Upgrade at 24mm for SCT

[Don Pensack]

5 hours ago, stormioV said:

I have just noticed these

https://www.firstlightoptics.com/ursa-major-eyepieces/ursa-major-fmc-flatfield-eyepiece-25mm.html

Would this be to similar to what I already have? 

I'm still thinking uff 24mm or es68 24mm would be better option.

Argh! Another new eyepiece!

These are the same eyepieces sold by many companies as "Premium Flat Field" eyepieces.  FLO is selling them at a good price.

[Zermelo]

On 18/04/2024 at 04:33, Don Pensack said:

The Altair Astro version is heavier than 331g.  In an early thread about the green eyepieces, someone quoted the actual weight, but, alas, I can't remember what it was.

The APM, with aluminum lower barrel, is 331g.

I don't know why I recorded it wrongly in my spreadsheet. 428g it is.

 

[LondonNeil]

On 16/04/2024 at 19:22, stormioV said:

 

It was hyperion for wider fov. Morpheus would be better optically.

I'm confused.  Morpheus fov is 76⁰to the Hyperion 68⁰.

[stormioV]

It would allow me to view a  slightly larger piece of the sky at a lower magnification.

[Don Pensack]

The 24mm Hyperion has a true field 33% wider than the 17.5mm Morpheus.

If you have a 2" focuser, though, a 30mm UltraFlatField makes a better jump from the 17.5mm Morpheus and yields a true field 68% wider than the 17.5mm Morpheus.

[stormioV]

Im all set at that range (I think?) with my ES68(maxivision) 34mm. For me with my set up this is fantastic.

[Louis D]

16 hours ago, LondonNeil said:

I'm confused.  Morpheus fov is 76⁰to the Hyperion 68⁰.

Nothing to be confused about.  Morpheus has wider AFOV while Hyperion has wider TFOV.  That's all.