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Venus Laowa 25mm F2.8 2.5-5X Ultra Macro KAF2 Mount Review

Venus Laowa 25mm F2.8 2.5-5X Ultra Macro

Main Features

  • 25mm Focal Range
  • F2.8 Max Aperture
  • Max Format: 35mm FF
  • Pentax KAF2 Mount
  • Weight: 400g / 0.88 lb
  • Dimensions(øxL): 82mm x 65mm
  • Min Focus Distance: 0.17m
  • Max Magnification: 5x
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Venus 25mm F2.8 2.5-5X Ultra Macro Overview


Venus 25mm F2.8 2.5-5X Ultra Macro is a Fixed aperture Manual Focus (MF) Macro Prime lens with 35mm FF max sensor coverage, and it is designed to be used with KAF2 Mount cameras.

What type of photography is the Venus 25mm F2.8 2.5-5X Ultra Macro lens good for?

The type of photography that you are planning to use the Venus 25mm F2.8 2.5-5X Ultra Macro is an important decision factor. Here we have evaluated its suitability to various photography scenarios:

Photography Type Suitability
Bird/WildlifePoor
SportsPoor
PortraitAverage
TravelAverage
StreetGood
WeddingAverage
Walk AroundAverage
VloggingGood
LandscapeVery Good
MacroExcellent

Lenses in Pentax KAF2 Mount with Same Focal and Aperture Range
Model Coverage Weight Focusing Street Price
Carl Zeiss Distagon T 2,825 Lens Carl Zeiss Distagon T 2,825
Compare
35mm FF 480gr MF Amazon B&H Photo

Reasons to Buy Venus Laowa 25mm F2.8 2.5-5X Ultra Macro Lens

Here we've included a summary of the advantages and disadvantages of the Venus Laowa 25mm F2.8 2.5-5X Ultra Macro lens in a list form to help you determine whether it offers the features you need.

PROs
Aperture Ring
Full-time Manual Focusing
Covers Full-Frame Sensor
8 Diaphragm Blades for Smooth Bokeh
High Max Magnification ratio of 5x
Minimum focus distance of 0.17m / 6.7 inch
Report a correction

Buy Venus 25mm F2.8 2.5-5X Ultra Macro from Amazon or B&H PHOTO


CONs
No Weather Sealing
No Autofocus
Hood is not supplied


Lens Mount

Venus 25mm F2.8 2.5-5X Ultra Macro is compatible with cameras that have a Pentax KAF2 lens mount. Some of the latest released cameras that are compatible with the Pentax KAF2 lenses are Pentax K-3 III Monochrome, Pentax KF and Pentax K-3 III.

Venus 25mm F2.8 2.5-5X Ultra Macro is also available in Canon EF , Nikon F (DX) and Sony E mounts.


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Size, Weight and Filter Thread

Size and weight is a very important decision factor when searching for your next lens. Venus 25mm F2.8 2.5-5X Ultra Macro has a maximum diameter of 82mm and total length of 65mm. It weighs 400g / 14.1 oz.

Below you can find a scaled side-by-side image of Venus 25mm F2.8 2.5-5X Ultra Macro and HD Pentax-FA 31mm F1.8 Ltd (Pentax KAF mount) to get a better idea of how their sizes compare in real life. Check the detailed comparison of these two lenses here.

Venus 25mm F2.8 2.5-5X Ultra Macro vs HD Pentax-FA 31mm F1.8 Ltd Lens Size Comparison
Comparison image of the Venus 25mm F2.8 2.5-5X Ultra Macro and the HD Pentax-FA 31mm F1.8 Ltd Size and Weight




Focal Range

Venus 25mm F2.8 2.5-5X Ultra Macro has a fixed focal length of 25mm. When it is mounted on an APS-C sensor camera with 1.5x crop, it provides an 35mm (FF) equivalent of 37.5mm.


Maximum Magnification Ratio

Venus 25mm F2.8 2.5-5X Ultra Macro has a Max Magnification Ratio of 5x and has a minimum focusing distance of 0.17m.


Aperture

Venus 25mm F2.8 2.5-5X Ultra Macro has a max aperture of F2.8 and a minimum aperture of F16.

Optical Formula

Venus 25mm F2.8 2.5-5X Ultra Macro's optical formula consists of 8 elements in 6 groups . Special elements used in this design is 1 low-dispersion element.

Lens Hood

Venus 25mm F2.8 2.5-5X Ultra Macro doesn't come with a lens hood.

Body Colour

Venus 25mm F2.8 2.5-5X Ultra Macro is available in Black color.

Popular Comparisons of Venus 25mm F2.8 2.5-5X Ultra Macro

Here are the eight most popular comparisons of the Venus 25mm F2.8 2.5-5X Ultra Macro amongst Camera Decision readers.

