and if it is actually half a stop brighter than the Rokinon 35mm f/1.4.
Anyone have any idea?
Have you guys seen sample shots from the Rokinon SPs? They look much sharper to me wide open than the regular series.
Besides, a half-stop is a half-stop. If I'm desperate for light, I'll take it even if it's soft.
I have the Rokinon Cine DS primes and yes, I'd rather close them down a stop (except the 50mm which is pretty darn good wide open). But I would like to set myself up for underlit situations.
The Canon 50mm f/1.2 registers a T1.5 on dxomark and the Samyang 85mm f/1.4 registers a T1.6. (They haven't tested the cine version.)
I was actually thinking about 'DS'.
'SP' looks to be a photography lens and I guess means "Special Performance" so they are probably sharper than the previous offerings.
Still think it would be a waste of money for just half a stop though...but half a stop is indeed half a stop and you know what's best for you.
OTOH, for a creative choice like James mentioned would make more sense to capture just a little bit more shallow DOF.
Still think it would be a waste of money for just half a stop though...but half a stop is indeed half a stop and you know what's best for you.
OTOH, for a creative choice like James mentioned would make more sense to capture just a little bit more shallow DOF.
I've not looked into the SP's.
Are they based on the glass of their Xeen series? Xeen is quite nice.
Sounds like you've got something really specific in mind. Kind of crazy to think you might be in one of the better cities to test out lenses at a shop or studio, and yet under the circumstances you maybe can't?
But that's what I'm thinking...if you need some light, just crank up the ISO.
With modern post and noise reduction, you can also recover like 3-4 stops later if necessary.
Totally not trying to discourage you from purchasing the lens if it's truly right for you, but sometimes I see these kind of similar questions asked, and I think to myself: "If you're finding yourself in a lot of situations where a half of a stop will be a difference maker then maybe you need a different camera or more light." (And I know more light isn't always possible - like weddings - but then post will help a lot as mentioned.)
Half a stop might sound like a lot, but not sure if you're really visualizing the difference practically.
Nevertheless, when and if B&H opens, you can check it out upstairs (it's actually listed as 'on display in store').
Really?I trust you over me on that. I'm just trying to recall why I thought they were different designs.I think the Xeens are rehoused DS lenses, probably with different coatings.
Really?I trust you over me on that. I'm just trying to recall why I thought they were different designs.
But the difference is like... |___|
It's not like f/1.2 to f/2.8 which is like... |____________________|
We are still talking about a f/1.2 and f/1.4 difference, right?
Wow, shows how important the details are in manufacturing. The DS line has always been hit or miss for many. But cool to think one could have two different variations of the same optical design. Not to mention, the DS line is cheap enough on the used market to even do a couple DIY mods to further make a versatile set of looks.Well, AFAIK, the optical design is the same but everything else is updated. This, from cinema5D:
"Aren’t these just rehoused Samyangs?
Not really. The new XEEN’s may share the same internal optical design, but new coatings have stepped it all up a notch. You’ll see noticeably less flaring and better contrast. Everything else has been built from scratch."
https://www.cinema5d.com/xeen-cinema-lenses-impression/
Also, the Sigmas are just a different coating, but they retain some of the same character of the standard set, no? That is what a rep told me at a show, anyway. And from what I could tell, the Sigma alternate coating set seemed to have modern sharpness with a lot of flare. Whereas the Canon's actually seemed softer and more visual aberrations than just reduced flare control. I could be misguided by marketing BS, but in my brief interactions, that was the sense I got as well.They sort of have a vintage-y softness but still resolve 4K and don't fall to pieces with veiling glare like old lenses because they have newer coatings. And actually I see a lot of manufacturers running away from that sharp clinical look, like Sigma with the Classic Primes.
Wow, shows how important the details are in manufacturing. The DS line has always been hit or miss for many. But cool to think one could have two different variations of the same optical design. Not to mention, the DS line is cheap enough on the used market to even do a couple DIY mods to further make a versatile set of looks.
Also, the Sigmas are just a different coating, but they retain some of the same character of the standard set, no? That is what a rep told me at a show, anyway. And from what I could tell, the Sigma alternate coating set seemed to have modern sharpness with a lot of flare. Whereas the Canon's actually seemed softer and more visual aberrations than just reduced flare control. I could be misguided by marketing BS, but in my brief interactions, that was the sense I got as well.
What I meant, is that beyond the flaring and lower contrast, the lens elements aren't further adding aberrations or softening. It is still the same sharp precise Sigma look through all that haze. Whereas the Canon's seem more diffused wide open, some good amount of chromatic aberration, and then snap into sharpness stopping down and adding a matte box and eyebrow. The Canon's are a little like Zeiss Super Speeds in a way, but I felt, and I can't confirm this based on such limited interaction, but I felt that the transition from the crazy soft wide open to the sharp stopped down look was more abrupt than the Zeiss Super Speed transition between stops. The Canon felt like two different lenses. Whereas the Zeiss SS feel like one on a gradient, or maybe 3 different looks: crazy, soft, and sharp. Canon was 2 : crazy and sharp.Yes, the Sigmas are just a different coating AFAIK. Seems hard to argue that the coating doesn't impact the sharpness...