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  #21  
Old 17-02-2012, 07:37 PM
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Peter Ward
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Originally Posted by Paul Haese View Post
Nice Peter, but when are you going to set up all this gear at a dark site and do remote imaging? Seems a waste really to have three fine telescopes in Sydney that could be doing deep work.
Sorry Paul, I missed this. The short answer is no.

I intend to use the RHA for narrow band, so the point is moot, as you can shoot NB under a full moon with virtually no ill-effects.

Similarly with the RC14, on a non-full Moon night, the sky flux per arc sec when using around 3.0 metres FL even from my not-too-good location simply means I have to use, decidedly longer exposures than a dark site, .....but it is possible to get there

Last edited by Peter Ward; 17-02-2012 at 11:00 PM. Reason: Typo.
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  #22  
Old 17-02-2012, 08:55 PM
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Impressive sharp wide field there Peter.
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  #23  
Old 17-02-2012, 08:56 PM
Nicola (Nicola)
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Excellent first light, can't wait to see what you can get with your puppy.
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  #24  
Old 17-02-2012, 09:04 PM
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There's certainly some game-changing hardware coming to life in Aus lately. Thanks for sharing first light with us Peter.
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  #25  
Old 17-02-2012, 09:40 PM
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Peter Ward
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Thanks for sharing first light with us Peter.
No problemo.

Quote:
Originally Posted by Nicola View Post

Excellent first light, can't wait to see what you can get with your puppy.
I'll probably have to say "Sit" & "Stay!" a few times



Quote:
Originally Posted by DavidU View Post
Impressive sharp wide field there Peter.
It's an interesting beastie for sure. I think the RCOS-14 does better in resolution & faint fuzzies, but for extended objects I can see a case for aperture and a fast F-ratio.

By the way, as a visual scope...nup..tried it out of curiosity with a 20mm Nagler..

..the 50% central obstruction is a bit like a Gorilla in the room..a little hard to miss!
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  #26  
Old 17-02-2012, 10:02 PM
Mighty_oz (Marcus)
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Originally Posted by Peter Ward View Post

The price is on AP's website....call it $A, add about 20% for shipping and GST to get one to the land of Oz.
At that price u could buy Mike's scope with a bit of change.
Wonder how this will compare to Mike's new scope ? Do i smell a shoot-out coming? Hey that would be great
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  #27  
Old 17-02-2012, 11:22 PM
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At that price u could buy Mike's scope with a bit of change.
Wonder how this will compare to Mike's new scope ? Do i smell a shoot-out coming? Hey that would be great
Hey, if you want to make an omelette, you gotta break some (golden ) eggs.

Mike's new scope is producing some good results.

While they are both indeed 12" F3.8 telescopes, they are also very different beasties...eg, no spider vane diffraction patterns, smaller physical size, flatter field, but more complex optics in the RHA... but this doesn't come for free!

That said, both scopes are pushing seeing limits, so a "shoot out" would most likely reflect seeing on the night...rather than any limitation of either instrument.

I'm simply looking forward to getting my system up and running with a filter wheel in place, and imaging our southern-sky gems.
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  #28  
Old 17-02-2012, 11:41 PM
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No offense to Mike but a shoot out is likely to be a one sided affair.

AP RHA is bound to be a collectors item once Roland retires and that can't be too many years from now.

RHA has the advantage of no diffraction spikes (and we know how Roland feels about those - what does he call them - deer eyes or truck headlights through a screen door! - I don't mind them but I prefer none).

It also has the advantage of rigid type construction so flex is not so likely.

RHA is not the same as a 12 inch APO but not far away from it and definitely infinitely more practical and compact.

A desirable scope for sure and the modern epitome of scope development.

You're a lucky man.

Greg.

Last edited by gregbradley; 18-02-2012 at 08:55 AM.
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  #29  
Old 18-02-2012, 12:53 AM
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Quote:
Originally Posted by Peter Ward View Post
Sorry Paul, I missed this. The short answer is no.

I intend to use the RHA for narrow band, so the point is moot, as you can shoot NB under a full moon with virtually no ill-effects.

Similarly with the RC14, on a non-full Moon night, the sky flux per arc sec when using around 3.0 metres FL even from my not-too-good location simply means I have to use, decidedly longer exposures than a dark site, .....but it is possible to get there
Yes good point.
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  #30  
Old 18-02-2012, 01:28 AM
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marc4darkskies (Marcus)
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Hmmm ... looks like you might have a keeper there Peter! Those stars look pretty round and tight! Almost, dare I say, Tak sharp? But ... can you show us a 400% crop of each of the corners please!

Cheers, Marcus
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  #31  
Old 18-02-2012, 11:12 AM
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Originally Posted by Mighty_oz View Post
At that price u could buy Mike's scope with a bit of change.
Wonder how this will compare to Mike's new scope ? Do i smell a shoot-out coming? Hey that would be great
It is a no brainer that the AP RH is a beautiful scope.

But in the end, any "shoot out" would be lagely semantics

We all know Astro Physics and their level of perfection but to be fair, apart from the comparative delivery times that are likely, for the price of one AP RH you could get yourself one AG12 and one beautiful AP1200 mount.

Horses for courses as they say

Mike
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  #32  
Old 18-02-2012, 01:57 PM
Stevec35 (Steve)
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To add to all the positive comments, that's an excellent first light! there are obviously going to be great things coming from this scope if the La Nina ever goes away.

Cheers

Steve
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  #33  
Old 18-02-2012, 02:43 PM
clive milne
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Quote:
Originally Posted by strongmanmike View Post
But in the end, any "shoot out" would be lagely semantics
My sense of sentimentality would insist I cheered for the underdog if there were a challenge of pixels at dawn.

Quote:
for the price of one AP RH you could get yourself one AG12 and one beautiful AP1200 mount.
You could almost get an AP3600 mount (with a GSO newtonian ota) for that amount of cash as well.

Air freight might be a little pricey though.
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  #34  
Old 18-02-2012, 08:48 PM
Hagar (Doug)
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Very impressive Peter.
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  #35  
Old 19-02-2012, 01:54 AM
Ross G
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An amazing telescope Peter.

I didn't know it existed.

I am looking forward to amazing photos from it.

Ross.
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  #36  
Old 19-02-2012, 01:55 PM
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Peter Ward
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Hmmm ... ... can you show us a 400% crop of each of the corners please!

Cheers, Marcus
Little hard to do right now. North of the equator again
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  #37  
Old 19-02-2012, 02:04 PM
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Peter Ward
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It is a no brainer that the AP RH is a beautiful scope.

Mike
Can't argue with that....and sure there more affordable solutions.

Neither scope will be doing much until this dammed weather improves!
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  #38  
Old 21-02-2012, 08:45 PM
Martin Pugh
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Congrats on the new scope Peter...very jealous. That is an awesome piece of kit. I was admiring it at AIC 2009.

cheers
Martin
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  #39  
Old 21-02-2012, 09:37 PM
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Peter Ward
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Originally Posted by Martin Pugh View Post
Congrats on the new scope Peter...very jealous. That is an awesome piece of kit. I was admiring it at AIC 2009.

cheers
Martin
Thanks Martin. I suspect Roland might need to be canonised in the optical world !

You haven't missed much south of the equator....unless you are into SCUBA diving..you can do that pretty much anywhere on the east coast these days
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