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Key Features
- Adapts B4 lenses to Sony E and Canon EF
- Multi Layer Coated Optics
- Solid Aluminum Construction
- Includes Support Bridge
The B4 2/3" to Sony E-Mount Lens Adapter Package from MTF Services Ltd includes two lens adapters, a B4 2/3" to Canon EF adapter and a Canon EF to Sony E adapter. The kit enables the use of ENG style B4 2/3" lenses on cameras with either Sony E-mount or Canon EF mount, like the Sony NEX-FS100 or the Canon C-300. The B4/EF adapter feature multi layer coated optics, and both adapters are of solid aluminum construction. A lens support bridge for use with 15mm rod support systems is also included.
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Can I uses this adapter on FX 6 full frame sensor ...
Can I uses this adapter on FX 6 full frame sensor with out using x2 on the B4 lens?
With adapters you are going to want to work with B4 lenses that have a 2x extender. The MTF Services Ltd B4 2/3" to Sony E-Mount Lens Adapter Package can only be used on B4 2/3" lenses with built in 2X extender engaged. Also, HD B4 lenses are recommended.
Date published: 2024-03-28
Hi! What cable do I need to power the servo motor ...
Hi!
What cable do I need to power the servo motor zoom an a lens with a v-lock battery? Could someone link please?
Most B4 lenses work with 12pin power connections and you could work with this cable. FotodioX 12-Pin Hirose to D-Tap Power Cable for ENG Lens Servo Functions https://bhpho.to/2Ixd7qs
Date published: 2022-07-29
What is the light loss through the adapter?
What is the light loss through the adapter?
With The MTF Services Ltd B4 2/3" to Sony E-Mount Lens Adapter Package, this item BH #MTB4SEM has the 2x Extender. That is 2 stops of light loss.
Date published: 2020-03-24
question
will this work on my sony Fs7 camera?
When you stack the adapters in this package, it allows the use of B4 lenses on E-mount camera's such as the FS7. The added advantage is that you can also put the B4 lenses on Canon EF mount cameras as well.
Date published: 2018-08-28
How can I get just the black support bracket that ...
How can I get just the black support bracket that is included in this package? This is a specific bracket made to fit these MTF adapters.
It would be best to contact MTF Services directly.
Here is there contact page:
https://www.mtfservices.com/content/contact
Date published: 2022-08-09
question
is this adaptor crop the image from a 2/3 fujinon 4.8 lens?
Sorry, but we are not understanding what you are asking regarding a 4.8 lens. We can say that if you have a Fujinon 2/3 HD lens that has a 2x extender built in, you can now use it on a Canon or a Sony camera with a Super35 sensor. (It will not work on a full frame sensor for it will vignette.) Regarding field of view, I suggest forgetting crop factor and learn what is wide, normal and tele is for the format you are using rather than calculating the crop factor of a format you are not using. For example, in Super35, 18mm is very wide, 32mm normal and 60mm tele. If you use a typical Fujinon 8.0-128mm Quick Zoom ENG HD lens and engage the 2x extender, it now is a 16mm to 256mm lens. This will give you the focal lengths for what you need to do and much more.
Date published: 2019-02-27
question
is there a support bridge for 19mm rail instead of the 15mm rail ?
MTF does not offer this with a 19mm support bridge. You can use any of the many others available. Here is the most affordable and the next up in price and quality.
Date published: 2018-08-28
question
Do you have to use the doubler if your using the 2k center cut on a Sony F5 or F55?
I have successfully used the adapter without needing a doubler in 2K Center on my FS7. I imagine the F55 is similar. The firmware update made the 2x extender unnecessary and preserve maximum light intake.
Date published: 2018-08-28