Seems like a really good scope! I'd like to hear from those of you who have one, as well as those of you who will try to talk me out of it! It will be used for imaging, as well as visual.
Thinking of a Sky-Watcher Esprit 100
Posted 09 July 2020 - 06:13 AM
I don't think many will try to talk you out of an Esprit. It's an excellent scope at a reasonable price. Just be aware that Esprits are a little heavy for their size.
Posted 09 July 2020 - 09:09 AM
I have the 80 and 120. Love them both. I use the 80 for ap and 120 for visual.
The 100 is a well respected ota. About the only thing I have heard some 100 owners say is the need to replace the stock 4" long dove tail with a 6-7" one from ADM to have better balancing capability.
- gnowellsct likes this
Posted 09 July 2020 - 08:02 PM
I have the 120, and it's excellent, the 100 has the same type of focuser which I have found better than expected optics are top notch with no false color and tack sharp. Finish is superb. Only criticisms , The dew shield should have 3 bolts to hold it in place with two it rocks around though it does not slip. They need to drill and tap two holes on the flat focuser base to accept auto focuser brackets.
Comes with matched FF (in USA) and a really good locker type case.
Posted 10 July 2020 - 10:33 PM
I got an Esprit 100 last year after only about 3-4 months of trying AP with my ES ED102CF. I love the Esprit and it is massively better than the ED102CF, with a MUCH better focuser and better glass (w/o the CA of the ES).
I like the Esprit's FL much better than my ED102, as many more nebula targets fit. I think 700mm FL is more a tweenier FL, with most nebulas needing a shorter FL, and most galaxies needing a significant longer FL. I got an EdgeHD 925 w/ 0.7x FR for the small targets to compliment my Esprit 100. Most of my nebula shots on the Esprit use a 0.75x FR for a 413mm FL and fast f/4.13. For very large targets, I use even shorter FL camera lenses, such as Canon EF300 f/2.8L, Canon EF70-200 f/2.8L, or Samyang 135mm f/2.0. I mainly image with my ASI183mm-Pro, which is relatively small with 2.4u pixels. With a larger APS-C sensor, the Esprit 100 at 413mm could fit larger targets, such as M31, and only the very largest, such as entire Cygnus Loop/Veil Nebulas or combined Heart & Soul Nebulas, needing camera lenses.
My decision was between, Esprit 80, Esprit 100, and Stellarvue SVX80T-3SV. I picked the Esprit 100 over the Esprit 80, for the following reasons:
1) the Esprit 100 has a much better way of attaching to a mount, with solid rings and Losmandy rail, instead of the Esprit 80's integrated Vixen foot. Besides having the more solid Losmandy rail, the rings allow for a much more secure way to a guidescope, e.g. add a small Vixen rail on top and attach the guide scope on top; MUCH better than attaching the guide scope to the small finder bracket.
2) With a FR/FF, the Esprit 100 is basically a faster, higher resolution 80mm. I use the TSAPORED075 for a 413mm FL at f/4.13. Riccardi has an equivalent FR/FF, and Starizona has an even more extreme 0.65x. This gives me two different FLs, 550mm or 413mm, depending on the target.
3) Esprit 100's focuser is more robust, and is the same as on the Esprit 120 and 150.
4) Esprit 100 image circle is 40mm vs. the Esprit 80's at 33mm.
With the Esprit 100 and my ASI183, I can image at 0.9"/px (native 550mm) or 1.2"/px (w/ 0.75x, 413mm).
I picked the Esprit 100 over the Stellarvue SVX80T-3SV, because it is faster, and I preferred its FL, especially with the 0.75x FR/FF. Also, Stellarvue increased their price by $300 in late 2018, its availability was sketchy, and I got a very good price on a new Esprit 100 for only $100-$200 more than the Stellarvue SVX80T-3SV.
The Esprit 100 is built like a tank and is heavier than most 100mm scopes. I think the EQ6-R is about the minimum mount for an Esprit 100. I use a G11 mount, which is a piece of cake.
Posted 11 July 2020 - 04:00 PM
There doesn't seem to be a lot of discussing the Esprit series in these fora and I would hazard the guess that it's because they do what they're supposed to do. They get good marks at NEAIC. The very short focal ratio of the Esprit 80 is striking in comparison to the f/7.7 mainly visual use Vixen ED81s, which I'd venture to say would win hands down as a visual observing instrument.