Excelsis Ratings/Reviews - Votes:Borg 101ED

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Borg 101ED

You can't beat this doublet with anything from China. Forget Dawes limit; it does not apply as this scope easily exceeds 100X per inch aperture on nights of decent seeing.

Can be carried with all necessary accesories in a fat briefcase.

Takahashi Optics in a teenie package. The helical focuser is neat, but I replaced in with an Antares dual rate.

Overall Rating: 9
Optics:9 Ease of Use:10 Value:8
Weight: 5 (Veritable Vote)
Date: 03/04/2008 11:43:02 pm PST
By: Anonymous (xxx.xxx.232.69)
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=575815

Reply Replies: 0

Borg 101ED

My problem with this scope is that the tube is too long (when used in conjunction with the Helical focuser) to reach focus using a 2" diagonal.

That said I use a nice 2 speed Crayford and 2" dielectric diagonal.

I use 80* Kohki Kokusai 30, 20, and 13 mm eyepieces and keep an original Nagler 4.8 around. I also carry an Antares 2" 1.6 ED barlow.

It does not eliminate all color on the brightest objects, but clearly - even above 250x the contrast and crispness is very impressive. That doesn't happen unless the luminance of the whole spectrum is very well constrained. At F/6.3 I don't know if a better doublet exists.

I use this strictly for visual grab and go, but plan to do imaging with it in the future. This little thin makes a 12 year old LX55 or LX75 Meade mount look like a champ; it is a "featherweight heavyweight".

Overall Rating: 8
Optics:9 Ease of Use:5 Value:8
Weight: 1 (Unreliable Vote)
Date: 07/11/2017 04:14:56 pm PST
By: Anonymous (xxx.xxx.149.191)
Link to this vote: http://www.excelsis.com/1.0/displayvote.php?voteid=615334

Reply Replies: 0

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