海外サイトでこんな写真と情報出てました。

http://www.astromart.com/classifieds/details.asp?classified_id=870387

来年初旬発売、価格は未定と書かれてまた。すごい性能です。でも高そう。。

NATIVE FOCAL RATIO: f/5; 650mm FL

Optical performance:

Off-axis distance [mm] 0 15 22 32
RMS-spot diameter [micron] 2.0 3.0 4.0 4.5
Relative illumination [%] 100 99 97 92

Takahashi has designed a new dedicated 645 format reducer for the FSQ-130ED that produces a 70mm diameter image circle with very small stars 5.0 micron at the edge of an 64mm circle.

645 Reducer 0.7x

Focal length: 455mm
Focal ratio: f/3.5
Image circle 70mm

Optical performance

Off-axis distance [mm] 0 15 22 32
RMS-spot diameter 2.5 3.0 4.0 5.0
Relative illumination [%] 100 96 90 60

The Takahashi RD-QR .73x can be used with the FSQ-130 and will produce color rich images across a flat field and a 44mm image circle.

RD-QE 0.73x

Focal length: 474mm
Focal ratio f/3.6
Image circle 44mm

Optical performance:

Off-axis distance [mm] 0 15 22
RMS-spot diameter (micron) 3.0 5.0 14
Relative illumination [%] 100 90 65

EX-ED 1.5x

The Extender-ED when used with the 130 offers larger image scale for smaller objects at 982mm.

Focal length 982mm
Focal ratio f/7.5
Image circle 44mm

Optical performance:

Off-axis distance [mm] 0 15 22
RMS-spot diameter (micron) 2.0 15 30
Relative illumination [%] 100 80 65

The EXQ-1.6x is well suited to be used with the FSQ-130 for greater image scale. Stars produced by the EXQ are small.

Extender-Q 1.6x

Focal length 1043mm
Focal ratio f/8
Image circle 44mm

Optical performance:

Off-axis distance [mm] 0 15 22
RMS-spot diameter (micron) 4.0 8.0 10.0
Relative illumination [%] 100 75 58