View Single Post
  #5  
Old 02-12-2021, 07:23 PM
AG Hybrid's Avatar
AG Hybrid (Adrian)
A Friendly Nyctophiliac

AG Hybrid is offline
 
Join Date: Nov 2009
Location: Toongabbie, NSW
Posts: 1,581
I have both, and I agree with astro744. The 28mm RKE is a novelty eyepiece.
The ES24mm is better in every regard except weight. The 28RKE is still however a fun eyepiece. As mentioned by Mirko the 28mm RKE is actually rather good in slower scopes. Although, I haven't tried it yet in my ED120 which is F/7.5, I'm sure it will be fine. Don't use it in a fast Newtonian though, it cannot handle coma induced aberrations from a fast Newtonian. I distinctly remember the impression of "jumping to light speed".

Col must be trolling recommending this eyepiece for an 8" Newtonian. Your Dob at F/6 is still optically a fast system and will annihilate the image. Everyone has their own sensitivity to coma but objectively speaking there are several choices that are better then the 28RKE for your mention telescope. Meanwhile the ES24 is quite well corrected in a Newtonian at F/5.

I bought the 28RKE when it was very cheap some years ago. Could I recommend it with its current price over an ES24 for an F/6 Newtonian? Only if I was trolling.

Last edited by AG Hybrid; 02-12-2021 at 08:35 PM.
Reply With Quote