Takahashi TSA-120 - 120mm f/7.5 APO Triplet Refractor Telescope

Are you ready for more Takahashi innovations? You asked for superior quality optics in a portable package and you got it... the Takahashi TSA-120. The "T" stands for Triplet and an air-spaced triplet design is exactly what you'll get. Inside the precision crafted lens cell, you'll find three elements, two extreme quality crown and flint glass, with an FPL-53 Extra-low Dispersion glass element sandwiched in between. While traditional refractor designs use oil in between elements, Takahashi doesn't... that means no oil to possibly leak out or become opaque with age. The "SA" stand for "Super Apochromat" and Apochromatic means you're free from those strange violet glows which often accompany bright stars or planets.The lens cells are durably constructed to withstand transport - yet are fully able to be collimated should the owner wish to make adjustments. Just like its little brother, the TSA-102S, the optics on the Takahashi TSA-120 will be, we are sure, as near to perfection as you can get! The color free images produced will delight the lunar, planetary and deep sky observer with very high contract images with pin point stars.

• Aperture: 120mm

• Focal Length: 900mm

• Focal Ratio: 7.5

• Tube Length with Dew Shield: 990mm

• Tube Diameter: 125mm

• Diameter of Dew Shield: 713mm (28")

• Resolution: 0.97

• Limiting Magnitude: 12.1

• Back Focus: 227.5mm (8.93")

• Weight: 12.6 lbs

With TOA-35 Flattener:

• Focal Length: 882mm

• Focal Ratio: f/7.3

• Optical Performance: 7 micron RMS-spot to 20mm off axis

• Image Circle: 40mm

• Image Field: 2.6" diameter

With TOA-35 Reducer:

• 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, 40mm/3.4" field

Important Note: Takahashi America requires that their telescope optical tube assemblies be shipped via 2nd Day Air or faster in order for the full warranty to be in force. Please make sure you choose the appropriate shipping method in your shopping cart or, if you speak to an OPT associate, request 2nd Day Air or faster. If you are purchasing a telescope and mount package, it would be best to contact OPT for a shipping quote, since the mount can go Ground if you like, but the OTA is required to ship at least 2nd Day Air. Thank you!

The image shown above includes optional accessories, including the EM-200 Temma II Mount.