[yusufcam (Colin)]

Originally Posted by casstony

RC's are used less for visual due to the large secondary obstruction (50% on the 6") which reduces contrast. The obstruction becomes proportionately smaller in the larger size RC's, though still large enough to reduce planetary contrast, but probably doesn't have much impact on deep sky observing.

Mak's and SCT's are both good visual scopes with the quality of the particular sample being more important than the design. The SCT is easier to collimate since there is only one element that can be collimated (the secondary) whereas the primary can also be collimated on a MCT.

makes sense...

thanks