Jump to content


Photo

Cameras That Utilize B4 2/3 Lenses?


  • Please log in to reply
21 replies to this topic

#1 Macks Fiiod

Macks Fiiod
  • Basic Members
  • PipPipPipPip
  • 1474 posts
  • Director
  • Og from DC, Now in NJ

Posted 19 April 2018 - 05:01 PM

So I really love my Zeiss Digi lenses...

 

Other than the F900(and similar), F23, and URSA mini; could anyone list out some other modern options which utilize this form factor of lens?

 

Thanks!


  • 1

#2 Bruce Greene

Bruce Greene
  • Basic Members
  • PipPipPipPip
  • 597 posts
  • Cinematographer
  • Los Angeles

Posted 19 April 2018 - 06:44 PM

There is a version of the Panasonic Varicam 35 that has a camera head for b4 mount lenses.  I'm not sure that they still make it, but if they have some around they may want to get rid of them :)  Try contacting them.


  • 0

#3 Macks Fiiod

Macks Fiiod
  • Basic Members
  • PipPipPipPip
  • 1474 posts
  • Director
  • Og from DC, Now in NJ

Posted 19 April 2018 - 07:54 PM

There is a version of the Panasonic Varicam 35 that has a camera head for b4 mount lenses.  I'm not sure that they still make it, but if they have some around they may want to get rid of them :)  Try contacting them.

Sounds expensive..


  • 0

#4 Brian Drysdale

Brian Drysdale
  • Basic Members
  • PipPipPipPip
  • 5235 posts
  • Cinematographer

Posted 20 April 2018 - 02:19 AM

There are new 2/3 cameras used by broadcasters. These are different to the current fashion ion for large sensor cameras, but you can get B4 adapters for the latter. It's common for wildlife people to use the B4 zoom lenses on Super 35 cameras with an adapter,. of course, shallow DOF is of little interest to them.

 

  https://pro.sony/en_...lder-camcorders


  • 0

#5 aapo lettinen

aapo lettinen
  • Basic Members
  • PipPipPipPip
  • 1152 posts
  • Other
  • Finland

Posted 20 April 2018 - 05:12 AM

you can use the B4 lenses with M4/3 cameras with an adapter. if using larger imager than 2/3" you may need to use extender to cover the full imager. 

I for example use a B4 zoom with 1.7x extender with the GH4 for making of and doc stuff and works quite well for that


  • 0

#6 Robin R Probyn

Robin R Probyn
  • Basic Members
  • PipPipPipPip
  • 2332 posts
  • Cinematographer
  • Tokyo

Posted 20 April 2018 - 06:20 AM

You can put them on any of the APS C s35 sensor camera,s with adaptors .. but they cost a fortune.. weight a ton and eat up 2 or 3 stops or something crazy like that.. for camera,s with "centre crop". mode you can use a much smaller adaptor .. that only loses about ⅔ of a stop.. as your down to s16 size..  Detroit was shot with s16 zooms on crop mode Arri Mini..

 

But ⅔ lenses were designed for 3 chip CCD camera,s.. some people say this effects quality ..


  • 0

#7 Bruce Greene

Bruce Greene
  • Basic Members
  • PipPipPipPip
  • 597 posts
  • Cinematographer
  • Los Angeles

Posted 20 April 2018 - 09:53 AM

Sounds expensive..

Much less expensive than a new f-900 was!  And it's a 3 chip camera head made for these lenses, and might even shoot 4k.  I have a b4 mount 720p Varicam that will cost you very little if you'd like to buy it.  I also have a KiPro mini to record 10 bit ProRes for it. :)


  • 0

#8 Macks Fiiod

Macks Fiiod
  • Basic Members
  • PipPipPipPip
  • 1474 posts
  • Director
  • Og from DC, Now in NJ

Posted 20 April 2018 - 02:53 PM

Much less expensive than a new f-900 was!  And it's a 3 chip camera head made for these lenses, and might even shoot 4k.  I have a b4 mount 720p Varicam that will cost you very little if you'd like to buy it.  I also have a KiPro mini to record 10 bit ProRes for it. :)

What's the asking price on that?


  • 0

#9 aapo lettinen

aapo lettinen
  • Basic Members
  • PipPipPipPip
  • 1152 posts
  • Other
  • Finland

Posted 21 April 2018 - 04:11 AM

I use a Chinese ebay adapter with my GH4, it cost about 70 dollars or so. I would not call it super expensive :lol:

one will need to have the built in extender in the lens though or use it with a small sensor camera like the Pocket


  • 0

#10 David Hessel

David Hessel
  • Basic Members
  • PipPipPip
  • 167 posts
  • Other

Posted 21 April 2018 - 01:02 PM

Sony SRW 9000.
  • 0

#11 Macks Fiiod

Macks Fiiod
  • Basic Members
  • PipPipPipPip
  • 1474 posts
  • Director
  • Og from DC, Now in NJ

Posted 21 April 2018 - 04:51 PM

Sony SRW 9000.

