CANON 21x 7.8-164mm f/1.8 PARFOCAL B4 VIDEO LENS for MICRO 4/3 CAMERAS

CLEAN LENS IN VERY GOOD CONDITION WITH MINOR SIGNS OF USE.
 
FOR PANASONIC AG-AF100, GH1, GH2, GH3, GH4, GH5, GH6, OLYMPUS PEN, OM-D AND OTHER MICRO 4/3 MOUNT CAMERAS:
  
- Olympus OM-D E-M5, Olympus PEN E-P1, E-P2, E-PL1, E-PL1s, E-PL2, E-P3, E-PL3, E-PM1, E-PL5, E-PM2
- Panasonic Lumix G10, GF1, GF2, GF3, GF5, G2, G3, G5, GX1. GH1, GH2, GH3, GH4, GH5, GH6
- All Blackmagic Cinema Cameras with Micro Four Thirds or Canon mounts

OR - OPTIONAL ADAPTER FOR SONY E MOUNT (NEX FORMAT) CAMERASs:
SONY A7, A7II, A7III, A7IV, A7S, A7SII, A7SIII, A7R, A7RII, A7RIII, A7RIV, A7RV
SONY α3500, α5000, α5100, α6000
(enable Clear Image Zoom on these Sony Cameras to avoid vignetting)

OR - OPTIONAL ADAPTER FOR CANON DSLRs:
CANON 7D, 60D, Rebel T2i, 550D, Kiss X4, Rebel T3i, 600D, Kiss X5, Rebel T4i, 650D, Kiss X6i, Rebel T5i, 700D, Kiss X7i, Rebel SL1, 100D, Kiss X7, Rebel T3, 1100D, Kiss X50
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ALSO: Blackmagic Design EF Mount

WITH OUR DELUXE B4 TO MICRO 4/3 ADAPTER INCLUDED
Upgraded adapter with tripod mount!

— YOU'LL LOVE THE AMAZING OPTICS, SHARPNESS AND BEAUTIFUL BOKEH OF THIS LENS —

THIS PRO VIDEO LENS HAS THE FOLLOWING FEATURES:

  • A CONSTANT APERTURE OF F/1.8 !
  • EXCELLENT CINE-STYLE LENS ! TOP QUALITY PROFESSIONAL GRADE CANON OPTICS!
  • WIDE ANGLE TO TELEPHOTO ZOOM: IT HAS A 21x ZOOM RANGE OF 7.8-164mm
  • STEPLESS IRIS: VERY IMPORTANT TO MAINTAIN SMOOTH TRANSITIONS WHEN ADJUSTING EXPOSURE
  • THIS LENS IS PARFOCAL AND MAINTAINS FOCUS ACROSS THE ENTIRE ZOOM RANGE (No focus shifting [axial displacement] while zooming)
  • THE ZOOM IS SMOOTH, EVEN WHEN TURNED BY HAND, AND CAN BE POWERED FOR EVEN SMOOTHER ZOOMS
  • WEATHER-SEALED DUST AND MOISTURE RESISTANT CONSTRUCTION
  • ALSO HAS A MACRO MODE FOR SUPER CLOSE-UP IMAGING

    > BACKFOCUS IS SET FOR THE MICRO 4/3 MOUNT <
    > FOCUSES TO INFINITY AT ALL FOCAL LENGTHS <
    > BACKFOCUS CAN BE RE-ADJUSTED AT ANY TIME     <

    PROFESSIONAL VIDEO CINE QUALITY LENS - THIS IS NOT A CONSUMER LENS!

  • USE WITH 2x EXTENDER ON LENS (INCLUDED) TO PROVIDE FULL COVERAGE OF THE MICRO 4/3 SENSOR WITH NO VIGNETTING
    With the 2x extender engaged, the zoom range is 15.6-328mm and the     "35mm Equivalent" zoom range is 31-656mm.

Can also be used in 1x (without the extender) on the GH2, GH3, or GH4 in 1:1 crop mode with no image degradation:
In 1:1 crop mode the "35mm Equivalent" zoom range extends to over 1700mm

> Can also be used in 4K mode on the GH4 for super high resolution video:
In 4K crop mode the "35mm Equivalent" zoom range is approximately 40-840mm

On the GH4 it's like having THREE zoom lenses!

On the Sony E Mount cameras, Clear Image Zoom allows you to have multiple magnifications!

COMPARE TO A DSLR ZOOM SUCH AS THE CANON 24-70mm f/2.8 II lens:

  Canon 17x 7.7 - 131mm Canon 24-70mm II
Zoom Range 21x 2.9x
Powered Servo Zoom Yes No
Parfocal Yes No
Geared for Follow Focus Yes No
Constant Aperture Yes Yes
Silent Stepless Iris Yes No
Aperture Control on M4/3 Yes No
Macro Yes No
Micro 4/3 adapter included Yes No
Cost $929
 About $2000


This lens gives you a fantastic zoom range,
with a wide, constant aperture, parfocal performance, and macro, and covers Wide Angle to Super Telephoto.
When new, this broadcast quality video lens cost over ten thousand dollars!
B4 mount lenses are now in high demand for the AF100, GH1, GH2, GH3, GH4, GH4, GH5, and BlackMagic Cinema cameras to achieve the "Cine look".

PLUS - YOU CAN POWER THE ZOOM ON THIS LENS TOO!
WITH A 12v BATTERY AND HIROSE CABLE YOU CAN POWER THE ZOOM ROCKER (SERVO) ON THIS LENS ON YOUR DSLR!
—SEE MY OTHER LISTINGS FOR BATTERY AND B4 12 pin HIROSE LENS CABLE

With this parfocal lens you NEVER have to refocus after zooming! Maintains Plane of Focus While Zooming. ZOOM IN AND PULL FOCUS, YOU HAVE IT.
THIS LENS IS A CINEMATOGRAPHER'S DREAM! Works incredibly well with your digital camera's Focus Assist feature.

