Hight Quality SUPER PLAN-APO 2-3x BARLOW 31.8 - Modular variable-ratio.
Is composed multiple parts to be used in different ratios multiplication. Anodized aluminum body, stainless steel barrel.
It can be used at 2X e 3X.
It does not introduce chromatic aberrations being corrected on three wavelengths. The optical part and consists of 4 lenses in 4 groups, including 2 ED glass elements, MC treatment on all surfaces.
It can be used in both visual and for photographic use the correct field and full of light and 43 mm
Finally REMEMBER that works on all types of telescopes with the exception of low-newton running extension focheggiature. For the latter, we produce other models.
It's APO and APLANATIC also: ESSENTIAL REQUIREMENT FOR PHOTOGRAPHY AND FILMING CCD. MADE IN ITALY. THE NUMBER ONE OF BARLOW. FEAR NOT RESPECT.
We produce custom-made by Barlow 1.5X to 10X.