20mm or 4 mm, bare with me on this..

[Moonlit Night]

I have 5 eyepieces. A mixture of Radians and Delites (No Radian bashing please) with a 32mm TV Plossl. They range from 5mm, 6mm, 8mm, 13mm and 32mm. The 32mm gives me x27 and the 13mm gives me x67.

 I am considering buying a 6th eyepiece (although I am questioning if I actually need one) The I question is do I buy a 18/20mm eyepiece or go for a 4mm for a little more power for planetary. 4mm would give me x220.

Thanks for your replies in advance.

Edited February 11 by Moonlit Night

[mikeDnight]

What telescope are you using? A 3 to 6 zoom may be nice if you want to stay with TeleVue. Or a 3 to 8mm SvBony Zoom if you don't want to be ridiculed for paying TV prices.

[Moonlit Night]

Hello. I use a TeleVue 102. I already have really good 5 mm and 6 mm eyepieces. I don’t like zooms, especially with a 50 degree fov with an un-driven mount. I use a Gibraltar HD4, a lovely thing and without doubt the most solid mount I ever used. 
 

But I am guessing perhaps a 4 mm is the way to go? 

Edited February 11 by Moonlit Night

[mikeDnight]

Your scope will play happily at 220X and over on a night with good seeing, so I'd say grab yourself a 4mm. 

[Moonlit Night]

Just now, mikeDnight said:

Your scope will play happily at 220X and over on a night with good seeing, so I'd say grab yourself a 4mm. 

Many thanks Mike

[dweller25]

x220 will be good for Mars 👍

Edited February 11 by dweller25

[Moonlit Night]

10 minutes ago, mikeDnight said:

if you don't want to be ridiculed for paying TV prices.

I only ever buy second hand gear. Good for the wallet, married life and most importantly our home planet. Buying anything from new should be avoided at all costs in my book. 

[Moonlit Night]

2 minutes ago, dweller25 said:

x220 will be good for Mars 👍

That’s kinda my thinking too. 

[Moonlit Night]

10 minutes ago, Moonlit Night said:

 

Oopppps

Edited February 11 by Moonlit Night

[mikeDnight]

13 minutes ago, Moonlit Night said:

 

There is the binoviewer option, where you can use longer focal length eyepieces and a barlow or GPC on the nose of the viewer to amplify the image (very comfortable as you maintain the long eye relief. In 2016 I observed mars in this way, and the scope -a Tak FC100DC - was mounted on an AZ4.

[Moonlit Night]

11 minutes ago, mikeDnight said:

There is the binoviewer option, where you can use longer focal length eyepieces and a barlow or GPC on the nose of the viewer to amplify the image (very comfortable as you maintain the long eye relief. In 2016 I observed mars in this way, and the scope -a Tak FC100DC - was mounted on an AZ4.

Unfortunately 102’s are not binoveiwer friendly. I have used them in the past and to be honest I just didn’t get on with them.