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New Rolls-Royce Planetary Eyepiece !

andrew63

By andrew63
in Discussions - Eyepieces

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John

John

Posted
Posted

Pity the photo is of an 8mm but we get the general idea  :smiley:

Interesting that there has always been a 3.2mm in the Burgess / TMB Planetary series - I wonder if they share an optical design with the BST's ?.

I have to admit that I thought it might be a Zeiss or Takahashi or similar when I saw the term Rolls Royce used !. Not that the BST's aren't very decent eyepieces :smiley:  

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Luke

Luke

Posted
Posted

Funny enough, the main gap in my eyepiece collection seems to be in the 3 to 4mm range. My current lowest focal length EP is a 5mm Radian. I think I could do with a bit more oomph for my new 85mm refractor. I tried a 2.5x Powermate and 8mm Delos eyepiece on the Moon low in the sky and it gave a beautiful image. I think I'd get plenty of usage for a 3 to 4mm EP based on that.

John, I initially thought Tele Vue or the like, then I wondered for a second if it might actually be an eyepiece made by Rolls Royce :embarrassed:

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John

John

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I think Alan (Alan Potts) will be posting his thoughts on the Delos 3.5mm and the Pentax XW 3.5mm shortly Luke. That may well be of interest to you  :smiley:

I have eyepieces at 4mm, 3.5mm and 3mm and they all get used a fair amount. I viewed M13 with my 12" dob last night and the 8mm Ethos + 2x Powermate and the view was rather mind blowing :shocked:

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Luke

Luke

Posted
Posted

Thanks, John, I'll keen an eye out for Alan's report. I've just been reading Alan's 3.5mm Delos vs 3mm Radian report...

I've not had a BST yet, they sound very good for the price. I have been impressed by my TS HR Planetary 9mm considering the price (I think it runs my 8mm Radian close away from the edge). But I think maybe I should just splash out on the Delos/Pentax despite the much lower BST price (eye relief sounds good...)

I get the feeling a few extra percent of performance will be worth it to make the most of pushing planets with my 85mm scope, I am loving the convenience of a small frac and have not really observed planets much before at below 100mm of aperture, but I've had some decent views of Saturn and Mars already.

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JamesF

JamesF

Posted
Posted

I wondered for a second if it might actually be an eyepiece made by Rolls Royce :embarrassed:

Machined from solid billet with heavy chrome plating, walnut panelled barrel and finished with a pop-up Spirit of Ecstasy and double-R logo, I shouldn't wonder :)

James

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ronin

ronin

Posted
Posted

Ordered one.

From what was said they have neither Explorer or Starguider on them just ED II.

Best used I expect on a shortish focal length scope where you hope to get a bit more magnification.

I have an ETX-70 of 350mm FL, a GT-81 of 478mm and a Meg 90 of 558mm so hope it will be useful (at times) on all 3.

Do I buy a second one ???

Have a reason for 2, a strange reason but a reason none the less.

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AlexB67

AlexB67

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Posted

Hmm. x186 in the 130p. That might be nice. Not necessary... but nice.

I would say that is generally a bit high too and not needed, nice for moon and  the one exception is mars I found. I think I hade the privilege  of some very good seeing though on a few occasions  a few weeks ago that doesn't happen very often, and magnification due to the smallness of mars really helped me I found to see that extra detail, the heritage was able to deliver that and still delivered enough contrast not to wash out some of that finer detail I was looking for. Suffice it to say I was quite impressed pushing it above 200x on that occasion. :smiley:

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AndyWB

AndyWB

Posted
Posted

I would say that is generally a bit high too and not needed, nice for moon and  the one exception is mars I found.

Yeah, it was lunar I was mostly thinking of. I have used the 6mm SLV with x2 barlow on Mars to, well, reasonable effect. Not as good as the 250px, but you could make out some surface detail. And sometimes on the moon, I just want a big more magnification.

If it was 4mm, that would be a more definite 'yes', though I guess I could barlow the 8mm (I don't like using the barlow much, tbh)...  ...might ponder on it though.

