Jump to content
scorpius

Refractor Scopes

Recommended Posts

Thinking of purchasing a Sky Watcher SW909AZ3 Refractor for moon/planetary photography using prime focus.  Anyone used this or similar -  I cannot find any info as to the termination output of the focuser, some refractors apparently have a T2 thread which will connect to EOS spacers and adapters.  I have the 350D and the 500D (Rebel T1I)

Any info appreciated. Thanks

Dave

Share this post


Link to post
Share on other sites

I had one of those. As long as the camera isn't too heavy it can be doable for moon and planets. The focuser is not very solid, but again, useable for basic solar system work. How heavy are your cameras and adapters?

Brent

Share this post


Link to post
Share on other sites

Where are you thinking of purchasing it from Dave? Supplier should be able to help you, or give Steve Massey a call at Astroshop, he will definately help out. He is in QLD  (07) 4194-5502  

Share this post


Link to post
Share on other sites

I am getting it from NVT in Myaree, Perth WA  They specialise in Optics for shooters/Astronomy/Binos/Night Vision etc etc  They will offer/match/better the cheapest prices in Australia  http://www.nvt.com.au/

I emailed him regarding the fittings and additional options as well, so should  hear tomorrow.  They do not have a shop front per se, mail order only and have outlets in other States in AU. I have bought from them before - It what you want is not in stock or on site,  they can get certain brands quick smart. 

The Canon EOS 500D with a single battery and  T adapter (No lens) weighs in at app 550 grams (also have a dummy battery I made to run it off a HD external power pack 7.4V)  (On my 10" DOB I also use the twin battery adapter, which weighs almost as much as the camera.)

Dave

 

  • Like 1

Share this post


Link to post
Share on other sites

Hi Ray,

Funds are a bit restricted, as mentioned above I will be talking with Greg at NVT tomorrow and see what sort of deal he can do with the SW909EQ2/motor pack.  Also I been having a look at the:-

Skywatcher Maksutov Cassegrain Telescope SWMAK90 EQ1 90mm x 1250mm  They are selling between $350AU/$375AU at various other places.  At NVT "ask for price" :)  I think the motor packs are around $100AU

See if I can flog off my 8" dob That is set up to take a DSLR directly adjusted for Prime Focus. :) Otherwise I could get the EQ2 Tripod and get the motor later.  Alternatively I have some nice servo motors and a spare EQ6 control board and make up a motor control pack. But I certainly want to get a lightweight set up anyway. Be it manual or motorised. 

Dave

 

  • Like 1

Share this post


Link to post
Share on other sites

Well I have done it, purchased the SWMAK90/EQ1 90mm X 1250mm Cassergrain, and got it complete with tripod post free for a very good price.  Be delivered later today.  Greg at NVT was saying he has sold quite a few of them and reports are good for a budget priced unit and very popular. 

Watch this space :) 

Dave 

 

Share this post


Link to post
Share on other sites

Awesome Dave. I thought you were getting a refractor. I've had a Skywatcher Mak. I was very impressed with it. They pack a lot of punch for their size. 

Ray

Share this post


Link to post
Share on other sites

Yeah Ray, I was looking at the best I could get for the Bux I had. so why not a few extra to step up a couple of notches.  After all you only live once. As I mentioned,  Greg speaks highly of it and he did a good deal for me as well,  Have known him since they first started up, plus I have had him on my Astro Page as a link for several years.   This one comes complete ready with everything you need including a 20 and 10mm Super plossls.      

MAK90.jpg

Share this post


Link to post
Share on other sites

Ita quite amazing the number of "adapters" that are now available for mounting cameras to scopes.  In the past I have made mine from a various array of metal and plastic tubing, even getting a friend who had a CNC machine to modify focusers etc.  Yesterday I did a search for an EOS EF to 1.25" adapter and found this little gem for only $20  EOS - T2 T2 -1.25"  for my Canons 350 and 500D :)

I am in the process of updating my Astro Page so if any newer members are interested in my historical activities (And of course Old Mates ) please visit http://dsmithdale.net/astronomy.html

Hopefully by the weekend some new stuff will be up loaded to my server. 

