KERN OSF-439 Stereo Microscope

Available for backorder
£250.00 Exc. VAT £300.00 Inc. VAT
An education line of compact, robust stereo microscope ideal for schools, training establishment or workshops.
View full Specifications
An education line of compact, robust stereo microscope ideal for schools, training establishment or workshops.

• Practical and easy to use stereo microscope
• Safe and easy to move thanks to the built-in handle
• Robust and stable mechanical stand
• Very good optical properties
• Ergonomically designed
• Optimally suited to educational establishments
• Strong LED incident and transmitted dimmable illumination units
• Eyepieces are fixed in the tube, to protect against loss or damage

Optical system: Greenough
Brightness: Adjustable
Tube: Binocular, 45° inclined
Interpupillary distance: 55 – 75 mm
Dioptre adjustment: Yes, one-sided
Eyepieces: WF 10x Ø 20 mm
Field of view: Ø 20/10/5mm
Objectives: 1x / 2x / 4x
Total magnification: 10x / 20x / 40x
Illumination: Dimmable LED incident + LED transmitted
Stage plate: Black/white; Frosted glass
Packing dimensions: 290x225x340 mm (w x d x h)
Net weight (approx.): 2.25 kg

Technical Details

Illumination LED, Incident & Transmitted
Model OSF-439
Unit ea
Condenser No
Diaphragm No
Eyepiece(s) x10 W
Focusing Control Coarse
Maximum Magnification x40
Nosepiece n/a
Objectives x1, x2, x4
Ocular Type Stereo
Delivery & Returns


FREE DELIVERY on all orders over £75.00.

Orders £74.99 or less are subject to a £7.50 (exc. VAT) handling charge.

If all items ordered are in stock, for orders placed before 2pm Timstar will endeavor to deliver next day. 


Certain chemicals e.g. Lithium, Potassium, Methanol, Bromine etc., may now only be transported by ADR vocationally trained drivers. This has forced us to implement a carriage surcharge of £9.99 (exc. VAT) per order containing these chemicals (these are clearly marked in our chemical section).

Certain living products, such as Drosophila, will incur a carriage surcharge of £12.95 (exc. VAT). Please contact customer service for further clarification.


FREE DELIVERY on all orders £250 or over. 
Orders £249.99 or less are subject to a £25.00 (exc. VAT) handling charge. 

  • Scottish Highlands & Islands (non-framework agreement contract customers)
  • Channel Islands
  • Isle of Man
  • Isle of Wight


Certain chemicals and living products require special delivery and handling, for this reason, contact Customer Service for a separate quotation.


Please contact our Customer Services department before returning any goods.

Goods ordered in error are subject to a 10% restocking charge and are to be returned at the customers’ expense.

Customers must contact Timstar within 30 days of delivery to obtain authorisation to return any goods.

Goods returned by the customer without prior authorisation will not be credited. Timstar reserves the right to charge the customer a minimum of £15 to cover any collection and restocking costs it may incur as a result of a customer ordering error*. Customers must return all products unused and in their original boxes and packaging, including any manuals, software or accessories supplied with the products.

Computer software and consumables (discs, cartridges, cassettes etc) can only be returned if the original packaging is unopened and any seals intact. Failure to follow these guidelines may invalidate any claim.

Timstar cannot accept returns on certain products that are made to order, assembled prior to delivery or assembled and installed, unless they are faulty.

*All chemicals are non-returnable.

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