No Reviews Q & A
Product Highlights
  • Measures Incident & Reflected Light
  • Ambient & Flash Photo Mode
  • ISO 3 ~ 13,107,200 Film Speed Range
Sekonic Speedmaster L-858D Light Meter Sekonic Speedmaster L-858D Light Meter
Find it for less? Let us know.
Web Availability: In Stock
Product is In Stock in our Warehouse or in one of our store locations. We will confirm stock is available and process your order. If the available stock is sold before your order is processed, you will receive an email from us.
  • Available in Edmonton
  • Available in Toronto
Vistek Locations
  • Toronto In Stock
  • Ottawa Available for Order
  • Mississauga Available for Order
  • Calgary On Transfer
  • Edmonton In Stock
Please call and verify availability at the store as stock changes daily.


The NEW Sekonic SPEEDMASTER L-858D combines over 60 years of Sekonic innovation with cutting-edge flash measurement technology to meet and exceed the demands of today’s photographers.

Pioneering the flash duration measurement, the L-858D provides the critical flash data needed to calculate proper ambient-flash exposure. As its name implies, the SPEEDMASTER L-858D also measures the brief flash bursts of HSS (High Speed Sync) for precision flash exposure control. 

Key Features:

  • Flash Duration Measurements
  • HSS Flash Measurements
  • Exposure Profiling
  • Optional Radio Transmitter Modules for Elinchrom® and Phottix®, in addition to PocketWizard®

The L-858D includes the essence of the popular L-478D series features and functions that enable photographers to break through the boundaries of ISO sensitivity, flash and ambient shutter speeds, as well as frame rates (f/s) and shutter angles for cinematographers. Both motion image makers and landscape photographers will benefit and enjoy the increased sensitivity for both incident and reflected-spot measurements providing extreme low light level readings. In addition, the L-858D offers optional wireless triggering modules now available for Elinchrom® and Phottix® in addition to PocketWizard® brand radio triggering devices. With its 2.7” color touch screen and truly innovative advanced and sophisticated features, the L-858D leads the way to the next generation of light measurement control.

Additional Features:

  • 2.7” Color dot-matrix touch screen
  • Extended ISO Range ISO 3 to ISO 13,107,200 + ISO 850
  • Expanded Shutter Speed Range 30 min. to 1/16,000s for flash light
  • Expanded Shutter Speed Range 30 min. to 1/64,000s for ambient light
  • Full HD Cine and CINE mode: 1 to 1000f/s and 1 to 358 degree shutter angle
  • Connectivity with MAC/PC DTS software for firmware upgrades, custom settings and Exposure Profiling


Questions & Answers

Sekonic Speedmaster L-858D Light Meter

Looking for a personal touch? Not sure if you are choosing the right product? Our staff is here to help.

We want to make sure you get the right product for your needs.
Our staff will help you understand the options available so you can be confident in your purchase.

As the country’s leading Professional Imaging retailer, Vistek is in the perfect position to ensure you make the right choice.
Contact us today for a personal touch.