Description
- Safe for solar observation and photography with all high-end telescopes and extreme Tele lenses. Suitable for highest magnifications and detailed observation of individual sunspots
- AstroSolar Safety Film OD 5.0, mounted stress-free in temperature compensated cell
- No astigmatism during winter observation or with temperature changes in summer
- Scope of supply: ASTF Filter with apertures from 80 to 180mm (200 – 280mm not yet available) come with two sets of centering bolts in 38mm length. 3 bolts with 10mm diameter and 3 bolts with 20mm diameter, adjustable to the tube diameter of your telescope or dew cap. In addition three safety straps with glue-pads and three rubber plugs to cover the holes that are not used, mounting instructions.