Dave

 

p.jpg

Share this post


Link to post
Share on other sites

After a lot of browsing found an Astronomy shop in the UK selling the EQ RA Motor attachment for only $68.00AU. (Post Paid)  The only place I could find in E Australia was around $172AU Also found a Manfrotto Tripod Spare parts outlet in the UK which is up to 1/3rd of the prices found on EBay.   Quite amazing the disparity of pricing that seems to abound, if you take the times to really look around.  IE like the adapter above, since purchasing that have found a source of identical adapters for only $7.50AU !!  (Same soup kitchen) ..

xctmpNItL1M.jpg

RA single axis motor/controller for SW _ EQ1

Share this post


Link to post
Share on other sites

Have you tried Astromart.com? They have a lot of doovalackies being sold. Not sure if it costs a few bucks to register though, it used to be free. 

Brent

Share this post


Link to post
Share on other sites
4 hours ago, scorpius said:

After a lot of browsing found an Astronomy shop in the UK selling the EQ RA Motor attachment for only $68.00AU. (Post Paid)  The only place I could find in E Australia was around $172AU Also found a Manfrotto Tripod Spare parts outlet in the UK which is up to 1/3rd of the prices found on EBay.   Quite amazing the disparity of pricing that seems to abound, if you take the times to really look around.  IE like the adapter above, since purchasing that have found a source of identical adapters for only $7.50AU !!  (Same soup kitchen) ..

xctmpNItL1M.jpg

RA single axis motor/controller for SW _ EQ1

I think I have one of those hiding in a draw somewhere in the obs

Share this post


Link to post
Share on other sites
16 hours ago, skyman said:

Have you tried Astromart.com? They have a lot of doovalackies being sold. Not sure if it costs a few bucks to register though, it used to be free. 

Brent

Now there's a word I have not heard in some 50 years! doovalackies... I  remember the one we had the wheels fell off :) 

Dave ex Norwich Norfolk Bor...

Share this post


Link to post
Share on other sites

Engaged brain this morning and thought the fittings on my Optika 500mm lens should be T2 and that the Skywatcher should be the same, therefore tried the T2 to EOS mount adapter and it fitted. added a Manfrotto 141RC Tripod mount to the SW MAK90 and set up on the 109D tripod with my old Canon 350D.  There are some trees some 600 metres away and this is the first attempt of terrestrial prime focus.

The line across are power lines, but focusing for my ancient eye was somewhat difficult, I will eventual overcome this using a 7" screen and use the D500 which has an HDMI output which I can feed into a tablet or a small laptop I have, "The Asus Eee PC"  But its a start, I have several Remotes the one I am using in the small shot is a neat unit which has 4 channels and range of at least 30ft.

Having some post op issues at the moment with very unstable hands etc due to a Seroma (fluid build up) which is being monitored by my Doctor. And of course, I try something new and the clouds come rolling in at night :(

Apologies for camera shake/focus

_MG_0590.jpgIMG_4025.jpg

  • Like 1

Share this post


Link to post
Share on other sites

Nice little setup Dave. Try a half moon later this week. That setup would be perfect for it.

Ray

Share this post


Link to post
Share on other sites

Cloud permitting will certainly have a go. Not feeling very bright still with this Seroma issue, will see Dr again later.  Yesterday I received a 40-49mm budget 1.25" plossl from EBay ($25) to be honest I was quite surprised at the quality.  After tea I did a quick  look at the moon with the MAK90on on my Manfrotto Tripod as above, needless to say control was wanting but I was quite impressed extremely clear and well focused.  Its the first time I have come across a 40mm plossl which has a minor adjustment focal length.   In daylight prior I had tried it on the trees 600m away and it focused beautifully on  a couple of branches, crisp and very clear.  I have a Seben variable plossle 25 - 10mm which is quite good especially for moon/planets. (May try it down at Fremantle on the ships in Gage Roads.)

