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  #21  
Old 10-03-2013, 08:56 PM
Wavytone
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Profiler,

From the perspective of the technology of say 2000 the SXD and starbook I had made sense, and I agree technology has moved on, but Vixen seem notably "missing in action" when it comes to new products for mounts or decent eyepieces.

Their mount technology is 15+ years old. Archaic, frankly.

The LV and LVW eyepieces are an excellent but 20 year old design, the LVWs were effectively killed off by Televues Naglers, Paragons and the ultra-wides.

The NLV eyepieces are just LV's in an inferior plastic housing. Very ordinary but well made eyepieces.

Their only recent product is the 200mm astrograph, for which Skywatcher having no equivalent.

Skywatcher is making cheap scopes and mounts and is clearly still finding room for improvement. More than I would say for Vixen, which IMHO is stuck with an ageing management unable up with new ideas. If you look at say iOptron and other newcomers there is clearly still room for useful innovation.
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  #22  
Old 10-03-2013, 09:04 PM
Profiler (Profiler)
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Hi Wavytone

I think most of us read your message the first time but unfortunately you appear to have missed my point and thus not answer the question which was actually posed.

That is - in summary:

Are your views based on using one of the 1st generation mounts (eg SXW/SXD) with the current 2.3 version of Starbook? - Yes or No?

Or, in the alternative:

Are your views based on using either of the current generation Vixen mounts (ie SXD2 or SXP) which both use the totally new Starbook 10 - Yes or No?

PS
Imitation is often viewed as the greatest compliment so I suppose Vixen should be flattered as the smaller Ioptron EQ mount is suspiciously similar to a Sphinx design and the larger one has an uncanny resemblance to an AP mount.
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  #23  
Old 10-03-2013, 09:08 PM
Wavytone
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Later version of SXD and Starbook.

The SXD was mechanically inadequate IMHO. Maybe I just bought something I shouldn't have - from the typical use I gave it, it was less than ideal and I rapidly hated it.

If you have one and it works for you - in the role you want, fine, good luck to you.

Last edited by Wavytone; 10-03-2013 at 09:33 PM.
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  #24  
Old 10-03-2013, 09:14 PM
Profiler (Profiler)
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I am sorry - I am not clear on what you mean by "later" version?

Did you sell your Vixen before version 2.3 was released in 2011?

If so - then I guess that means you werent using the 2.3 version and it doesn't sound like you have any experience with the new mounts
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  #25  
Old 10-03-2013, 09:35 PM
Wavytone
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Bought and sold in 2011. I don't recall the version.

Anyway.... As the recent thread from Sydney Observatory shows - analyse your needs very carefully because the solutions others are happy with may be inappropriate for what you want to do.

I had sold all my gear long ago in 1990 and looking to put together a new setup from scratch after a long hiatus, went with the SXD on the recommendation of someone I knew, without thinking about it more carefully. I was dubious from the outset about the size of the worm wheels vs the aperture of my scope and as far as I'm concerned the old rule still stands - their diameter should be no less than 50% of the aperture. Anything smaller will be wobbly. Plus the tripod was too flimsy IMHO. I know many of you break these rules with your gear but I wasn't impressed.

Mistake was mine. Also my eyesight has deteriorated after 20 years, more than I realised, to the extent that in the dark I effectively can't use a Starbook of any vintage, though a Synscan handset or some Astro apps on an iPad are fine.

Last edited by Wavytone; 10-03-2013 at 10:51 PM.
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  #26  
Old 10-03-2013, 11:00 PM
Kunama
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Wavetone, I am curious what does the discussion about LVs, LVWs and SXD have to do with the original question posed by Lewis?
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  #27  
Old 10-03-2013, 11:04 PM
Wavytone
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Quote:
Originally Posted by Kunama View Post
Wavetone, I am curious what does the discussion about LVs, LVWs and SXD have to do with the original question posed by Lewis?
My point about vixen is a significant lack of innovation. They came up with some good products in the '90's but after that almost nothing. Their mounts are old tech.
Skywatcher is still coming up with new products, mounts in particular. IOptron, Meade, even Celestron I'd have to say have done more development.

As for Questar - perfect long-focus optics but unsuited to modern digital cameras, in an OTA and mount which are superbly crafted works of art - if you are happy with 1970's tech - no stepping motors, no fast slewing, no autoguiders, no GPS nor encoders.

