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Venus Optics Laowa 25mm f/2.8 2.5-5X Ultra Macro Lens for Pentax K

BH #VE2528PK • MFR #VE2528PK
Venus Optics
Venus Optics Laowa 25mm f/2.8 2.5-5X Ultra Macro Lens for Pentax K
Key Features
  • K-Mount Lens/Full-Frame Format
  • Aperture Range: f/2.8 to f/16
  • One Extra-Low Dispersion Element
  • 2.5:1 to 5:1 Magnification
Dedicated to extreme close-up imaging, the Pentax K-mount Laowa 25mm f/2.8 2.5-5X Ultra Macro from Venus Optics is a specialized macro lens for photographing subjects at magnifications greater than life-size. Operating within a 2.5:1 to 5:1 range, this lens has a minimum focus distance of just 6.8" at the 5:1 magnification along with a comfortable 1.6" working distance. This range is benefitted by the wide-angle focal length, too, in order to achieve greater depth of field compared to long focal length macro lenses. Complementing the close-up capabilities, the optical design incorporates one extra-low dispersion element to reduce color fringing and chromatic aberrations for a high degree of clarity. Additionally, distinguishing itself from other macro lenses, this 25mm f/2.8 is characterized by its notably sleek and lightweight design for easier handling and more room to work with artificial lighting.
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Venus Optics Laowa 25mm f/2.8 Ultra Macro Overview

Dedicated to extreme close-up imaging, the Pentax K-mount Laowa 25mm f/2.8 2.5-5X Ultra Macro from Venus Optics is a specialized macro lens for photographing subjects at magnifications greater than life-size. Operating within a 2.5:1 to 5:1 range, this lens has a minimum focus distance of just 6.8" at the 5:1 magnification along with a comfortable 1.6" working distance. This range is benefitted by the wide-angle focal length, too, in order to achieve greater depth of field compared to long focal length macro lenses. Complementing the close-up capabilities, the optical design incorporates one extra-low dispersion element to reduce color fringing and chromatic aberrations for a high degree of clarity. Additionally, distinguishing itself from other macro lenses, this 25mm f/2.8 is characterized by its notably sleek and lightweight design for easier handling and more room to work with artificial lighting.

Prime 25mm f/2.8 is designed for full-frame Pentax K-mount DSLR cameras, however can also be used with APS-C models where it provides a 37.5mm equivalent focal length.
Specifically developed for macro photography, this lens is designed for use within a 2.5:1 to 5:1 magnification range for producing greater-than-life-size imagery. This lens does not offer infinity focus.
When at 5:1 magnification, the lens has a minimum focusing distance of 6.8" along with a working distance of 1.6", which affords sufficient room for illuminating your subject. At the 2.5:1 position, a minimum focusing distance of 9.2" is possible along with a working distance of 1.8".
Wide-angle design benefits the high magnification design by providing greater depth of field compared to telephoto or long lens designs.
Manual focus operation for precise control over focusing distance when working with close-up subjects.
One extra-low dispersion element greatly reduces chromatic aberrations and color fringing for improved clarity and color accuracy.
Eight-blade diaphragm contributes to a pleasing out of focus quality when using shallow depth of field.
Especially slim and lightweight physical design is easier to use handheld and offers more room for illuminating close-up subjects.

Venus Optics Laowa 25mm f/2.8 Ultra Macro Specs

Focal Length25mm
Maximum Aperturef/2.8
Minimum Aperturef/16
Lens MountPentax K
Lens Format CoverageFull-Frame
Minimum Focus Distance6.81" / 17.3 cm
Maximum Magnification5x
Macro Reproduction Ratio5:1
Optical Design8 Elements in 6 Groups
Diaphragm Blades8
Focus TypeManual Focus
Image StabilizationNo
Filter SizeNone
Dimensions (ø x L)2.56 x 3.23" / 65 x 82 mm
Weight14.11 oz / 400 g
Packaging Info
Package Weight1.7 lb
Box Dimensions (LxWxH)7 x 5 x 4.5"

Venus Optics Laowa 25mm f/2.8 Ultra Macro Reviews

A MUST Have for a Macro Photography

By Andrew
Rated 5 out of 5
Date: 2022-07-13

If you want 2.5 to 5x magnification and super sharp images this is your lens! Remember it is all manual, but that is really not an issue. On a Nikon Z it works exceptionally well with the Focus Stacking feature you have incredible depth of field images. A bargain at $500 !!! A++ with a Focus Rail (I use the NiSi or WeMacro).

Super Macro!

By Andrew
Rated 5 out of 5
Date: 2022-05-17

You MUST use it on a focus rail and you will get truly excellent images all the way to 5x. An amazing lens at an amazing price. The quality of the images is outstanding but you have to use it correctly!!

What A Surprise!

By Wouter
Rated 5 out of 5
Date: 2022-03-18

This lens doesn't let you focus, so you need to move around until it's in focus. But when you do, you see a whole different world, and in such great detail. For the price, this lens is a must if you want to shoot what the eye can't see.

Works just fine

By Joe
Rated 4 out of 5
Date: 2022-02-13

This lens takes a LOT of getting used to and does have a learning curve. Once you get the hang of it, the Laowa 25mm produces fine images at jaw breaking magnification.

Getting closer with good glass is crucial

By David
Rated 5 out of 5
Date: 2021-12-28

This lens, and the miniatures I received for Christmas will be well captured (artistic skill aside). Thank you.

Good macro lens

By Motohisa
Rated 5 out of 5
Date: 2021-12-22

I bought this lens for my son's project. I didn't expect high image quality at this price but it is actually pretty good. Working distance is around 2 and very useful. Zoom ring (I don't know the proper name) is a little tough to move. This lens does not have any manual focus ring nor auto focus, so you need to have a macro focusing rail slider and a tripod.

Fantastic lens when used in the right conditions

By Nicholas
Rated 5 out of 5
Date: 2022-05-22

I've been using the Sony 90mm macro for a couple years, paired with a Sony A7riii and have loved every minute with it. But I wanted something for super macro photos. So I paired the Laowa 25mm with a Wemacro rail (for stacking) and the results are astounding. The lens is ridiculously sharp from center to edge. The lack of manual focus is off-putting, and no IBIS makes it impossible for me to use when not on a tripod or rail. But those are minor gripes in my situation. If you love macro and can work around the challenge of this lens, I would highly recommend it!

Incredibly sharp

By Theodoros
Rated 5 out of 5
Date: 2022-05-19

Just amazed with the quality of the built and the sharpness for such low price

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Asked by: dawn
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I know Venus Optics has a CanonFE to Micro 4/3s ...

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No this is not compatible
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Asked by: Sean
The only tripod collar for Venus Optics we have is for 100mm f2.8
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Date published: 2021-01-11
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