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  1. #11
    drwho41963's Avatar
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    Default Re: A beginner needing advice



    I was in the same boat your in now. Looking for as much information as I can get before making the purchase. After 3 months of asking many questions it came down to that I wanted a scope not only to travel with but also be able to take okay photo's if I wanted to and I could grow with. Well I ended up getting the the following items:

    Celestron NexStar 8 SE

    Celestron NexImage 5MP
    Celestron Power Tank
    Zhumell 1.25" High Performance Urban Sky Filter
    Celestron Eyepiece and Filter Kit
    6mm
    8mm
    13mm
    17mm
    25mm
    32mm
    2x 1.25 Barlow lens
    (Lunar & Planetary) Filters - 1.25#8221; #8212; Included are Kodak Wratten #12, #21, #25, #56, #58A, and #80A.
    Moon Filter - 1.25 #8221, #8212

    My blog shows some of the pictures I've take since Aug. 2014 when I made the purchase
    Alex's Sky Photo's

    I mostly observe from my backyard and I get awesome views of whatever I point my scope at. When I first saw star cluster it took my breath away. That cluster was messier m67 star cluster. I saw a blue hue among the stars. I was a great site. I would say that an 8 inch scope is the sweet spot. You can see many objects in the sky and its very easy to store. I have it in a large duffle bag and the stand folders up so I can carry it.
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  2. #12
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    Default Re: A beginner needing advice

    Quote Originally Posted by girimurthy View Post
    Hi,

    Do not buy these eyepiece sets at the beginning. I would recommend you to wait and then slowly purchase some good optics. I think the nexstar comes with a 25 MM only. In my opinion for a starter just buy a zoom lens like this one
    Amazon.com : Celestron 93230 8 to 24mm 1.25 Zoom Eyepiece : Telescope Eyepieces : Camera & Photo

    and a cheap barlow lens like this one
    Amazon.com : Celestron Omni 2X Barlow Lens : Barlow Lenses : Camera & Photo

    With the combination of zoom and barlow it will keep you busy for starters. You can then buy other expensive eyepieces later.

    Cheers,
    Giri.
    I have read lots of beginner text about not to buy sets at the beginning.

    The thing is. I am already going to buy some stuff from amazon and have them shipped to my country(like a bag to carry it around for example or the power tank).
    These things are way overly priced like x3 times the price of amazon in my country.
    So when I order lots of things I would like them to be added, not to pay the shipping price seperately in the future when I get more experience.

    It is really disheartening to read what people say with more knowledge and experience then doing exactly the opposite...
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  3. #13
    Tarx's Avatar
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    Default Re: A beginner needing advice

    Quote Originally Posted by drwho41963 View Post
    I was in the same boat your in now. Looking for as much information as I can get before making the purchase. After 3 months of asking many questions it came down to that I wanted a scope not only to travel with but also be able to take okay photo's if I wanted to and I could grow with. Well I ended up getting the the following items:

    Celestron NexStar 8 SE

    Celestron NexImage 5MP
    Celestron Power Tank
    Zhumell 1.25" High Performance Urban Sky Filter
    Celestron Eyepiece and Filter Kit
    6mm
    8mm
    13mm
    17mm
    25mm
    32mm
    2x 1.25 Barlow lens
    (Lunar & Planetary) Filters - 1.25#8221; #8212; Included are Kodak Wratten #12, #21, #25, #56, #58A, and #80A.
    Moon Filter - 1.25 #8221, #8212

    My blog shows some of the pictures I've take since Aug. 2014 when I made the purchase
    Alex's Sky Photo's

    I mostly observe from my backyard and I get awesome views of whatever I point my scope at. When I first saw star cluster it took my breath away. That cluster was messier m67 star cluster. I saw a blue hue among the stars. I was a great site. I would say that an 8 inch scope is the sweet spot. You can see many objects in the sky and its very easy to store. I have it in a large duffle bag and the stand folders up so I can carry it.
    Thanks for the reply.

    I don't own a camera to take photos. My only experience with a telescope was to look at the moon with a very cheap one and it was an amazing feeling. I cannot wait for this thing to arrive.

    Do you think I would really have the need to buy Zhumell 1.25" High Performance Urban Sky Filter in the future?

    and
    When I look at the images people using the 8SE. I see this product attached to their scopes.
    Celestron - Dew Shields - Dew Shield For C6 and C8 Tubes

    Does this help? Will I need it in the future?

