Author Topic: Zhumell Z8 in The Gorge seeking nice EP setup!  (Read 279 times)

poithegepur

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Zhumell Z8 in The Gorge seeking nice EP setup!
« on: December 28, 2017, 01:51:02 AM »
Hi there,

Since this is my first post and I happened to skip the official Introduction page, I will simply ask my question(s) and briefly introduce myself here instead.

After much search and review (thanks in large part to this forum) I recently purchased my first "Real" telescope, a Zhumell Z8. The main purpose is not only for myself but to help excite my family's interest as well. At first I went back a forth between GoTo and PullTo scopes, leaning towards the PullTo due to thepreferred Dobsonian setup, but as many of you state to "Learn the Sky", and "Bang for your Buck"are actually great ideas when starting out and so I ultimately purchased as I did.

I currently reside in Hood River, OR and except for the current "Eagle Creek" fire happening in our area there really is not a lot of light pollution here in The Gorge. This can of course makefor some great viewings.

So you know, I am still very muchin the beginning stages, even though Ihave played around with generic telescopes since childhood. Anyway, I am really excited to be here to learn as much as I can, andalso excited to be finally divulging into a subject I should have seriously begana long time ago...

Now on to my question(s)...1.) As many of you know the Z8 comes with both a 30mm (2") and a 9mm (1.25") eyepiece. Like others I am looking to have the best EP setup related to this scope (FR - f/5.9, FL - 1200mm, A - 203mm). I am not going to place a max value of investment as I believe all EP's should be seriously considered, especially realizing these can always be transferred to additional equipment as I progress. What I will say is that I prefer to stay with 2" pieces which have as wide a viewing angle as possible... so Basically, whatare the best EP's for the money that will also allow me to enjoythe Z8 to its full potential?... Also, please keep in mind I do have the Zhumell 2x Barlow, and while maybe not the best in quality (will upgrade as I get more experienced) Iam hoping it allows me toonly need a few quality pieces for my setup.

2.) ...Ok, so I do have one more question to ask: The Z8 came with an 8x50 finder, I purchased an additional Telrad after reading many positive recommendations. My question is how and where do you mosteffectively place the Telrad onto the scope (I would like to make use of both the finder scope and Telrad)?... I have heard you can apply the Telrad directly to the scope, but where is best?... I have also seen an adapter online that can hold what appears to be two finder scopes, would this work in my case (finder and Telrad)?...

Please know I do appreciate any and all comments so thank you ahead of time!

- not so out there.



Nong Inthisorn

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Re: Zhumell Z8 in The Gorge seeking nice EP setup!
« Reply #1 on: December 29, 2017, 03:34:17 PM »
to CN and this hobby! You made a fine purchase on a 8" Dob. I'll get started now:

Well, if you place no price limit, I'd easily say the best eyepieces are the entire line of 100 degree eyepieces from Explore Scientific.

https://explorescien...series-eyepiece

However, most of us cannot afford to buy them all at once. Explore Scientific also has more lines of eyepieces of decreasing FOV you can see in the link, that are much much cheaper, but maintain high quality.

At the very cheap end, you can get Plossls, which are relatively cheap and decent. Check out Orion's line of "Sirius Plossls" here:http://www.telescope.../sc/47/e/51.uts
Other companies have other lines of Plossls too.

Meade has their UWA line, which I happen to have one of (the 14mm UWA is my most used eyepiece now).
https://www.meade.co...ngle.html?cat=8

Agena has their wonderful line of Starguiders:
http://agenaastro.co...piece-18mm.html This is only the 18mm version..

Let's not forget Naglers rom Televue (which are of very very high quality):
http://www.televue.c..._page.asp?id=21

There are also Zoom eyepieces, varying from the cheap to the relatively expensive Baader Hyperion....

Basically, there are a ton of lines and varieties and designs to choose, and it really depends on what scope and how much $$$ you have.
I can't tell you which one has the most value, they are all worth the money paid for them. You really have to see how much you can spend.

