Just acquired my 16" Skywatcher Dob (1800mm focal length), and looking to start my 2" eyepiece collection. I'm looking at Explore Scientific and Televue, any experiences or recommendations on size or particular model is appreciated. What sizes are most common with a scope of this size and focal length?
Thanks in advance
Hello and congratulations on your new 16 inch.
I've had my 16 inch F/4.4 for more than 10 years, there's a number of ways one can go here. A few questions:
How much you have budgeted for eyepieces?
What eyepieces do you currently own?
Is your scope GOTO or are you star hopping and tracking manually? That's me, star hopping and tracking manually..
What I think:
- Eventually you will want a coma corrector and eyepieces that range from something like 30mm to 5 mm along with a 2x Barlow.
- The TeleVue eyepieces are the best eyepieces, Explore Scientific and other similar eyepieces are good solid eyepieces and can be better values. For some observers, the difference is quite noticeable, for others, there is little difference. I started building my eyepiece collection before Explore Scientific and others were available. I built it around my 12.5 inch and the 16 inch F/4.4 and eventually my 4 inch F/5.4 TeleVue refractor. My eyepieces are basically all Televue, my friend TomyKay has a set of Explore Scientific eyepieces. Certainly the ES eyepieces are keepers and they're good enough that you won't feel like you're missing anything with them.
- With a fast Dob, you will eventually want eyepieces like the Ethos's, the Naglers, the Delos, (either those eyepieces or eyepieces modeled after them). The wide field of view that is clean and sharp across the field, that's what these eyepieces provide.
- If I were buying one 2 inch eyepiece to start with, it would probably be the 31mm Nagler or the 30mm Explore Scientific. These are good low power, widest field of view eyepieces that are good as finder eyepieces as well as just the big, bright views they provide. Without a coma corrector, they provide a 1.3 degree TFoV in your scope. I like those views.