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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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Using a K-Mount to XF dumb adaptor, will this ...
Using a K-Mount to XF dumb adaptor, will this lens work on an XT3 effectively? Compromises?
This lens can work effectively on an Pentax K to Fuji X adapter, with manual focus and manual aperture control only.
Date published: 2020-01-14
Will this work with Nikon D7500 crop senor
Will this work with Nikon D7500 crop senor
Yes, it will work with a crop sensor (Nikon DX format), but its magnification is increased from 2.5-5 to about 3.6-7.5. I use it with my D500, also DX format. Because it has such high magnification, it has very narrow depth of field, so it is a major challenge to use this lens unless you use a macro rail and focus stacking. Using it on a DX body is even more problematic, since the magnification is even higher.
Date published: 2020-03-04
Is there a focus ring on this lens to manually ...
Is there a focus ring on this lens to manually focus? I'm seeing confusing statements about the requirement of moving the camera to focus.
There is a ring that will extend the lens from out from 2.5-5x magnification. This is a prime/ fixed 25mm lens. It does not have a “focus” ring that you would find on a traditional zoom lens. You would have to move the camera to find your area of focus. This lens is best paired with a macro rail and tripod for that reason.
Date published: 2022-05-16
I know Venus Optics has a CanonFE to Micro 4/3s ...
I know Venus Optics has a CanonFE to Micro 4/3s adapter on their website and B&H don't appear to have in their catalog. Would ANY generic adapter (such as https://www.bhphotovideo.com/c/product/1413074-REG/fotodiox_eos_mft_lens_mount_adapter_for.html) work with this lens?
Yes, any EF to MFT adapter will work.
Date published: 2021-01-12
Does the focus ring move outward with the lens as ...
Does the focus ring move outward with the lens as it extends?
Yes, the focus ring on the Venus Optics Laowa 25mm f/2.8 2.5-5X Ultra Macro Lens for Canon RF
move outward with the lens as it extends.
Date published: 2022-03-18
Will this fit 1971 Nikon F2?
Will this fit 1971 Nikon F2?
Yes, the Venus Optics Laowa 25mm f/2.8 2.5-5X Ultra Macro Lens for Nikon F can be used on an old manual Nikon film camera such as the F2.
Date published: 2022-11-09
Would this lens work on my Nikon D3400 body and ...
Would this lens work on my Nikon D3400 body and would you recommend a focus rail even with a solid tripod?
The lens will mount. You will have no exposure metering so a separate light meter or a lot of trial and error exposure adjustments will be necessary.
A focus trail is HIGHLY recommended. At high degrees of magnification control of small camera movements is essential.
Date published: 2019-06-07
Will Canon-EF modification of this lens work with ...
Will Canon-EF modification of this lens work with Metabones 0.64 MFT speedbuster?
No this is not compatible
Date published: 2021-01-21