TAKAHASHI TOA-35 REDUCER
Takahashi
TAKAHASHI TOA-35 REDUCER is backordered and will ship as soon as it is back in stock.
The Takahashi TOA-35 Reducer is a 0.7x focal reducer for the TOA-130NS/NFB Ortho-Apo triplet refractors as well as the TSA-120, TSA-102N/S and TOA-150B with the additional TKA32202 CA-35 adapter.
The TOA-35 reducer has an image circle of 44mm, making it suitable for use with full-frame sensors. The 0.7x reduction factor transforms the TOA-130NS/NFB into a 698mm f/5.4 astrograph.
The TOA-35 Reducer consists of four lenses in three groups, with two low dispersion, high refractive elements for exceptional correction. When used with the TOA-130NS, the correction is 3 microns at the centre of the field and 6 microns at the edge.
The TOA-35 reducer for TOA-130 telescopes has an M72 x 1 male connection on the telescope-side. If you have the TOA-130NS, you will need to connect it via the TKA23200 Camera Angle Adjuster. For the TOA-130NFB, you will need to connect it using the TKP31003 Coupling (TW).
Note: in order to use common imaging systems which have an M54 x 0.75 connection with the TOA-35 Reducer for TOA-130NS TKA32580, you will need to purchase the additional CA Ring (TOA-130) TKA31202 adapter. For the TSA-120, TSA-102N/S and TOA-150B you will need to purchase the additional TKA32202 CA-35 adapter.
Specifications
| Optical design | 4 lenses in 3 groups |
|---|---|
| Reduction factor | 0.7 x |
| Backfocus | 62.5 mm |
| Image circle | 44 mm |
| Connection telescope side |
M72 x 1 male |
| Connection camera side |
M72 x 1 male |
| Total length |
TBD |
| Weight |
TBD |
| SKU |
TKA32580 |
Downloads
 TOA-35 Reducer system chart for TOA-150B, TSA-102N/S & TSA-120
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