Overall Rating: 10
Weight: 5 (Veritable Vote)
Date: 12/03/2004 02:32:05 pm PDT
Link to this vote: http://excelsis.com/1.0/displayvote.php?voteid=405595
>I also tested the TMB on Rasalgethi (alpha-Herculis) , an approximately 4&quot; seperation double. To my amazement , I saw a TINY dot of light almost touching the primary. Not touching , not a figure 8 , but clearly split! I ususlly need my Nagler 12 T4 to split this double (117X). Score 2 for the TMB.
There must be something wrong with your 7-inch TMB APO if it usually needs a power of 117x to cleanly split a wide double of 4 arcseconds, such as Ras Algethi. Please check again and take high-end orthos, but not Naglers. In my 6-inch f/9 Meade ED APO, Ras algethi is cleanly split at 55x and 76x using Kasai Ortho 25mm and Baader Genuine Ortho 18mm (same as UO HD Ortho), respectively.
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