Posts Tagged ‘should’
What type of light pollution filter should I get for my telescope?
Question by shish2kabob: What type of light pollution filter should I get for my telescope?
I have an 8 incj dobsonian reflector telescope and live in an area close to a city so at times there can be a bit of light pollution. I want to get a light pollution filter to view nebula more clearly, emission nebula to be specific. I read reviews on filters called narrow banded filters and OIII filters. Wat is the difference between these types of filters and which one should I buy? Please let me know if any information is further needed
Best answer:
Answer by GeoffG
Narrow band filters like the Lumicon UHC and Orion UltraBlock are the best all-around choice, since they block most of the bad light and pass the main nebula bands. The OIII has an even narrower band pass, so needs a larger aperture to function well.
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What telescope should I buy to see the rings on saturn and people climbing a near by mountain?
Question by Pete D: What telescope should I buy to see the rings on saturn and people climbing a near by mountain?
I am looking for a quality telescope (couple hundred dollars) that at night I could see the planets, and during the day time, I could see a 6′ tall person climbing near by mountains and cliffs.
Best answer:
Answer by Nomadd
You can get a 4 1/2″ reflector from Walmart with a clock drive that would work fine for $ 300.
What do you think? Answer below!
Should I get a solar filter for my Telescope?
Question by shish2kabob: Should I get a solar filter for my Telescope?
i have seen a lot of images of the sun and sun spots and lately i have been considering getting a solar filter for my telescope. however i have heard these can be dangerous and sometimes faulty so IF i do get one, im not going to cheap out on it. ive never observed the sun through a telescope before so i do not know wat to expect, or if it will be worth it.
i have heard of another technique for looking at the sun, that involves taking a piece of paper and letting the image of the sun shine on the paper and you can look at that. i honestly dont remember where i heard this from so im not even sure if this is a valid method. thanks
Best answer:
Answer by Viola At Neon
Why not? The Sun is fascinating object to observe.
Yes, you have to be careful, but a quick inspection of the filter before you put it on your telescope is all you need. Remember what you are risking, and act accordingly.
I have a mylar white light filter for one of my telescopes, and a Coronado PST that shows the Sun in hydrogen alpha. Both are great fun.
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What (canon) camera should I get for astro use and fun.?
Question by Sciguy: What (canon) camera should I get for astro use and fun.?
I did type this really quickly because I am busy studying. I don’t need an answer to everything mentioned below, nor do I expect one. My question is long/detailed and I tend to ramble when I type fast.
To start… i’ll explain what I know and what I want to do with a new camera.
1st:
My limited knowledge of SLR cameras comes for my fathers old Pentax that I used when I was kid. Basic picture taking and slight adjustments for night shots or that blurred affect of waterwalls and stuff like that.
2nd:
I do have a 10″ C10 on an equatorial mount. My main reason for wanting a DSLR is for that telescope, but I want to use it for other stuff as well. That telescope and mount was my first step/purchase towards being able to take astronomy photos. The spc900nc is good for Jupiter/Saturn/moon but nothing else. I know about the difficulty in tracking objects and stuff like that. I know you need an auto-guider for best or even ok results and that my results are not going to be that of the multi-billion dollar Hubble. I do accept all of those obstacles and facts.
3rd:
I know that patience is the key to astro-photography, and that many people are not aware of the entire process or the costs involved for good/decent results. I have a degree in computers and currently an Aero-eng student. I have “not” taken an astronomy course (they don’t count for credit towards my degree), but astronomy and space in general is a huge hobby of mine. Practically an obsession. I am quick to learn and pick up tricks that others have difficulty grasping (or so I think). I just want to make that a point before I get comments about astro-p being too difficult or not worth trying. I will do it regardless of the negative comments or opinions. My first tele was the telescope everyone told me not to get because of difficulty, and I got alignment and tracking down in the first 30+ hours(the first week upon delivery). I would even concrete and enclose if I didn’t plan on moving soon.
4th:
What do I want to do with an expensive hi-res manual camera?
20% of my use is for vacations. I go to some pretty unique places where I now wish I had better photos of. Desert/scenic landscapes, national parks, airshows, car races, cruises.
The other 80% of my use and want is for long exposure prime focus shots with my telescope. (or) Piggybacking on my telescope with normal canon lenses. (or) standard tripod and use for imaging star/meteor trails. I have looked into getting a astro-ccd-camera, but the $ 400 models looks like crap (1.3mp), and the $ 1200 models (3-6mp) are only going to serve as a telescope camera, and that’s all. The DSLRs have double triple or quadruple the resolution of an astro ccd at the same price, but they lack the noise filtering cooled ccd. I know most dslr can be modified, but I wont or have no plan on doing that or paying to have it done. Because of the cost and warranty of the camera.
I have always wanted to take pictures of the milkyway bands, and time lapse of the sky (day/night). Which I know I need the $ 130 canon shutter/control timer thing. (I have considered a class 2-3 night-vision scope/camera).
I plan on getting the following items for the camera soon after the camera purchase.
1: Timer/battery grip (for timed shutter control & remote triggering).
2: The general ??mm-???mm lens that is optional/additional.
3: Fisheye lens for the night sky (tripod- pointing to zenith for meteors and general 1-5 minute exposures sequenced to show the movement of the night sky)
4: Telephoto for general piggy-back use on my telescope or for tripod shots of shuttle/rocket launches ( I go to all of the KSC launches).
I have looked at the canon 40d and I love the shutter speed (its just cool). There are many times my point-and-shoot camera(s) miss all the action, like going to nhra races or air-shows. Is the 6 shutter “things” a second that much better than the standard 3 shutter things found on all of the other canons or other brand cameras. For long-exposure and time-lapse photography, Will a $ 300 xsi (or similar) work as good as a $ 900 40d for what I want to do? I don’t mind spending 1500-2000 total if that is the only way I can get the results I want.
At the shuttle launches everyone has a 3-8 grand worth of still camera equipment and I always notice that 80% of them use Canon. I have talked to several people at various rocket/shuttle launches, but they dont know how to take astro pics. They are all photographers with jobs in sports, news, wedding, and general photography.
My main reason and want for canon comes from everyone saying that canon is better and has done more for astro stuff than any other company. I dont know that or know the truth behind those statements. I am not close minded and would lover to hear all suggestions and opinions of any camera you want to talk about. If it costs $ 300 from walmart, or $ 1200 online to do what I want, I am ok with that. I don’t like crap el
NyX:
LoL… Yea, I tend to over analyze everything now, no arguments there. I can only blame/credit school for that asset.
I forget the other persons name:
Oh I know about the difficulties, it isn’t easy to get a good image or cheap for that matter. I have all the time in the world to perfect a useful method. I plan on getting a scope that is more suited for photography and my mount, like the Orion 120mm apo with the coatings.
I am the type of person that is disgusted with societies view of space and the universe. Space is the key to every answer imaginable and people know nothing about it (even the smartest people on this planet). There are road blocks, but nothing will stop me from getting a crispy pic of the awesome looking deep space objects.
Best answer:
Answer by D
go to this Astronomy site lots of excellent information here
keeplookingup.webs.com
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Q&A: What telescope eyepiece should I use?
Question by Thomas J: What telescope eyepiece should I use?
I’m constructing a Newtonian reflecting telescope with either a 4.5″ or 6″ primary mirror. I’m having a hard time figuring out what eyepiece I should use with it. I understand that one of the factors on which my decision depends is the focal length, but is there anything else I need consider?
Best answer:
Answer by Neil
You should consider how big you want your field of view to be, and your telescopes focusing ability.
What do you think? Answer below!
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