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ronin

ronin

Posted
Posted

Andy, if it were a 4mm I would have been very happy, even a 3.5mm may have been better but at 3.2mm I suspect it may be a bit much on quite a few scopes - still not 100% sure on the ones I have. Suspect it will be good on the GT81, little too much on the Meg90 (but maybe) and quite what will come out of the ETX70 I have no idea. :rolleyes: :rolleyes:

Not easy to predict either. I have a TMB 4mm and the BST 5mm. The BST walks all over the TMB. :eek:

A 4mm would have been a very good focal length, I agree with that.

Will have to wait and see.

Could be very pleasantly surprised, or it could just sit there making up the set. :grin: :grin:

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Pig

Pig

Posted
Posted

Thanks, John, I'll keen an eye out for Alan's report. I've just been reading Alan's 3.5mm Delos vs 3mm Radian report...

I've not had a BST yet, they sound very good for the price. I have been impressed by my TS HR Planetary 9mm considering the price (I think it runs my 8mm Radian close away from the edge). But I think maybe I should just splash out on the Delos/Pentax despite the much lower BST price (eye relief sounds good...)

I get the feeling a few extra percent of performance will be worth it to make the most of pushing planets with my 85mm scope, I am loving the convenience of a small frac and have not really observed planets much before at below 100mm of aperture, but I've had some decent views of Saturn and Mars already.

Luke,

I am going to get the 2.5mm SLV for my 80mm, the 4mm SLV works a treat and the Nagler zoom at 3mm ( now sold) worked a treat so hopefully the 2.5mm should be just about ok

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John

John

Posted
Posted

..... even a 3.5mm may have been better but at 3.2mm I suspect it may be a bit much on quite a few scopes...

It might actually be 3.5mm. There have been quite a number of eyepieces and barlows that don't quite match the stated focal length, eye relief or field of view. 

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faulksy

faulksy

Posted
Posted

Thanks, John, I'll keen an eye out for Alan's report. I've just been reading Alan's 3.5mm Delos vs 3mm Radian report...

I've not had a BST yet, they sound very good for the price. I have been impressed by my TS HR Planetary 9mm considering the price (I think it runs my 8mm Radian close away from the edge). But I think maybe I should just splash out on the Delos/Pentax despite the much lower BST price (eye relief sounds good...)

I get the feeling a few extra percent of performance will be worth it to make the most of pushing planets with my 85mm scope, I am loving the convenience of a small frac and have not really observed planets much before at below 100mm of aperture, but I've had some decent views of Saturn and Mars already.

i had a few of the ts h-rs and found they outgunned the bst,s very easy and they cost the same

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estwing

estwing

Posted
Posted

I think Alan (Alan Potts) will be posting his thoughts on the Delos 3.5mm and the Pentax XW 3.5mm shortly Luke. That may well be of interest to you :smiley:

I have eyepieces at 4mm, 3.5mm and 3mm and they all get used a fair amount. I viewed M13 with my 12" dob last night and the 8mm Ethos + 2x Powermate and the view was rather mind blowing :shocked:

...and there's me thinking I don't need the 8mm ethos!!!??!
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faulksy

faulksy

Posted
Posted

I think Alan (Alan Potts) will be posting his thoughts on the Delos 3.5mm and the Pentax XW 3.5mm shortly Luke. That may well be of interest to you  :smiley:

I have eyepieces at 4mm, 3.5mm and 3mm and they all get used a fair amount. I viewed M13 with my 12" dob last night and the 8mm Ethos + 2x Powermate and the view was rather mind blowing :shocked:

i used my 6mm delos a few weeks ago on m13 and the ring 266x and like you say the views are amazing at that power,would be great through a 6mm ethos :grin: thats my next purchase

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ronin

ronin

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Posted

The BST 3.2mm is very nice with it's purple rings.

Seems bigger (longer) then others, just by a little.

Not that easy to get it back into it's box.

All it says on it is 3.2mm ED II

Not Explorer/Starguider or even BST.

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John

John

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Posted

FWIW I use the 8mm Ethos more than I use the 13mm. It's a really superb smaller DSO eyepiece  :smiley:

Thats the trouble though, whenever I start to think about slimming down my eyepiece collection I can remember having a particularly good view of this or that with the eyepiece in question and get cold feet about parting with it.

Either I lack the ruthless analysis to select the ones to jettison or I do actually have the right set for me now  :undecided:

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