In the City:
Under Dark Skies:
Canon EOS 7D (5DIII OTW)
Canon EF 600mm f/4 L II
Orion Atlas EQ-G + EQMOD
Orion SSAG + 50mm Mini Guidescope
BYEOS, SGP, AstroTortilla, DeepSkyStacker, Photoshop CC
Visit My AstroBin
8" GSO RC with CSL Moonlite FocuserTelevue TV60isLosmandy G11 with Gemini 2 (with Ovision upgrade)
SBIG STT-8300m with Self Guiding filter wheel
A wide assortment of lenses for my Canon.
Photo: Qhy9 mono + qhy 5x2" filter wheel and Baader 2" LRGB, Ha, O3 and S2 filters , Meade DSI Pro 2 as guider, TS 9mm off-axis guider Binoculars: Nikon Action 12x50 Telescopes: Skywatcher Evostar 120ED f7.5 APO + TS 2" flattener Mounts: HEQ5 Pro Eyepieces: Nagler 11mm type6, Pentax XW 7mm, Televue 2X barlow 1.25"
Quote:I am not saying you have to buy a top tier mount but I am saying if you do you will be a much happier man
Quote:The difference is when an astrophysics mount says it can handle a certain load it really can handle that load. You can get AP900 second hand for around $7000 too and that has larger capacity.
Quote:You can forget the CGEM DX if you want to do medium to long exposure astrophotography with anything other than a widefield refractor or a reduced focal length, medium-sized, folded-mirror system (and that wouldn't include either your 11" or 14" SCT). I don't know about the CGE Pro, it should work but as you already know it would be an absolute "beast" to move around or to transport regularly to a remote site.In general for astrophotography and when talking about mounts under about $4K you want to use only about one half of their rated weight capacity. Higher end mounts like those from Astro-Physics (and some others) can probably be used closer to their stated capacity.
Quote:If you can afford one of these top tier mounts, you will be very happy and will get stellar results. With your camera lenses you can start off getting great Astro-photos and don't need to rush getting a telescope. Consider the short focal length (your 600 mm lens) as your training and initiation period. At that focal length, you will not even need an auto-guider if you stick to 5 minute subs.What you learn from the shorter focal length is easier to learn at shorter focal lengths but is equally applicable to longer focal lengths you will get from a telescope.Basically, I'm saying you can still get lots of amazing photos even if you can't afford a telescope till a year later.I took this shot without autoguiding using a DSLR and camera lens on a simple camera tracking mount.[image]http://astrob.in/71130/0/rawthumb/gallery/get.jpg[/image]On the other hand, I have not had even half this much success with my telescope and G11 mount with an auto-guider
Quote:Or... buy a Mach1 (or AP900) for under $7000. Forget everything else. Use your Canon 600mm as an astrograph, that lens is in the same class as a Takahashi FSQ106ED. One thing, you buy a CGEM new, you lose $500 (1/3 of its value) when you sell it. You buy a Mach1 used, you lose pretty much nothing (except shipping) when you sell it. Buying a Mach1 is like buying your 600/4L. Why did you buy that 4L instead of an Opteka 800mm mirror lens? that's the comparison to a CGEM.
Quote:Don't be fooled by that price tag. That price is without tripod/pier or counterweights or many other little things you might need. The reason they sell it that way is so that you can buy only the bits you need according to your requirements and or taste.The store you are buying from should be able to help you configure it according to your needs. You don't have to buy so many counter weights now if you have only a DSLR, you can buy those in the future as you upgrade to heavier gear. This is especially true if you are living in the USA where there is no significant savings in shipping cost if you buy it all at once. If the seller you are buying from can't advice you on a configuration, walk away and go buy from somebody else or directly from Astro-physics.Please note there is a waiting list of a few months on most of their mounts.
