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Keks KM-Q Light Meter with Back Display (Chrome)

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Keks KM-Q Light Meter with Back Display (Chrome)
Key Features
  • For Cameras without Light Meters
  • Aperture Range: f/1.0 to f/64
  • Shutter Speed Range: 30 to 1/6400s
  • OLED Screen on Back of Housing
The KM-Q Light Meter with Back Display from Keks is an ultracompact OLED light meter designed for analog cameras without light meters or meters that are no longer functional. The KM-Q's compactness redefines portability, boasting a size comparable to that of a sugar cube. The aluminum housing features a 0.42" OLED display on the back, and a stylish chrome finish to match or accent any camera body. It is powered by a built-in rechargeable 120mA battery, supported by a USB-C charging port, providing up to 20 hours of continuous operation.
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Keks KM-Q Overview

From Manufacturer

The KM-Q Light Meter with Back Display from Keks is an ultracompact OLED light meter designed for analog cameras without light meters or meters that are no longer functional. The KM-Q's compactness redefines portability, boasting a size comparable to that of a sugar cube. The aluminum housing features a 0.42" OLED display on the back, and a stylish chrome finish to match or accent any camera body. It is powered by a built-in rechargeable 120mA battery, supported by a USB-C charging port, providing up to 20 hours of continuous operation.

The KM-Q uses a VEML7700 high-accuracy ambient light and a 16-bit digital resolution sensor. It ensures higher accuracy and better reliability, guaranteeing a more accurate reading. The 30° average metering angle provides an equivalent 50mm lens view.

  • Meter type: ambient, reflective light
  • Metering angle: 30° average metering (approximately 50mm lens view)
  • ISO range : 50-8000
  • Aperture range: f/1.0 to f/64
  • Shutter speed range: 1/6400s to 30s
  • Display: 0.42" OLED
  • Battery life: over 20 hours with display on, over 6 months on standby
  • Battery: 3.7v 120mAh
  • Charging time: 30 min
  • Charging port: Type C
  • Three different shoe mount sizes
UPC: 197644454600

Keks KM-Q Specs

Key Specs
Meter Type
Ambient
Spot Metering
No
Flash Metering
No
Light Reading Method
Reflected
Measuring Modes
Continuous Reading
Display
0.4" / 1 cm Grayscale OLED
System Connection
USB-C
Battery
1x Built-In (Lithium)
Radio System
No
Meter Type
Ambient
Spot Metering
No
Flash Metering
No
Metering
Light Reading Method
Reflected
Measuring Modes
Continuous Reading
Aperture Range
Ambient, Reflected: f/1 to 64
ISO Range
50 to 8000
Shutter Speed Range
6400 to 30 Second
Physical
Display
0.4" / 1 cm Grayscale OLED
System Connection
USB-C
Media Card Reader
No
Tripod Mounting Thread
No
General
Battery
1x Built-In (Lithium)
Radio System
No
Dimensions
1 x 0.9 x 0.8" / 25.5 x 22 x 21 mm
Weight
0.7 oz / 18.5 g
Packaging Info
Package Weight
0.08 lb
Box Dimensions (LxWxH)
2.55 x 1.65 x 1.6"

Keks KM-Q Reviews

Works as I needed

By Rennis
Rated 5 out of 5
Date: 2026-03-02

my previous hot-shoe light meter died so I had heard about KEKS products. This one is very small and works nicely. I do have to say that I have to watch the instructional video occassionally as the buttons are a little confusing for adjusting the f/stop and/or shutter speed. I suppose this is mostly due to my infrequent usage. In any case, this is a great, light weight option for external on-camera light meter.

Great KM-Q Light Meter

By William
Rated 4 out of 5
Date: 2025-07-07

Great light meter for my Leica M4P. Non existent customer service and support from Keks.

See any errors on this page?

Thinking of getting a KEKS KM-Q for my Yashica ...

Thinking of getting a KEKS KM-Q for my Yashica Mat 124 TLR. Which one should give me ease of use, Back Display or Top Display?
Asked by: Louis
The Keks KM-Q Light Meter with Back Display (Chrome) is best for the Yashica Mat 124 Twin-Lens Reflex.
Answered by: Lawrence C
Date published: 2024-11-12

Can you change the stop increments? Full, half, ...

Can you change the stop increments? Full, half, and third stop options?
Asked by: Alex
Settings on the Keks KM-Q Light Meter with Back Display (Chrome) can only be adjusted in 1/3 stop increments.
Answered by: Kenneth C
Date published: 2026-02-02

Can it display EV numbers?

Can it display EV numbers?
Asked by: Ken
The Keks KM-Q Light Meter with Back Display (Black) can only display f-stops and shutter speed.
Answered by: Elliot
Date published: 2025-01-09

Hi! Does Keks KM-Q Light Meter has ISO value 320? ...

Hi! Does Keks KM-Q Light Meter has ISO value 320? Thank you!
Asked by: Aksinnia
Yes, the Keks KM-Q Light Meter with Top Display does let you set the ISO value to 320.
Answered by: James P
Date published: 2024-11-27
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