Takahashi FC-FS Multi Flattener 1.04X
The universal field corrector for FC and FS refractors
The multiplication over time of the number of refractors and their associated correctors has made fitting increasingly complex for users of Takahashi equipment. This has been accompanied by increasingly specific combinations of one instrument, due to the very wide variety of imaging accessories to be adapted to the focus.
In order to simplify and rationalise, Takahashi has designed a universal field corrector: the FC/FS MFL "multi-flattener" 1.04x. Neutral in terms of magnification ratio (1.04x), it is intended for all refractors equipped with a Fluorite doublet lens, i.e. those of the FS and FC ranges, new and old models.
The design of this corrector has enabled all of the previous correctors of these refractors to be upgraded and adapted to the constraints of today's digital imaging. It has resulted in a better correction of field flatness and a drastic reduction of blue and red halos, making it possible to obtain images of flatter and more pricked stellar fields, even on older telescopes such as the FC-50, FC-65, FS-102 or FS-152.
Although the corrector is common, it must be used in conjunction with a photo adapter (CA) specific to each FC/FS telescope. The purpose of this ring, of different length for each model of telescope, is to obtain the backfocus necessary for optimal correction of the field of view at the focal plane. There is therefore a camera adapter for each refractor that is compatible with the corrector.
IMPORTANT! The Multi-flattener FC/FS 1.04x is not compatible with SKY90 and FOA-60 telescopes whose optical design of the lens is completely different from that of FC/FS ones.
Technical Specifications
| CHARACTERISTIC |
TAKAHASHI FC/FS MFL1.04X FIELD CORRECTOR |
| Design |
2 lenses in 1 group |
| Mechanical interface (IN) |
M56x075 thread, female |
| Mechanical interface (OUT) |
M52x075 thread, male |
| Backfocus |
40 mm |
| Mechanical diameter |
60 mm |
| Total length |
40 mm |
| Weight |
110 g |
Diagram of the focal point position and threads of the Takahashi FC/FS MFL1.04x field corrector
Table of metal back distances
| ITEM NUMBER |
NAME OF THE RING |
REFRACTOR |
VALUE OF A |
| TKA20203 |
CA-60C |
FS-60CB |
87.5 mm |
| TKA18203 |
CA-76 |
FC-76D, FC-76, FS-78 |
75.0 mm |
| TKA19203 |
CA-100 |
FC-100D, FC-100 |
71.2 mm |
| TKA01203 |
CA-50 |
FC-50 |
84.0 mm |
| TKA03203 |
CA-65 |
FC-60, FC-65 |
78.0 mm |
| TKA07203 |
CA-125 |
FC-100DL, FS-102, FC-125 |
69.2 mm |
| TKA24203 |
CA-128 |
FS-128, FS-152 |
66.2 mm |
In the Box
- Takahashi FC-FS Multi Flattener 1.04X
Manual & Warranty