Provides excellent image quality in HD mode on your micro 4/3 camera including 720p, 1080i, 1080p, 4K
Geared primarily for video enthusiasts (also works for still photography!

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DELUXE adapter with tripod mount allows use of B4 lenses on
Micro Four Thirds Cameras without a complicated rail system.
This same style of adapter for Sony E Mount is also available upon request.
The tripod bracket has 1/4" and 3/8" screw mounts.

Adapter

 

Adapter is made of Duraluminum ( alloy of aluminum and titanium ) anodized black.
The adapter was manufactured with pinpoint precision ( 0.01 mm ) and high strength to support heavy video lenses.

IMPORTANT: PROVIDE SUPPORT BY THE INCLUDED ADAPTER.
NO RAIL SYSTEM IS NEEDED WITH THIS DELUXE ADAPTER.
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OPTIONAL CANON EF EOS ADAPTER ALSO AVAILABLE:

 photo B4-Canon-EF01asmaller_zps3848898f.jpg

NOTE: SOME VIGNETTING WILL OCCUR ON CANON DSLRs.
THIS CAN BE ELIMINATED BY PLACING A 1.4X TELECONVERTER BETWEEN THE ADAPTER AND CAMERA BODY.
WE RECOMMEND USING KENKO TELECONVERTERS.

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CONDITION:
Adapter: New
Lens: Used lens, fully functional in excellent+ condition as shown in photos.
Lens optics are flawless and do not contain any significant scratches, dust, fungus, etc.
Lens body is very clean with only very minor signs of use.
This listing includes the hood and a rear lens cap.

Please contact me if you have any questions. Watch my eBay listings for more DSLR video lenses and accessories.

PRIOR TO PURCHASE, BUYERS ARE REQUIRED TO READ AND AGREE TO THE FOLLOWING:

How to get the most out of a B4 Broadcast Lens

Broadcast lenses are designed for professional 2/3" video cameras with 3 CCD type sensors. When adapted to single sensor cameras, there are certain things to keep in mind to get the best results from these lenses.

B4 lenses are not consumer lenses and we expect the buyer to be educated about the use, features and functions before buying. So that you can make an informed decision about the use of this lens on your digital camera, please read and understand the following advice and disclaimer section prior to purchase. Most of your questions should be answered in this section:

  1. An adapter is required and included with your purchase. The adapter is positioned between the lens and your camera and provides the proper distance to guarantee infinity focus. The built-in 2x extender on the lens is required to cover the Micro Four Thirds sensor (avoid vignetting).

  2. There is no electronic contact or communication between the lens and camera. Therefor there is no auto focus or auto iris function. Iris and focus are performed manually on the lens itself which is standard in the professional film industry. Focus is smooth and dampened and positioned ergonomically for easy rotation. The lens has geared rings that can be controlled by standard follow focus equipment.

  3.  The zoom may be turned manually, or optionally you can power the zoom for even smoother zoom racking. We sell the 12 pin Hirose cable and batteries in our eBay store to enable you to power the zoom rocker. There is a control on the bottom of the lens that switches it between manual and power zoom.

  4.  There is an 8 pin port on the bottom of the lens to plug in a remote zoom control. We do not carry any remote zoom equipment.

  5.  You cannot correct lens aberrations such as distortion, light fall-off or CA internally in your camera as you might for a native DSLR lens from Panasonic (or Nikon, Canon, etc.) Lens aberrations can still be corrected in post production, however.

  6. Do not expect "prime lens" perfection out of a 17x parfocal zoom lens! As with any vintage or legacy lens, there may be some "character" to the lens. For example there may be some softness when used wide open. The easiest way to sharpen up the image is to simply stop down the lens! Optimum sharpness is achieved by f/5.6 and excellent sharpness continues through f/8 and f/11. Pixel peepers please note: some softness or CA esp. near the corners when wide open is normal and will not be considered a "defect" for purposes of returning the lens!

  7.  Backfocus can be set at the rear of the lens. This keeps the lens parfocal (no need to refocus when zooming). To set the back focus:
    A. Loosen the backfocus screw near the mount. B. Zoom in fully and focus. C. Zoom out to wide angle and turn the backfocus ring until best focus is achieved. Repeat B and C until lens is parfocal.

  8.  Best image quality is generally at the middle ranges of the zoom. By avoiding the extreme end of the telephoto range and the extreme wide angle end if possible, you can stay within the middle ranges which are the "sweet areas" of the lens.

  9.  We have noticed that the best image quality is achieved when the lens is used at somewhat close distances (as opposed to infinity or landscape shooting). This is because these lenses were designed for situations like interview situations where the subject is at a fairly close range.

  10. Center your subject in the frame! The center of the image is where the optimum sharpness is—use it. Good photographers/videographers place one main subject in the center of the frame to draw the viewer's eye to the subject. Don't put distracting elements in the corners of your frame. Instead, leave the corners for background / out of focus areas.

  11.  Use good lighting! All professional cameramen know that good lighting is essential to good image quality. Don't go unprepared to shoot in a dark room and expect professional results. Utilize good lighting which allows you to stop your lens down a bit for the best image sharpness.

  12.  Finally, join a user group. There are several user groups dedicated to shooting professional movies and video on today's DSLR cameras. I can't possibly cover all the finer details of setting up a DSLR rig but there are lots of people willing to provide help and advice on groups such as DVXUser and the 'B4 on M43' Facebook group on.