NightSEA SFA-FL-50 Focus Lens for SFA Light Head, 50mm

Features:

• The focus lens is an add-on for the SFA light heads to produce a higher illumination intensity!
• This is a simple adapter that slips over the front of your existing NIGHTSEA SFA light head and grips with a friction fit.
• Central spot approximately 2mm diameter, intensity increase ~3.5x

The images below show the focus lens add-on and the effect. The three illumination spot images were made in manual exposure mode and are indicative of the relative intensity.

Considerations for lens choice

To gain the benefit of the 30mm lens it is necessary to position the light head very close to the subject. This may be challenging in the tight space beneath a microscope objective. It might be more suited for photoactivation, where a high light intensity dose in a small area is often needed.

Note - If the light head has a snoot installed that will have to be removed to use the focus add-on.