We can tell you what FL eyepieces you should look for with the Z8.

You should have a ~30mm, ~20mm, ~15mm, ~9mm, ~6mm, ~3mm, etc. Plus or minus a few on all of them, since they are a lot of FLs. The max eyepiece that I would put is a 3mm, which should only be used when the seeing is crystal clear. Medium range eyepieces are gonna be the most used, and widefield eyepieces show a wide field. You can also get zoom eyepieces (and use your Barlow) to reduce the number of EPs needed.

You don't need all of these EPs, and they don't have to be the exact number either. I would consider a 8mm and a 10mm to be similar eyepieces. You don't need all of these FLs, you can create your own line. There are only limits to how high you can go (3mm) and how low you can go (~30mm?) on magnification. THERE is a TON of wiggle room for you to pick and choose EPs.

Now you need to see what you can afford for all of these FLs, and which designs/lines of EPs to get.

Placing the Telrad, just make sure the base is perfectly aligned to the tube, put it near the front, and you'll be fine.

cormuresa

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Re: Zhumell Z8 in The Gorge seeking nice EP setup!
« Reply #2 on: December 31, 2017, 04:44:14 AM »
Thanks Overnight!

With what you stated, it seems at this point I should concentrate on a nice 20mm and 6mm... I already havea 30mm and with the Barlow would take care of the 15mm as well, for now. I also have a 9mm even though 1.25" (again, good for now!)... then there's the 3mm?... hmm. I hesitate with this one since as you again state I most likely would not use often... I think I remember others saying anything under a 5mm may not be worth it for my particular scope size... Wait a second, this is where the Barlow comes into play again, a 6mm to a 3mm!..

Great, even moreI believe a 20mm and 6mm is where I needto concentrate.

...now which brand? Didn't mean to hint at being made of money or anything, just a firm believer in a few quality pieces is always better than a lot of OK pieces... at first I was thinking I may need at least 3 different eyepiece, but only needing 2 at this point will surely help with overall cost!

... Is there such thing as too wide of a viewing angle when selecting different EP's?

Any suggestions on a 20mm or 6mm that might really work in my case (do not where eyeglasses if this helps)?...

Also, can anyone chime in on Telrad placement?

Thanks!

isveheartle

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Re: Zhumell Z8 in The Gorge seeking nice EP setup!
« Reply #3 on: January 01, 2018, 01:32:11 AM »
Quote
Thanks Overnight!

With what you stated, it seems at this point I should concentrate on a nice 20mm and 6mm... I already havea 30mm and with the Barlow would take care of the 15mm as well, for now. I also have a 9mm even though 1.25" (again, good for now!)... then there's the 3mm?... hmm. I hesitate with this one since as you again state I most likely would not use often... I think I remember others saying anything under a 5mm may not be worth it for my particular scope size... Wait a second, this is where the Barlow comes into play again, a 6mm to a 3mm!..

​Well, first of all, 1.25" is not necessarily worse than 2". 2" eyepieces are used usually with long FL eyepieces like 30mm, where 2" is definitely an improvement. With FLs like 3-9mm, its not that important at all.

​Hey, some people even swear by old 0.965" eyepieces!

Great, even moreI believe a 20mm and 6mm is where I needto concentrate.

​Well, first of all what design are the 30mm and 15mm? You should inspect that first. If they are Kellners or Modified Achromats, its well worth replacing them (they aren't bad, but you'll get a big improvement). My most used eyepiece is a 14mm with my 8", so that might be a good place to replace your EPs.

​But your logic is correct.

...now which brand? Didn't mean to hint at being made of money or anything, just a firm believer in a few quality pieces is always better than a lot of OK pieces... at first I was thinking I may need at least 3 different eyepiece, but only needing 2 at this point will surely help with overall cost!

