Description
The TOA-35 Reducer is a 0.7X reducer for use with the TSA-120, and TOA-150B telescopes. The reducer consists of 4 elements in 3 groups and utilizes ED glass, and produces a 44 mm diameter image circle. When used with the TOA-130 and -150, the appropriate adapter ring is required.
Specifications
Telescope with Adapter |
TSA-120 with TOA-35 RD | TOA-150B with TOA-35 RD |
Adapter Part Number |
TKA32580B | TKA32580B |
Aperture |
120 mm | 150mm |
Resolution |
0.97" | 0.77" |
Limiting Magnitude |
12.1 | 12.7 |
Light Gathering Power |
293X | 460X |
Focal Length |
635mm | 775 mm |
Focal Ratio |
f/5.3 | f/5.2 |
Image Circle Diameter |
44mm | 44 mm |
Optical Type |
ED Triplet | Doublet ED Triplet |
Tube Diameter |
125mm | 179 mm |
Tube Length (With Lens hood retracted) |
990mm (870mm) |
1280 (1110mm) |
Tube Weight |
6.7kg | 15.2 kg |
Recommended Finder |
7x50 | 7x50 |
Metal Back Distance |
56.2mm (Measured from back of CA ring) | 56.2 mm(Measured from back of CA ring) |
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