The Takahashi TOA-35 Reducer for TOA-130NS/NFB is a 0.7x focal reducer for the TOA-130 Ortho-Apo triplet refractors. 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.
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.
Spot diagram of Takahashi TOA-130 with TOA-35 RD 0.7x focal reducer.
|Optical design||4 lenses in 3 groups|
|Reduction factor||0.7 x|
|Image circle||44 mm|
|Connection telescope side
||M72 x 1 male|
|Connection camera side
||M72 x 1 male