... Is there such thing as too wide of a viewing angle when selecting different EP's?

​No. More FOV is better, as long as its well-executed (which most of the ones I listed above do flawlessly). Some eyepieces don't.

Any suggestions on a 20mm or 6mm that might really work in my case (do not where eyeglasses if this helps)?...

​This depends on what you want to pay. If you are literally willing to pay a very huge sum, then the ES 100 degree series or Naglers would be the best quality you could desire.

Also, can anyone chime in on Telrad placement?

Thanks!


Adam Rice

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Re: Zhumell Z8 in The Gorge seeking nice EP setup!
« Reply #4 on: January 09, 2018, 05:36:20 AM »
Well, Televue eyepieces are probably the best you can get, but they come with a cost. Some of them can cost as much or more than you paid for your scope. The top of the line Ethos have a 100 to 110 degree fov, the Naglers an 82* fov, the Delos a 72* fov, the Panoptics a 68* fov, the Delites a 60* fov and the plossels a 50* fov. I plan on a couple of Delos for medium and high power and a 32 mm plossel for my SCT. It may take me awhile to get there since I'm on a fixed income, but I think they're worth it. All my personal preference of course.
Explore Scientific eyepieces are highly recommended by a lot of folks here also. Others can tell you more about them.

penliipamex

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Re: Zhumell Z8 in The Gorge seeking nice EP setup!
« Reply #5 on: January 10, 2018, 12:20:09 PM »
If you limit yourself to 2 inch eyepieces, you will create unnecessary and expensive hurdles that may cause you to overlook some of the finest eyepieces available. Two inch barrels on eyepieces, those like your 30mm, are dictated by two main factors considered together: the focal length of the eyepiece and the AFOV (apparent field of view) of the eyepiece. Once the focal length plus AFOV exceed a certain critical value, a minimum of a two inch barrel is needed to make the eyepiece work properly. Best to let the manufacturer of the eyepiece determine the optimum barrel diameter for each focal length/AFOV combination.

I've found that the diameter of your eyepiece exit pupil is a useful indicator of the best use of a given eyepiece. Exit pupil can be calculated by dividing the focal length of the eyepiece by the focal ratio of the telescope ( Z8 focal ratio is about f/6 ). For example, your 30mm eyepiece will have an exit pupil of 5mm (30mm/6 = 5mm).

Large deep sky objects like the Veil Nebula, North America Nebula and many others are more extensive than the field of view that your Z8 can show you. Many beginners get lost trying to make out the extent of these large celestial objects because they can't take in the shape all at once because the telescope's field of view is too narrow. For this type of object, you will want an eyepiece that produces the widest true field of view for your Z8. Your 30mm eyepiece TFOV is pretty wide but some eyepieces will better it.

Generally, the longer the eyepiece focal length, the wider your telescope's true field of view will be. At the same time, the longer the eyepiece focal length, the larger its exit pupil will be. Many feel that in order to get the most of your 8 inch aperture, the maximum exit pupil your telescope produces should not exceed the diameter of your own eye's dark adapted pupil.

At the other extreme, I've found that an exit pupil somewhere between 1.8 - 2 mm allows me to detect the faintest extended objects (like galaxies) that my dob is capable of showing me. Globular clusters show best with approximately 1.5 mm exit pupil.

For bright, tiny objects like observing planets and the faintest stars, however, I need an exit pupil around 1mm or so.

Splitting double stars can take even smaller pupil than planets. For exit pupils less than 1mm, I recommend achieving that with the help of a Barlow lens as it saves expense and it's rare that the atmosphere will allow a clear view at extreme magnification.

I like wide-field eyepieces for my dob. I mean wide apparent field of view. I find it much easier to navigate, locate and track targets with wide-field eyepieces on my dob's manual mount. I don't like my narrow field eyepieces very much - Too much like tunnel vision - Claustrophobic.

