How does the Lunt SunLock work?
The Lunt SunLock projects a bright alignment dot onto a glass reticle plane, visible from above and forward of your eyepiece. To align your telescope, you simply adjust the scope's position until the projected sun dot is centered on the reticle. This lets you center the sun without guesswork or dangerous squinting.
Will the Lunt SunLock fit my Lunt LS60THa telescope?
Yes, the Lunt SunLock is designed for direct mounting on Lunt solar telescopes like the LS60THa, as well as the LS40, LS50T, LS80THa, and LS100THa models. It uses the existing mounting points on the telescope's clamshell.
What do I need to mount the Lunt SunLock on a telescope with tube rings?
For telescopes that use a ring-style mounting system instead of a clamshell, you will need the Lunt ADPSOL adapter plate (sold separately). This adapter provides the correct interface to attach the SunLock to the top of a tube ring.
How does the 3-point internal alignment system on the SunLock improve observing?
The alignment is controlled by internal set screws, not external knobs. This "set-it-and-forget-it" design means that once the SunLock is co-aligned with your telescope, it holds that alignment securely. You can pack up and transport your scope without worrying about the finder getting knocked out of collimation, saving you setup time at your next session.
Can I use the Lunt SunLock with a non-Lunt solar telescope?
Yes, the SunLock is highly versatile. Its mounting base features a slot that accepts both 1/4-20 and M6 screws and is designed for a standard 1 inch / 25.4mm hole spacing. This makes it compatible with Tele Vue slots and many other mounting systems from various manufacturers.
What is the advantage of the Lunt SunLock over projecting the telescope's shadow?
Projecting a shadow is an imprecise method that can be difficult to judge, especially with complex telescope shapes. The SunLock provides a distinct, bright dot on a clear reticle, which is faster and far more accurate. This ensures the sun is perfectly centered in your eyepiece every time, letting you spend less time hunting and more time observing.
