Jump to content


Photo

Bolex Aspheron 5.5mm for Switar 10mm Lens


  • Please log in to reply
5 replies to this topic

#1 Glenn Brady

Glenn Brady
  • Basic Members
  • PipPipPipPip
  • 327 posts
  • Other

Posted 04 September 2009 - 04:16 PM

Has anyone tried using the Bolex Aspheron 5.5mm attachment made for the Kern-Paillard 10mm Switar H16 RX lens on the Kern-Paillard 5.5mm Switar H8 RX lens? I believe both lenses have a 32.0mm attachment size, so the Aspheron should fit physically. I'm wondering if it would work optically.
  • 0

#2 Miklos Konczol

Miklos Konczol

    New

  • Basic Members
  • Pip
  • 1 posts
  • Other

Posted 24 February 2012 - 07:07 AM

Has anyone tried using the Bolex Aspheron 5.5mm attachment made for the Kern-Paillard 10mm Switar H16 RX lens on the Kern-Paillard 5.5mm Switar H8 RX lens? I believe both lenses have a 32.0mm attachment size, so the Aspheron should fit physically. I'm wondering if it would work optically.



Hi,I have already ordered switar 10mm f1.6 and planing ro buy BOLEX Aspheron 5.5mm, so I will upload video or send picture if still interested in.

Best, Miki
  • 0

#3 Dom Jaeger

Dom Jaeger
  • Basic Members
  • PipPipPipPip
  • 1599 posts
  • Other
  • Melbourne, Australia

Posted 24 February 2012 - 08:18 AM

Interesting idea.. but I don't think it will work. It would have been designed for the 10mm only, factoring in it's front element to attachment thread distance among other things.

I would imagine that if it worked perfectly on the H8 RX 5.5mm as well, Bolex would have advertised the fact. So chances are it either won't work at all or you'll get some nasty edge fall off.

I have access to an Aspheron attachment but not an H8 RX 5.5mm, otherwise I'd give it a go!
  • 0

#4 Glenn Brady

Glenn Brady
  • Basic Members
  • PipPipPipPip
  • 327 posts
  • Other

Posted 24 February 2012 - 03:36 PM

. . . I don't think it will work.


I've found the Aspheron 5.5mm lens has a larger diameter thread (probably 38mm) than that of the front of the Kern-Paillard 5.5mm f/1.6 Switar H8 RX lens, so you're correct. It won't work.
  • 0

#5 Chris Millar

Chris Millar
  • Basic Members
  • PipPipPipPip
  • 1642 posts
  • Other

Posted 25 February 2012 - 08:21 PM

I made a wide angle adaptor for my 10mm from the front element off an old Sony miniDV camera zoom lens ... stuck it on with tape.

No idea of the focal length/f-stops but it cut in ok with other footage.

Just sayin...
  • 0

#6 Roberto Pirodda

Roberto Pirodda
  • Basic Members
  • PipPipPip
  • 111 posts
  • Cinematographer
  • Italy

Posted 02 March 2012 - 11:11 AM

Yes, i did it. But before i had to unscrew the metal aluminium ring (where the "switar" is stamped) to have the aspheron closest to lens, otherwise you get heavy vignetting. Moreover i had to machined a new ring : now the aspheron screw in the place of metal aluminium thread. In fact the aspheron lens and front element of switar must be cosest. Iris open not more than f2.8 otherwise you get edges out of focus. Best sharpness at f5.6. Here i can't upload pictures, but if you let me know your email i will send you.
Regards.
Roberto
  • 0


Tai Audio

Broadcast Solutions Inc

Wooden Camera

CineLab

Abel Cine

Glidecam

Media Blackout - Custom Cables and AKS

rebotnix Technologies

FJS International, LLC

Gamma Ray Digital Inc

Technodolly

Visual Products

Paralinx LLC

Opal

Metropolis Post

The Slider

Rig Wheels Passport

Willys Widgets

Ritter Battery

Aerial Filmworks

CineTape

Rig Wheels Passport

rebotnix Technologies

Tai Audio

Paralinx LLC

Abel Cine

Wooden Camera

Ritter Battery

Glidecam

Gamma Ray Digital Inc

Visual Products

Opal

Media Blackout - Custom Cables and AKS

Metropolis Post

CineTape

FJS International, LLC

CineLab

Broadcast Solutions Inc

The Slider

Aerial Filmworks

Technodolly

Willys Widgets