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Venus Optics KX-800 Flexible Macro Twin Flash

BH #VEKX800 • MFR #VEKX800
Venus Optics
Venus Optics KX-800 Flexible Macro Twin Flash
Key Features
  • Designed with Two Flexible 18.9" Arms
  • Guide Number: 190' at ISO 100
  • Independent Output Control
  • LED Focus Assist Light
Along with their impressive development of unique macro lenses, Venus Optics has created the versatile KX-800 Flexible Macro Twin Flash to help illuminate your close-up subjects. It has a twin flash design with each head mounted on its own 18.9" long flexible arm. This flash boasts a guide number of 190' at ISO 100 and each head has independent output control for dialing in the perfect ratio for the scene. Also, manual power can be set from 1/1 to 1/128 for 8 levels of adjustment.
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Venus Optics KX-800 Overview

Along with their impressive development of unique macro lenses, Venus Optics has created the versatile KX-800 Flexible Macro Twin Flash to help illuminate your close-up subjects. It has a twin flash design with each head mounted on its own 18.9" long flexible arm. This flash boasts a guide number of 190' at ISO 100 and each head has independent output control for dialing in the perfect ratio for the scene. Also, manual power can be set from 1/1 to 1/128 for 8 levels of adjustment.

Assisting with critical focus on your tiny subjects is an LED assist light, which is able to be positioned exactly where it is needed with its own flexible arm. A fast recycle time of 2-5 seconds will also help in ensuring you won't miss a shot with a fast moving subject. Ensuring compatibility with numerous cameras, it features a standard hot shoe mount as well as a PC sync terminal on the side. It runs on 4 AA batteries.

Long 18.9" flexible arms ensure ideal placement
Head rotates 270° for fine tuning your setup
Daylight-balanced color temperature of 5600K
Stronger arm design compared to previous models
Flash duration of 1/200 to 1/20000 second
Weighs 1 lb
UPC: 683203914659

Venus Optics KX-800 Specs

Flash
Guide Number190.29' / 58 m at ISO 100
Color Temperature5600K
Flash Duration1/200 to 1/20000 Second
Recycle TimeApprox. 2 to 5 Seconds
Exposure ControlManual
Power Range1/1 to 1/128
Secondary IlluminationModeling Light
Power
Internal Power4 x AA
General
MountShoe Mount
DisplayYes
Off-Camera TerminalPC
Dimensions (W x H x D)Not Specified by Manufacturer
Weight1 lb / 453.6 g
Packaging Info
Package Weight1.41 lb
Box Dimensions (LxWxH)9.1 x 8.25 x 3.2"

Venus Optics KX-800 Reviews

Works great, exactly as expected

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

Allows great flexibility in the angle of lighting for Macro, while keeping that angle the same for focus stacking a lot of images. Exactly what I needed.

Great for Macro!!

By Michael L.
Rated 5 out of 5
Date: 2021-05-06

I use it for macro of plants, flowers, mosses, fungi, and arthropods..takes a bit of working with the settings to get it set correctly and then diffused correctly..but the results are wonderful. I diffuse with tracing paper..(look up the review on youtube by Thomas Shahan for the KX800)

Design problems

By Anne
Rated 2 out of 5
Date: 2021-01-06

Such a great idea but I am disappointed with this flash. It feels cheaply made. The locking dial also doesn't form a tight connection with the hot shoe on my Sony a6500 camera resulting in the flash slipping off the camera easily. Additionally, the flash doesn't sync properly with my camera. As one other reviewer noted, when the shutter is depressed, the unit does flash, but other than that, the camera doesn't recognize that a flash is attached.  It is marketed as a universal flash system but some of the comments indicate that it may require an adaptor. If the flash felt well made and fit tightly on the camera, I might be willing to take that step. However, since it easily slides off the hot shoe and feels cheaply built, I'll be returning it.

Fun ans Fragile

By Bradley
Rated 4 out of 5
Date: 2020-12-02

This is a fun flash to use, with some cool tutorials out there for modding it with soft boxes and other diffusion options. I'd definitely get the extended warranty as the nature of the bendable arms and flash heads is that they are fragile, yet agile. Great for my macro photography needs.

Overkill, which is good

By Richard
Rated 4 out of 5
Date: 2020-11-24

I'm only aware of two products of this type.. The other is the Bolt VM 260, no longer on the market. Thanks to B&H, I own both. Let me compare. The Bolt is smaller, lighter, easier to pack, but it is unreliable. My first failed, dead, a few hours after first use. B&H replaced. The replacement works well, but has a quirk in which if the shutter is not released within a short time after turning on power, the flash will not fire. Work around is a manual test flash, then shooting my shot. This Venus Optics unit is more capable, longer arms, and very importantly has a focusing light. When shooting close ups using small apertures focusing is very difficult, too little light. When I use the Bolt I sometimes also take a small flashlight mounted in a tabletop tripod. The KX-800 solves this problem. Its focusing light has variable output and goes quite brite and is a great convenience. The KX-800 is powerful. So far I've only needed 1/64th to 1/16th power. Also, in contrast to the Bolt, here the outputs of right and left strobes are controlled independently. Only negative is bulk. Packing this into a camera bag requires exclusion of other equipment. In the field when I am seeking wildflowers it will be with me, but when I only wish to have a dual macro flash in case I'll slip the Bolt into my bag. When shooting at home bulk is irrelevant. I can get good photos with either unit. The KX-800 seems well made, sturdier than the Bolt.

Great idea, poor execution

By Aboud
Rated 2 out of 5
Date: 2020-11-10

There is so much potential here, little of it met. The unit is cheaply constructed. I did not like the locking device for the flash shoe, no matter how tight, within reason, I made it, it did not feel well seated. The LED light is a cute idea. It would certainly help with focus, but that's it. The bigger issue is knowing where the light is going to fall on the subject, especially when working in close. An LED should be built into the flash heads to work as modeling lights. The variable light output for each head is good, but it would be nice if one head could be turned off completely. Now, to the arms. They do not move easily and fine tuning their position is a challenge. I own Venus lenses, they are quite good, well built. Lending their name to this product is a mistake.

Must have for micro photograph

By Glynn W
Rated 5 out of 5
Date: 2021-09-14

The flash has been dependable and easy to use I'll say it again as a mustache if you do a macro photography

Twin Macro flash

By Kamran
Rated 4 out of 5
Date: 2021-05-19

Seems to work fine with any camera.

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will this work on a sony a68?

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Asked by: thomas
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Answered by: stuart e
Date published: 2020-01-14

Is Guide Number of 190 feet at ISO 100 correct? I ...

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Asked by: James M
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Answered by: Lenny
Date published: 2019-08-20

Is it practical to use this flash for non-macro ...

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Asked by: Richard
Yes, I have used the KX-800 for non-macro photography and there are some advantages in that you have the possibility to have flash lighting from different angles. Not much use for large or distant subjects , but quite nice for portraits and still-life. With a little ingenuity one can also screen the flash lamps differently for softer and sharper effects or colour effects on the same subject.
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Is the flash LED or Xenon?

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Yes, The Venus Optics KX-800 uses a Xenon flash.
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