Privacy Policy |
Please read our Terms
of Service | Signup and
Troubleshooting FAQ | Problems? PM a Red or a Green Gu.... uh, User
Paddyman
journeyman
Reged: 12/12/06
Posts: 5
Loc: Dublin, Ireland
|
|
Hey lads o/
Long time lurker and want to say i love the site!! Has provided so much info to me in the past that i really wouldn't enjoy astronomy as much without it.
My question now is i have a mach1 gto with a eagle mount. I kind of bought with my heart rather then my head a Tak Toa 150. Its coming soon  cant wait.
So now the reality. How do you all think this the mount will fair up to holding this OTA???
Im mostly visual but would like to get into imaging eventually.
Hope someone can help!!
Cheers to all
Paddy
|
TxStars
sage
Reged: 10/01/05
Posts: 386
Loc: Lost In Space
|
|
The mach1 will be ok for visual but is a bit light for AP with the Tak TOA 150 after you get the camera / guider and guide scope all on board.
If you use a CCD camera that has a built in guider then you should be ok for many objects where you can rotate the camera to find a guide star. But the framing may not be to your liking.
You can always try to find someone that is looking to downsize their mount and work out a swap, or you can downsize to a smaller scope.
--------------------
http://txstars.org
Tak FC-50
Tak FCT-65
Tak FC-100
"SCUZZO" 300/1.1
Camera Nikon F2 / Mamiya press 6x7 ,6x9 yay Film
Lenses Yes Many - lol
Mount - GoTo by hand and eye
|
LLEEGE
Running out of Oxygen
Reged: 03/03/05
Posts: 6273
Loc: Cloud-chester,NY
|
|
The TOA is a tank at 42 lbs. The Mach1 is rated at 45. Maybe you should look at a TEC160. More aperture and only 26 lbs.
Or a 900 mount.
--------------------
AP900,LXD75
AP140EDF, SN6-OTA, ZS80EDII, C8-OTA
Canon 20D, 350Hutech
PST, Lunt LD60T/DS (on order)
|
Mark Jenkins
super member
Reged: 06/25/08
Posts: 156
Loc: Wisconsin
|
|
Wow. What makes the TOA weigh so much?
--------------------
AP 105mm f6 APO (Traveler)
AP Mach1 GTO
AP Eagle 6 Pier w/extension
AP 12mm, 8mm, 5mm SPL
Pentax XP 3.8mm, 6mm Orthos
TeleVue 17mm Nagler 4
University Optics 12.5mm Orthos (Pair)
William Optics 28mm UWAN
Zeiss ABBE II Orthos 4, 6, 10, 16, Barlow Due in October.
Zeiss "25mm" 1.25" Focusing (Matched Pair)
|
JerryWise
Postmaster
Reged: 12/26/03
Posts: 6553
Loc: Lexington, SC
|
|
It has double ED elements and built like a tank. But the weight really comes from a huge counterweight collar installed (if the user likes) on the rear of the tube. This is to offset the large lens cell if you want the rings centered on the OTA. The counterweight is over 10 pounds (IIRC). I often leave mine off without problems on the Mach 1. Add a Diagonal, Ethos EP, or camera and you don't have to move the balance point too far to the front of the OTA.
While the Mach 1 is rated at 45 pounds that has to be very conservative. It too is built like a tank. Paddy, I think you will be just as tickled as I am with that system. Probably one of the best tracking and color corrected systems out there. I'll try and find a link to verify this but I recall Roland C. talking about certain scopes not have the color correction of a TOA or AP refractor. That's a real endorsement for the TOA.
--------------------
Jerry
|
Paddyman
journeyman
Reged: 12/12/06
Posts: 5
Loc: Dublin, Ireland
|
|
Thanks Everyone!!!
From the reviews I've read on the Tak, it puts it at about 32-33 pounds. Add the counter weight makes it 42-43 and then you need to add the holder....
This is why i was thinking it might be pushing. I've actually never used or seen a Toa 150 (used it baby bro the Toa 130 once and taught it was amazing). I was on Astromart looking for a Toa 130 and the Toa 150 came up for sale . So i took it lol.
If i can do without the counter weight and substitute that for the diagonal/eyepeice/powermate or camera/reducer and i would be under the 45lb rating....
Wohooooo. Hopefully, hopefully.
If you can find that link Jerry i'd love to read anything Roland has to say about the Tak.
Thank's again lads, im feeling better reading this
Any other experience you want to share on this setup jerry would be appreciated...
|
JerryWise
Postmaster
Reged: 12/26/03
Posts: 6553
Loc: Lexington, SC
|
|
Paddy, I responded in a PM on some mounting thoughts.
Also, in in this page is a lot of very good information.
On the link, I can't find a direct link but do have his comments in my database. (I copy a lot of his instructional post on AM into the database. The man is an optical Einstein.) I can't quote directly since permission is required by the TOS to post another's work but it went something like this:
Quote:
If you want to image more of the spectrum to include that covered by a modern astronomical CCD camera, you probably want to go with an airspaced design as exemplified by TMB-Lzos, Tak TOA and AP EDF triplets ...........
In the same piece he also put the oil spaced designs by TEC and Zeiss in the same league.
--------------------
Jerry
|
Paddyman
journeyman
Reged: 12/12/06
Posts: 5
Loc: Dublin, Ireland
|
|
Hey again.
Thanks for all the responces. One last thing. I need to attach the Toa 150 to the Mach1 through the Tak Double ring holder. I've been shopping around for dovetails and best to use seem to be BT's Tak-02dp and their universal saddle.
However both these together weight nearly 7LBS!!!. Surely there has to be a lighter way. Anyone know any?
|
Jeff Young
Carpal Tunnel
Reged: 08/04/05
Posts: 2924
Loc: Ireland
|
|
Paddy --
I don't think there's a commercial alternative. I made a custom adapter to attach my Tak Mewlon clamp to my AP600 (I was also pushing the weight limit a bit). There's a thread here: Mounting a Mewlon 250 on an AP600E GTO.
Summary: I got it down under a pound, but it was a lot of effort.
Cheers,
-- Jeff.
--------------------
Nikon 18x70s / UA Millennium Colorado:
Solarscope SF70 / TV Pronto / AP400QMD Coronado SolarMax40 DS / Bogen 055+3130
APM MC1610 / Tak FC-100 / AP1200GTO Tak Mewlon 250 / AP600EGTO
|
Paddyman
journeyman
Reged: 12/12/06
Posts: 5
Loc: Dublin, Ireland
|
|
Had a look at your thread there Jeff. That is top work, congrats. I dont suppose you'd be interesetd in doing a custom tak to AP mach1 plate for a fellow Irish man
To be honest, with a 33lb scope + 6.5lb dovetail + rings?? and not use the counter weight it would put me about 42ish.
The mount is rated for 45lb but is under-rated. It should still be alright. I wont be adding anything too heavy extra.
Thanks a lot lads!!!
|
|
7 registered and 10 anonymous users are browsing this forum.
Moderator: Charlie Hein
Print Thread
|
Forum Permissions
You cannot start new topics
You cannot reply to topics
HTML is disabled
UBBCode is enabled
|
Thread views: 346
|
|
|
|
|
|
|
Previous
Index
Next
Threaded
Edit
Reply
Quote
[Re: 