My scope is a Skywatcher 8" Dobsonian. I pulled the trigger on the 8.8 eyepiece. I'm thinking about getting a second one as well. I'm looking at the 4.7 but concerned it might be too much magnification and only be good on perfect seeing nights. The 6.7 is too close to the 8.8 to me. Another option is the made 5.5 ultra wide which seems to have good reviews. Any advice?
I already have other lower power plossl eyepieces a 32mm, 25mm, 12.5mm and 10mm
Welcome to Cloudy Nights!
You have picked a great line of eyepieces to build upon. The 6.7 would be my recommendation.
Until recently I had an Orion XT8i. Sold it about a month ago. Orion and Skywatcher are both built by Syntha, so the scopes are extremely similar.
Here is the eyepiece set I built for the XT8i over time.
Orion XT8i – 8”/203 mm manual Dob Newtonian, 1200 mm FL F5.9
These were used almost every session 2XB = 2X Barlow Lens
- 38 mm/70 31.5 and 2.2 degrees FOV 2”
- Meade 82 20 mm/82 60X and 1.37 degrees 2”
- Baader Hyperion 8-24 zoom 50X to 150X (My most used 1.25” eyepiece in this scope)
- Baader Hyperion 8-24+2XB 100X to 300X (Used almost every night)
I built this single FL eyepiece set in parallel with the zoom for those occasions where I wanted or felt the need for a wider FOV than the zoom provides, but the zoom was always my primary 1.25" eyepiece in the XT8i.
ES 8.8 mm/82 136X and .6 degrees I usually used the zoom but this would get a lot of use if I didn't have the zoom.
ES 6.7 mm/82 179X and .45 degrees This was often the highest magnification I could handle. This was often where I would move from the zoom to the 82 degree eyepiece. I could go to this almost every night. It got lots of use.
Meade 5.5 mm/82 218X and .37 degrees Frequent used but not every night. Often conditions were not good enough. A better step than going to the 4.5 or 4.7 mm eyepiece.
Meade HD60 4.5 267X Rarely used. Typically I could not go this high. Maybe a few times a year. I eventually sold it as it just gathered dust. The ES 4.7 would be comparable with a little wider FOV.
ES 8.8+2XB (4.4 mm equivalent) 272X and .3 degrees I have it if I want it, but super rare I could use it.
ES 6.7+2XB (3.8 equivalent) 358X and .22 degrees Never able to go this high except on the Moon and only under excellent conditions.
Meade 5.5+2XB (2.5 mm equivalent) 436X and .18 degrees I think I tried it once.