Hi People!
I am Curious as to how many people in this forum own the DSI pro with the filter set, and if they have had the same problems with it that I have seemed to encounter. although still a great little camera for those of us just starting to learn the CCD Craze here is what I have run into
1) filters are exposed to the elements and dew and dust bunnies are a problem unless the owner devises a shield of some sort.
2) you have to refocus with each color filter, Astrodon filters would be better.
3) they have mistakenly made the filterslide for 4 filters R, G, B, & IR.
if you place the IR filter in the slide then your RGB data sets are bloated due to IR, the IR blocker should go in the nosepiece!
and used in conjunction with the RGB filters.
4) a nasty light leak is evident due to the nature of the slide opening and the excessive tolerances incorporated with an adjustable click stop on the camera body for each filter used.
a better approach would be an enclosed filter wheel with a readout of which filter is bieng used. its hard to tell with the current design which filter is in the optical path.
5) the added distance from the chip to the nosepiece thread due to the filter slide bieng installed behind the nosepiece causes problems with focal reduction especially since the IR filter should be used for each colored filter, add this to the nosepiece and then a focal reducer, and bang! too much reduction, resulting in oblong stars at the edges of the field or if you move the Ir blocker to the outside, and the focal reducer to the inside, results in not enough focal reduction.
6) the CCD chip is also semi exposed to the elements and particles fall on to the chip sometimes when sliding the filter slide through its click stops.
I have now resorted to using this great little starter Camera in MONO only, and I have taped up the filter slide opening to prevent light leaks and dust bunnies.
is anyone else having these problems?
Dennis
