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Vello Pentax K Lens to FUJIFILM X-Mount Camera Lens Adapter with Aperture Control

BH #VELAFXPKA • MFR #LA-FX-PK-A
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Vello Pentax K Lens to FUJIFILM X-Mount Camera Lens Adapter with Aperture Control
Key Features
  • Pentax K to FUJIFILM X Body
  • Manual Aperture Control Ring
  • Achieves Infinity Focus
  • Matte Black Interior
Make the most of your existing collection of Pentax K-mount lenses with this Pentax K Lens to FUJIFILM X-Mount Camera Lens Adapter with Aperture Control from Vello. This durable adapter will allow you these lenses to be mounted to a FUJIFILM X-mount camera. Precise construction makes it easy to attach an adapted lens to a camera body and keep it secure during use. Infinity focus is guaranteed, ensuring proper functionality when shooting at long distances. This adapter features a built-in manual aperture control ring that will allow the aperture of the lens to be controlled for adjusting exposure and depth of field.
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Vello LA-FX-PK-A Overview

Make the most of your existing collection of Pentax K-mount lenses with this Pentax K Lens to FUJIFILM X-Mount Camera Lens Adapter with Aperture Control from Vello. This durable adapter will allow you these lenses to be mounted to a FUJIFILM X-mount camera. Precise construction makes it easy to attach an adapted lens to a camera body and keep it secure during use. Infinity focus is guaranteed, ensuring proper functionality when shooting at long distances. This adapter features a built-in manual aperture control ring that will allow the aperture of the lens to be controlled for adjusting exposure and depth of field.

The adapter is made from a durable zinc alloy for long life. Although the lens will fit physically, autofocus, automatic diaphragm (AE metering), and other functions dependent on communication between camera body and lens will be disrupted by the lens adapter. Focus and exposure will need to be set manually, or metered in aperture priority (stop-down) mode.

Enables the use of Pentax K-mount lenses on FUJIFILM X camera bodies, meaning an existing collection of lenses can be used on later generation DSLRs and mirroless cameras.
Precision machining securely holds the lens in place without any wobble.
Made specifically for Pentax K-mount lenses, this adapter features an integrated manual aperture control ring, ensuring you don't lose control over the lens' operation even when using it on a non-native camera system.
Infinity focus is guaranteed by placing the lens at the correct distance from the sensor, doesn't prevent shooting distant subjects.
Made from a durable zinc alloy, this adapter will withstand many uses for long life.
The internal matte black finish reduces reflections and glare, ensuring images maintain sharpness and contrast.
UPC: 847628003590

Vello LA-FX-PK-A Specs

Item Type
1x Lens Mount Adapter
Camera Compatibility
FUJIFILM X Mount
Lens Compatibility
Pentax K Mount
Electronic Communication
No
Included Shims
Materials
Zinc Alloy
Packaging Info
Package Weight
0.25 lb
Box Dimensions (LxWxH)
2.85 x 2.8 x 1.7"

Vello LA-FX-PK-A Reviews

Perhaps I got lucky...

By Greg
Rated 5 out of 5
Date: 2023-01-27

The copy I got worked great. Nice, tight (but not too tight) fit, and it reached focus at infinity exactly where it was supposed to. One area for improvement would be for the manufacturer to mark the aperture control (I have to glance down the lens barrel to see if the aperture is fully open). Overall, nicely done!

Not so Good

By David
Rated 1 out of 5
Date: 2018-12-10

The adapter has two problems. First, it fits a tad loosely on my Fuji X-T1and X-T2. The looseness is in rotation, so it has little or no effect on function. But it makes me wonder about how well the adapter is machined. The second problem is more serious: Evidently the thickness is not right, as the two lenses I have tried with it focus way beyond infinity. That is, when focused on distant hills, each lenss distance scale reads a little beyond 20 feet, maybe 25 or 30. Then several more degrees of rotation are needed to reach the infinity hard stop. (Both lenses focused correctly on my Pentax K5.) Again, poor tolerances, evidently. The aperture control is OK, but it does not let you choose an aperture numerically. I could live with that; but the tolerance problems mean the adaptor is going into the trash.

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