|Paul B's 16" F4.5 telescope all packaged up and ready to ship.|
|The OTA rings for Robert B's 8" F6. Robert lives in Los Angeles, California.|
|An 8" off-axis mask for solar observations. I used the telescope today.|
|Here's a "hand held" camera shot at the eyepiece of a 20mm TeleVue Plossl.|
The circled area shows an extensive group of sun spots.
|An enlarged view of the sunspots. Looking at the lower left sunspot,|
you can clearly see the umbra and penumbra.
|Telescope profile with counter-weight system for solar filter.|
The dew shield has been removed.
|Here you can clearly see the counterweights for the solar filter.|
I usually use 1.25# weights. Three weights did the job.
|The "final touch" on Paul's 16" F4.5 telescope is a solar/sub-aperture|
mask for his telescope. Here, the mask is "closed." The
mask can be rotated such that the opening is "between" the
spider vanes -- an "unobstructed" telescope!
|The top of the mask rotates to reveal one of 2 openings.|
This view shows the solar filter.
|The mask is rotated into the "sub-aperture" position. |
The diameter of the opening is 6", the focal length of the telescope is 72" --
so, an F12 -- perfect for lunar/planetary views.
|Manoj, from Campbell, California had me leave his 10" Ultra "unfinished". He since applied how own choice of a custom color with some beautiful touches. I like the "black edges" and hardware. Nicely done....|
|16" F4.5 for Paul in Naperville, Illinois is 95% complete. I need to add the|
Telrad, finder and DSC platform. The post to the right is the DSC stalk.
|The rear of Paul's telescope showing the all aluminum 6-point flotation mirror cell.|