The MTF Services B4 to E-Mount Adapter Super16enables putting B4-mounted lenses designed for video cameras that use an optical prism, onto your Sony E-mount single-sensor camera. The adapter only covers Super16-size sensors, and it will vignette on larger sensors unless you crop the sensor. The adapter is made from HE30 aluminum and anodized blue and black, while the E-mount is made from stainless steel. The lens adapter requires a 0.8-stop exposure compensation.

Covers Super16-Sized Sensor    HE30 Aluminum Body    Stainless Steel E-Mount    Approximately 0.8-Stop Light Loss

For best results MTF recommends using HD lenses

Related Questions and Answers

Q: 1. Will this work on my Blackmagic Ursa 4k?What if my lens does not have 2x extender?

A: Hi Ricardo, if your black magic as PL mount you sould be able to mount B4 Lens but need to use extender on it only on 2K.Need to have extender on B4 Lens if not you will have vignette. Cheers.Pascal.

Q: 2. Can I uses this adapter on FX 6 full frame sensor with out using x2 on the B4 lens?

A: 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.

Q: 3. 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.

A: It would be best to contact MTF Services directly. Here is there contact page: https://www.mtfservices.com/content/contact

Q: 4. Plan to purchase this MTF mount adaptor on my Sony PXW FS5 with the Canon HJ11ex4.7B lens, any advise of how's the quality ? and is there any other cheaper lens mount option in the market ?

A: MTF Services Ltd quality is a world standard and nothing is better made. The quality is commensurate to it's price and it will be the best long term solution for you. This adapter will allow most if not all of the zoom range of B4 2/3 lenses when used on a Sony FS5 in 2k (crop) mode. Note: you will lose 0.8 stop of light. The only other option, the FotodioX Pro Lens Mount Adapter B4 to Sony E Mount, while much cheaper, does not have a lens to expand the image. Thus the B4 lenses only work at the telephoto end with the 2X doubler engaged. Even then, they have unusable wide angle images. This is all due to the fact the B4 lenses are designed for much smaller sensors than what the FS5 has.

Q: 5. Do you have to use the doubler if your using the 2k center cut on a Sony F5 or F55?

A: You will need a B4 2/3 lens that has a 2x Extender no matter what format you are shooting at. The 2x extender is required to cover a Super 35mm Sensor.

Q: 6. Hi! What cable do I need to power the servo motor zoom an a lens with a v-lock battery? Could someone link please?

A: 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

Q: 7. What is the light loss through the adapter?

A: 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.

Q: 8. On my FS7 if I use a Non HD lens with 2x extender will the lens look sharp and be 100% useable when shooting 1920 or 720? Will it work with 4 K as well with same non HD lens?

A: An HD lens is recommended for this set-up. How sharp and usable the footage will be really will depend on the quality of the lens being used.

Q: 9. Does the power for the lens servo come thru the EF contacts, or is there a need to get an accessory for the lens cable?

A: Sorry, there is no power connection between the camera and the lens with these adapters. You get top shelf fit and finish and no play with these thoroughly professional adapters. The solution is you have to supply lens power separately. At this time the popular way is off the camera battery with the cable seen below.

Q: 10. Is it possible using it in Sony A1 camera and a Canon B4 lens ?

A: Yes it will.