You've chosen a very capable telescope. The right eyepieces will really make it come alive. First, use the heck out of the eyepieces that you already have. You really need a lot of chair time under the stars before your eyepiece preferences become clear to you. I recommend buying one eyepiece at a time as you find a task that your current eyepieces can't handle satisfactorily. I would avoid eyepiece 'sets'. I would buy a zoom eyepiece before I'd buy a set. Best wishes for your astronomy adventures.
----------
C

kentifilitt

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Re: Zhumell Z8 in The Gorge seeking nice EP setup!
« Reply #6 on: January 12, 2018, 05:08:46 AM »
Couple of aspects. The dobsonian design is fine if all the people can use one, not everyone gets the knack of locating and nudging a dobsonian mount. If one of your family do not then they are excluded. If the family do not get on with the dobsonian you have removed any hope of exciting your family's interest.

The other aspect is that on a goto the target is tracked and you look, next one looks, next one looks and it is always in view. On the dobsonian you find and look, the next has to find and look then the next has to find and look. Can take a long time to work through everyone and the excitement level is reduced - waiting around is boring.

At public events we lock the 10" dobsonian away, takes too much time for people to actually get anything to see. It is a nice impressive scope but aspects of it exclude it from use.

The idea that a goto means you do not learn the sky is best described as rubbish. Actually may be one of the better ways since you have to plan where to send the scope. How many times have you read of the goto was off by about n degrees. That means the person knows exactly where the object is, where the scope should point and then what the difference is between the 2 directions.

Another way to put it: You ask the scope to goto Arcturus, a big blue/white stars comes into view. Do you blindly accept that as Arcturus? I know no-one with a goto that would. Many would at that stage shoot the scope but not one will believe it.

Why 2" eyepieces. Just cannot see you will ultimately gain a lot. I have 1.25" and 2". The 2" get close to no useage at all, too big, and no real advantage. May look impressive but tend to gather dust. Can you easily get a 2" eyepiece to give 150x or 160x for viewing Saturn, or M57 ?

bardeperdi

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Re: Zhumell Z8 in The Gorge seeking nice EP setup!
« Reply #7 on: January 13, 2018, 04:39:20 AM »
Hi OutThere,
Welcome to Cloudy Nights!

You have a great scope that will provide a lifetime of great views. My recommendation for eyepieces in the 20mm and 6mm range are as follows

Ultimate $$$$
Tele Vue Ethos 21mm 100 degree. It doesn't get any better than this. Take his eyepiece to a dark site and you will be amazed
Tele Vue Ethos 6mm 100 degree. Ditto

Premium $$$
Tele Vue Delos 17.3mm 72 degree. Excellent views with 20mm eye relief
Tele Vue Delos 6mm 72 degree. Ditto

Great $$
Explore Scientific 18mm 82 degree. Excellent views. 13mm or so eye relief
Meade UWA 5.5mm 82 degree. Ditto. Best bang for the money. can find on Amazon for $109

sennessningwilch

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Re: Zhumell Z8 in The Gorge seeking nice EP setup!
« Reply #8 on: January 13, 2018, 05:42:32 AM »
Looks like eyepieces have been addressed, so I'll leave that alone. You asked about Telrad® placement. In general, you want to have your Telrad®, RACI and focuser near one another to minimize moving between devices in order to find or get near a target or reference object and then take a look in the RACI to fine tune the finding. So, a three step operation... look in Telrad®, look in RACI, look in scope eyepiece, small movements for each look. Everything near the focuser to minimize up and down. On most scopes, this is possible. Because of the way I designed my 10 inch Dob mounted Newt, I have my Telrad® on a 2 inch riser, on the opposite side from my 9x50 RACI, which is mounted near my focuser. I didn't have a choice, but I have not found it to be a real problem. Here is a pic of me and my 6 year old granddaughter looking at Saturn...
^^^ I was looking and keeping the scope on target using the 9x50 RACI, while she was looking through the eyepiece...

