Venus Optics Laowa 105mm f/2 Smooth Trans Focus Lens for Sony A

BH #VE10520SA • MFR #VE10520SA
Venus Optics
Venus Optics Laowa 105mm f/2 Smooth Trans Focus Lens for Sony A
Key Features
  • Sony A-Mount Lens/Full-Frame Format
  • Aperture Range: f/2 (T3.2) to f/22
  • One Apodization Element for Smooth Bokeh
  • Three Low Dispersion Elements
Designed to provide a wealth of control over out-of-focus quality and to enhance bokeh, the Laowa 105mm f/2 Smooth Trans Focus Lens from Venus Optics is a short telephoto prime designed for full-frame Sony A-mount cameras. The unique optical design incorporates an apodization (APD) element, as well as two separate diaphragms—8- and 14-blade—to provide separate adjustment over the bokeh as well as the exposure and depth of field. This APD element functions as a radially graduated neutral density filter, and as such limits the light transmission to a T-stop value of 3.2, while permitting the depth of field and selective focus qualities of a true f/2 design.
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Venus Optics Laowa 105mm f/2 Smooth Trans Foc... Overview

Designed to provide a wealth of control over out-of-focus quality and to enhance bokeh, the Laowa 105mm f/2 Smooth Trans Focus Lens from Venus Optics is a short telephoto prime designed for full-frame Sony A-mount cameras. The unique optical design incorporates an apodization (APD) element, as well as two separate diaphragms—8- and 14-blade—to provide separate adjustment over the bokeh as well as the exposure and depth of field. This APD element functions as a radially graduated neutral density filter, and as such limits the light transmission to a T-stop value of 3.2, while permitting the depth of field and selective focus qualities of a true f/2 design.

Alongside the unique attributes of the APD element, the lens also incorporates three low dispersion elements and one extra refractive index element to control chromatic aberrations and color fringing, as well as produce a great deal of overall clarity and sharpness. The lens is also characterized by its manual focus, manual aperture design, that provides a wealth of control over focus and exposure to benefit working with the APD element.

Short telephoto prime designed for full-frame Sony A-mount cameras, this lens can also be used on APS-C models where it provides a 157.5mm equivalent focal length.
Optical design incorporates an apodization element that helps to improve the quality of bokeh. This element, which resembles a radially graduated ND filter that tapers from clear in the center to more dense around the edges, produces more circular out-of-focus highlights for more pleasing selective focus and shallow depth of field effects.
To control the effect of the apodization element, two separate diaphragms are incorporated in the lens' design: a 14-blade diaphragm that works mainly in conjunction with the APD element to control bokeh, as well as a standard 8-blade diaphragm at the rear of the lens design to control the overall light transmission and affect depth of field.
Due to the incorporation of the APD element, the lens offers an effective light transmission value of T3.2, while the f/2 designation relates mainly toward the potential for selective focus and depth of field control.
Beyond the APD element, the lens also features three low dispersion elements and one extra refractive index element, which combine to limit chromatic aberrations throughout the aperture range and contribute to a high degree of sharpness and clarity.
A manual focus design permits fine-tuned control for focusing as closely as 3' away with a maximum magnification of 0.16x.
Two manual aperture rings enable you to adjust both the exposure-affecting diaphragm as well as the APD-affecting aperture.

Venus Optics Laowa 105mm f/2 Smooth Trans Foc... Specs

Focal Length105mm
Maximum Aperturef/2
Minimum Aperturef/22
Lens MountSony A
Format CompatibilityFull-Frame
Angle of View23° 16'
Minimum Focus Distance2.95' / 90 cm
Close-Up Magnification0.16x
Optical Design11 Elements in 8 Groups
Diaphragm Blades8
Focus TypeManual Focus
Image StabilizationNo
Filter Size67 mm (Front)
Dimensions (ø x L)2.99 x 3.89" / 76 x 98.9 mm
Weight1.64 lb / 745 g
Packaging Info
Package Weight2.85 lb
Box Dimensions (LxWxH)8.6 x 5.3 x 5"
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YOUR RECENTLY VIEWED ITEMS

question

I want to know if this lens has an AE chip built-into in order to get focus confirmation as well as the use of Auto/P/A/S/M shooting modes due to the transmission of lens data to the camera? Thanks
Asked by: SISMONDA F.
No - It can only be used in full manual mode. The camera has to be set to release without lens and manual control - Allan
Answered by: Allan V.
Date published: 2020-08-20

Do the Venus Laowa lenses have hard-stops?

Do the Venus Laowa lenses have hard-stops?
Asked by: Willian
Yes, the aperture has hard stops.
Answered by: Rob
Date published: 2020-08-20

question

Does the lens need an adapter on Sony A7Rii?
Asked by: Bin L.
No adapter is needed, it is made for E mount.
Answered by: Dana G.
Date published: 2020-08-20

question

Is the E-mount version of this lens actually under 10cm long? I thought it was more like 12cm.
Asked by: Richard M.
This lens measures approx. 2.99 x 3.89 (76 x 98.9 mm).
Answered by: Heather S.
Date published: 2018-08-26

question

Does it work with focus assist on A7RII and a6500? Does it transmit data to the camera?
Asked by: Chris
1. Yes, it is easy to focus manually using focus assist etc on my A6000.2. No information is transmitted to my A6000.It produces lovely portraits, with a beautiful background.
Answered by: Michael T.
Date published: 2018-08-26

question

Does this manual focus lens have focus confirmation?
Asked by: Jonathan
I have the Canon EF version and it confirms great on my Canon bodies. I also some Sony bodies and using the MC-11 adapter, there is no focus confirmation, although focus peaking works well there. Not sure if there would be focus confirmation with the native Sony FE version of this lens. Works great on Canon though.
Answered by: Ross
Date published: 2020-08-20

question

Two questions actually:1. Does this version of the lens meter on the A7R?2. Does it autofocus on the A7R?
Asked by: Robert
It's a manual focus and manual aperture lens.
Answered by: Richard M.
Date published: 2018-08-26

question

Is this compatible with Sony a7rii?
Asked by: Anonymous
Yes it is compatible. Lars D. covers the technical details well. it is a superb focal length for portraits and for isolating the subject from the background. It does take a bit of getting used to ... the effects of the two diaphragms and manual operation, but it is very worth it.
Answered by: Michael T.
Date published: 2018-08-27
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