I don't have much experience with reflectors because I don't like collimation, so take this with a grain of salt. The best views I have had through this 20″ Obsession Dobsonian are of the planet Saturn, and the Messier 3 Globular Cluster. For stars, that means stars are 1.56x brighter. 10" collects 1.56x more light than the 8. Hardly used. Sold Out . The real-time view is much better. A 6mm is definitely a good focal length to have for when the nights are very calm and steady. Buy 150mm Aperture Telescopes and get the best deals at the lowest prices on eBay! SkyWatcher; William Optics; Losmandy; Column. Financing Rates As Low As 0%. If you're not, then you don't have to worry about it. There are some incredible options out there, but my favorite type of eyepiece is one that delivers a wide field of view, such as the Explore Scientific 14mm 100 model below. The AD8 has a focal ratio of F/6. The good news is that if you did opt for the AD10, and you got say, a 4mm eyepiece (300x magnification), then you can achieve ultra precise collimation with a simple star test on Polaris. I bought from telescopes plus, here is the link to the product along w/ all the accessories: … A 20-36″ primary mirror will sure pull in more “faint fuzzies”, but it’s a not a practical solution for the average observer. To easily move the AD8 up and down but help it to stay in the desired position, the telescope tension can be adjusted to match the weight of accessories on the tube assembly. The AD8 has a focal length of 1200 mm. Cost £1099.00 If you are looking for an Airdyne Bike then this will be worth every penny and is in pristine … Set focal length of the eyepiece, and select a target like Jupiter or Saturn. So instead of buying two eyepieces you buy a 12mm eyepiece and a 2x barlow. That being said, you should be aware of a device called a barlow. If this is a telescope for life, get the 10"...even if that means not getting all the extra stuff you want now. This telescope is so huge, that you must climb a ladder to look through the eyepiece when it is pointing at most targets overhead! A member of my Local Astronomy Club in Niagara (RASC – Niagara Centre) owns a massive 20 Inch Dobsonian Telescope that he will often bring out to our Observatory Site in the summer. You can use this field of view calculator to determine what the view would look like through your telescope with various eyepieces. It's a lens that you put inbetween your focuser and your eyepiece that changes the magnification you get with an eyepiece. OR (important bit here) you can put in a 12 mm eyepiece with a barlow to get 200x, the same as the 6 mm without a barlow. Ad status: ACTIVE. TeleVue; Baader Planetarium; High Point; Column. 11 Reasons To Shop With Us! For now stay away from filters except for lunar observations. As others have said the 6mm "gold line" eyepeice is a great deal but I don't personally own one. A a noob this scares me. But the actual process of collimating should be roughly the same. 10 Months old. New comments cannot be posted and votes cannot be cast. Can it even be shipped to Europe? A quick thing about collimation and accessories for the AD10. Enter in the focal length and aperture of the telescope, then switch to eyepiece mode. Put in a 2x barlow and you get 400x instead. This will probably be my telescope for life, so i am also worried about missing out when viewing if i go with the 8" instead of the 10. Is it possible to get this telescope in Europe without paying an absurd amount of customs? A barlow doubles the usefulness of your eyepieces. Here is the link to the scope. This experience is always a real treat, as the views through this giant “Dob” are incredible. Category: Reflectors. Apertura AD8 8" Dobsonian Telescope with Accessories - AD8 - Open Box - SOLD . Posted on: less than 2 weeks ago. Price: 350. I am reading that i will need to buy a 6mm eyepiece for planetary viewing, is this true? Press question mark to learn the rest of the keyboard shortcuts, then you can achieve ultra precise collimation with a simple star test on Polaris. Once you’ve got a quality optical instrument to observe the night sky with, you may want to invest in some premium eyepieces to enhance the experience. Yes, go with the 10. If you’re not up to the challenge of maintaining and storing a large Dob, consider a smaller variation that will likely get more use. This is a great scope but just ti big for me to move. I forgot where I read it now, but i thought it said somewhere that eyepieces for 10" were more expensive. Column. Recommended Eyepieces at High Point Scientific, AstroBackyard | Astrophotography Tips and Tutorials 2020. Great Savings & Free Delivery / Collection on many items I am buying my first telescope and my choices are and Apertura AD8 or AD10. But a 6mm "gold line" can be purchased from Ebay or AliExpress for less than $25, so it's totally affordable even if you go with the AD10. I'm thinking about getting the Apertura AD8 as mentioned in the title, since it seems to be one that is widely recommended. The Apertura AD8 tube assembly sits on the base with ease, and then the telescope can be manually moved up, down or to either side. I have s bad back. The majority of nights I'm limited to about 130x. There are some incredible options out there, but my favorite type of eyepiece is one that delivers a wide field of view, such as the Explore Scientific 14mm 100 model below. But you only need to worry about this level of accuracy if you are in fact, using that 4mm eyepiece to look at things. The truth is, it’s impossible to capture the beauty of the intensely dense group of stars of Messier 3 in a photo. It needs to be collimated it self and the adjustment screws were very stiff and easy to strip. How much more often? Apertura ; Meade ; iOptron ; Explore Scientific ; Categories. A 6mm in either scope will be a decent magnification, but it really depends on how cooperative the atmosphere is. Contact: Log in for info. The Apertura AD8 – Dobsonian Reflector Telescope. The two items above make the AD10 or AD8 a much easier telescope to work with. I had an Orion Spaceprobe 3 alt-az many years ago but sold it due to the frustratingly unstable mount and unremarkable views.