This arrangement works VERY well... for me...

Of course, as with anything astronomical, YMMV...

Keep looking up!

CB


Lamar Davies

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Re: Zhumell Z8 in The Gorge seeking nice EP setup!
« Reply #9 on: January 13, 2018, 01:15:46 PM »
My two cents? The Explore Scientific line. Best value for the $$$, price v. quality. I have the full line of ES 82* EP's to use with my 12" Orion dob. Don't underestimate 1 1/4" EP's. They can provide excellent viewing/framing of certain objects, particularly Planets and Globs. To me, it's about FOV, but I will say that even though it's an 8" dob, if I had the $$$, I would try to acquire a couple of Orthos to boot. Great for Planets and Double Stars. They only come in 1 1/4" for the sizes you'd be interested in. 9, 12.5, and 18MM would be good choices. I'm sorry I can't help you with the Telrad problem. Others will be more helpful...

STARKID2U

omunsopoo

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Re: Zhumell Z8 in The Gorge seeking nice EP setup!
« Reply #10 on: January 15, 2018, 07:11:01 PM »
Thanks everyone for your replies!

Overnight: With your additional info. Has given me a mindset to maybe slow down a bit in my selection of EP choices... hardly anything is cut and dry, especially in the beginning.

Oriondk: Thank you for mentioning specific brands and to what degree of view each can be known for. This is a big help for quick reference.

Cames: Thanks for the insight regarding EP size. I have begun to second guess my need for only 2" EP's, especially regarding smaller focal lengths (I do understand it can help save cost as well)... A zoom eyepiece... now this has me thinking!

Sg6: You make good points concerning GoTo's. Luckily, so far my family has really taken a liking to the Z8, especially from my 12yr. old who jumped right in to relocate object after discovering it had moved out of view... I am starting to think he may be better suited for this hobby than even I... Why 2"? Simply due to actual barrel size of scope and possibly not having to mess with adapters between various 2" and 1.25" adapters.... but I am open!

Tony_spina: Thank you for the info. Greatly helps me understand quality versus price with recommended EP's.

SeeBee1: Thanks for being the first to mention Telrad placement. Yes, I agree a riser mount does seem to be a logical addition for this... always great to see young ones joining in on the experience.

Starkid2u: Thanks for mentioning and confirming Explore Scientific as choice. I have heard from others and seen in reviews that they are in fact great EP's. This will be on top of my lost as I go this route.

....OK, so here is where I am at. I am now leaning towards a Zoom EP, simply for my current (somewhat immediate) need. ... I want to make the most of my scope early on and not have anyone lose interest due to limitations of EP sizes. I feel a Zoom right now would allow myself and family to enjoy a variety of objects as we also discover which sized EP's would be most suited/used in the future.

With this said, are there currently good (great) Zoom pieces out there that could be recommended? Also, and excuse me for being still new at this, do these Zoom EP's have reference marks in which to know what focal length you might be at while viewing?... perhaps the reference marksare on the scope's focuser itself?... Which range zoom would be best, anywhere between 32-5mm?..

Just wanting an understanding if I'm on the right track before making a decision... And somebody please stop me if this might be a waste of my time and money! ...Zoom EP does not need to be perfect, as I don't think a zoom piece can be when compared to individual EP's, but quality and usefulness is a priority.

Also, does anyone know if Zhumell and Orion use the same sized mounts for their finder scopes? I ask because Orion I believe makes a makes an adapter that holds 2 scopes side by side... wondering if this might work for my finder scope and Telrad setup.

Thanks again for all replies!

Todd Treser

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Re: Zhumell Z8 in The Gorge seeking nice EP setup!
« Reply #11 on: January 16, 2018, 11:06:32 PM »
Congratulations on your new scope.  You made a great selection and I know it will serve you well.

