What are the advantages/disadvantages of the SN vs the SCT, other than cost?
Mary
Mary
schmidt-newtonian vs sct
Started by mary hofer, 09/24/2002 04:22PM
Posted 09/24/2002 04:22PM
Opening Post
Posted 09/24/2002 04:32PM
#1
The principle advantage of the SN is a wider field of view (FOV) than the f/10 SCT with better coma correction than a classic fast Newtonian, say f/4 or f/5. With spherical first surfaces, in theory the SN's optics are cheaper to produce with precision. The SCT retains the form factor advantage for weight, size, and eyepiece position. Both designs require frequent collimation for best performance.
Meade has produced SNs in the past with mixed results. The old fork armed SNTs were not very successful, but the LXD series is an imrovement.
Meade has produced SNs in the past with mixed results. The old fork armed SNTs were not very successful, but the LXD series is an imrovement.
Funding Member