Quote: Part of this is because I just found the Astro-Tech 6" f/9 RC Astrograph
Terry Danks Photography: Birds, Scenery, a little astrophotography too. http://danks.netfirms.com/home.htm Equipment List: Too embarrassed to list it all. Roll-off-roof Observatory Constructed Fall, 2013
Quote:If you used the Hyperstar system and kept the remainder of the weight as low as possible I'd think that a Mach1 GTO would be more than fine with a C11. Don't know about the C14, that might be pushing it.
Quote:Unless you have a really dark site you are going to reach sky-fog pretty quickly with an f/2 system. Going narrow band would help and with shorter exposures the mount becomes less of an issue. However, at f/2 the 11" EdgeHD would result in only about 550mm of effective focal length which is a little short for most galaxies and smaller nebulae. However, I'm pretty sure the Mach1 GTO would work well at f/7 or with whatever other reducer you might select.
Quote:In any case, if you go Astro-Physics I hope you are a fairly young person, since otherwise you might not live long enough to actually find one. If you are lucky you might be able to get one of their smaller mounts in 2014, but I wouldn't count on it unless you put your money down soon or just happen to find a used unit for sale when you're ready.
Quote:As for the CGEM DX, yes you'll find some nice photos that have been taken on that and even lesser mounts. The question then becomes how often will you be able to reproduce those results (night after night) and what is the likelihood of you actually getting a sample that will perform as well as the one that produced that photo. You can take your chances, be ready to suffer some aggravation, and hope for the best and maybe succeed. I think there are probably only two ways to guarantee success, either you keep the focal length and weight down to something pretty low or you invest in a high-end mount.
Quote:Quote: Part of this is because I just found the Astro-Tech 6" f/9 RC AstrographWhy would you mess with that, when you already have this?
Quote:Terry,I never tried that particular lens, but my 70-200 F2.8 L still has chromatic aberrations even at F5. If you split the 3 channels you find the blue channel stars twice as big as the other channels. My 8" RC on the other hand gives tight stars in all colors, although it is very slow in comparison. It also has more pleasing diffraction pattern.
Quote:Paramount MX should be your plan B at the budget you indicated if you have to have new.
Quote:Hello all. I have been in the market for a telescope for a while now. Over a year, to be exact, however last year I opted to buy the Canon EF 600mm f/4 L IS II lens, which clocks in at $12,800 instead of a telescope, as wildlife and bird photography is an equal passion. Now that the nature photography lens has been purchased, I've been saving my funds for a telescope. I hope to buy something this year, hopefully by the time summer rolls around so I can enjoy the warmer nights (but we'll see how the funds accumulate, and what kinds of decisions I make about specific gear.) Anyway, regarding the mount. I understand that the mount is an important piece of equipment, and that one needs to invest properly in a quality mount that will last over the years, and support a whole range of possible OTAs over those years. I am curious exactly how important the mount is, though. I am still debating about exactly which OTA to get...on the top of my list are the Celestron EdgeHD 11" and 14" SCTs, the Officina Stellare Hiper APO refractors, and maybe the AT10RC.I really like what I've read about Celestron mounts. The two mounts I am interested in are the CGEM DX and the CGE Pro. There is a pretty big price gap between these two, with the Pro being more than twice as expensive. I've read a number of threads here, but I haven't really found enough information to really help me zero in on which mount I should get. I want to save money where I can, but I don't want to cut corners that shouldn't be cut. Is the Pro overkill? Is the DX more than sufficient to hold any one of the telescopes on my list? I'll probably have more than one scope at some point, and I'm wondering if the DX would be a good enough mount for all of them, if I needed to buy more than one. Anyway, thanks for any insight!
I lost count of my scopes. Now I just want mobility. I came, I saw, I bought some interesting accessories, and put names to faces: NEAF 2012, ASAE 2012, SWAP 2013, ASAE 2013.
Quote:Object count is mostly irrelevant for astro-imaging, as most likely you will be using a laptop with planetarium software to plan and frame shots. Especially if you are planing to move to CCD imaging in the future.
