IDAS, BORG & Specials

We start carrying IDAS EOS-E filter box, which accommodates 52 mm filter and allows for quick change without taking apart the optical chain. It looks very convenient.  Unfortunately 48 mm filter with a step-ring doesn’t fit. They are too high. Mounting base is Arca Swiss compatible. That’s nice.


Here is a new M75 focuser and carbon fiber tube assembly setup with 71FL.


And one of shots taken with above system. DSCF2739xst1

Some new items have been added at Specials site.

specials1.jpg67FL system is just 1 pound plus total weight and 230 mm physical length. To minimize total cost and weight, I set 1.25″ focuser at back end. All of Ortho eyepieces I have reach focus at infinity. As usual, each user can add or remove extension tubes for proper light path based on eyepieces.


~ by tedishikawa on March 24, 2016.

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