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and aid in protection against dew
The interior has one sewn in cinching strap to hold the optical tube firmly in place
5") Inside Dimensions 432mm x 273mm x 273mm (17" x 10
Matthias Steiner | NGC7822 | ASKAR SQA55 + ASI2600mcp
reducing spectrum shifts down to +/-1nm from the +/-3 or 4nm shift of standard coatings
SQA55 Carry Case and aid in protection againstProduct Introduction Specifications SQA55 Parameters Aperture size 55mm Focal length 264mm Focal ratio f 4. 8 Objective lens Quintuplet petzval APOOne piece of SD glass, one piece of ED glass Image circle 44mm Aperture blades 14 pieces Graded Aperture f 4. 8 f 22 Closest Focus Distance 5m Focusing mode Manual focus Filter Diameter M67 Total length 316mm (inclulding dew shield); 244mm (without dew shield) OTA weight 1. 84kg Total weight (including
