Posted 22 January 2013 - 10:54 PM
10 minute sub exposures 5 hours in HA..
I miss named it "800", mine still has an 800 badge but it has all the 850 upgrades.
Posted 22 January 2013 - 11:41 PM
Any details on how this was auto-guided ?
Posted 23 January 2013 - 01:51 AM
Posted 23 January 2013 - 02:15 AM
There is a Horsehead of similar image scale at the top of this page -
but Rob Vanderbei's image was taken with a 10" RC and only using 5-minute subs.
If the LX850 can do perfectly round stars at 5-minutes, then it could be argued that the LX850 can match a Takahashi NJP. Which is really saying something...
Trouble is even at $6000 it's a lot of coin. If Meade could have the same technology in a $2000 class mount, I'd bet there would be a lot more adopters. I might even check it out..
Posted 23 January 2013 - 07:25 AM
On a side note, SCTs primarily being visual platforms, I would like if someone could test imaging with a decent APO on LX850 mount. Thx
Posted 23 January 2013 - 09:35 AM
Do not get me wrong, the Mach1GTO is a great mount and a known entity, let's just take a step back and give the LX850 a chance, I think Meade has something here.
And, great Horsehead shot.
Posted 23 January 2013 - 10:50 AM
And that's a terrific image, Jason!
Posted 23 January 2013 - 11:00 AM
Let's compare dollars to the AP900
I agree; probably better $ comparison.
Posted 23 January 2013 - 11:06 AM
Posted 23 January 2013 - 11:55 AM
In the other thread I pointed out that a decked-out AP900 is $10.6K -
900GTO - 8750
900RPA - 325
Robin Casady 31012226-AP3-22lb-S x2 - 466
Robin Casady Dove12 - 179
Rob Miller Tri36M - 900
Of course if you get the AP Eagle then that's definitely much more spendy. With a Mach1, all you really need are a saddle, a couple of weights, a tripod, and an ADATRI. Heck, in my case I put the Mach1 on an old Celestron tripod that cost $75.. you can put it on an Atlas or CGEM 2" steel tube tripod and it will be stable, and the cost will be much less than $8K.
People don't say "I need X pounds of payload and I'll spend whatever." They say "I have X dollars to spend" - and people with $6K to spend won't be looking at the AP900. Hence even though in theory the LX850 carries much more than the Mach1, it is a valid comparison.
Posted 23 January 2013 - 12:23 PM
Thing is Meade is selling the LX850 14" tube for $6K. And $10K including the mount. If you include the OTA in the equation, I think a lot more folks would go for the Meade (the mount is now only $4K! and at $4K a lot of sins can be forgiven - not that the LX850 has many).
Another issue is weight - the CGE Pro has been around a long time, costs $5K, and carries 90lb. It never was an option for me because it's too heavy. Ditto for the Losmandy Titan.
Posted 23 January 2013 - 12:38 PM
The raw PE went up a bit with the load, from 13" to 19" but with the latest firmware it is PEMPro corrected to 2" PP
Posted 23 January 2013 - 12:55 PM
Posted 23 January 2013 - 01:49 PM
Is there any way we can see a few detailed shots of your setup? I know that may be slightly off topic but your comment about the weights has me thinking about it. Seems like your equipment has to be hanging way back with all that attached. What is the optimum back focus at F/8?
On my CGE-PRO I had at one time 88 pounds of counter weights and I thought that was insane but the mount handled it all pretty well with little "wiggle". Have you identified where the wiggle is coming from? From what I recall when I got to see the LX800 in person at a show I went to, the pivot point at the Alt adjustment seems really weak and when I grabbed the bottom of the dove tail and moved the OTA back and forth I couldn't figure out if the movement was more in the motors or in that spot. I think it was a tie. Lots of weight being channeled down to the ity bity spot. A permanent pier won't help it unless it is also in a observatory where the wind won't bother it. But 99% of us don't have either option.
Obviously results are what matters but I am curious how it will hold up in the wind or even a breeze with a big 14" on there.
Posted 23 January 2013 - 02:48 PM
lot of moment arm. Overall it holds up better in the wind
than any previous Meade fork mount I have used. I don't have much experience with other mounts.
Posted 26 January 2013 - 05:16 PM
Posted 27 January 2013 - 01:02 AM
Posted 27 January 2013 - 03:45 AM
Jason is doing a good job
Posted 27 January 2013 - 05:13 AM
if the variability in quality is too high, people are still gonna be scared. anybody who buys a 6.5k mount would not want to be rolling the dice.
Posted 27 January 2013 - 05:49 AM