Jump to content


Photo

Zeiss Zoom 10-100mm T3 Vignette problems


  • Please log in to reply
3 replies to this topic

#1 Eugene Sung

Eugene Sung
  • Basic Members
  • PipPip
  • 16 posts
  • Cinematographer

Posted 27 May 2007 - 01:30 PM

I have a Zeiss Zoom 10-100mm T3 (the older one with the 75mm top) mounted to an Eclair ACL regular 16mm.

The lens has a lot of vignetting, even WITHOUT any accesorries (matte box, sunshade, circular filter, etc..), the vignetting cuts into the 4/3 TV Safe marks

I'm not sure if we're just imagining things, but before I had it colimated, my friend and I didn't notice the vignetting. It was professionally colimated by Optical Electro, so I know the colimation was done right.

Also, the lens tends to breath as the vignetting happens mainly in the 25 to 50mm range and not at the widest (10mm). Does this mean there is something wrong with the lens??

Can vignetting be caused by colimation?

Also, does this particular Zeiss lens have a tendency to Vignette?

Does anyone have any solutions?

Thanks in advance
  • 0

#2 Stephen Williams

Stephen Williams
  • Sustaining Members
  • 4708 posts
  • Cinematographer
  • Europe

Posted 27 May 2007 - 01:59 PM

I have a Zeiss Zoom 10-100mm T3 (the older one with the 75mm top) mounted to an Eclair ACL regular 16mm.

The lens has a lot of vignetting, even WITHOUT any accesorries (matte box, sunshade, circular filter, etc..), the vignetting cuts into the 4/3 TV Safe marks

I'm not sure if we're just imagining things, but before I had it colimated, my friend and I didn't notice the vignetting. It was professionally colimated by Optical Electro, so I know the colimation was done right.

Also, the lens tends to breath as the vignetting happens mainly in the 25 to 50mm range and not at the widest (10mm). Does this mean there is something wrong with the lens??

Can vignetting be caused by colimation?

Also, does this particular Zeiss lens have a tendency to Vignette?

Does anyone have any solutions?

Thanks in advance


Hi,

Does it get better or worse when you stop down? I remember some issues with that lens it was worse in the middle & changed as you pulled focus.

Stephen
  • 0

#3 John Mastrogiacomo

John Mastrogiacomo
  • Sustaining Members
  • 210 posts
  • Other
  • Las Vegas, NV

Posted 27 May 2007 - 02:03 PM

I have a Zeiss Zoom 10-100mm T3 (the older one with the 75mm top) mounted to an Eclair ACL regular 16mm.

The lens has a lot of vignetting, even WITHOUT any accesorries (matte box, sunshade, circular filter, etc..), the vignetting cuts into the 4/3 TV Safe marks

I'm not sure if we're just imagining things, but before I had it colimated, my friend and I didn't notice the vignetting. It was professionally colimated by Optical Electro, so I know the colimation was done right.

Also, the lens tends to breath as the vignetting happens mainly in the 25 to 50mm range and not at the widest (10mm). Does this mean there is something wrong with the lens??

Can vignetting be caused by colimation?

Also, does this particular Zeiss lens have a tendency to Vignette?

Does anyone have any solutions?

Thanks in advance

What you see thru the viewfinder does not necessarily mean it will be that way on film. I have an ACL also (S16). With some lenses it appears to vignette next to the edges, but when I check the film, all is fine.

I would suggest you shoot some film and have it transferred and check it out. :rolleyes:
  • 0

#4 Eugene Sung

Eugene Sung
  • Basic Members
  • PipPip
  • 16 posts
  • Cinematographer

Posted 27 May 2007 - 10:12 PM

Hi,

Does it get better or worse when you stop down? I remember some issues with that lens it was worse in the middle & changed as you pulled focus.

Stephen


It does get worse when I stop down, especially at T22 the vignette is very pronounced. As yes, it does Vignette the worse from 16 to 24mm. At the widest (10mm), it's not too bad.

Also, it's mounted onto the ACL using a Arri-S adapter. Does this make a difference? It's a very nice adapter made by Optical Electro and they're definitely pro, so I'm not sure what's going on

We did a film test, but unfortunately it's Memorial Day weekend, so I have to hold my breath an extra day.

Thanks for the responses!
  • 0


Technodolly

Paralinx LLC

Willys Widgets

Rig Wheels Passport

Ritter Battery

FJS International, LLC

Aerial Filmworks

Metropolis Post

Broadcast Solutions Inc

Visual Products

CineLab

Gamma Ray Digital Inc

Glidecam

CineTape

Tai Audio

The Slider

rebotnix Technologies

Wooden Camera

Abel Cine

Media Blackout - Custom Cables and AKS

New Pro Video - New and Used Equipment

Tai Audio

Paralinx LLC

Rig Wheels Passport

rebotnix Technologies

Abel Cine

FJS International, LLC

CineTape

Media Blackout - Custom Cables and AKS

Broadcast Solutions Inc

Aerial Filmworks

Gamma Ray Digital Inc

Ritter Battery

CineLab

Willys Widgets

Technodolly

Wooden Camera

Visual Products

Glidecam

The Slider

New Pro Video - New and Used Equipment

Metropolis Post