here are some items i want to selL
50mm aperture with 200mm FL guiding scope in mint condition（tube holder included）
looking for 60SD
2 inch light pollution filter used for cooled color cmos/ccd or DSLR from optolong
this filter was bought in this year ,its never been used, and now i have my first mono cmos for astrophotograph, i dont think i would have any chance to use it in future . if you are using DSLR or some cooled color ccd/cmos its a good companion when doing astrophotography in SINGAPORE by effectively reducing the city light
looking for 150SD
if you are intersted in any items above
just contact me :91309685