    Thanks
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  4. #14
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    Default Re: A beginner needing advice

    How much of a light pollution do you have?

    Dew shields again depends on your location. If there is not that much dew then a homemade dew shield is more than enough.

    Cheers,
    Giri.
    Celestron Nexstar 8SE
    Celestron Zoom 8-24mm and Celestron 25 mm
    2x and 3x Barlow Lens, Astronomik Visual UHC filter, Celestron IR filter
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    Celestron AVX Mount
    AVS MK IV Video Camera

  5. #15
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    Default Re: A beginner needing advice

    Quote Originally Posted by Tarx View Post
    I have read lots of beginner text about not to buy sets at the beginning.

    The thing is. I am already going to buy some stuff from amazon and have them shipped to my country(like a bag to carry it around for example or the power tank).
    These things are way overly priced like x3 times the price of amazon in my country.
    So when I order lots of things I would like them to be added, not to pay the shipping price seperately in the future when I get more experience.

    It is really disheartening to read what people say with more knowledge and experience then doing exactly the opposite...
    Speaking as someone with a lot of experience under my belt:

    If you are trying to minimise the number of purchases so you get everything together, then I have no problem with getting an eyepiece set. These are quite cheap for what you get (I notice one of the US sites has the set for $128: compared to over $400 from a couple of dealers here in Australia!!), although it is unlikely you will ever use all the eyepieces and filters. (You will find over time and with experience that you will use only one or two of the eyepieces most of the time, and the others rarely, if ever.) With that range of eyepieces you wont find that you need to use the barlow lens very often, if at all.

    I have been observing for over 20 years, and never felt the need to use a lunar filter. Perhaps if you are looking at a full moon you might see more detail with a neutral density lunar filter, but your eye will adapt to the brightness quite quickly anyway (just don't expect to see anything else for a while because your dark adaption will be completely shot! The colour filters may be useful occasionally to tease out a bit more detail on the planets: a red filter can help with Mars, and a blue with Jupiter- but that is the sort of thing you will do once you have gained a lot of experience.

    The eyepieces are basic plossls- and these are quite good quality, with relatively narrow fields of view. They will give good images with the Nexstar telescope, and should last you for many years. The modern, expensive eyepieces have made improvements over the older plossls with wider fields of view and longer eye-relief: but the actual sharpness of the image in the "sweet spot" centre of the view (where you spend most of your time looking!) is really very similar. The 6mm and 8mm eyepieces in the kit will have very small eye-relief, and you will have to put your eye right against the eyepiece to see the whole field of view. This is difficult if you wear glasses. However, you wont often find that you can go much over 200x anyway (ie: with these eyepieces) because of atmospheric conditions.

    As advised above, you can make a dew shield, but again if you can get one as part of a package then it is probably a good idea. I think dew shields are essential for SCT telescopes like the Nexstar8 because they have a glass corrector plate right at the front of the scope, and you will find that they dew up very easily. Without one you will often find that things can start to grow dim very early in a session...

    With regard to the "Urban Sky Filter": these types of filters block out some of the light pollution from narrow-band street lights (like the yellow ones) and can help with certain types of deep sky objects: in particular emission nebulae like the Lagoon; but they don't do much for galaxies, star clusters etc. I am not sure you would find a huge use for one initially, and anyway filters are cheap to post if you want one down the track...

    Good luck with all this. I am sure that if you order the scope with an eyepiece set and dew shield you wont be disappointed. Maybe when you are feeling wealthy you can get "better" eyepieces, a better star diagonal, a deep sky filter, etc. - but by then you will have had enough experience to know exactly what you want. In the meantime you will get an enormous amount of pleasure from an 8" scope.

    All the best,

    Dean
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    Default Re: A beginner needing advice

    Quote Originally Posted by girimurthy View Post
    How much of a light pollution do you have?

    Dew shields again depends on your location. If there is not that much dew then a homemade dew shield is more than enough.

    Cheers,
    Giri.
    Light Pollution map
    I am here.

    I will oftenly take the telescope here.

    Light Pollution map
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  7. #17
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    Default Re: A beginner needing advice

    Quote Originally Posted by DeanD View Post
    Speaking as someone with a lot of experience under my belt:

    If you are trying to minimise the number of purchases so you get everything together, then I have no problem with getting an eyepiece set. These are quite cheap for what you get (I notice one of the US sites has the set for $128: compared to over $400 from a couple of dealers here in Australia!!), although it is unlikely you will ever use all the eyepieces and filters. (You will find over time and with experience that you will use only one or two of the eyepieces most of the time, and the others rarely, if ever.) With that range of eyepieces you wont find that you need to use the barlow lens very often, if at all.