This is all rather interesting almost like starting over again, but also will look forward to setting up the 10" /EQ6Pro again, but I can see Val is going restrict my lifting things for quite a while yet. - Talking of 10" I had a look at Astro Mart mentioned by Brent above, they had a 10 Refractor for sale On special for under $50,000 US.    Aaaahh one power ball!!  (Trouble is my block isn't big enough!)

Anyway will put the MAK90 back onto the EQ1 as the Manfrotto does have restrictions as to elevation limits as well.  I like the red dot finder, much better than a finderscope once its setup and aligned.  I will also use the EOS 500D camera.  I have found a program which I think will do the job of operating the camera from my Asus Eee PC mini laptop, its called "digiCamControl" and is a free application to fully control DSLR Cams with the Source files etc available for customising - Looks promising.   See:-  http://digicamcontrol.com/  There are no help files to download and the information available is buried amongst a plethora of advertising links, so be cautious when you hit "Download" tabs they all led to Sponsor's pages etc. 

Dave

Share this post


Link to post
Share on other sites

Updating activity, I installed the "digiCamControl" software using their latest 2.6 Beta version on the Asus Eee PC notebook.  Its fairly old and running Win7 (aout its limit) However it installed OK and connected the Canon EOS 500D (Kiss X3) and it found it and installed drivers with no issues.  Sitting on the kitchen table did test focus/shot etc. and quite pleased with the result, the focusing appeared to be reasonably good and processed the file in Paint and saved to a flash drive.  Copy attached.

Its been quite a while since I have been active in astro events, and whilst this will probably be old hat to my "older" mates, may be of interest to visitors and newer members.  AS I mentioned its almost like I am learning all over again, having ventured outside the realms of Reflector scopes. 

Now I will calibrate and setup the system for some "serious" moon shots etc.  The prospect of clear nights looks good, but light pollution is a big issue here.  My neighbour has just strung up what looks like a 300 string of white LEDs around his back patio --- Duh! Plus he leaves them on half the night.

 

DavedCC01.jpg

Share this post


Link to post
Share on other sites

Good job Dave, I hear you about neighbours and lights, I have a rear neighbour that likes to leave a security spot light on in his back yard that shines off the back of my house. Most annoying.

 

Shane

Share this post


Link to post
Share on other sites
Quote

 they had a 10 Refractor for sale On special for under $50,000 US.    Aaaahh one power ball!!  (Trouble is my block isn't big enough!)

Have you got the link to that mate? Would love to see it. And yeah Christmas lights, lovely but annoying for guys like us. 

Ray

Share this post


Link to post
Share on other sites
4 hours ago, Radar said:

Have you got the link to that mate? Would love to see it. And yeah Christmas lights, lovely but annoying for guys like us. 

Ray

First of all shred your C Card and lock up your cheque book.   This link can be impulsive !  http://www.astromart.com/classifieds/details.asp?classified_id=933206   Its a humdinger :) only $49K US + shipping

Dave 

933206-1.jpg

  • Like 1

Share this post


Link to post
Share on other sites

Wow. The mount would be amazing. That scope would be good for moon, solar and planets. Not sure it would be any good on deep space objects though. The eyepiece would just clear those legs as it was slewing around maybe. Pretty awesome kit. 

Ray 

Share this post


Link to post
Share on other sites

Yeah, just imagine rocking up to an ASWA lunar night with that mounted on a flatbed truck, wonder if you can get a operator's seat to mount on it :)  Of course you would need bigger counter balance weights. 

One would assume it does have a computer interface for remote control and viewing.

Dave

Share this post


Link to post
Share on other sites

Got the MAK90X1250 reasonably setup this evening, was somewhat tired and eyes not particularly good, so my first photo of the moon is somewhat below par, but a reasonable shot for the first attempt at taking a prime photo with the EOS500D.  Getting it sharply focused I am finding it increasingly harder to do, so soon I will interface it with the software "digiCamControl" mentioned above.  Anyway,  here is my first attempt with the new toy.  The EQ1 is a tad on the flimsy side, so remote switching is a must.  But should be great either on its own or piggybacking on the EQ6Pro it will be a solid as a rock.  Will do some more tests with "Live Screen" too.

IMG_4086.jpg

  • Like 1

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×