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Venus Optics Laowa 100mm f/2.8 2X Ultra Macro APO Lens for Pentax K

BH #VE10028PK • MFR #VE10028PK
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Venus Optics Laowa 100mm f/2.8 2X Ultra Macro APO Lens for Pentax K
Key Features
  • K-Mount Lens/Full-Frame Format
  • Aperture Range: f/2.8 to f/22
  • Two Low Dispersion Elements
  • Maximum Magnification: 2:1
Characterized by its close-focusing capabilities and apochromatic design, the Pentax K-mount Laowa 100mm f/2.8 2X Ultra Macro APO from Venus Optics is a unique and versatile short-telephoto prime. Featuring a pair of low dispersion elements, color fringing and chromatic aberrations have been virtually eliminated throughout the focusing range in order to achieve high clarity and color accuracy. The lens has a manual focus design to suit its macro capabilities, which permit working with subjects as close as 2:1 with a minimum focusing distance of 9.7". 
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Venus Optics Laowa 100mm f/2.8 2X Ultra Macro... Overview

Characterized by its close-focusing capabilities and apochromatic design, the Pentax K-mount Laowa 100mm f/2.8 2X Ultra Macro APO from Venus Optics is a unique and versatile short-telephoto prime. Featuring a pair of low dispersion elements, color fringing and chromatic aberrations have been virtually eliminated throughout the focusing range in order to achieve high clarity and color accuracy. The lens has a manual focus design to suit its macro capabilities, which permit working with subjects as close as 2:1 with a minimum focusing distance of 9.7". 

Telephoto prime is designed for full-frame Pentax K-mount cameras, however can also be used with APS-C models where it will provide a 150mm equivalent focal length.
Featuring an apochromatic designation, this lens uses a pair of low dispersion elements to effectively eliminate chromatic aberrations and color fringing for greater clarity and accurate rendering.
Greater-than-life-size 2:1 maximum magnification pairs with a 9.7" minimum focusing distance to suit working with close-up subjects.
Manual focus design, along with focus distance and depth of field scales, aid in precise focusing control.
EAN: 6940486701432

Venus Optics Laowa 100mm f/2.8 2X Ultra Macro... Specs

Focal Length
100mm
Aperture
Maximum: f/2.8
Minimum: f/22
Lens Mount
Pentax K
Lens Format Coverage
Full-Frame
Angle of View
24.4°
Minimum Focus Distance
9.7" / 24.7 cm
Magnification
2:1 Macro Reproduction Ratio
2x Magnification
Optical Design
12 Elements in 10 Groups
Focus Type
Manual Focus
Image Stabilization
No
Filter Size
67 mm (Front)
Packaging Info
Package Weight
2.645 lb
Box Dimensions (LxWxH)
9 x 5.5 x 5"

Venus Optics Laowa 100mm f/2.8 2X Ultra Macro... Reviews

Seriously, fun lens

By Joe
Rated 4 out of 5
Date: 2026-08-27

This lens, ha! It's got some quirks,i.e., the aperature is way too easy to change. But, I am having a ball. Here are some photos, I can't get any worse. The first one is a part of a lavender plant, one shot straight out of camera, it's still on the cameras memory card. No critiques please, I know how bad it is, just an example, shot freehand at 2x magnification. The second is a stacked Katydid, the third ia a single shot of a black ant using a tripod. This lens is costing me more money. Now, I've purchased a rail which I haven't used yet. I really wanted the Canon 100mm macro, but just too spendy with the tariffs.

As they say in Odesa, “the impression was spoiled.”

By Vladimir
Rated 3 out of 5
Date: 2024-12-19

I was genuinely excited about purchasing this lens and had high hopes for its capabilities. I specifically chose the EF lens for RF mounting because of its automatic aperture, which was a critical feature for my work. However, upon receiving the order, I was disappointed to discover that the lens provided has a manual aperture instead. I would greatly appreciate an explanation of how a lens with manual aperture ended up in my order and package, as this does not align with the product description I relied on when making my purchase. While I trust this was an honest mistake, I must express my disappointment, as it has impacted my confidence in this transaction. As they say in Odesa, “the impression was spoiled.” Nonetheless, I value the reputation of your marketplace and trust that this will be resolved promptly. I will, of course, return the lens and would appreciate clear instructions on how to proceed with the return process. I look forward to hearing from you soon and hope that this matter can be resolved smoothly. Thank you for your attention and understanding. Sincerely, Vladimir

See any errors on this page?

Is this a flat field lens?

Is this a flat field lens?
Asked by: Neal
No, the Venus Optics Laowa 100mm f/2.8 2X Ultra Macro APO Lens is not a flat field lens.
Answered by: Kirk R
Date published: 2023-03-07

Is this lease compatible with a Canon 80D?

Is this lease compatible with a Canon 80D?
Asked by: Mimi
Yes, the Venus Optics Laowa 100mm f/2.8 2X Ultra Macro APO Lens for Canon EF (Auto Aperture) will mount onto the Canon 80d, but does not maintain autofocus.
Answered by: Ejona G
Date published: 2024-03-28

Do you have tripod collar for this lens ?

Do you have tripod collar for this lens ?
Asked by: Krishna Prasad
I'm sorry, no.
Answered by: Rob
Date published: 2020-12-28

RF 100 macro on R6. I can focus and everything, ...

RF 100 macro on R6. I can focus and everything, but can't shoot. Just got lens today. Is it defective or am I missing a setting? I've tried in AV and M modes.
Asked by: Andrew
Venus Optics Laowa 100mm f/2.8 2X Ultra Macro APO Lens for Canon RF does not have any electronic contacts to comunicate with your Canon EOS R6 mirrorless camera. You would need to enable the camera to shoot without a lens. Please follow the steps below. Menu button - C.Fn4 - Release shutter w/o lens- ON.
Answered by: Llinelva D
Date published: 2022-08-18

Has anyone used this lens on a MFT camera using a ...

Has anyone used this lens on a MFT camera using a canon EF adapter?
Asked by: John J
Yes, in the sense that lens works well on a FujiFilm X-H1 APS-C sensor with an adapter. By inference it should work in your case. Be sure to keep you receipt in the event you wish to return it should this not be so.
Answered by: Anonymous
Date published: 2022-06-06

Will this work with a gh5 and metabones ...

Will this work with a gh5 and metabones speedbooster ultra?
Asked by: Jared
Venus Optics Laowa 100mm f/2.8 2X Ultra Macro APO Lens for Canon EF will work with a gh5 and metabones speedbooster ultra
Answered by: Shalom
Date published: 2020-05-28

Will this lens work with the Nikon Z 2x ...

Will this lens work with the Nikon Z 2x telconverter?
Asked by: WILLIAM
The Venus Optics Laowa 100mm f/2.8 2X Ultra Macro APO Lens for Nikon Z is not compatible with the Nikon Z Teleconverter TC-2x (BH #NIZTC2). Lenses from another manufacturer will not attach to a Nikon teleconverter.
Answered by: Marvin H
Date published: 2025-12-31

What is the actual length of the Sony version?

What is the actual length of the Sony version?
Asked by: Daniel
The Venus Optics Laowa 100mm f/2.8 2X Ultra Macro APO Lens for Sony E measures 6.1".
Answered by: Kirk R
Date published: 2022-10-24
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