12-27-2001

The objectives have arrived.  The were well packed and look great.  Hans was kind enough to include some "Sky Objectives" hats.  I took these shots to give the feel for how these look.

Note the great red hat!  The only bad thing I noticed was the shiny screws sticking down into the light path.

Well, I could not leave well enough alone.  I had to see just how one of these cells was constructed.  So I got out my trusty screwdriver and went to town.

I think the cell design is pretty clever.  There are three spacers glued in place that hold the lens in the center of the coupling.  A reducer bushing is inserted from the front and held in place with three screws.  This restrains the front of the lens and provides a nice little adapter to slide on another coupling to make a dew shield.  A piece of PVC pipe material is split and adjusted to be a force fit into the rear of the cell.  This is pressed into place after the doublet is inserted and held in place with three screws.  Everything inside is painted flat black.  Simple Eh!