FS7: F Mount, Ultra, & FS7?
- Thread starter infohou
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Lenilenapi
Carbonite Member
You're talking about a Nikon adapter right?
There aren't any issues but that's because no Nikon adapters carry electronics.
Although its called an Nikon F it sounds to me like an F/G adapter as its described as having a mechanical coupling to the iris inside the Nikon lens , and a wheel, handle or some devise by which you can smoothly adjust the iris ( click less) . That's in addition to thef stop ring that may already be on the lens.
F stop #'s aren't marked but there is a scale that you can deduce your iris from.
No auto focusing ( none of the metabones do that fast enough) and unfortunately no Image stabilization.
There aren't any issues but that's because no Nikon adapters carry electronics.
Although its called an Nikon F it sounds to me like an F/G adapter as its described as having a mechanical coupling to the iris inside the Nikon lens , and a wheel, handle or some devise by which you can smoothly adjust the iris ( click less) . That's in addition to thef stop ring that may already be on the lens.
F stop #'s aren't marked but there is a scale that you can deduce your iris from.
No auto focusing ( none of the metabones do that fast enough) and unfortunately no Image stabilization.
Thanks for your reply,
For clarity, I am referring to the Metabones Speedbooster Ultra that allows F mount lenses to work on E mount cameras. My question is has anyone tried this and are there response issues with the FS7 focusing wheel on the handgrip as there are with the EF lenses and Metabones adapters.
I am aware of the other limitations. Oh, and G is not a Nikon mount, it is a type of lens that has no aperture ring.
Anybody have anything to report?
Robert
FrameFarmMedia
Veteran
The F - E mount is all mechanical. The dial won't change aperture the mechanical ring on the adapter does.
Lenilenapi
Carbonite Member
There is no focusing through the wheel, it is only mechanical focusing like you are used to . The adapter is only for the image, no other functions.
My point about about G is that you will be able to adjust the iris mechanically with this adapter . Again no electronics, nothing to do with the wheel.
My point about about G is that you will be able to adjust the iris mechanically with this adapter . Again no electronics, nothing to do with the wheel.
Erik Wittbusch
Well-known member
I tried the G-lens adapter from Metabones and it works okay.
But be aware that the throw of the iris control ring is very short.
Approx. 45 degree from open to close without real marks sothat
you never know which stop is adjusted.
But be aware that the throw of the iris control ring is very short.
Approx. 45 degree from open to close without real marks sothat
you never know which stop is adjusted.
Thanks, Is that with the Ultra? I am surprised at that.
Again, was that with the Ultra?
Thanks men, I appreciate the help
I have the Metabones F to E adapter (non-speedbooster), but it has F-stop markings 0-7. The rotation amount to go from wide open to closed is identical to the amount of throw on the iris of my Zeiss ZF 50mm f/1.4. It's probably around 45-degrees of rotation, like you said, but that's a lot more than the throw on the ring that's on the Novoflex adapter.
The difference in the rotation of the rings is because Novoflex just uses a 1:1 rotation with a pin that moves the Nikon lens aperture pin. The Metabones ring actually moves another small metal arm inside the adapter, resulting in a better ratio for adjusting the aperture. On top of that, the Metabones has markings relative to what F-stop the lens should be at, you just have to do a little bit of math to figure out what "3" means on your various lenses.