Quote:
Originally Posted by Buldric  Congratz on the new solar filter! I wish I could get one 0.o There is a few factors which stop me from doing so,
a.) One for the size of my telescope is not...cheap,
b.)Shipping one for the size of my telescope is very, very fragile.
c.) I cant afford the parts I need for imaging my galaxies let alone the sun! I still need to make a wedge, get an off axis guider, get a focal reducer, and heck, I'm still using 1.25" on a 2" capable Scope! yeayea, I know, you all think im crazy for using 1.25" when I dont have to, but I just cant afford it! the new back, diagonal, eyepieces, camera adapter, AHH! Why did they have to ship it out with 1.25 instead of 2, WHY?! Ah well, it is what it is.
Can't wait to see some pictures man!
Someone needs to setup a camera recording them of one night of astrophotography, so I can see what they do, because my pictures... well, you've seen my pictures, they leave something to be desired. And i'm 99.999% sure it's not my equipments fault.
Clear Skies,
Buldric |
Hi Buldric,
without a Wedge/ Focal reducer/ PEC/or GUIDESCOPE/ Radial Offset guider, its not you my friend, and It is not that you have poor equipment, it is the fact that you need more of it to get good results.
Without a focal reducer any error in tracking becomes a big problem and star trailing will show, especially with the DSLR you are using and a ALT/ AZ mount.
also keep in mind that if you auto guide with another cam like the dsi Pro installed in your radial guider and, you have the back lashes set correctly and you have the auto guiding port, you can still get decent results on brighter DSo's without the wedge, but you will still need the focal reducer, and a good guiding program like GuideDog available online for free.
AN EQ wedge, focal reducer, coupled with a polar align and then a drift align would do the trick as long as you have PEC enabled and Calibrated.
To use a radial offset guider you will need at least a 9mm illuminated recticule eyepiece, and beleive me when I say that is a tough way of guiding, obtaining a bright enough guide star is tough on most DSO's and time consuming as well.
Remember that with a EQ wedge or GEM, it takes at least 30 minutes to an hour to get drift aligned properly, this will do away with having to do any dec adjustments as the scope tracks, but due to periodic error inherent in all worm gears, you either need PEC (Periodic Error Control) or manual guiding with the radial offset guider, or ccd camera autoguiding capability mounted on the radial guider, or a guide scope piggy back mounted on yout OTA.
Your camera is fine and I have seen many fine DSO shots made with that camera.
Here is a pic of my Celestron C8 on its Eq wedge with its counter weight system, I hand guide this setup via a radial offset guider and a f6.3 reducer, the shot I have posted of M-42 in the photo section with the 35mm Pentax me was hand guided for 14 minutes of pure hell.
Astrophotography is an expensive beast!
I have 4 scopes in total, the only shot missing is my 12 inch dob.
Dennis
