SvBony 3-8mm zoom & Tele Vue 3-6mm zoom

[Nightspore]

I was initially concerned that the barrel would be longer than the TV 3-6mm and contact the Baader MaxBright mirror. They are about the same however, very similar to a standard GSO Plossl barrel.

 

Edited February 8 by Nightspore

[StarHugger]

Nice visual comparison, thanks indeed.

[Nightspore]

31 minutes ago, StarHugger said:

Nice visual comparison, thanks indeed.

 

You're welcome. If the clouds ever go away I might even get to compare them and write about it. Watch this space ...

[RT65CB-SWL]

On 2/10/2024 at 10:29 PM, Nightspore said:

 

You're welcome. If the clouds ever go away I might even get to compare them and write about it. Watch this space ...

 

I have and own both and no regrets buying them.

The only subtle differences I have noticed so far with my TeleVue 3-6mm and Svbony 3-8mm are: the ‘extra’ two stops and the wider ‘twist grip’ barrel on the latter.

I cannot find any issues worth mentioning, apart from the AFOV [TeleVue=50deg / Svbony=56deg] and eye-relief of about 10mm for both, which some may find uncomfortable.

Edited February 19 by RT65CB-SWL

[Nightspore]

9 hours ago, RT65CB-SWL said:

 

I have and own both and no regrets buying them.

The only subtle differences I have noticed so far with my TeleVue 3-6mm and Svbony 3-8mm are: the ‘extra’ two stops and the wider ‘twist grip’ barrel on the latter.

I cannot find any issues worth mentioning, apart from the AFOV [TeleVue=50deg / Svbony=56deg] and eye-relief of about 10mm for both, which some may find uncomfortable.

 

Yes, the eye relief is about 10mm. Although considering these EP's are more for planetary or splitting doubles IMO, a 10mm ER is arguably tolerable (for me anyway). 

[Nightspore]

6 hours ago, Nightspore said:

 

Yes, the eye relief is about 10mm. Although considering these EP's are more for planetary or splitting doubles IMO, a 10mm ER is arguably tolerable (for me anyway). 

 

 

My 16mm T5 Nagler (extreme left above) has a 10mm eye relief. It's a nice EP but that ER makes it hard work for rich field. It's also prone to the 'ring of fire' edge colour phenomenon (which tends to exclude it as a lunar eyepiece). I think Al abandoned the T5 series eventually. It was my first Nagler. Despite its obvious faults I still rate it.