Rigel Motorized Focuser Option & Solar Movie

I noticed Rigel’s motorized focuser retrofit option seems to be more cost-effective solution. Some BORG users who are interested in PC control, please check their web site.

www.rigelsys.com

73-ft-stepper

According to their web site, one of good features looks quick detach/attach function. I’m not sure how. But it looks convenient.

I used BORG 1.08x field flattener for solar imaging first time to “hopefully” improve off-axis image. Thanks for 2″ straight-type blocking filter.

 

A following is a pure single frame (without stacking multiple frames) with a field flattener. 1.08x ratio takes up to 650mm focal length. As shown below, this looks the longest focal length in 1/1.2″ sensor(13.4mm diagonal) for solar full disc.

1021d

BORG 89ED with BORG 1.08x (=650mm f.l.) + SF50 + ZWO 174MM

1021a

Unusual acrobatic situation at the end of imaging session after passing the meridian.

1021b

Hinode solar guider, which maintains the sun at the center without the polar alignment

1021c

A field flattener is in place.

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~ by tedishikawa on October 21, 2016.

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