FS7: Metabones ULTRA vs. Standard Speedbooster differences

[FlacaProductions]

I can't get my head around this - what are the differences in the two? Specifically - any difference in crop factor?
I have the Ultra Nikon to E for my FS7 and a few of my Nikons vignette and I'm wondering if the "standard" model would reduce that.

(I'm sure the info is out there - lord knows I've read a lot on these adapters, but it just hasn't sunk in...)

Thanks!
Brian

 

[FrameFarmMedia]

Which lenses vignette? Do they vignette on a full frame camera? Depending on the lens it might be that on a full frame camera they have a natural vignette. I thought the difference between the Ultra and standard had to do with flaring and other light transmission characteristics not the FOV.

 

[FlacaProductions]

Nikon 17-55mm f/2.8G ED-IF AF-S DX (i just answered my own question here - it's DX, so it's not full-frame) and my Nikon 28-70 - which I don't have in front of my for specifics.

 

[Chris Langer]

Any DX Nikon lens is for cropped sensors, you want lenses without the DX on it. The 28-70 is full frame.

 

[FlacaProductions]

OK - maybe this is what's messing with my head: my DX lenses work fine (no vignetting) on my F5 via Optitek Prolock. Is there an adapter out there for Nikon to E-mount that would allow the DX lenses to work correctly?

 

[Fotojorno]

OK - maybe this is what's messing with my head: my DX lenses work fine (no vignetting) on my F5 via Optitek Prolock. Is there an adapter out there for Nikon to E-mount that would allow the DX lenses to work correctly?

Any Nikon adapter without optics in it. Metabones, Novoflex etc.

 

[FlacaProductions]

Excellent - thank you. Makes sense, I just couldn't get it to click in my head.