"Life is a journey, enjoy the ride" *********** Stellarvue 90 Raptor CF.Explore Scientific 152mm Comet Hunter.Orionx14g.Borg 125SD.Borg 60ED. Borg 50Achro. AT10RC. AT6RC. iOptron iEQ45GTN w/TDM.iOptron ZEQ25.iOptron Cube Pro.iOptron MT Pro/iOptron SmartEQ Pro.Celestron 10x50 Way too many EPs, flatteners and reducers. Nikon D5100, Canon T3i and a bunch of filters.
Adam AP Mach 1, Rob Miller TRI36L, Celestron 8" Edge HD Hyperion 17mm, Celestron 40mm Plossl, TMB 7mm & 9mm WO 66, Lunt LS60/B1200 PT, CG-5 Clone STF-8300m Pro Package, Honis-Modified Canon XS, Un-modded T1i, SSAG, TSOAG9, SX LodestarLackawanna Astronomical SocietyMy Astrobin
Celestron Edge 8"
9/11- Never Forget.
Quote:Holy moly! That is some nice performance. Some elongation, but if that mount can handle 10m exposures at that FL it's a performer. Looking at your exposure, I'd bet it could handle around 25m. I'd love to see what that could do with an 8" SCT. Also, I see you have the Spencer Heat Reduction mod. Can you tell me anything about it? What kind of change in temp are you seeing? What exactly is the mod? There are a lot of people in the DSLR forum that would love to hear about it.
Quote:That's very impressive. I hope iOptron comes out with a beefier version of the ZEQ. Maybe something that can handle 50-60lbs.
6" Baby PowerNewt ES 152mm Achro iOptron iEQ30 QHY12 Lodestar & 50mm Borg guidescope Luck
My images: http://mtanous.wordpress.com
http://www.astrobin.com/users/budman1961/ Meade LX3 8" OTA/IEQ45 Mallincam HyperPlus Color, QHY5L-II Mono Orion Mini Finder/Guider
Quote:Paul,Impressive! For subs of +20m your polar alignment must be very very good, I bet that's the reason you have slightly elongated stars.Cheers,Jose
Quote:Those mounts are really impressive - I'm a convert to iOptron these days.By the way Paul your image once lightly treated with some "light pollution dark frames" and levels still looks much better than anything I've been able to achieve!
Quote:Amazing PHD graph! It looks like my EM-200 on steady nights.
http://www.astrobin.com/users/orion69/ TS 150 mm APO Triplet, Feather Touch 3.5" focuser, Micro Touch Focusing System CGEM on custom made platform Atik 383L+ mono, Atik filter wheel, Baader LRGBC + narrowband filters SX Lodestar + TSOAG9 Dew-Not heater
Quote:That's because he's guiding with 50/250 scope, you have to convert that to imaging FL. It doesn't say too much about quality of guiding...
Quote:Quote:That's because he's guiding with 50/250 scope, you have to convert that to imaging FL. It doesn't say too much about quality of guiding... Really....??
Quote:Yes.If you try to guide with OAG you'll notice that PHD graph is not so nice but stars will be tighter...
Quote:Hi:Further to my inquiry of yesterday about HEQ5Pro vs ZEQ25 I make the following comment.IOPTRON offers a choice of a 5Kg. tripod and a 8Kg. one. I think the heavier 8Kg. one is to compensate for the lighter mount when using a larger telescope. If so, then the lighter mount argument becomes irrelevant, doesn't it?Regards,AstroWave77
Quote:He's right about it being a smoother curve with a simpler a guider and that you could really figure out your PE (guided and unguided) using a program like PEMPRO.
Quote:I'm not sure if I'm applying this correctly, but I think we can just take the Borg 50mm and Lodestar pixel scale to get 6.75 arcsec/pixel. Then multiply that by your measured PE of ~2, and we'll get a PE of 13.5.Hey, smarter people... Did I do that right?
Quote:Edit: just gave it a quick go with Focus Magic (I forgot this can also do motion deblur). Excuse my bad eyesight. http://i.imgur.com/lRJQIhw.jpg
Quote:Quote:I'm not sure if I'm applying this correctly, but I think we can just take the Borg 50mm and Lodestar pixel scale to get 6.75 arcsec/pixel. Then multiply that by your measured PE of ~2, and we'll get a PE of 13.5.Hey, smarter people... Did I do that right? Don't think so, this is guided en PecPrep asks pixel size and focal length, so this is the real error and means you have 2 arcsec P-P ... Side remark, the seeing is in there as well ...
Quote:Adam, You're right about the long focal length too. But, you have to take into account the mount. The RC6 that he's using probably is about as close to the max weight of the mount as it can handle realistically anyways. Plus, that's guided. So, 2" PE is what you 'should' get it to (or smaller).Knez, didn't realize you shouldn't have a normal graph with an OAG. Good to know.
Quote:I didn't take into account that its guided. As far as fl, I belive the OP used his Borg to record this. Not the RC. The RC would give a better read on PE.
Quote:Quote:Edit: just gave it a quick go with Focus Magic (I forgot this can also do motion deblur). Excuse my bad eyesight. http://i.imgur.com/lRJQIhw.jpg Wow...that worked great, and so much easier than using layer masks to do it? With a flat applied to get rid of the reducer vignetting, that would be a great single exposure of M101. Going to look at 'Focus Magic' real quick...lol.Thanks for showing me that, all the best,Paul