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I recently got myself a GSO 6" f/4 astrograph, but seems like the secondary mirror was quite off. I then tried collimation using Astro Baby's tutorials, and others around the net. I've had a few Nets during the past 20 years, but this one seems to be a bit of a pain to get right. The secondary holder is a bit stiff. Anyone here done any mods for the scope and have reasonably good performance? I'be attached an image with Mire De Collimation circles. Image shows the reflection of primary, followed by the edge of secondary and followed by the grey card placed behind the secondary, which ends with the focuser tube. Any help will be appreciated.
Edit: If I were to move the secondary towards 2'o'clock position, could it solve the problem?
So I'm trying to accessorize [flicks hair], and according to a review of the Nexstar 8SE (which I just got yesterday), the guy and a bunch of other reviewers recommend the Celestron SkySync GPS. From what I understand this device tells your GoTo your coordinates, speeding up the time it takes to align your telescope. Its over $100 US dollars. And it can take up to 10 minutes to locate your coordinates, date and time.
If you're planning a trip or just out on your yard/local park, this can come in handy. But if all it does is give your GoTo your coordinates why can't you simply go to Astronomy.Tools (now known to me thanks to StargazersLounge) and look up the coordinates before hand? Wouldn't it be faster to type in your coordinates than to wait 5-10 minutes for SkySync to work?
I'm bringing this here wondering if I'm missing something? Does SkySync do something else besides give your coordinates? After it gives your coordinates, do you still need it for the rest of the night? Are its coordinates more precise? And if so, does that in any way change your experience as a casual viewer or a hardcore professional astrophotographer? How so? And is it true that it can not work at the same time with the Skyportal Wifi module? 🤔
The thoughts and insights of this awesome community would be greatly appreciated.
Having recently replaced my astrophotography camera, I now have the old one up for sale on an astro site. However, doesn't hurt advertising it here
Here is an astro modified Canon Rebel xsi which is the Canon 450D equivalent. It is "good" condition and fully working order but does have some light scratches to the rear screen. I have tried to photograph these but they do not show up when the camera is switched on
Shutter count is 3860 which is extremely low.
Also included are the following :
Astronomik CLS clip filter which really is fantastic and makes a huge difference. It also adds additional dust protection.
Battery system / dc coupler - connects to a figure of 8 lead (IEC C7 Power Lead) - I might have one spare if deemed absolutely necessary. This device provides permanent power to the camera for those long nights - brilliant !
3 batteries and multi-voltage charger (mains / 12volt / 24volt)
I do not have the original box but it can be posted to UK address.
I would prefer collection (near Filey, North Yorkshire) but willing to post if you cover Paypal fees.
I might have a couple more batteries in other camera bags !!
Reason for sale is purchase of an astro modified Sony A7S with canon lens adaptor.
Including a few photos taken with this camera. Two of these images were placed 1st and 3rd in two separate Astrofest competitions in Yorkshire (York and Hull).
Hello all! My father lives in Istanbul and he has the Gskyer AZ70700 Refractor Telescope. He has been really enjoying it as you can see from the photos I've uploaded in the Amazon review I've left for this item (Btw, I've just realized that this review is now the most helpful/liked review on this item which is cool):
My father is OBSESSED with looking at the moon's craters and he had this telescope for almost a year now and he probably never skipped a day at looking at the moon as long as the moon was visible. I've made the post below on this forum before asking for suggestions on what upgraded equipments I should buy for his telescope:
And after the suggestions and more research, I've bought these items:
1) Celestron 8-24mm Zoom Eyepiece (1.25")
2) Celestron 90° Star Diagonal (1.25")
3) SVBONY 1.25" Barlow Lens 2x Multi Coated T Adapter
4) Orion 05598 1.25-Inch 25 Percent Transmission Moon Filter (Black)
Now basically, my father's only wish in this life is to be able to zoom at the moon more and see the craters of the moon more clearly while being zoomed more. Right now, when he uses the 2x Adapter with 8mm eyepiece, things get blurry but he keeps trying to zoom more some nights and tells me that he is hoping one day it won't look as blurry on that amount of zoom I showed him a youtube video of the moon's craters zoomed in with a better telescope once and he was basically shocked and almost didn't believe me that that was possible with better telescopes though I am not sure how bigger/better/expensive those telescopes would be.
Now my father had an open heart surgery recently but he is OK now and I really want him to experience using a better telescope while he can and me being a good son, I want to buy him a better telescope now as I have a bit extra money to spend. I bought the telescope he is using now for 130$ (btw, this telescope had 5 star average reviews on Amazon at the time of my purchase which is why I bought it but I wish I knew about this forum before and asked you guys before buying that one although my father still loved the telescope a lot so I don't have many regrets about it). I was wondering if there are better budget telescopes that are around 180-300$ that can be at least a bit better than his current telescope when looking at the moon's craters while being zoomed more with better/clearer visuals. Btw, because of the light pollution in Istanbul Turkey, only the Moon, Saturn and some big stars are visible in the sky but my father only cares about the Moon craters anyway. It's also important for me that the telescope I'll buy will support 1.25" eyepiece that my father has.
After I've read many Top 10 articles online, the Celestron PowerSeeker 127EQ seems like a good budget option for me and I hear that because it has 1000 mm Focal Length, it's a good option for looking at the moon? I wouldn't know much about that thought which is why I wanted to get you guy's opinion on this. I've also seen that this telescope is being sold in Turkish websites (such as n11, hepsiburada, gittigidiyor etc.) which would mean I wouldn't pay anything for shipment to Istanbul and that he would have the option to return it in 14 days with a full refund if he doesn't like it. However, if you guys think that this telescope wouldn't really differ much from the telescope he has now when it comes to looking at moon's craters zoomed in, or that there are better telescopes than this 127EQ that is not too much more expensive than 127EQ but better at looking at moon's craters zoomed in and still beginner/mid-level friendly when it comes to looking at the moon, then please let me know! I'd really appreciate any input on this before I make my purchase. Thank you in advance!