Top Alternatives of Venus 25mm F2.8 2.5-5X Ultra Macro Lens
Model Coverage Weight Focusing Street Price
HD Pentax-FA 31mm F1.8 Limited Lens HD Pentax-FA 31mm F1.8 Limited
Compare
35mm FF 341 g / 0.75 lb AF Amazon B&H Photo
Carl Zeiss Distagon T 228 Lens Carl Zeiss Distagon T 228
Compare
35mm FF 520 g / 1.14 lb MF Amazon B&H Photo
HD Pentax DA 21mm F3.2 AL Limited Lens HD Pentax DA 21mm F3.2 AL Limited
Compare
APS-C / DX 134 g / 0.29 lb AF Amazon B&H Photo
Carl Zeiss Distagon T 2,825 Lens Carl Zeiss Distagon T 2,825
Compare
35mm FF 480 g / 1.06 lb MF Amazon B&H Photo
Pentax smc DA 21mm F3.2 AL Limited Lens Pentax smc DA 21mm F3.2 AL Limited
Compare
APS-C / DX 140 g / 0.31 lb AF Amazon B&H Photo
Schneider PC-Super-Angulon 28mm f2.8 Lens Schneider PC-Super-Angulon 28mm f2.8
Compare
35mm FF 565 g / 1.24 lb MF Amazon B&H Photo
Pentax smc FA 31mm F1.8 AL Limited Lens Pentax smc FA 31mm F1.8 AL Limited
Compare
35mm FF 345 g / 0.76 lb AF Amazon B&H Photo
Sigma 28mm F1.8 EX DG Aspherical Macro Lens Sigma 28mm F1.8 EX DG Aspherical Macro
Compare
35mm FF 500 g / 1.10 lb AF Amazon B&H Photo


**This post contains affiliate links, and I will be compensated if you make a purchase after clicking through my links. As an Amazon Associate, I earn from qualifying purchases.

Venus Laowa 25mm F2.8 2.5-5X Ultra Macro Alternatives in Pentax KAF2 Mount
Model Coverage Weight Focusing Street Price
HD Pentax-FA 31mm F1.8 Limited Lens HD Pentax-FA 31mm F1.8 Limited
Compare
35mm FF 341 g / 0.75 lb AF Amazon B&H Photo
HD Pentax DA 21mm F3.2 AL Limited Lens HD Pentax DA 21mm F3.2 AL Limited
Compare
APS-C / DX 134 g / 0.29 lb AF Amazon B&H Photo
HD Pentax DA 35mm F2.8 Macro Limited Lens HD Pentax DA 35mm F2.8 Macro Limited
Compare
APS-C / DX 214 g / 0.47 lb AF Amazon B&H Photo
Pentax smc DA 21mm F3.2 AL Limited Lens Pentax smc DA 21mm F3.2 AL Limited
Compare
APS-C / DX 140 g / 0.31 lb AF Amazon B&H Photo
Pentax smc DA 35mm F2.4 AL Lens Pentax smc DA 35mm F2.4 AL
Compare
APS-C / DX 124 g / 0.27 lb AF Amazon B&H Photo
Pentax smc DA 35mm F2.8 Macro Limited Lens Pentax smc DA 35mm F2.8 Macro Limited
Compare
APS-C / DX 215 g / 0.47 lb AF Amazon B&H Photo
Pentax smc FA 31mm F1.8 AL Limited Lens Pentax smc FA 31mm F1.8 AL Limited
Compare
35mm FF 345 g / 0.76 lb AF Amazon B&H Photo
HD Pentax-FA 35mm F2 AL Lens HD Pentax-FA 35mm F2 AL
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APS-C / DX 193 g / 0.42 lb AF Amazon B&H Photo
Samsung D-Xenon 35mm F2 AL Lens Samsung D-Xenon 35mm F2 AL
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35mm FF 195 g / 0.43 lb AF Amazon B&H Photo
Voigtlander 20mm F3.5 Color Skopar SL II Lens Voigtlander 20mm F3.5 Color Skopar SL II
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35mm FF 205 g / 0.45 lb MF Amazon B&H Photo
Samyang 24mm f1.4 ED AS UMC Lens Samyang 24mm f1.4 ED AS UMC
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35mm FF 580 g / 1.28 lb MF Amazon B&H Photo
Samyang 35mm F1.4 AS UMC Lens Samyang 35mm F1.4 AS UMC
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35mm FF 660 g / 1.45 lb MF Amazon B&H Photo
Samyang T-S 24mm f3.5 ED AS UMC Lens Samyang T-S 24mm f3.5 ED AS UMC
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35mm FF 680 g / 1.50 lb MF Amazon B&H Photo
Schneider PC-Super-Angulon 28mm f2.8 Lens Schneider PC-Super-Angulon 28mm f2.8
Compare
35mm FF 565 g / 1.24 lb MF Amazon B&H Photo
Carl Zeiss Distagon T 2,821 Lens Carl Zeiss Distagon T 2,821
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35mm FF 600 g / 1.32 lb MF Amazon B&H Photo
Lensbaby Burnside 35 Lens Lensbaby Burnside 35
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35mm FF 374 g / 0.82 lb MF Amazon B&H Photo
Carl Zeiss Distagon T 2,825 Lens Carl Zeiss Distagon T 2,825
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35mm FF 480 g / 1.06 lb MF Amazon B&H Photo
Carl Zeiss Distagon T 228 Lens Carl Zeiss Distagon T 228
Compare
35mm FF 520 g / 1.14 lb MF Amazon B&H Photo
Carl Zeiss Distagon T 235 Lens Carl Zeiss Distagon T 235
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35mm FF 570 g / 1.25 lb MF Amazon B&H Photo
Carl Zeiss Distagon T 3,518 Lens Carl Zeiss Distagon T 3,518
Compare
35mm FF 470 g / 1.03 lb MF Amazon B&H Photo
Sigma 18-35mm F1.8 DC HSM Lens Sigma 18-35mm F1.8 DC HSM
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APS-C / DX 810 g / 1.78 lb AF Amazon B&H Photo
Sigma 20mm F1.8 EX DG Aspherical RF Lens Sigma 20mm F1.8 EX DG Aspherical RF
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35mm FF 520 g / 1.14 lb AF Amazon B&H Photo
Sigma 24mm F1.8 EX DG Aspherical Macro Lens Sigma 24mm F1.8 EX DG Aspherical Macro
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35mm FF 485 g / 1.07 lb AF Amazon B&H Photo
Rokinon 24mm f1.4 Aspherical Lens Rokinon 24mm f1.4 Aspherical
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35mm FF 580 g / 1.28 lb MF Amazon B&H Photo
Sigma 28mm F1.8 EX DG Aspherical Macro Lens Sigma 28mm F1.8 EX DG Aspherical Macro
Compare
35mm FF 500 g / 1.10 lb AF Amazon B&H Photo
Rokinon 35mm f1.4 Lens Rokinon 35mm f1.4
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35mm FF 660 g / 1.45 lb MF Amazon B&H Photo
Sigma 30mm F1.4 EX DC HSM Lens Sigma 30mm F1.4 EX DC HSM
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APS-C / DX 430 g / 0.95 lb AF Amazon B&H Photo
Sigma 35mm F1.4 DG HSM Lens Sigma 35mm F1.4 DG HSM
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35mm FF 665 g / 1.46 lb AF Amazon B&H Photo
Samyang 20mm F1.8 ED AS UMC Lens Samyang 20mm F1.8 ED AS UMC
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35mm FF 497 g / 1.09 lb MF Amazon B&H Photo

