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2" eyepieces

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17 years 1 week ago #54662 by jhoare
Replied by jhoare on topic Re: 2" eyepieces
The new 24mm Hyperion should definitely knock the socks off a 20mm Plossl, not to mention a 25-26mm. I received mine on Monday but so far have only been able to use it in a spotting scope in daylight so I can't tell you any more just now. The field stop is approximately 29mm so it is the longest focal length practical with that particular eyepiece design and a 1.25" barrel.

If I were Baader I would consider replacing the current 21mm Hyperion with an eyepiece of the same design as the 24mm because the original does not appear to achieve the claimed 68 degree field. But it's still a good eyepiece for the price.

According to the OPT website the Baader aspherics (31mm and 36mm) have a 32mm field stop when fitted with the specially shaped 1.25" barrel and the FOV is less than 72 degrees. The field stops are larger when fitted with a 2" barrel but may be vignetted by a narrow baffle.

A 32mm eyepiece with a normal 1.25" barel will either be of a design that has a field stop of 29mm or less, or will effectively be vignetted by the barrel.

John

Better that old people should die of talk than to have young people die in war.

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17 years 1 week ago #54742 by EPK
Replied by EPK on topic Re: 2" eyepieces
I really can't recommend the 2" 27mm Panoptic too much.
Expensive, yes, at £270, but it'd be a lifelong possession.
The smallest 2" eyepiece I have is the 17mm nagler, which is a heavy brute, but a great compromise between FOV (at 82 degrees) and magnification.

Meade 16" Lightbridge
Tal 6" Newtonian
Meade LXD75 6" Newtonian
Tal 4" Refractor
Panoptic and Nagler eyepieces.
Attitude and Smartassery

For forever and a day I shall chase that white whale - Captain Ahab

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17 years 6 days ago #54755 by johnomahony
Replied by johnomahony on topic Re: 2" eyepieces

The new 24mm Hyperion should definitely knock the socks off a 20mm Plossl, not to mention a 25-26mm. I received mine on Monday but so far have only been able to use it in a spotting scope in daylight so I can't tell you any more just now. The field stop is approximately 29mm so it is the longest focal length practical with that particular eyepiece design and a 1.25" barrel.

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The Baader 24mm Hyperion got a great write up on the Cloudy nights reviews
www.cloudynights.com/item.php?item_id=1726

The Lord giveth, the Revenue taketh away. (John 1:16)

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17 years 6 days ago #54756 by michaeloconnell
Replied by michaeloconnell on topic Re: 2" eyepieces

I really can't recommend the 2" 27mm Panoptic too much.
Expensive, yes, at £270, but it'd be a lifelong possession.
The smallest 2" eyepiece I have is the 17mm nagler, which is a heavy brute, but a great compromise between FOV (at 82 degrees) and magnification.


Both fine eyepieces. The 17mm T4 is just superb. Last a lifetime.

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