Jump to content


Photo

2x anamorphic onto camcorder


  • Please log in to reply
5 replies to this topic

#1 Gordon C

Gordon C
  • Basic Members
  • PipPip
  • 27 posts
  • Other

Posted 30 July 2008 - 12:06 PM

Is it possible to fit a 2x kowa or Eiki C lens onto any of the modern consumer camcorders?

What happens if the threads is too large for the thread of the camcorder itself?
  • 0

#2 Freya Black

Freya Black
  • Basic Members
  • PipPipPipPip
  • 4161 posts
  • Other
  • Went over the edge... Central Europe

Posted 30 July 2008 - 12:25 PM

Is it possible to fit a 2x kowa or Eiki C lens onto any of the modern consumer camcorders?

What happens if the threads is too large for the thread of the camcorder itself?


If there are threads on the lens and they are too big then you can use step up filter adaptors to get to the right size. Assuming they are available! :) the problem becomes more if you end up with a really weird thread size which isn't common for filters but thats probably unlikely, you can probably step up to the right size.

You will probably need to provide some kind of support for the lens so the weight of it doesn't pull on the camcorder and damage it.

The big problem is that a 2x lens on a 4:3 DV camcorder is a fair bit wider than a 1:2.39 aspect ratio, so you get this very thin strip! :) Might be lots of fun blown up big on a video projector on a huge screen tho.

love

Freya
  • 0

#3 Saul Rodgar

Saul Rodgar
  • Basic Members
  • PipPipPipPip
  • 1682 posts
  • Cinematographer

Posted 30 July 2008 - 12:28 PM

Is it possible to fit a 2x kowa or Eiki C lens onto any of the modern consumer camcorders?


Technically yes. You will have to mask some of the sides of the image in post. If you shoot 1.33:1 you will get 2.66:1 and scope is 2.45:1. If you are shooting on camera 1.78:1 you will have to crop even more after the 2x conversion.

What happens if the threads is too large for the thread of the camcorder itself?


You mean the diameter of the camera lens and the adaptor are different? You need a step up ring, available at B&H and like stores for that. If the spacing of the threads is different, but the diameters are the same, you may need to mount the anamorphic adapter on to a bars support bracket and use lightweight rods to attach it to the camera, like a mattebox. Someone posted pictures of such a set up here, in the S-8 forum, look it up.
  • 0

#4 Leo Anthony Vale

Leo Anthony Vale
  • Basic Members
  • PipPipPipPip
  • 2010 posts
  • Other
  • Pittsburgh PA

Posted 30 July 2008 - 03:19 PM

"What happens if the threads is too large for the thread of the camcorder itself?"

If there are threads on the lens and they are too big then you can use step up filter adaptors to get to the right size. Assuming they are available! :) the problem becomes more if you end up with a really weird thread size which isn't common for filters but thats probably unlikely, you can probably step up to the right size.


A straight thread to thread adaptor won't work because, one needs to be able to orient the directionof the squeeze.

One would need, at the simplest, an adaptor which goes from thread thatscrews into the camcorders lens to a tube that the rear barrel of the anamorphot slips into and is held in place with a set screw.
I used to have some that went from a 39mm rear barrel to various series size threads.
For the Kowa 16H/8Z one will need a 52mm diameter barrel. Years ago I saw ones for the Kowa barrel to 52mm and 49mm threads. These particular ones were for Jon Hall's Omnivision, really the Kowa 16H/8Z. Finding them? Hit estate sales.
  • 0

#5 Freya Black

Freya Black
  • Basic Members
  • PipPipPipPip
  • 4161 posts
  • Other
  • Went over the edge... Central Europe

Posted 30 July 2008 - 05:35 PM

"What happens if the threads is too large for the thread of the camcorder itself?"



A straight thread to thread adaptor won't work because, one needs to be able to orient the directionof the squeeze.


You might be right as I've not used the Kowa per se but I am using a pentax anamorphic lens and I'm just using step down filter rings. I have to unscrew the lens in the filter ring slightly slightly to get the right orientation but other than that it is fine.

love

Freya
  • 0

#6 Gordon C

Gordon C
  • Basic Members
  • PipPip
  • 27 posts
  • Other

Posted 30 July 2008 - 08:04 PM

"What happens if the threads is too large for the thread of the camcorder itself?"



A straight thread to thread adaptor won't work because, one needs to be able to orient the directionof the squeeze.

One would need, at the simplest, an adaptor which goes from thread thatscrews into the camcorders lens to a tube that the rear barrel of the anamorphot slips into and is held in place with a set screw.
I used to have some that went from a 39mm rear barrel to various series size threads.
For the Kowa 16H/8Z one will need a 52mm diameter barrel. Years ago I saw ones for the Kowa barrel to 52mm and 49mm threads. These particular ones were for Jon Hall's Omnivision, really the Kowa 16H/8Z. Finding them? Hit estate sales.


Hey Leo, thanks for the info. If my camcorder only accept 30mm threads will there be cut off?
  • 0


Paralinx LLC

Abel Cine

CineTape

Technodolly

Rig Wheels Passport

Metropolis Post

Opal

Ritter Battery

FJS International, LLC

Visual Products

rebotnix Technologies

Gamma Ray Digital Inc

The Slider

Glidecam

Wooden Camera

Willys Widgets

Aerial Filmworks

CineLab

Media Blackout - Custom Cables and AKS

Tai Audio

Broadcast Solutions Inc

The Slider

CineLab

Paralinx LLC

Tai Audio

Gamma Ray Digital Inc

Opal

Glidecam

Abel Cine

CineTape

Broadcast Solutions Inc

Technodolly

Visual Products

Rig Wheels Passport

FJS International, LLC

rebotnix Technologies

Aerial Filmworks

Willys Widgets

Metropolis Post

Wooden Camera

Media Blackout - Custom Cables and AKS

Ritter Battery