Optika SFX stereo microscope

Optika presents its range of SFX stereo microscopes with LED illumination for observation in bright field. This new series replaces the S and ST series which incorporated halogen lighting. The SFX series is made up of binocular loupes intended for education or initiation in botany, zoology, geology and gemmology.
All of them have fixed magnification , with rotary optics, in Greenough "V" system . We differentiate between the models with the possibility of 1 / 3X optics (SFX32, SFX34 and SFX 52) and the models with 2 / 4X optics. (SFX 31, SFX 33 and SFX 51). The SFX 91 model has triple rotary magnification of 1, 2 and 4X . All models have 10X WF eyepieces.
The stand is attached to a fixed vertical column on all models in the series, it is on models 33,34,51 and 52, that the column works or moves up and down with a rack system . In these same models, the stand incorporates a handle for grip and transport. Regarding the head we differentiate between the initial models of the series (31,32,33 and 34) with a fixed head and inclined at 45º and the two more advanced models (51 and 52) with a 360º rotating head and also inclined at an angle of 45º.
Lighting is the newest system in this series, and the one that makes the difference with previous models. They incorporate highly efficient, incident and transmitted 1W LED lighting . The regulation system can be with a button as in models 31 and 32 or with intensity adjustable by means of a tactile system located at the base of the binocular loupe, this system present in models 33, 34, 51 and 52 is much more practical and precise.
As for the power, all models go with potentiometer and rechargeable battery . The useful life of the battery is 20 years, and at medium intensity continuous observation can be made for 8 hours.
The SFX range incorporates the following models:

• SFX 31: 2 / 4X, 45º inclined head, button light adjustment
  
• SFX 32: 1 / 3X, 45º inclined head, button light adjustment
  
• SFX 33: 2 / 4X, 45º inclined head, touch light control
  
• SFX 34: 1 / 3X, 45º inclined head, touch light control
  
• SFX 51: 2 / 4X, 360º rotatable head, touch light reg.
  
• SFX 52: 1 / 3X, 360º rotating head, touch light control
  
• SFX 91: 1/2 / 4X, 360º rotatable head, touch light reg.