The medium quality 2 1/2" focal length lens for Trotec Speedy 400 machines is a good, multi-purpose engraving and cutting lens.  It provides good quality engraving over very large areas, with minimal change in engraving dot sizes.  In other words, the variation in height fluctuations of materials and the machine's table, over larger areas is offset by using this lens.  The same is true for cutting as well.  And, certainly it can be used for any size job whether small or large.
 
2 1/2" Focus Lens with round style holder for Trotec Speedy 400 Laser Engraving machines. Features medium grade focus lens.

Low price, good quality. Why pay excessive prices? High quality machined aluminum base. Medium grade lens. Save a bundle.

Fits any Trotec CO2 Laser Engraver including Trotec Speedy 400.
 
Add a quality lens to your Trotec Laser Engraver today.

Features the medium grade focus lens. Great for most laser engraving work.

Includes both the silver anodized lens holder with lens attached.
 
OPTIONAL: Nozzles with three sizes of holes so that you can choose the best air stream for the best quality. Easy to change nozzles, great for higher quality. After you vary the nozzles you will quickly learn which colored nozzle to choose for the material/job at hand.

Fast installation. Simply remove the old lens/holder and insert this lens/holder. Nothing could be faster!