Jump to content

Welcome to Stargazers Lounge
Register now to gain access to all of our features. Once registered and logged in, you will be able to create topics, post replies to existing threads, give reputation to your fellow members, get your own private messenger, post status updates, manage your profile and so much more. If you already have an account, login here - otherwise create an account for free today!
Photo

Revalation 20x80 v Helios Quantum 20x80

- - - - -

  • Please log in to reply
8 replies to this topic

#1
CHICKENMAN66

CHICKENMAN66

    Vacuum

  • New Members
  • 1 posts
Hi, I am new to Astronomy and want to start out with bins and learn my way round the sky before I progress to a telescope. Can anybody give me some reviews on the bins in the title as the Helios are near £100 more for the same size. Hard to find any up to date reviews. You get what you pay for will not be much help. I need to know about the focusing and clarity of imaging before I buy some. Did read something about flaring in the Revalations. No local shop to go in to to ask.

#2
Psychobilly

Psychobilly

    Supernova

  • Global Mods
  • 29,407 posts
  • Location: Blue Green Planet , Orbiting a G2V Star, The Orion Spur, Milky Way.... Some Like To Call Home.. :)
Hi Welcome to the forum..

I have moved you post into the Binocular board so that it will be seen by people already using binos...

Peter...

We choose to image with DSLR’s. We choose to image with DSLR’s in this decade and do the other things, not because they are easy, but because they are hard, because that goal will serve to organize and measure the best of our energies and skills, because that challenge is one that we are willing to accept, one we are unwilling to postpone, and one which we intend to win, and the others, too.

 

 

Canon 5D Mk III , 7D, EOS M , 1000D (Baader BCF), 350D (Full Spectrum)  and some Nice Glass from 10 to 600mm ....  Nikon D200 & D50


#3
Tribal-Wolf

Tribal-Wolf

    Banned User

  • Beyond The Event Horizon
  • 848 posts
  • Location: East Yorkshire
I may be wrong here but the optics have a good chance to be made by the same company. I came across a Chinese website where they supply large binoculars to most of the big names in astronomy and they showed them with various casings which were similar if not the same to the brand name units. This was not a cheap site selling junk it was a legitimate company who only deal with the 'trade'. I would say get the ones you think would be the best for you regarding style as I think they both have the same optical spec.
Chris

Sky-Watcher 200P FlexTube Synscan GoTo.
TAL 2x Barlow
Revalation 2x Barlow
Some EPs
Phillips SPC900NC LX Modded
Canon 1100D
Xbox 360 Cam
10x50 Binoculars
15x70 Binoculars
Celestron C70 Mini Mak
Turn Left At Orion Book
Wire wool for cleaning bird cr@p from the optics.

A motorcycle for fun in the light nights Posted Image

#4
rowan46

rowan46

    White Dwarf

  • Advanced Members
  • 3,960 posts
  • Location: birmingham
just to complicate things further It's true that they may be made by the same chinese firm but they can be made to different spec according to the price point the commissioning firm wish to put out.

#5
mdstuart

mdstuart

    Brown Dwarf

  • Advanced Members
  • 2,676 posts
I think it is fair to say that you get what you pay for so £100 80mm bins will pick up a lot of light compared to a 50mm set but will show some flaring and distortion towards the edge of the FOV but will be very usable on a good solid tripod!

If you pay £250 for an 80mm pair the FOV will show much less distortion.. If you get a FJ paid for £1000+ then you will get perfect star spots accross the whole FOV..

Mark

Mark..the galaxy hunter!
Darkstar 350mm
25 x 100 bins
Thornbury nr Bristol eye limit mag 5.5
Galaxies count 816


#6
BinocularSky

BinocularSky

    Brown Dwarf

  • Advanced Members
  • 2,393 posts
  • Location: Between the New Forest and Cranborne Chase

You get what you pay for will not be much help.

However, it is true. A half-way decent eyepiece retails in the region of £40-50, a coated 80mm short-focus achromatic lens about £80, prisms retail around a tenner each. A binocular consists of 2 eyepieces, 2 objective lens groups, 4 prisms, two focusing mechanisms, and associated housing/tubing. Now, ask yourself what quality it is reasonable to expect for a 20x80 binocular that retails for less than £85.

It will show you more than you can see with the unaided eye, it will show you more than you can see with a 10x50 or cheap 15x70, but you will not have crisply focused stars, you will have ghosting and flaring, you will have obtrusive aberrations except for the middle 50% of the field of view, and you will need to learn to conditionally align it -- regularly -- because even in the unlikely event that you receive it collimated, the odds are that that it will repeatedly lose collimation because of the way the prisms are mounted.

If you are prepared to live with that, then fine, lots of people choose to do so and profess to be happy with their choice. It is remarkable that a binocular of this size can be made so "affordable", but please don't kid yourself that the quality will be anything to write home about: this binocular is made to a price, not a quality spec, and quality control, by the manufacturer's own admission, is at best minimal (it is, quite simply, cheaper to replace the occasional customer reject than it is to employ QC staff).

