Author Topic: inexpensive zoom  (Read 178 times)

Nathan Roberts

  • Active Astronomer
  • ***
  • Posts: 129
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
inexpensive zoom
« on: December 28, 2017, 09:24:08 PM »
First, I know, you get what you pay for, but... I am thinking of putting together a Grab-n-Go Mak, probably 90mm, and only want a Zoom eyepiece for it. I see the Meade, Celestron, Agena Astro brands all have a 8-24mm Zoom for around $65. What are the general thoughts on them?

thank you,
David



calbeyrefrows

  • Active Astronomer
  • ***
  • Posts: 137
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: inexpensive zoom
« Reply #1 on: January 04, 2018, 11:22:13 AM »
All well regarded. A lot of value for a little money. The Zhumell 8-24
zoom is just as good.

Isaac Griffin

  • Active Astronomer
  • ***
  • Posts: 111
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: inexpensive zoom
« Reply #2 on: January 10, 2018, 08:26:26 AM »
Some of the cheaper 7-21x zoom eyepieces have a narrow AFOV. 8-24x zoomers are better.

consurflola

  • Active Astronomer
  • ***
  • Posts: 119
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: inexpensive zoom
« Reply #3 on: January 10, 2018, 07:24:26 PM »
Quote
All well regarded. A lot of value for a little money. The Zhumell 8-24
zoom is just as good.


I use a Zhumell 8-24 in my 90mm mak. It works great for the price. The 8mm setting is a bit too much power form most objects (other than the moon).
$46.98 at telescopes.com

xacypcheati

  • Active Astronomer
  • ***
  • Posts: 117
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: inexpensive zoom
« Reply #4 on: January 11, 2018, 12:42:22 AM »
wow, i thought i was going to get beat up in the parking lot for asking about cheap zooms, sounds like these aren't so bad after all!
Thank you

Louis Sullivan

  • Active Astronomer
  • ***
  • Posts: 125
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: inexpensive zoom
« Reply #5 on: January 11, 2018, 02:53:59 AM »
I've used the Celestron 8-24 zoom with my club's library loaner--a 4.5" Starblast--and been very impressed. Optical quality is quite good for the price. The zoom function works very smoothly and is easy to turn. And there are T threads under the rubber eyeguard. A slight refocusing is needed when going from 24 down to 8 but I expected that at this price point. After using it, I'm keeping an eye out for a used one for myself for the same kind of grab n' go setup you're describing.

Cheers and clear skies,
Pauly

Jaye Agting

  • Active Astronomer
  • ***
  • Posts: 122
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: inexpensive zoom
« Reply #6 on: January 11, 2018, 05:29:54 PM »
Quote
I've used the Celestron 8-24 zoom with my club's library loaner--a 4.5" Starblast--and been very impressed. Optical quality is quite good for the price. The zoom function works very smoothly and easily. And there are T threads under the rubber eyeguard. A slight refocusing is needed when going from 24 down to 8 but I expected that at this price point. After using it, I'm keeping an eye out for a used one for myself for the same kind of grab n' go setup you're describing.

Cheers and clear skies,
Pauly

I have the same one, and I like it too, although I use the 8mm setting the most, as I have better quality EPs for my low power needs than what the Zoom provides.

John Pfister

  • Active Astronomer
  • ***
  • Posts: 130
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: inexpensive zoom
« Reply #7 on: January 12, 2018, 10:47:11 AM »
This zoom ep (TS Zoom 7x21) I bought under 30 euro new. It is very narrow but the viewqualityis excellent when using itwith my Lunt 35 deLuxe H-alpha solar scope.I think it is ok in the Lunt because i only use a small part (H-alpha) of the light.
When i use this 7x21 zoom with my Takahashi,i feel that even cheap Plossls (Vixen NPL) are a far better choice then the zoom. But overall i am impressed by the performance of such a cheap zoom.
Buildquality is good. Don't know it this Telescope Service (TS) zoomis the same as other cheap zoomswith this 7x21 range.
Hope this is somekind ofhelp formaking your choice...I mean it don't have to be always expensive

alnepensa

  • Active Astronomer
  • ***
  • Posts: 125
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: inexpensive zoom
« Reply #8 on: January 15, 2018, 02:02:10 PM »
Your post elicited some very interesting comments about the benefits of purchasing an inexpensive zoom eyepiece. I did a little google search and was surprised at how many positive reviews these inexpensive ocualrs received. Someone suggested they are especially handy for public viewings. I think I'll buy one and pop it in my telescope bag. Thanks for posting this helpful topic. Mark

luseatcidood

  • Active Astronomer
  • ***
  • Posts: 109
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: inexpensive zoom
« Reply #9 on: January 18, 2018, 07:30:35 AM »
I suggest the Zhumell Zoom for anyone wishing to dip their toes into the Zoom Pool. About seven years ago, I had one, soon followed by a second for binoviewing. I used the Zhumell Zoom at dark sites for deep sky, and at home for planet/lunar. Clear, sharp images.

I kept the Zhumells until I acquired a couple Baader Zooms and a Leica ASPH Zoom.

Mike

fibcapoti

  • Active Astronomer
  • ***
  • Posts: 124
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: inexpensive zoom
« Reply #10 on: January 20, 2018, 04:16:05 PM »
Are there any which have more eye relief than others?
Bob

heelmiliso

  • Active Astronomer
  • ***
  • Posts: 115
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: inexpensive zoom
« Reply #11 on: January 21, 2018, 06:41:17 AM »
Meade zoom. It's surprisingly sharp throughout the range.

anpiecaga

  • Active Astronomer
  • ***
  • Posts: 136
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: inexpensive zoom
« Reply #12 on: January 23, 2018, 06:46:52 PM »
I use the Orion zooom 7.2mm-21.5mm. Is is very sharp and works well for planetary viewing in long FL scopes like my SCT's. There's a little ghosting on Jupiter but otherwise great. ER is around 15mm according to the spec. I don't wear glasses.

Anthony Cejudo

  • Active Astronomer
  • ***
  • Posts: 120
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: inexpensive zoom
« Reply #13 on: January 26, 2018, 01:10:00 AM »
I have the Celestron and like it enough, thinking it would be a good GnG with the st80/photo tripod. I think the main complaint with these is a little bit narrow FOV. No information on that. It's a pretty clear eyepiece.

Adam Cormier

  • Active Astronomer
  • ***
  • Posts: 111
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Re: inexpensive zoom
« Reply #14 on: January 28, 2018, 10:56:22 PM »
thanks for all the advice, i ordered the Celestron!