|
The fact that you want to take photos with your scope changes everything
regarding choice of scope. The 127 and 130 SLT are on altazimuth mounts which limits you to short exposures [due to a phenomenon called field rotation]. The 127, being photographically very "slow," would be more affected by this than the 130. The 130 has a long tube, which makes it prone to vibration, being mounted on a single arm.
For visual only, they are both o.k. with the 127 being more stable, due
to it's shorter tube. Both are easy to align before use.
For longer exposures you need an equatorial mount, which has to be
aligned fairly accurately on the South Celestial Pole.
raymo
|