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Venus 25mm F2.8 2.5-5X Ultra Macro Detailed Specifications


General
Brand Venus
Lens Type Prime
Lens Type Macro Prime
Lens Mount Pentax KAF2
Max Format 35mm FF
Focal Range 25mm
Image Stabilization
Colour Black
Zoom Method No Zoom
Power Zoom No Zoom
Zoom Lock No Zoom
Zoom Ratio 1.0X
APERTURE
Max Aperture F2.8
Min Aperture F16
Aperture Ring Yes
Diaphragm Blades 8
Optics
Optical Elements 8
Optical Groups 6
Special Elements 1 low-dispersion element

FOCUSING
Min Focus Distance 0.17m
Max Magnification 5X
Autofocus No
AF Motor Type No AF
Full Time Manual Yes
Focus Method Unknown
Distance Scale No
DoF Scale No
PHYSICAL SPECS
Weight 400g
Diameter 82mm
Length 65mm
Weather Sealing No
Filter Thread Unknown
Filter Notes -
Hood Supplied No
Tripod Collar No
Report a Correction
Frequently Asked Questions about Venus Laowa 25mm F2.8 2.5-5X Ultra Macro
is the Venus Laowa 25mm F2.8 2.5-5X Ultra Macro a Weather-sealed lens?
What is the Minimum Focusing Distance of Venus Laowa 25mm F2.8 2.5-5X Ultra Macro
is the Venus Laowa 25mm F2.8 2.5-5X Ultra Macro an Autofocus (AF) lens?
What is the Filter Thread Size of Venus Laowa 25mm F2.8 2.5-5X Ultra Macro
Does Venus Laowa 25mm F2.8 2.5-5X Ultra Macro have Image Stabilization?
Does Venus Laowa 25mm F2.8 2.5-5X Ultra Macro have Aperture Ring?
What is the Maximum Magnification Ratio of Venus Laowa 25mm F2.8 2.5-5X Ultra Macro


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