Testing SVBony 3-8mm Zoom Eyepiece On Planet Jupiter

In making this video I have used these optical instruments :
Sky 120ED DS Pro Apochromatic Schott Optical Glass Refractor Telescope.
Baader Q-Turret rotating eyepiece holder.
SVBONY SV215 1.25" 3mm-8mm Planetary Zoom Eyepiece.
BST Starguider ED 8mm eyepiece.
Takahashi EMC LE 7.5mm eyepiece.
SVBony 20mm Aspheric eyepiece used as finder eyepiece.
Huawei P30 Pro mobile phone camera.
I bought the SVBony 3-8mm zoom from seamless_solutions (4948) In ebay:
www.ebay.co.uk...
Bill Paolini's review of the SVBony SV215 1.25" 3mm-8mm Planetary Zoom Eyepiece here:
theskysearcher...
Ernest Maratovitch bench test of the SVBony 3-8mm zoom, both the pre-production (middle of the page) and final product (after middle of the page) here ( translated from Russian using Google translate):
astro--talks-r...