SKU: 88599973812

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

Sale price$30087.00 Regular price$33430.00
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Description

Venus Optics Laowa 25mm f/2.8 2.5-5X Ultra Macro Lens for Pentax KK 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 6. 8" Min. Focus, 1. 6" Working Distance Manual Focus Operation Slim Lens Barrel Design 8 Blade Diaphragm 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

  • 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
  • 6.8" Min. Focus, 1.6" Working Distance
  • Manual Focus Operation
  • Slim Lens Barrel Design
  • 8-Blade Diaphragm

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.
In the Box
Venus Optics Laowa 25mm f/2.8 2.5-5X Ultra Macro Lens for Pentax K
  • Front and Rear Lens Caps
  • Limited 3-Year Warranty
  • Venus Optics 25mm f/2.8 specs

    Performance
    Focal Length 25mm
    Aperture Maximum: f/2.8
    Minimum: f/16
    Camera Mount Type Pentax K
    Format Compatibility 35mm Film / Full-Frame Digital Sensor
    Angle of View Not Specified by Manufacturer
    Minimum Focus Distance 6.81" / 17.3 cm
    Magnification 5x
    Maximum Reproduction Ratio 1:0.2
    Optical Design 8 Elements in 6 Groups
    Diaphragm Blades 8
    Features
    Autofocus No
    Physical
    Filter Thread None
    Dimensions (DxL) Approx. 2.56 x 3.23" / 65 x 82 mm
    Weight 14.11 oz / 400 g
    Package Weight 1.7 lb
    Box Dimensions (LxWxH) 7.0 x 5.0 x 4.5"

    All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
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    SKU: 88599973812

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    JJ Fording
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    ★★★★★ 5
    Balls
    Size: Medium
    My dog loves chasing these balls. He seems to love the squeak! They fit the chuck it stick perfectly, and are great replacements for the originals that came with the stick.
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    Reviewed in the United States on February 7, 2026
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    Steve just Steve
    Massapequa, US
    ★★★★★ 5
    Nice set of balls
    Size: Medium
    The squeaker quickly became my dog’s favorite ball and has replaced the fuzzy tennis balls. My dog is a nonstop fetcher and these chuck it balls are durable and fun.
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    Reviewed in the United States on January 9, 2026
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    Claudia Garfield
    Houston, US
    ★★★★★ 5
    Perfect ball
    Size: Medium
    Our dog loves these!
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    Reviewed in the United States on May 26, 2026
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    Timothy john starkweather
    Natrona Heights, US
    ★★★★★ 4
    Soild
    Size: Medium
    The orange and blue ball is perfect. Once start taken because the because the blue noisy one was a little to easy for my dog to start ripping pieces off. Will say most toys do not survive his chewing.
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    Reviewed in the United States on January 24, 2026
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    Christy D.
    Phoenix, US
    ★★★★★ 5
    Aggressive chewer who loves fetch approved!!
    Size: Medium, Size: Medium
    I highly recommend the Chuck-It brand in general, especially for dogs with an aggressive bite. These balls are awesome and are the most durable balls I’ve bought for my 50 lbs lab mix. He has not been able to break one of them yet and we’ve had a few of the squeaky balls for months. They are a bit pricey but worth it. The one in the pic has been used for months, lives outside and you can see it’s still in great shape.
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