Takahashi TSA-120 (OTA) tube only - TTK12010

Takahashi TSA-120 120mm F8 triplet APO OTA - TTK12010

The TSA-120 is the second triplet apochromat in the TSA Series. Its superb color correction will provide high contrast images with pin point stars across the field.

The compact size of 28" allows the TSA-120 to be easily transported to remote sites.

The TSA-120 is a great scope for imaging. The TOA 35 flattener converts the 120 into an f/7.3 882mm flat field 2.6º instrument and the reducer changes it to an f/5.6 672mm

Specification:

• Second TSA triplet apochromat
• Very high order of color correction
• Compact design only 28" long collapsed
• Long back focus 227mm [8.93"] to accommodate bino viewers and any 2" diagonal
• Supplied with 2" and 1/1/4" accessories and extension tubes
• Quick release finder bracket included
• Knife edge baffles are standard for highest contrast
• Diameter of main tube: 125mmø
• Diameter of dew shield [sliding]: 713mm? [28"]
• Weight of OTA : 7 kgs/15.4 lbs
• Back focus: 227.5mm [8.93"]
• Aperture: 120mmø
• Focal length: 900mm
• Focal ratio: f/7.5
• Optical design: Triplet ED apo
• Coating: Broad band multi-layer anti-reflection coatings
  

• Focal length: 882mm
• Focal ratio: f/7.3
• Optical performance 7 micron RMS-spot
• to 20mm off-axis
• Image circle: 40mmø
• Image field: 2.6ºø diameter
  

• Focal length: 672mm
• Focal ratio: f/5.6
• Optical performance: 4 microns RMS-spot on axis
• 6 microns 10mm off-axis
• 13 microns 20mm off-axis
• 40mmø/3.4º field