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Want to buy a Dark Field Microscope?

We can provide you a complete professional solution for dark field microscopy! More about us...
About Us
Sarras e.U.

Sarras e.U. is a consulting and trade company based in Vienna (Austria) founded in 2007. Our focus is on the equipment for optical inspections and especially the microscopy.

Darkfield microscopy equipment is our specialty. The focus of our offering is not just the darkfield microscope itself, but rather a complete solution for professional yet cost-effective darkfield equipment. This includes a coordinated combination of a darkfield microscope, adapter, high-resolution microscope camera, and optional a compatible monitor. We currently offer darkfield sets from the manufacturers OPTIKA and ZEISS, which from our perspective cover the entire spectrum of our customers' requirements regarding quality and cost-effectiveness.

In addition to the equipment, we also offer financing options upon request, as well as technical training and (depending on your region) assembly and on-site installation. This saves you work and helps you learn how to optimally use the darkfield microscope, camera, and software settings!


Konstantinos Sarras (Founder and Managing Director of Sarras e.U.)

Components

Microscope, Cameras and Accessories

In this section you will find information and the technical data sheets of the individual components, which compose our packages (sets). The individual components (e.g. the dark field microscope or the camera) are available also separately in our webshop.

Dark Field Microscope
OPTIKA B-510DK

Dark field microscope OPTIKA B-510DK
The dark field microscope OPTIKA B-510DK manufactured by OPTIKA has been designed for use in laboratories and especially for LBA examinations. It can be combined by adapter with SLRs or microscope cameras for the live image transmission to a monitor and for recordings.

Microscope Head Type: Trinocular observation head, inclined 30° and rotatable 360°.

Objektives: Plan-achromatic, infinity corrected objectives: 4X, 10X, 40X and 100X. The 100X-objective is an oil immersion objective with built-in iris (see image below). All objectives are treated with an anti-fungus treatment.
oil immersion objective 100X

Condenser: This is the core part of the dark field microscope. It has an integrated high-power LED with adjustable intensity (Colour temperature: 6.300K, LED life time: ca. 50.000 hours)

Dark Field Condenser from OPTIKA

Technical Specifications: Dark Field Microscope OPTIKA B-510DK (PDF)

ULTRA-HD Microscope cameras

Microscope cameras
For the live view and recording we offer two high resolution camera models:

  • HDC-DF4L - UHD-resolution (3840x2160), HDMI- and USB-interface
  • Tucsen 4K Pro - UHD-resolution (3840x2160), HDMI- and USB-interface
Both models are equipped with highly sensitive SONY sensors suitable for difficult light environments such as dark field or fluorescence microscopy. Below you can find a summary of their main features.
Camera with attached mouse on its USB port
HDMI Operation Mode: this is a special feature of these models: in HDMI mode, the supplied mouse can be connected to the USB port of the camera. With the mouse you can then activate the on-screen menu and use it to take pictures and videos and control all of the camera settings.

Multi signal output: The cameras can be connected directly to a HDMI monitor (via their HDMI port) or to a PC (via their USB port). You can even use both outputs in parallel. In HDMI mode they achieve up to 60 frames/sec in full resolution!

Flexible exposure times: In addition to auto-exposure mode, the cameras allow you to adjust manually exposure and gain, which we highly recommend for dark field applications. The exposure time can be adjusted nearly step-free (graduation: 1 ms).

Zoom – mirror - compare: Both the on-screen menu (HDMI mode) and the PC application offer zoom functions and the ability to mirror the image horizontally/vertically. In addition, you can divide the screen vertically in two halves: one half shows the live image and the second an existing image from your image gallery to compare preparations.

Built-In Player: Already taken pictures and videos are stored on the removable SD card of the camera. You can browse through them and have them played by the camera on the HDMI monitor - without a PC!

macOS Support: only Tucsen 4K Pro (download from Apple App store)

Technical Specifications: Tucsen 4K Pro (pdf) and HDC DF4L (pdf)

SAMSUNG ULTRA-HD Monitor

Samsung Monitor ls27h650fdu
The ideal complement for your darkfield equipment with a high-quality and robust monitor from SAMSUNG. All offered monitors are reflection-free and 100% compatible with the cameras of each bundle. We currently offer 32" UHD monitors (3840 x 2160 pixels).

C-Mount Adapter

optical cmount adapter
With these adapters, you can connect our microscope cameras to the trinocular tube of the B-510DK darkfield microscope and capture photos and HD videos.

Our adapters have a variable focal length so that the focus deviation between the image you see through the eyepieces and the image on the screen can be eliminated.

Consumables

consumables for dark field
Our darkfield starter kit includes everything you need in order to operate with the darkfield microscope and start working immediately. The contained products come from reputable manufacturers. The individual products can also be purchased separately via our webshop.

Complete Solutions

Coordinated Darkfield Combinations

The following sets are pre-configured combinations for live view and recording in darkfield. Some sets also include a compatible monitor. Find more sets and current daily prices in our webshop. Below you'll find the price ranges of our offerings for orientation. All prices listed are exclusive of VAT.

OPTIKA UHD-1-MON32 Set

  • OPTIKA B-510DK Microscope
  • UHD Camera HDC DF4L
  • Optical Adapter Camera-Microscope
  • Samsung 32" UHD Monitor

OPTIKA UHD-2 Set

  • OPTIKA B-510DK Microscope
  • UHD Camera Tucsen 4K Pro
  • Optical Adapter Camera-Microscope
  • ---

OPTIKA UHD-3 Set

  • OPTIKA B-510DK Microscope
  • UHD Camera HDC DF5
  • Optical Adapter Camera-Microscope
  • ---

ZEISS UHD Set*

  • Microscope ZEISS Axiolab 5 KMAT
  • UHD Camera ZEISS Axiocam 212 color
  • Optical Adapter Camera-Microscope
  • ---

* ZEISS solutions can be shipped only to customers in Austria, Germany and Switzerland



In the following video, you will see a capture through the trinocular of the OPTIKA B-510DK dark field microscope, which was recorded on our demo unit.

In the following video you can see the practical use of the HDC DF1 camera - the HDC DF4L has exactly the same functions. You'll see the mouse control mechanism, zooming, recording, comparison and playing back recorded images. This setup corresponds to the HDMI mode where no PC or software installations are required for camera control and record/playback. In this video, the camera is connected to the previous model of the B-510DK which was the B-500TDK.

Calibrating the darkfield condenser is known to be the biggest challenge for any darkfield beginner. To help you get started, the following video shows the typical condenser calibration process for the OPTIKA B510DK microscope.



Contact and Imprint

SARRAS e.U. Herbeckstrasse 74/5
1180 Vienna, Austria

If possible, please contact us by email as we are often in customer consultation - we will usually get back to you within the next working day.

For a non-binding offer please let us know your full address and your name/company name. We would also be happy to create a VAT-free offer for intra-community deliveries (IGL), provided that a valid VAT number is also provided in your request. Reliable shipping is possible worldwide via our logistics partner UPS and DHL Express.

IMPRINT
Sarras e.U.
Herbeckstrasse 74/5
1180 Vienna, Austria
Tel. : +43-1-9972790
Fax. : +43-1-9972790-300
Email : office@dunkelfeldmikroskop.eu
Company reg. nr.: 289101z at Commercial court of Vienna
VAT nr: ATU63138811

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