BORG Filter Box (# 7519)

This is our Jimmy’s setup – 71FL F3.9 + STF-8300C with filter box (# 7519) in front of a camera.

j8300a

j8300b

7519 allows to switch filters without disassembling the system.  It’s convenient, especially to one-shot color cameras if you wish to change filter based on sky conditions and targets. Filter box allows to set 48mm or 52mm such as LPS-P2,  LPS-D1, LPS-V4 and HEUIBII etc. IDAS filter is completely par-focal. So you don’t have to be worried about the focus shift at all.

See IDAS Quality Standard.

If you put LPS-V4 into a filter box and set deep-red filter in front of the objective lens, it turns 19nm bandpass H-alpha filter too. See the details at

v4+r1

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~ by tedishikawa on November 26, 2013.

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