If your looking for a reasonable performer at a cost less than those listed above the Stratus and Hyperion eps offer 20mm of eye relief and can be sourced in 3.5mm (although the Hyperion 3.5mm is now dicontinued but you will find second hand ones), 5mm, 8mm, 10mm etc. focal lengths. These are usually around the $200 mark in Australia (cheaper in the States) but you can pick these up for $160 delivered (Petes Astro or Aus telescopes) or between $90-120 second hand. As Matt said the ES eps are very good, I have a 24mm 68 and it is my most used ep. Cheers.
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