Quote:
Originally Posted by astroron
The EZ11 is a Red dot finder 
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I didn't realise either

. I don't feel so silly now

.
Gosh really? I would've thought Orion scopes would have a finderscope, huh.
I thought you were talking about the standard straight thru finders that come with dobs & thought Orion had their own little special name for them

.
Here's the confusion on your first post:
"My 10" dob came with an Easy find II finder scope"
It's not a finderscope.

Finderscopes look like little baby telescopes with cross hairs on them which magnify the sky similar to binoculars. Like the Stellarview pic I posted.
What you have is classed as Red Dot Finder, also called reflex finders as Astro744 mentioned. It's a finder.
Not a finder "
scope"
Peter, as Ron said, there's many reasons why there is a need for a finderscope. Ron mentioned comets (there's often comets in our skies worth taking a look at, currently there's around 5 observable ones thru a 10" dob if you have a good horizon & skies & good observing eyes). There's also novae, supernovae, asteroids and as Ron said, objects that aren't in your data base. It's just a matter of entering the co-ordinates which will put you in the patch of sky- so finder charts, images & a finder are very helpful here.
If you just want to stick to the catalogue in the data base, then no, you probably don't need one.
I've taken a look at what the EZ11 finder is. I have a very similar one on my 4" dob. I completely understand your struggle using it with glasses, as do I. It's like looking down a narrow tube trying to find the red dot.
You can always get a finderscope down the track and if you're any good at drilling holes in the tube, you can keep it with the RDF.
If you haven't used a finderscope before, I honestly don't know if you'd struggle using it to find the star in the sky that you need to align the scope up with. Some people (including me) struggle here as finderscopes magnify the sky thereby showing more stars. With an RDF what you see in the sky naked eye is what you get, as it has zero magnification. So it's much easier to plonk the scope on that star.
So let's just look at replacing the RDF for now as per your original post.
My suggestion would be to either go the Telrad or the square glass type of RDF or what Astro744 mentioned.
A plus with the Telrad is that it's mounted with adhesive tape. So if you do decide to add a finderscope later, you won't be drilling holes. It's a good idea to temporarily secure the Telrad with electrical tape wrapping it around it and the tube until you are well and truly happy with where it sits,
before you adhere it on. The glue on that tape is quite strong.
But...
I don't know that those circles on the Telrad will benefit you much

as you will be relying on your sync scan to find things.
I'd also like you to consider this point....
A square glass RDF (guys, is there a name for this type lol) is much easier to use at objects close to zenith than the Telrad. With the Telrad, aiming it near zenith, you have to contort yourself to look up that long tube to find the dot. And that's why when they sell the dew shield with an inbuilt mirror on hinges that you can set the angle to, which helps counteract this problem. I paid an extra $39 for that dew shield from Bintel a few years ago.
Also, it takes a lot for my square glass RDF to dew up. It's easy to look thru no matter what angle as well. It also has brightness adjustment and a choice of dot, cross etc.
So just in my own personal experience of using having 3 RDFs, I will give the square glass type the big thumbs up.
Decisions... Decisions.... I hope we have confused too much.
I've just tried to upload the pics of my set up but I've encountered problems. As soon as the moderators have fixed up the issue, I will do so.