    I have been observing for over 20 years, and never felt the need to use a lunar filter. Perhaps if you are looking at a full moon you might see more detail with a neutral density lunar filter, but your eye will adapt to the brightness quite quickly anyway (just don't expect to see anything else for a while because your dark adaption will be completely shot! The colour filters may be useful occasionally to tease out a bit more detail on the planets: a red filter can help with Mars, and a blue with Jupiter- but that is the sort of thing you will do once you have gained a lot of experience.

    The eyepieces are basic plossls- and these are quite good quality, with relatively narrow fields of view. They will give good images with the Nexstar telescope, and should last you for many years. The modern, expensive eyepieces have made improvements over the older plossls with wider fields of view and longer eye-relief: but the actual sharpness of the image in the "sweet spot" centre of the view (where you spend most of your time looking!) is really very similar. The 6mm and 8mm eyepieces in the kit will have very small eye-relief, and you will have to put your eye right against the eyepiece to see the whole field of view. This is difficult if you wear glasses. However, you wont often find that you can go much over 200x anyway (ie: with these eyepieces) because of atmospheric conditions.

    As advised above, you can make a dew shield, but again if you can get one as part of a package then it is probably a good idea. I think dew shields are essential for SCT telescopes like the Nexstar8 because they have a glass corrector plate right at the front of the scope, and you will find that they dew up very easily. Without one you will often find that things can start to grow dim very early in a session...

    With regard to the "Urban Sky Filter": these types of filters block out some of the light pollution from narrow-band street lights (like the yellow ones) and can help with certain types of deep sky objects: in particular emission nebulae like the Lagoon; but they don't do much for galaxies, star clusters etc. I am not sure you would find a huge use for one initially, and anyway filters are cheap to post if you want one down the track...

    Good luck with all this. I am sure that if you order the scope with an eyepiece set and dew shield you wont be disappointed. Maybe when you are feeling wealthy you can get "better" eyepieces, a better star diagonal, a deep sky filter, etc. - but by then you will have had enough experience to know exactly what you want. In the meantime you will get an enormous amount of pleasure from an 8" scope.

    All the best,

    Dean
    I will go with the basic eyepiece set for now. Then as you've said I will move on to more expensive ones.
    I have a beginner question.
    Amazon.com : Celestron Accessory Kit : Educational And Hobby Telescope Accessories : Camera & Photo
    in this set there is
    2x, 1.25-inch Barlow lens

    I am the only one who is not using glasses in my family. Can I use 2x, 1.25-inch Barlow lens to make 17 mm into 8.5 mm for zoom for the ones who use glasses in my family?
    Could I or anyone who is not using glasses also benefit from this Barlow lens?

    Thanks for sharing your experiences.

  8. #18
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    Default

    Yes, you can use a Barlow for that - with basic scaled designs like plossls, many people prefer the bigger eye relief and larger eye lens you get by barlowing a longer focal length eyepiece instead of using a short focal length one.

    (Premium eyepiece designs often have long eye relief and large eye lenses across the whole range of focal lengths, so there's no need to Barlow them for comfort).

  9. #19
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    Default Re: A beginner needing advice

    I live in a very humid city.
    I have read this website.
    Dealing With Dew - Sky & Telescope
    Based on the information here. At nights metal objects get very wet where I live.
    I will buy the dew cap right away.

    I haven't have fully read the manual of the telescope yet but I want to know your knowledge and experience.

    1) What do you guys do when dew actually gets to the glass?
    2) How do you clean it? Do I also have to invest on cleaning equipment in the near future?
    3) Is blowing pressured air for dust efficient? Which method is less risky or efficient?
    4) Is it so early for an investment on fake star light devices for collimation yet?

    Thanks
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  10. #20
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    Default Re: A beginner needing advice

    In addition to that.

    I will keep the telescope inside.
    During winter I will have condensation when I move it inside.
    I do not have a garage. I do not want to leave it outside to avoid thefts and bad weather.
    I don't have any choice but to move it inside.
    How do you guys fight condensation?

    I have read some text but the instructions were not so clear.
    Do I close the optics tightly before moving it inside?

    Or move it inside and let the condensation evaporate inside and then close the optics?

    Thanks
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