What advantages does that hold over f900?


  • 0

#12 David Mullen ASC

David Mullen ASC
  • Sustaining Members
  • 20164 posts
  • Cinematographer
  • Los Angeles

Posted 21 April 2018 - 04:59 PM

Sony SRW-9000 records HDCAM-SR instead of HDCAM.  HDCAM isn't a very good tape format for origination -- it's 8-bit 3:1:1 -- and the F900 can only record Rec.709 color and gamma, whereas HDCAM-SR can record 10-bit 4:4:4, and the SRW-9000 can record a wider color gamut than Rec.709 in log gamma.  Basically the SRW-9000 is an F35 but the HDCAM-SR deck is built-in rather than attached.  It uses a single 35mm sensor rather than a prism block and three 2/3" sensors.


  • 0

#13 David Hessel

David Hessel
  • Basic Members
  • PipPipPip
  • 167 posts
  • Other

Posted 21 April 2018 - 06:37 PM

I had thought the b4 version of the 9000 used the prism and separate sensors some ones as the F23. Is that not the case?
  • 0

#14 David Hessel

David Hessel
  • Basic Members
  • PipPipPip
  • 167 posts
  • Other

Posted 21 April 2018 - 06:41 PM

I own the 9000PL which as the name suggests is a PL mount, it has the same sensor has the F35.
  • 0

#15 David Mullen ASC

David Mullen ASC
  • Sustaining Members
  • 20164 posts
  • Cinematographer
  • Los Angeles

Posted 22 April 2018 - 12:01 AM

https://www.bhphotov..._Camcorder.html

Looks like there was a 2/3” 3-sensor version.
  • 0

#16 Macks Fiiod

Macks Fiiod
  • Basic Members
  • PipPipPipPip
  • 1474 posts
  • Director
  • Og from DC, Now in NJ

Posted 24 April 2018 - 01:31 AM

Thanks for all your answers but I'd like to re-word the question.

Is there a point in seeking out any other camera in the year 2018 if I have a plan in place to acquire an URSA Mini Pro with a B4 mount?


  • 0

#17 Brian Drysdale

Brian Drysdale
  • Basic Members
  • PipPipPipPip
  • 5235 posts
  • Cinematographer

Posted 24 April 2018 - 03:19 AM

It depends on what you want to use the camera for..


  • 0

#18 Macks Fiiod

Macks Fiiod
  • Basic Members
  • PipPipPipPip
  • 1474 posts
  • Director
  • Og from DC, Now in NJ

Posted 24 April 2018 - 03:24 AM

It depends on what you want to use the camera for..

It honestly feels like the UMP covers... everything.


  • 0

#19 Robin R Probyn

Robin R Probyn
  • Basic Members
  • PipPipPipPip
  • 2332 posts
  • Cinematographer
  • Tokyo

Posted 24 April 2018 - 05:37 AM

Whats the sensor size you have to match..? if its s35m you will need an expensive heavy adaptor  .. and lose a shed load of light.. if it has centre crop .. much smaller less expensive adaptor .. and light loss..  


  • 0

#20 David Hessel

David Hessel
  • Basic Members
  • PipPipPip
  • 167 posts
  • Other

Posted 24 April 2018 - 10:29 AM

The mini pro seems to be a really good option, especially since you can get other mounts for it is well. I am assuming you realize that you will have to shoot HD or 2K on the mini to avoid vignetting. Also the mini is a single sensor and not a 3 chip like the b4 lenses where designed for. I do see that the mini b4 adapter has optics to correct for this so a concern I would have is that there might be a little bit of a quality loss. I see that BM claims that there is no IQ loss using the adapter but would recommend trying to confirm that before hand. Other than it seems like a great option a single camera that can be EF, PL and B4.


  • 0


Rig Wheels Passport

rebotnix Technologies

Glidecam

Broadcast Solutions Inc

Gamma Ray Digital Inc

Willys Widgets

Aerial Filmworks

FJS International, LLC

Technodolly

Abel Cine

CineLab

Ritter Battery

The Slider

Wooden Camera

New Pro Video - New and Used Equipment

Visual Products

Tai Audio

Media Blackout - Custom Cables and AKS

Paralinx LLC

Metropolis Post

CineTape

Wooden Camera

Abel Cine

rebotnix Technologies

CineLab

Paralinx LLC

Tai Audio

CineTape

Rig Wheels Passport

Visual Products

Metropolis Post

Broadcast Solutions Inc

Technodolly

New Pro Video - New and Used Equipment

Glidecam

Media Blackout - Custom Cables and AKS

Gamma Ray Digital Inc

Aerial Filmworks

Ritter Battery

FJS International, LLC

Willys Widgets

The Slider