- Apr 2, 2009
so what wavelength are these xcubes good for combining? 638/520/460 ? that would be nice. easy alignment. Do they hold polarization so you can do two sets and pbs the result?
Alan is all new to this in spite of what he put in his "about me"
-- These cubes (or kubes) are RGB or X-cubes. NOT actually PBS- (Alan is changing that) PBS cubes come in at least 3 wavelengths --this for combing two reds. a blue & a 405--a 520 and a 532 BUT not so good for making magenta- yellow- teal - or a great 'white'- look at the PBS cubes at Opt ... R -G B..
afaik Alan can get the PBS- the few we found for combo 44s are PBS cubes for 450nm high power..
-CONDITION-- again I am no optics expert-- BUT visually- with a loupe- on the two 18mm ones I already have the edges , the corners and all surfaces look-- to me anyway-- flawless. & they are indeed polished on the bottom & top. IMO that makes better pics when done from above.. the frosted glass look is not there.
the 25mm ones are not 6 sides polished BUT I had to jump on the BIN --less than $6 -- even with some chips etc- that is a cheap prism.. 'Very Slight' is a 'grade' of cubes that did not pass QC. its IMHO same as 'near=perfect' .
Certainly good enough for me..
(pss don't tell anyone --Ok)
for me anyway shipping to Texas has been around 12 to 14 days. overpacked - had to break out the box cutter-- one thing about that overkill packing-- it leaves a good impression.. and 'could' make the package look a little TOO hard to open- inspect- and reclose.. who knows.. but both came double boxed like that.. I would rather get stuff like that than a single thin ass bubble envelope with very little protection..
any help- tips etc- fatherly advise-- whatever-- watch his back.. good person.. new to forums too... so --thanx
XXXXXXXXXX combining posts- move along... nothing to see here!!
pardon the double--will edit later-
after re-reading all that.. I am thinking (and no real reason I have not just shot 3 pointers thu one here- take pic.. sry-- I will on sunday promise..)
what may be more correct.. his X Kubes (so far) would not be the kind one uses to combine same or near same nm.. those would be PBS ..right? I know a white LED light nicely splits the colors down to RGB. so stands to reason a RGB sled would have its RG & B split.. or putting R-G and B lasers into the right three sides would make a 'white' . almost 4am-whew long day..
new 488/60 arrived today (love it)- just in time for new prism/X-Kube pics.
I think I can get 488 from my argon. (ML)- not sure of the exact nm from SL Argons,,need to get ALL my 'Blue Family ' out for a new group pic