3" VISUAL BACK FOR ESATTO 3" & ARCO 3" PLL15 110mm diameter

110mm diameter

That is true also for apochromatic refractors where the chromatic aberration is generally only corrected for the visible light

001% (OD5) @ 300-1000 nm Coating Double-sided multilayer nano-coating Surface quality 60/40 (in accordance with US military watch MIL-O-13830) Parallelism <30" Glass type Schott monolithic optical substrate (non glued) Filter size Mounted 1

ready to work in any temperature condition

3" VISUAL BACK FOR ESATTO 3" & ARCO 3" PLL15 110mm diameterThis adapter allows to connect an accessory with a 3" nosepiece to the M81 thread of the Prima Luce Lab ESATTO 3" robotic focuser or ARCO 3" robotic rotator. It incorporates a compression brass ring that avoids scratching the accessory barrel. Three locking screws tightly secure any heavy 3" accessory. Optical thickness of the adapter is 12. 5mm. Specifications Material Aluminium Optical thickness 12. 5mm Thread on the focuser side Male M81 x 1 SKU