Telrad -

I have a 9X50 RACI finder scope on my Orion XT8 Intelliscope.  Very similar to yours and I like it a lot.  I added a Red Dot Finder but a Telrad might have been a better choice.  I mounted it near the front of the tube on the other side of the 9X50.  As I only use it for initial positioning, having to lean over to use it is not an issue. After that I switch to the 9X50.

Since my sky is so badly light polluted I don't use the Red dot for star hopping. If I had the Telrad I sill might not use it very much. Most of my hopping is done in the 9X50 RACI.

Eyepieces -

My scope is very similar to yours. I am going to explain several approaches and then my favorite rather than just tell you to buy something.

This will give you an approach to plan your eyepiece purchases. This works for any type of telescope and any kind of eyepiece but since yours and mine are so similar I think it will work especially well for you. 1200 mm FL and 8"/203 mm aperture.2" Eyepieces 1 or 2

Here I use a 38 mm 2" 70 degree 31.5X and 2.2 degree FOV. This is my lowest power widest view eyepiece. When used on the moon it feels like I am about to enter into orbit.Also excellent for large DSOs like the Andromeda Galaxy and the Pleiades. Sometimes I barlow this to 19 mm

25 mm 2" 70 degree. 48X and 1.46 degree FOV - Love this for DSOs, mainly larger star clusters, bright nebula and the like. Sometimes I barlow this to 12.5mm.

You could use a single 32 mm 2" 70 degree. Or you can just stay with the 30 mm you got with the scope. I think it is only 56 degree AFOV but that is fine for now. No need to buy anything in 2" at this time, but here is what I would recommend.

If you are a little more budget minded, like I am, I would suggest the Agena Astro SWA. They are comparable to the Orion Q70. If you have a richer budget then the Explore Scientific 68 degree would be my recommendation.http://agenaastro.co...scientific.htmlMidrange and high power - 1.25"

There are three ways to fill out your mag range:
<ul class="bbc">Single FL eyepieces
Singles FL + Barlow
Zoom + Barlow

Mag targets based on single FL eyepieces ( just arbitrary spread)

40X = 30 mm 2" (came with the scope)
100X = 12 mm
133X = 9 mm ( came with the scope)
171X= 7 mm
240 X = 5 mm
300X = 4 mm ( likely this won't get much use)Single FL + barlow – I use a 2" barlow but most people don't barlow their 2" eyepieces so I am just going to suggest you barlow the 1.25s

12 mm – 2X barlow for 6 = 200X (useful mag that fills in between 7 and 5)
9 mm – 2X barlow for 4.5 mm = 266X ( you could drop the 5 mm)
​7 mm - 2X barlow for 3.5 mm = 342X ( You will rarely be able to go this high except maybe for the moon)

If you go the single FL or Single + Barlow I highly recommend the Explore Scientific 68 or 82 degree line
http://agenaastro.co...scientific.htmlZoom eyepiece + barlow which is my favorite. 1 eyepiece + 1 barlow

24 mm to 8 mm zoom = 50X to 150X and everything in between
zoom + 2X barlow = 100X to 300X  and everything in between.

Even though I have 20 eyepieces my preferred approach is zoom + barlow. I do have some special use single FL eyepieces for very high power, but the zoom is in the focuser more than all others combined. Most nights the zoom is all I use in 1.25".I have both the Celestron and the Baader Hyperion 8-24 zooms. If you are on a tight budget, get the Celestron and a 2X barlow.  If you have a richer budget get the Baader Hyperion Mark IV with a 2X barlow or packaged with the Baader 2.25 barlow which will take you to 337Xhttp://agenaastro.co...-eyepieces.html
<ul class="bbc">I never expected the zoom eyepiece to become my primary eyepiece, but it has.
The Celestron is good and comparable to my Plossl eyepieces
the Baader Hyperion is great and comparable to my Explore Scientific eyepieces
Watching doubles split as I rotate the barrel is wonderful
One filter serves over a wide range of magnifications, no screwing and unscrewing to try other eyepieces
The Baader is a 1.25" zoom but it has its own 2" collar so, in my XT8i 2” focuser I can move from my 2" low power eyepieces to the zoom and a wide range of magnifications without playing with adapters.
Moving smoothly between small changes in magnification helps when seeing is not the best
Sharing the view with others is easier, especially in my manual tracking Dob - I can hand it over at low mag so it stays in the view longer, and then have them zoom back in to whatever magnification works best for them rather than for me.
Kids love the zoom
My eyepiece case has been greatly simplified

