Quote:Hi Madratter,I didn't want to hijack Zack's thread with my finder/guider mod but seeing that he also is interested in this solution I will give you a link where you can see more photos of this mod. It is completely reversible as long as you use SSAG. You don't have to shorten the tube, etc. You just replace the rear lens body with the threaded holder I designed. It comes to focus with the part I produced. However, after some more thinking I have a better solution in mind, (a threaded connection to the camera and the finder) which will make this probably usable at f/7 as well. But for this, you will have to wait until I lay my hands on my new C8 Edge Here is the link. Hope the pictures will be self explanatory.Cheers
My PixInsight Tutorial
Pointer to Other Useful Threads of Mine
Quote:Quote:Sedat- I wonder if would still be a good guider even when shooting at 2000mm? Zac. it wasn't, because the nose piece had some play and at 1876mm ( @f/6.7 with APCCDT67 reducer) it was showing this flexure which normally wasn't a problem at 560mm fl. This time, I will produce a threaded connector and it will be much better. However, there are things to be done to the finder holder as well. Once I start the mod, I will document every step and share it with you guys.Clear skies
Quote:Sedat- I wonder if would still be a good guider even when shooting at 2000mm?
Celestron Edge 8"
9/11- Never Forget.
Quote:It looks great Zach! Congratulations. And don't worry those warm clear spring nights are on their way. You will be able to dive deep into the Virgo galaxies soon enough.Steve
Quote:Sedat- Thanks for the info! I would also be interested in how you go your autoguider to work with the finder scope. I wonder if would still be a good guider even when shooting at 2000mm?Pat- Thanks for the info. I wonder if the Orion OAG would work with a dslr as my imaging camera?
Meade LX200GPS 14", Meade LX200ACF 10" Celestron C8 SCT w/Hyperstar (CGEM Mounted) Explore Scientific AR152, 127mm APO, 102mm APO, 80mm APO AT 6" RC, William Optics GTF 102 Lunt LS60TDS & Cak B1200 QHY10, ATIK 460EX(M), 450C, Starlight Express H18 w/FW and OAG Orion StarShoot Pro V.2, Orion StarShoot SS III, NexImage 5 & PG Chameleon Meade LPI, DSI-C 1, Lodestar & SSAG (autoguiders) Canon XSi Digital Rebel Hap Modded Images Plus 4.0, MaxIM DL Pro 5.14, BackyardEOS
Quote:Hi Zach, your new rig looks really nice. I'm wondering that when you get your TMB130SS back in service, how'll you be dividing your time between it and your new Celestron Edge 8"? I'm asking since every so often I do a little "window shopping" for a complementary scope for my nice 5" achro. SCTs 8-10" are on the list but I'm wondering if an 8" SCT would "compete" instead of "complement" a 5" refractor.Here's hoping your new scope shows you a lot of the night sky....
Quote:Madratter- I'm sure it will be an interesting comparison between the TMB and the Edge. I just hope I can get the TMB up and running before to long.Phil-Thanks! It's certainly a nice setup to look at. The Edge and iE45 are a nice compliment to each other.
Quote:Yeah it's a good situation to be in. The TMB has already proven itself both visually and photographically. I'm sure the Edge will do great. And once the TMB is fixed, I'll do a comparison between the two. And just for fun I'll through in a Meade 102ED for the comparison. It's a real sweet scope also.
Deep Space Products
Quote:Ed- You're right. It will be like comparing apples to oranges. Though I still look forward to comparing the two. The o-ring located behind the lenses popped out. It occupies the space where the collimation screws are located. I'm waiting to receive a new o-ring from Astronomics, which is waiting for the o-ring to be sent to them from the factory. Not sure how long it will, but right now I'm going on a month with no TMB. Here is a link to the CN post I made with pictures.
Quote:Yeah from what I know my 130SS is the first to do this. If collimation is affected, I'll send to Astronomics to fix. I've attempted to collimate a triplet before and did not succeed. I figure it's better to let the experts handle it.
Johnny FS152 15" Obsession Classic w/ 14.5" f/4.65 Zambuto
Quote:Quote:Yeah from what I know my 130SS is the first to do this. If collimation is affected, I'll send to Astronomics to fix. I've attempted to collimate a triplet before and did not succeed. I figure it's better to let the experts handle it. Hi Ed and Zach. Zach, why not just send your TMS130SS to Astronomics and have them put in the O-ring and make sure it's collimated?Ed, thanks for saying that about your combo of the TMS130SS and C8HD. How do you use the apo and C8HD? I'm considering a C8HD as an EVENTUAL companion for my 5" achro. A C9.25 (HD or no) is also on that short list (so is a 8-10" Dob of sufficient focal length).Best,
Quote:Ed-Thanks for that info!I have another question which concerns cool down times. What would be the best way to let the Edge cool down? Place it outside with the front cover on and visual back plugged or have the cover off and the visual back open? I would assume I'm looking at a couple hours to cool down going from inside temp. of 68 F to outside temp of 35-40 F.Thanks!
Quote:Well I ordered a dew shield today. The one I made wasn't going to work.
Quote:I'm sure it will be an interesting comparison between the TMB and the Edge.
Quote:Quote:Well I ordered a dew shield today. The one I made wasn't going to work. Why is that Zach?Steve