Quote:Quote:Object count is mostly irrelevant for astro-imaging, as most likely you will be using a laptop with planetarium software to plan and frame shots. Especially if you are planing to move to CCD imaging in the future. Ah, interesting. I had my eye on Nebulosity 3 for capture software, and PHD for guiding. I am not sure if either of those have a planetarium catalog of objects. What are the options here? I was also planning to use a Windows 8 tablet, as they are much more energy efficient and lighter to use out in the field than a full blown laptop...but a lot of software like Starry Night does not seem to work with Windows 8. *sob*
World Explorer, Satellite Development, and all that...
LX850 & Astronomy blog: http://lx850.tumblr.com
Ok, equipment list…for reference purposes only!
…Missing my RV-6. Why oh why did I sell it?!?!?!?
Money can't buy happiness, but it sure makes living with misery a lot easier!
http://www.faintfuzzy.net Stuff C14, C8, Orion XX14i, Meade 8" ACF, AT6RC, AT102ED, Orion ED80, PST, AP1600GTO, CGE, CG5, ST10-XME/CFW8, QHY8PRO, Optec TCF-s, Microtouch Focuser, Pyxis LE, Hyperstar for C8.
Quote:OOH! How in the world did you get an SBIG mounted on there!? SBIG cams are on the top of my list once I get the mount and scope. If I can mount an SBIG right to the 600mm f/4, wow, I'd be one ecstatically happy dude!
Quote:Thanks Spacetravelerx! Everyone seems to have pretty good things to say about the Mach1GTO...I think that puppy is at the top of my list right now. I am hoping more opinions roll in through the day...I'm interested in hearing what others have to say, see what other options there may be.I'd looked at the Meade LX850 mount before. It seems to be pretty much on par with the Celestron CGE Pro, almost point for point. I've also seen the CGE Pro slew a big 14" EdgeHD around like it was nothing...so I am pretty sure it could handle the 90lb weight as well. I used to love Meade as a kid, but lately it seems they have a number of problems, including legal issues? Anyway, I decided a while ago that I was going to avoid Meade...just doesn't seem like a safe company over the long term, in case I ever need replacement parts or whatnot. I have a bit of an affinity for Celestron these days anyway, I think.As for Apple, not gonna happen with me. I can't stand apple products, and that isn't for a lack of using them, either...I have reluctantly had to use them a lot. I've had multiple generations of iPhone, iPads, even a brand new Retina MacBook just a few months back. Never liked Apple products, don't think I ever will. They just don't jive with the way I do things. Not to mention the fact that a Surface Pro 2 is a far more capable device than an iPad will ever be, with stellar battery life to boot (thing can go for like 15 hours.) My whole entire house is Microsoft now that I've expunged all Apple products... ;P Only seems logical to stick with it now. I just have to light a fire under Starry Night and Redshift and whoever else develops that kind of software and get em moving on Windows 8 updates. Regarding observing, just so everyone knows...it will all be away from my home for the foreseeable future. I live pretty close the the outskirts of the Denver metropolitan area in Colorado. If I drive a bit over the speed limit, I can get to some VERY dark skies (albeit with two bubbles of LP on the southern and western horizons) within 50 minutes. In Bortle Scale terms, probably zones 2-3 (rural dark to true dark). If I drive for two to three hours, I can find exceptionally dark sights. It's one of the better things about Colorado...we don't have to travel half the country to find truly dark skies. Denver metro and Colorado Springs are the main LP regions...move east for an hour, or move west for two hours, and you can find REALLY DARK skies. Some of those dark skies are up at 11,000 feet or more, so the air can be incredibly crisp and clear and clean...seeing is pretty darn good up on the western side of the divide.
My gear: --Celestron 8EdgeHD & 11EdgeHD | 80mm F/6 Triplet | Modified Canon T1i | QSI683WSG-8 | Celestron AVX mount | iOptron CEM60 mount | iOptron ZEQ25 mount --- My skies:
Clear Skies Gary
Quote:I really like you and hope you post more often.