EM400 without "Temma or Temma2" question
Posted 06 July 2013 - 02:14 PM
Any reason to not get an EM-400 that's "pre-Temma"? I believe that this unit is about 6 or 7 years old and no way of knowing if it was used a lot or not. Shouldn't be a problem if it has is my guess.
Also, am new and planning on Astrophotography but am "investing" in a mount capable of supporting possible "future", heavier purchases.
Posted 06 July 2013 - 02:46 PM
Posted 06 July 2013 - 03:00 PM
Clear skies to all,
samovu (John C also)
Posted 06 July 2013 - 09:36 PM
Posted 06 July 2013 - 11:46 PM
But I don't think there ever were any non-Temma EM-400s. The EM-400 is the replacement for the NJP (which was available in both Temma and non-Temma versions), but the EM-400 is only available with GoTo.
With regards to Temma and Temma2 - the original Temma slewed quite slowly (as slow as 120X). Basically if you had original Temma you either had very slow GoTo slews, or acceptable GoTo slews if you ran the mount at 24V. If the mount is Temma2, it has at least 240X and up to 700X GoTo slew speed, which is in line with other modern GoTo mounts... unless it's a Temma 2 Jr which is 120X.
But the EM-400 is a higher-end mount in Takahashi's stable and I don't think it ever was available with Temma 2 Jr.
So is this the one on ebay?
Posted 07 July 2013 - 12:48 AM
I read somewhere that the FS-102 is quite a performer and that with good performers, the mount can give way before the glass does (clear skies and a good eyepiece assumed). So, I overdosed this week by getting (from eBay) the above mentioned OTA and also this EM-400.
When it rains it pours. Am looking forward to spending some time with my teenage boys looking into the heavens. And if they don't want to go, I'll leave them home.
Clear skies to all,
a newbie that OD'd
Posted 07 July 2013 - 01:29 AM
Noticed that the best offer was accepted. IMHO the BIN was a very fair price (a steal actually)..
Posted 07 July 2013 - 05:03 PM
One day I may "need" the higher weight handling capacity of the EM-400 but the goal now is to learn, enjoy, and experiment my new (to me) tube and mount. And maybe get one or both of my teenage boys a bit interested.
Happy viewing to all,
Posted 07 July 2013 - 08:46 PM
Posted 08 July 2013 - 02:42 AM
No such thing as overkill!
I talked myself into needing something that was overkill for starting with a 4" OTA.
Unless it's been mistreated, that's not likely with a Tak.
I'm hoping that it arrives safely and that the internals don't act up anytime soon.
A couple years ago, I bought an NJP from a friend who was upgrading to the EM-400.
One day I may "need" the higher weight handling capacity of the EM-400 but the goal now is to learn, enjoy, and experiment with the FS-102.
He seriously thought about hanging on to the NJP -- he just couldn't bear the thought of parting with it -- but luckily for me he handed it over.
So I got the utterly magnificent NJP, while he now declares that he'll never, ever let me have the EM-400. Never, ever.
You're going to love that mount.
Posted 08 July 2013 - 05:37 AM
Posted 08 July 2013 - 03:30 PM
The EM400 is just a more modern design.
The Tak polar scope is excellent.
On a different note if anyone has a P2z that is collecting dust please PM me
Posted 08 July 2013 - 04:23 PM
Val, thanks for the tip on SkySafari. Looks like a great tool.
Maurits, yours definitely looks better than mine will. As long as mine works well I'll be happy. A little rust never killed anyone (or at least I hope not!).
Orlyandico, I offered 3k and the seller countered with something right about halfway between that and the BIN. After talking to the him for a few minutes I decided to accept.
Happy viewing to all,
Posted 08 July 2013 - 05:57 PM
If you are planning do do astrophotography with it you should download Chuck Faranda's Temma driver. That's what I used with my NJP, along with a planetarium software for goto. I used Cartes du Ciel because it's free and it works very well with the Temma driver.
If you don't do AP then Sky Safari will work great for goto on an iPhone or iPad but it wont' have all the nice features that are useful for AP.
You might also need an autoguide cable adapter. The Temma autoduide port uses a mini Din connector. I built one for a few bucks. The pinout is on the TAK Yahoo group.
You should probably join it as there is a lot of good info on there including drawings and specs. Also the guys at TNR are very active on there. My questions are usually addressed in one day or less.
Posted 08 July 2013 - 06:48 PM
Posted 08 July 2013 - 07:18 PM
If you are planning do do astrophotography with it you should download Chuck Faranda's Temma driver. That's what I used with my NJP, along with ......
......You should probably join it as there is a lot of good info on there including drawings and specs. Also the guys at TNR are very active on there. My questions are usually addressed in one day or less.
Andy, thanks for all the info. I'll eventually try astrophotograpy and will take a look at the sites you mentioned. Right now I've been spending much too much time researching (and acquiring) h/w and now it is time to actually do some viewing. I don't even have a scope yet but that will change tomorrow when my "other" eBay purchase arrives. I'm hoping that the 4" refractor and accessories arrive safely.
Posted 08 July 2013 - 07:25 PM
So 3.5K? wow, that's gotta be the mount deal of the year...
Yes, I had some pretty good luck last week on eBay. Will try to take one or both of my boys to some dark sky area this weekend. Anything to get them off of computers and game consoles although their time with both are limited.
Let's get out of the house. What a concept!
Posted 10 July 2013 - 09:55 AM
Posted 11 July 2013 - 12:40 AM
Congratulations on both purchases! I agree that buying quality is the easiest way to only buy something once. And yes the resale holds well too, a great way to go if you have ca$h.
Yes, that was my rationalization and at least with mounts, will no longer need to "buy better". I only wish that would hold true for OTA and eyepieces but if there's a will there's a way.
Posted 16 July 2013 - 12:45 PM
My doctor advised me to start some strength building exercises. Me thinks getting this "solid" mount on and off of the tripod should qualify!