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ZEISS 21-100mm T2.9-3.9 Lightweight Zoom LWZ.3 Lens (EF-Mount, Feet)

BH #ZE21100EFF • MFR #2149-223
ZEISS 21-100mm T2.9-3.9 Lightweight Zoom LWZ.3 Lens (EF-Mount, Feet)
Key Features
  • Covers Super 35mm Sensor
  • Close to 5x Zoom Range
  • Robust Cine-Style Housing
  • 294° Focus Rotation
The ZEISS Lightweight Zoom LWZ.3 Lens in EF-Mount with focus markings in feet features a 21-100mm zoom range, making it a one-size-fits-all alternative for budget-constrained productions. The lens is optimized for digital cinematography whether on a DSLR or cinema camera, and will cover image sensors sizes up to Super 35mm.
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Expected availability: 2-4 weeks
$10,400.00
$867/mo. suggested payments for 12 Mos.
with the credit card.§ 

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  • This item is noncancelable and nonreturnable.
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ZEISS LWZ.3 21-100mm T2.9 (ft) Overview

  • 1Description
  • 2Super 35mm Coverage
  • 3Focus Rotation
  • 4Interchangeable Lens Mounts
  • 5Lens Coatings

The ZEISS Lightweight Zoom LWZ.3 Lens in EF-Mount with focus markings in feet features a 21-100mm zoom range, making it a one-size-fits-all alternative for budget-constrained productions. The lens is optimized for digital cinematography whether on a DSLR or cinema camera, and will cover image sensors sizes up to Super 35mm.

Super 35mm Coverage

The lens covers up to a Super 35mm-size image sensor. This coverage also accommodates Academy 35 and APS-C formats.

Focus Rotation

The lens features nearly 300° of focus rotation that provides for extremely accurate focus pulls.

Interchangeable Lens Mounts

The interchangeable lens mount allows you to change the original mount your lens came in. Optionally available mounts are Sony E, Canon EF, Nikon F, and PL.

Lens Coatings

T* anti-reflex coating and internal light traps suppress flare for a sharp image with good contrast.

ZEISS LWZ.3 21-100mm T2.9 (ft) Specs

Focal Length21 to 100mm
Lens MountCanon EF
FormatSuper35/APS-C
Maximum ApertureT2.9 to 3.9
Minimum Aperturef/22
Horizontal Angle of ViewMFT: 45 to 9°
Super35: 61 to 14°
Minimum Focus DistanceFrom : 2.6' / 0.8 m
Optical Design22 Elements in 18 Groups
Diaphragm Blades11
Focus Rotation294°
Iris Rotation48°
Zoom Rotation100°
Zoom Ratio4.7x
Image StabilizationNo
Dimensions (W x H)4.5 x 4.5" / 114.3 x 114.3 mm
Length8.9" / 226 mm
Weight4.4 lb / 2 kg
Packaging Info
Package Weight8.5 lb
Box Dimensions (LxWxH)17.1 x 12.5 x 12.4"

ZEISS LWZ.3 21-100mm T2.9 (ft) Reviews

It is parfocal

By Scott
Rated 4 out of 5
Date: 2019-11-10

First and foremost, I want to correct the prior reviewer: I can confirm that this is a parfocal lens. I went back and forth with Zeiss support and a lens service outfit (Duclos Lenses in Van Nuys), and I learned the hard way that my camera was the problem. It turns out that all these new digital cinema cameras out there need routine maintenance (rental houses used to take care of this for us), including flange back adjustments. Once I had my camera properly calibrated, this Zeiss (and all other professional zooms) maintain focus as I zoom. So the LWZ.3 is parfocal. It is also pretty sharp and has a great image quality. The build quality is good. Breathing is virtually non existent. The only thing I find lacking about this lens are the flares, which are very plain. As with most tools, if you use them in the right way, then they’re wonderful. This lens is excellent for most applications. Just try not to flare it.

Hits a nice spot

By Stone
Rated 4 out of 5
Date: 2019-09-22

For a Cine lens at this price obviously it won’t be perfect. Aperture is not fixed but it ramps smoothly in the zoom and is very useable. It has a nice sharpness and the size is quite decent for a variety of applications. I do think it should ship by default with shims, because it does not ship as a parafocal zoom, so I’m hoping that an adjustment will remedy that. One of the main reasons I purchased was for this use.

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What do you call the screw in pin for a lens zoom

What do you call the screw in pin for a lens zoom
Asked by: David
This is called a zoom stick and screws into the barrel of the zoom ring to assist in the zoom movement.
Answered by: ZEISS Camera Lenses
Date published: 2020-03-16

Does this lens have filter threads, and if so, ...

Does this lens have filter threads, and if so, what is the diameter?
Asked by: Hugo
This lens does not have a filter thread. However it does have a 114mm front lens diameter, which is common for use with matte boxes.
Answered by: Joseph
Date published: 2020-12-15

Has anyone tried using an extender / doubler with ...

Has anyone tried using an extender / doubler with this lens (EF-mount)? The Canon EF 2X III does not work (physical restraints).
Asked by: Addi
We are not aware of a 2x Extender that is compatible with this lens.
Answered by: Joseph
Date published: 2019-05-22

Is a shimming set included with the lens? Or can ...

Is a shimming set included with the lens? Or can you expect the backfocus of the EF-Mount version to accurate?
Asked by: Michael
A shimming set is not listed as part of the contents included with the lens. Manufacture number for Colored Shims ZEISS LWZ.3 (Set) is #2143-589.
Answered by: Richard
Date published: 2018-12-14

Are there any extenders (doublers) that will work ...

Are there any extenders (doublers) that will work for the LWZ.3 with an EF-mount? (the Canon EF 2X III will not work)
Asked by: Addi
ZEISS does not offer an extender for the Lightweight Zoom LWZ.3 and does not recommend a 3rd party product due to the changes in the optical performance of the lens.
Answered by: ZEISS Camera Lenses
Date published: 2019-03-18

question

Is this lens image stabilized?
Asked by: walter
This lens does not have Image Stabilization.
Answered by: Joseph P.
Date published: 2018-08-27

question

If I set the iris to a 4 will I eliminate exposure ramping?
Asked by: John T.
No,never,the ramping is feature of the lens and it ramps through our the whole focal length and all aperture(t stops),this is given in Zeiss site-dr asok
Answered by: Asok K.
Date published: 2018-08-27

Given that light transmission ramps, as others ...

Given that light transmission ramps, as others have discussed, if my light meter suggests exposure at f/5.6, for example, will I have to make adjustments to the aperture, depending upon the focal length I am using for a shot?
Asked by: Hugo
The aperture of the ZEISS LWZ.3 ramps approximately 7/8 of a stop through the zoom range. If your meter is calling for an exposure setting of f/5.6, then you would not need to make any changes at the 21mm focal length, As you zoom through the range to 100mm, you would need to gradually open the aperture to f/4.2 to compensate. Since the aperture ramping is linear and it is rare to ramp through then entire zoom range during one shot, most find there is no need to adjust the aperture to compensate.
Answered by: ZEISS Camera Lenses
Date published: 2020-12-16
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