Last edited by Wavytone; 10-03-2013 at 11:27 PM.
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  #28  
Old 10-03-2013, 11:40 PM
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Quote:
Originally Posted by Wavytone View Post
My point about vixen is a significant lack of innovation. They came up with some good products in the '90's but after that almost nothing. Their mounts are old tech.
Skywatcher is still coming up with new products, mounts in particular. IOptron, Meade, even Celestron I'd have to say have done more development.

As for Questar - perfect long-focus optics but unsuited to modern digital cameras, in an OTA and mount which are superbly crafted works of art - if you are happy with 1970's tech - no stepping motors, no fast slewing, no autoguiders, no GPS nor encoders.
How did you find the GP-D2 for accuracy, how was the PE?
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  #29  
Old 10-03-2013, 11:47 PM
Wavytone
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I had an SXD, not a GP-D2. PE wasn't anything to rave about, many here were clearly doing a lot better with EQ5 and EQ6 mounts carrying much larger scopes than mine, to the extent what I had was clearly a waste of time hence sold it quickly. As far as I was concerned it was good enough for visual observing, maybe a beginner getting toes wet in AP with a small scope, but not for routine AP where you expect it to "just work" reliably 90% of the time at focal lengths of 800mm. I'm not interested in spending thousands on gear and trips to dark sites - when the weather permits - to come back with bad photos.
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  #30  
Old 10-03-2013, 11:53 PM
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Quote:
Originally Posted by Wavytone View Post
I had an SXD, not a GP-D2. PE wasn't anything to rave about, people seemed to be doing a lot better with EQ5 and EQ6 mounts carrying much larger scopes than mine, to the extent what I had was clearly a waste of time hence sold it quickly. As far as I was concerned it was good enough for visual observing but not AP at focal lengths of 800mm.
I was under the impression that an EQ5 was a Chinese copy of the Vixen GP-DX and that the GP-D2 is an improved version of the DX.
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  #31  
Old 11-03-2013, 12:01 AM
Wavytone
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Well either way, the results I got were disappointing, quite frankly. I had issues with flexure in the mount which I concluded was ultimately due to the diameter of the worm gears being hopelessly inadequate for the load they were carrying, the tripod was flimsy in any wind (I use exposed sites), poor tracking (PE) and the Starbook which I found infuriating to use in the dark, plus the business of keeping the axes locked and slewing all night which I hate since it didn't have dual encoders. Drove me nuts frankly. I'd have swapped for an EQ6 with WiFi and iPad long ago, the only thing that stopped me was the news of the AZ-EQ6 or EQ7 (depending which country you are in); currently I'm waiting to see what issues people have with these, and want to try one before buying one.
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  #32  
Old 11-03-2013, 07:43 AM
Profiler (Profiler)
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I am not sure what this all means but I took a quick look in the archives for sold Vixen mounts and found a SXW sold by Wavytone - but it wasn't sold in 2011 but 2 years earlier in 2009. Which means that particular mount sold by Wavytone in 2009 couldn't possibly have featured version 2.3 of the original starbook.

I suppose since 2009 Wavytone must have purchased another second Vixen Sphinx mount - presumably a SXD this time (not SXW) - and thereafter sold it in late 2011 as it was yet again considered unsatisfactory.

Personally, I can't fathom how Vixen stays in business or persist with these mounts if they are so incredibly bad. Indeed, they are so bad that some people buy two of them within roughly two years.

Its not like the astronomy community isn't filled with discerning consumers and competitive manufacturers.

Last edited by Profiler; 12-03-2013 at 07:34 AM.
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  #33  
Old 11-03-2013, 08:03 AM
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hotspur (Chris)
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I own a Vixen GPD2 and Vixen GP mount,one has DD1 controller the other SS2000 and is full goto.I do AGing and imaging,all good,with Vixen ED 81 mm and 103 mm apo refractors.

I did own a SW NEQ6 at the same time,the best thing I ever did with NEQ 6 was sell it! Although a reasonable piece of kit.

The newer vixen mount gear is not quite as liked by imagers as previous gear.
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  #34  
Old 11-03-2013, 12:26 PM
Profiler (Profiler)
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I think the best perspective is that Vixen was and still is a high quality leading brand - and IMHO their level of quality grossly underestimated.

Having given them this praise the initial release of the Sphinx mounts was something of a recognised and accepted disaster for both them and the folks unfortunate enough to have originally purchased the mounts.