Also, please don't assume that all binoculars that look alike are alike. They may differ in (amongst other things) the quality of coatings, the type of eyepiece, the glass used, the way the prisms are mounted and the level of quality control.
Best,
Steve

sigbar.png
The 2nd Edition of my book Binocular Astronomy is available via the image above

#7
Hobbes

Hobbes

    Star Forming

  • Advanced Members
  • 319 posts
  • Location: Guildford
I have a pair of the Revelation 20x80's. They do suffer from significant distortion and flaring on bright objects - Saturn/Venus/Mars are a mess! On the otherhand what you can see of these at 20x is fairly limited.

I find that they are fine for DSO's and binocular doubles. Most of my Messier List has been spotted through these and I still get them out regularly and enjoy the widefield views through them.

As I havn't tried the Helios I cannot comment on them however you generally get what you pay for so If you have the readies available I would go for the higher quality Helios, if funds are short however I have found the Revelations deliver the WOW factor at a very reasonable price and are a good starting point.

You will need to tripod mount both pairs so factor in the cost of a tripod as well and remember that you will need a tall one. Both have a built in Tripod mounting bracket which saves you a £10!

Happy star gazing!

Regards

Rob
Helios 10x50WA Naturesport, Helios Quantum4 25x100 Binoculars + Parrallelogram Mount
Orion Optics VX10 F4.8 + Europa 8" F6 + Tal 100RS + AZ-EQ6 GT Mount + BGO 5, 6, 7, 9. 12.5, 18mm + Baader Hyperion 8-24mm Clickstop Zoom Mk-III + 2.25x Barlow + TV Delos 10mm & 17.3mm + TV Panoptic 27mm + TV 2" 2x Powermate + Meade 5000 30mm UWA

Messier objects seen: 106/110 Planets seen: 8     Member of Guildford Astronomical Society


#8
michael.h.f.wilkinson

michael.h.f.wilkinson

    Hyper Giant

  • Moderators
  • 17,686 posts
  • Location: Groningen, The Netherlands
I changed my 15x70 Omegon (Revelation clone) to a Helios Apollo HD 15x70 some time back. I got the Omegon for just 89 euro, based on the idea that if I did not take to them, I would not make a big loss if I sold them later. I loved them, despite noting some deficiencies. They were certainly very good value for money. I later got an 80mm APO as wide-field instrument, but still found I was using the 15x70 bins a lot. The traveled with me to Oz and South Africa, and showed me the marvels of the southern skies.

I did note more deficiencies as time went by, in particular lack of stable focus, flaring of bright objects, and chromatic aberrations, especially on the moon. Therefore, when I could get a secondhand pair of Helios Apollo HDs I jumped on that. The difference is considerable. With these I can spot the phase of Venus at the moment (the old ones couldn't ever) and it shows the flattened shape of Saturn. Chromatic errors are much smaller, and the image is brighter overall. Focus (using individual focusing) is rock solid.

So, do I regret buying the Omegon? Absolutely not! They gave me a lot of viewing pleasure for a very modest price. Do I think the Helios is better: Absolutely! But the price is a lot higher.

BTW, I would go for 15x70 rather than 20x80, because the former can still be hand held (just), or simply be used in a reclining chair, or rest your arms on e.g. the roof of a parked car. This reduces set-up time, and means you start observing more quickly. At 20x you must have a tripod.

Edited by michael.h.f.wilkinson, 01 May 2012 - 03:14 PM.

Scopes: Celestron GP-C8, APM 80mm F/6 Triplet APO, Lunt LS35THa B1200, SkyWatcher ST80, home-brew Alt-Az mount, 4.5" F/4.3 MiniDOB (for the kids)

EPs: Pentax XW 7mm and XW 10mm, Televue Delos 8mm, Naglers 12 mm,17mm, and 22mm T4, and 31mm T5, Vixen LVW 42mm, 2x MaxVision 24mm 68°, William Optics Zoom 7.5-22.5mm, William Optics 2" Dielectric diagonal, Orion Optics 2" 90° Amici prism Denkmeier filter-switch star diagonal with O-III, H-beta, UHC and moon filter

Imaging stuff: Meade S5K TeleXtender 2x and 3x, TeleVue PowerMate 2.5x, TeleVue TRF-2008 0.8x reducer/flattener, ZW-Optical ASI130MM and ASI120MC, The Imaging Source DMK 21AU618.AS, Brightstar filter wheel, LRGB+IR filter set, modded Canon EOS 450D.

Bins: Helios Apollo 15x70 HD, TS 15x70 (repaired, for kids), Bresser 10x50, home-made P-mount Mk-III

Observation summary: Messier: 110/110, Caldwell: 97/109, RASC Finest NGCs: 93/110, Herschel: 306/400, Brightest Planetaries: 60/100, Planets: Mercury to Neptune (inclusive), Minor planets: 2, Lunar: 55/100, Comets: 12, Supernovas: 9, Novas: 1, Quasars: 3


#9
Hawksmoor

Hawksmoor

    Star Forming

  • Members
  • 218 posts
  • Location: East Anglia UK
Hi Chickenman
If you want Binos for getting to know whats where in the sky, I would recommend lower magnification and wider field of view (as Michael's recommendation). I have a pair of Helios 11x80mm bins which I can just about hand hold for limited periods of time and regularly use on a photographic tripod. As I'm getting on a bit the exit pupil is a bit large and therefore I waste a bit of light, otherwise I'm very pleased with them particularly for brighter DSOs. Hope helpful and welcome to SGL from Suffolk
:)




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users