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National Geographic 90/1250 maksutov is my telescope and thanks for all the replies and support of my previous post it helped me alot and i figured out how to see the moon for example in beautiful quality
but there's the problem i have. I can only see good views and a sharp sight of the moon but that's about it. Do i need a better lens that can zoom even more out or is this the limit of my telescope?
Please let me know if you know a solution to this.
Hi everyone, just looking to get into astrophotography but looking at a DSLR as I'd like to use it for daytime use too, I know usually it's better for them to be modified but I've seen this can be done to allow use for both with only white balance adjustment.
I've seen 1300d's going around £200 on eBay with the 18-55mm lens but the 4000d is a couple of years newer and there is currently one with 18-55mm + 75-300mm going for £350 at Currys. From what I can work out there isn't much difference between them besides a smaller screen on the 4000d and the release date. I'm just wondering if there is some reason people go for the 1300d instead or is it just because of it being older it turns up cheaper?
Sorry for the long winded post but I'm doing lots of research to make sure I get the best one that'll last me the longest, thanks for any help.
i seem to have a dirty lens on the telescope side of the lens.
Anyone disasemble this before ?
I already checked the camera, filter, and focal reducer seperatly, the "staines" are from the telescope-side of the lens (already cleaned the outside of the lens to)
I just had to show it off; I'd rather be outside looking through it, but too cloudy. First impressions are pretty darn good. It's a beautiful instrument, the fit and finish are superb. This is the 20th Anniversary Edition GT81 f/5.9 81mm APO refractor from William Optics. It has a two speed Crayford 2" focuser, with a 1.25" adapter. It comes with a small "shoe"-like dovetail bar, and a carry handle that also mounts a set of rings large enough to hold a 9x50 finderscope or guide scope. Just to see how it looks, I installed the 9x50 finder from my Edge 8", and will probably leave it on the frac, since I rarely use it on the SCT. The dovetail bar is barely long enough for the two large tightening screws on my AVX mount to grasp, there is no room to move the OTA forward or back on the mount to assist in balancing once all the accessories are attached. It is threaded so a longer dovetail bar can be attached. The telescope is only 17" long with the dew shield retracted, and weighs around 8 pounds. It comes with a soft case with a fitted closed-cell insert, and the William Optics logo is nicely embroidered on the cover.
I also purchased the field flattener/reducer for this scope, it makes it a f/4.7 when used, and so far as I can tell, the reducer is for AP only, it comes with an adapter ring for a Canon T-mount, which can be unscrewed; the threads are then correct for a Nikon T-mount, but there is no means to place an eyepiece in the reducer. The reducer is threaded on the end that inserts into the 2" focuser barrel along the last few mm, but it has a broad sleeve with the safety recess that fits very snugly in the focuser tube. With the three thumbscrews snugged against the brass collar inside the focuser, there is absolutely no free play to be had. Very solid.
I also tried a variety of my EP's and accessories, they all fit well and without any movement once tightened. I can't wait for a nice, clear night to try out this marvel. I have a side-by-side dovetail bar coming so I can mount this alongside my Edge.
Last week I received my Star Adventurer, and I'm learning how to use it. I had no issues aroud 0 - 80mm, but yesterday I was out trying to take pictures with my 200mm Takumar (300mm on my DX body), and I was struggling to point it towards my target (Andromeda). I know where it is, I could see it with my own eyes, yet, I wasn't able to point my lens towards, only after like 40 minutes... :/
I don't know how others do it, so any advice would be appreciated!
What I was thinking about:
1. hot shoe adapter + phone holder + phone / tablet with stellarium, so I would see in the app where my lens pointing (adds weight)
2. some kind of hot shoe adapter + a reflex sight
3. some kind of hot shoe adapter + a green laser pointer
4. a small scope, maybe a finder scope attached to the other end of the declination unit
5. maybe it's overkill, but is it possible to make the Star Adventurer GoTo somehow?
Thanks in advance!