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TAKAHASHI REDUCER-CR 0.73x
$1,459.00
Unit price
/
Unavailable
SKU:
TK-TKA82580
Takahashi
TAKAHASHI REDUCER-CR 0.73x is backordered and will ship as soon as it is back in stock.
The Takahashi Reducer-CR is a 0.73x focal reducer for the FSQ-106EDX4, Mewlon 250CRS, Mewlon 300CRS and CCA-250 telescopes. The Reducer-CR has an image circle of 35mm, making it suitable for use with APS-C sized sensors and smaller.
The 0.73x reduction factor transforms the FSQ-106EDX4 into a wide 387mm f/3.6 astrograph. When used with the Mewlon 250CRS, 300CRS and CAA-250, imaging time is reduced significantly.
Spot diagram of Takahashi CCA-250 with RD-CR 0.73x focal reducer.
Spot diagram of Takahashi Mewlon 250CRS with RD CR 0.73x focal reducer.
Spot diagram of Takahashi Mewlon 300CRS with RD CR 0.73x focal reducer.
Specifications
| Reduction factor | 0.73 x |
|---|---|
| Backfocus | See "Adapters" tab |
| Image circle | 35 mm |
| Connection telescope side |
M72 x 1 male |
| Connection camera side |
M56 x 0.75 male |
| Total length |
TBD |
| Weight |
TBD |
| SKU |
TKA82580 |
Adapters
| FSQ-106EDX4 - 72.2 mm backfocus |
Coupling (TW) (FSQ-130ED) - TKP38003 & 645 RD Adapter - TKA36581 |
|---|---|
| CCA-250 - 56.2 mm backfocus |
RD-EXT Aux. Ring TKA86205 |
| Mewlon-250CRS - 72.2 mm backfocus | CAA - TKA23200 |
| Mewlon-300CRS - 72.2 mm backfocus |
CAA - TKA23200, RD-EXT Aux. Ring TKA83205 & M90-72 Coupling - TKP83111 |
To convert the Reducer-CR's camera-side M56 x 0.75 threads to the standard M54 x 0.75, you will need specific adapters depending on the telescope:
- FSQ-106EDX4 - CA-35 (SKY90) TKA35201
- CCA-250 - Coupling (TW) TKP86003
- Mewlon-250CRS - CA-35 (SKY90) TKA35201
- Mewlon-300CRS - CA-35 (SKY90) TKA35201