The 'mechanics' of Vixen mounts are of an excellent quality and in no way comparable to the mass produced Chinese clone brands etc. The true elephant in the room and titanic was the 'software' (not the concept) of the Starbook.

It is a sign of Vixen's quality and integrity that they have expended years of development provided free to end-users trying to fix the starbook. After some 8 years they are pretty close to this goal. However, with the passage of time and improvement of technology two things have also evolved

1) NexD boards which transform the mounts out of starbook into a celestron CGem

2) They have totally revamped the concept and produced the totally new and original Starbook 10 where they have learnt from all their mistakes and integrated it with even better mechanics.

The options depend on your budget. The really big advantage of the SXW is its self-contained portability. That is why this is the only 1st generation Sphinx Vixen maintain with the original starbook but installed with the latest 2.3 version of Starbook. These mounts have been around now for a while and so 2nd hand bargins can be had and their problems fixed with updated software.

However, if your budget can stretch to a brand new mount then the SXD2 and especially SXP are nothing like their 1st generation ancestors and will gradually redeem the damage done to the Vixen brand name in terms of Vixen mounts being viewed as of similar quality alongside Tak, AP, Losmanday (after the embarrasments of the past 7-8 years due to the problems with the original Starbook software).

If you can find a 2nd hand SXW cheap enough it is well worth considering (especially once the latest version of Starbook 2.3 is installed) - otherwise these mounts should be used with the NexD board.

Last edited by Profiler; 11-03-2013 at 05:54 PM.
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  #35  
Old 11-03-2013, 12:39 PM
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I have decided to purchase the GP-D2, and will be listing the NEQ6 for sale soon. Been an interesting discussion!

Upgrading to the Starbook looks EXPENSIVE, so will most likely just get the Vixen control board (and motors, if the ones already with it are NOT Vixen) and add the Synscan (seeing the HEQ5 upgrade to GOTO FITS these). I will NOT use the SW motors - EVER!

Lots of thinking ahead to save a little more. I like the Synscan, but IF I can EQmod it, then even better all-round.
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  #36  
Old 11-03-2013, 12:59 PM
Profiler (Profiler)
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Sounds like a good choice

However, keep an open mind if a cheap Sphinx comes along
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  #37  
Old 11-03-2013, 06:47 PM
brian nordstrom (As avatar)
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I am glad my red 'Flag' back in post #18 got the discussions going on this subject .
I cant bieleve that if one person has a bad run with a product they can bag every other one ?? small minded .

Good call Lewis , you wont be dissapionted with the Vixen , especially carrying your FL102 and associated gear .

I have owned all models of the SW mounts from EQ2-HEQ5's and they are good to a point , but the Vixen SP I have now is a totally different beast , better in every way .
Oh yea , I have my IEQ45 for GPS, GOTO , bla bla bla ... but still like to just plonk the SP down pointing roughly south and observe , nice and stress free .
Brian.
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  #38  
Old 11-03-2013, 09:53 PM
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rmuhlack (Richard)
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Lewis - are you now thinking you'll put that vc200l on the GP-D2...? Will that be a problem at all weight wise?
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  #39  
Old 11-03-2013, 10:09 PM
garymck (Gary)
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Lewis,

The eq5 version fits the gpd2, not the heq5 version. I have this combo using a vc200l, works wonderfully.

Cheers
Gary

Quote:
Originally Posted by LewisM View Post
I have decided to purchase the GP-D2, and will be listing the NEQ6 for sale soon. Been an interesting discussion!

Upgrading to the Starbook looks EXPENSIVE, so will most likely just get the Vixen control board (and motors, if the ones already with it are NOT Vixen) and add the Synscan (seeing the HEQ5 upgrade to GOTO FITS these). I will NOT use the SW motors - EVER!

Lots of thinking ahead to save a little more. I like the Synscan, but IF I can EQmod it, then even better all-round.
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  #40  
Old 11-03-2013, 10:33 PM
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Quote:
Originally Posted by rmuhlack View Post
Lewis - are you now thinking you'll put that vc200l on the GP-D2...? Will that be a problem at all weight wise?
Possibly Most of the time will be using the FL102, but never know.

I have seen and heard of others using the VC200L on the GPD2 without hassle. Besides, I have now gone CCD, so the camera weight is a LOT less.

Had the camera 2 weeks now... today was the first time I actually really tried it out - on a terrestrial target of course thanks to QLD wonderful weather. Splotchy holes tonight, but not fussed to set up really. I want a no-worry cloud free night - which will be july at this rate.
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