Transparency and Seeing - Note that atmospheric conditions, rather than your telescope, will often be the limiting factor on practical magnification for any given observing session. When the atmosphere is turbulent, poor “seeing” conditions, you may find that the image breaks down too much above a certain magnification regardless of the size of your telescope. Transparency is also a factor that can be affected by humidity, air pollution and thin clouds that you may not be able to see. My 8”/203 mm often tops out around 200X due to “seeing” and transparency. However, under exceptional conditions you may be able to go higher than 300X but you don't need to set-up for that right now.
REFERENCE LINKSSelecting an eyepiece - Orion telescope
This is a very general discussion of eyepieces and why there are a variety of designshttps://www.youtube....h?v=m7u9Q5hV7ycEyepiece Designs - This is the one I turn to when I am trying to understand or explain the
differences between the various designs. There are many different designs, Many are named
for their original designer, such as Huyghens, Ramsden, Kellner, Plossl, Konig, Erfle, Branden and Nagler.http://www.chuckhawk...ece_designs.htmzoom eyepiece review – Includes the Celestron zoom – About $65
This is an older review but I find the comments nicely reflect my Celestron zoomhttp://www.chuckhawk...m_eyepieces.htmBaader Hyperian Mark III Clickstop zoom review – About $280
I have an older model Baader Hyperion, but I find the review accurately reflects my experience.
The current model is the Mark IV.http://www.weasner.c...iece/index.html

Jay Cole

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Re: Zhumell Z8 in The Gorge seeking nice EP setup!
« Reply #12 on: January 16, 2018, 11:48:38 PM »
I have a Z8 as well. It is a great scope. I also own lots of really nice eyepieces including Ethos
and Explore Scientific 100's. If starting over I would get the Lunt 100 degree 20 and 9mm eyepieces.
I have one Lunt and think it is the best eyepiece buy out there. Cost is even less than the Explore
Scientific eyepieces. They have not generated the buzz that ES has yet but most people that
have tried them prefer them to ES.

Edit: Oh yes, the Telrad... mount it as high on the scope as possible, right to the very top.
It has its own base mounted on double sided sticky tape. I use the optional 4" riser which
rises the Telrad high enough away from the tube that sighting through it is very easy. The
lower the Telrad is, the harder it is to actually use.

Daniel Ross

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Re: Zhumell Z8 in The Gorge seeking nice EP setup!
« Reply #13 on: January 18, 2018, 03:12:49 AM »
I should have mentioned earlier about the 2" versus 1 1/4" question. Most people will have one or two 2" eyepieces at long focal lengths for wide field views. They are great for that, but really aren't needed at medium and high powers. Glad to see you're reconsidering them.
The zoom eyepiece that everyone recommends is the Baader Hyperion Zoom. There are other cheaper ones but I'd get the Baader if I was buying a zoom. I really like to get a look through one to see what all the hype is about.
The Explore Scientific eyepieces are a good choice, too. It's always good to invest in quality equipment, imho. I learned that when I was doing photography.

luseatcidood

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Re: Zhumell Z8 in The Gorge seeking nice EP setup!
« Reply #14 on: January 18, 2018, 06:11:33 AM »
If you are looking for a zoom go for the Baader Zoom and 2.25x barlow. If you go to Agena Astro the sell the combo at a discount

http://agenaastro.co...ow-2454827.html