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Anonymous
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I have finally narrowed the field down for a binocular choice to the following:
Bausch & Lomb Legacy 10x50 Wide Angle (7.5 Degree FOV = 395ft) or Pentax XCF (6.5 Degree FOV = 342ft)
Any thoughs on the better choice for astronomy? How does the image quality compare between the two (clarity, sharpness, distortion, etc)? Is the wider field of view with the Bausch & Lomb really visually available given the small eye relief of 9mm?
The Baush & Lomb only states multi-coated optics, not FULLY multi-coated optics (as does the pentax I think?). Does this mean that not all lense surfaces are coated? Is this bad?
Given the price bracket of around $100-150 USD and the desire for a nice wide field of view (preferable with 10x mag)... Any other suggestions on a brand/model?
Any help, info, advice, feedback, support, and/or words of wisdom would be most gratefully recieved (I need to put myself out of my own misery and actually buy something!)
Many Thanks, Frilby
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KennyJ
   
Reged: 04/27/03
Posts: 10146
Loc: Lancashire UK
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I tried the Pentax XCFs in 10x and 15x about a year ago when I first became aware of them.
I did not like the small eyecups and found the view quite awkward as a result.
The XCFs were available for VERY little on e -bay ( around $85 US ) and I'm almost certain they are "Chinese" made.
As a result they do not share the same high quality build as other Pentax models and in spite of the narrower TFOV I would recommend the 10 x 50 PCF WPs instead .
I have not seen the B & Ls so cannot comment.
Living in the UK there are different alternatives in that price range to what is available in the US.
Hoping you get more advice from others.
Clear skies --Kenny.
-------------------- If everyone is thinking the same thing , no-one is thinking - General George S.Patton
Zeiss 7 x 42 BGAT
Captain's Helmsman 7 x 50
Nikon 10 x 42 Superior E
Swift Audubon Kestrel 10 x 50
Helios 15 x 70 Observation
Strathspey 20 x 90
Televue 76 APO
Zeiss 85 Diascope
Helios 102 f5 refractor
Various eyepieces barlows tripods mounts etc.
Panasonic Lumix DMC - TZ5 digital camera
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Anonymous
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Hey Frilby...1st ?...do u hafta wear specs when ya view?...and 2d, what is yr absolute top dollar to spend on a 10x glass...after yr reply can give u some good choices based on long experience with lotsa binos....yrs for an answer Doug
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Anonymous
Unregistered
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Doug,
Many thanks for your help!
Firstly, no glasses necessary so the eye relief should not really be an issue.
Second, I'm in a fairly light polluted metro area so this is where the binos will be getting their most frequent use (hence the 10x choice with around a 5mm exit pupil - unless you recommend otherwise). I will also still be travelling a couple of times a month to a fairly good "dark site".
I am new to astronomy and have only recently purchased an 8" newtonian, so the binoculars are for easier sky gazing, and for helping to find and learn constellations and locate objects in the sky (to then point my scope towards). So, basically something for good quality, all round general use (with a preference towards a wide field of view).
Top dollar is about $150(USD). I'm in Australia, so this would equate to about $300 (Australian) by the time it gets here which is my preferred limit (but if you can convince me otherwise, I'm happy to go a bit higher - although my wife may disagree ).
I'm afraid I have been bitten by the "perfection" bug at some stage early in my life, and as such I am trying (as we all do) to get the best quality for the money.
Water proof binos are not necessary, but I have read that they do not fog up which could be a bonus (do non-water-proof units generally have fogging problems on dewy nights?).
Anyway... hope all this info helps and I'd be happy to elaborate any more if necessary!
Once again, I greatly apprecaite all the help, advice and opinions of this forum as there are many of you who have had far more experience that I...
Many Thanks,
Frilby
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KennyJ
   
Reged: 04/27/03
Posts: 10146
Loc: Lancashire UK
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Hi again Frilby,
Now I have a more clear understanding of your intended use for this particular pair of binos I agree that a wide field of view is important.
Bear in mind that most if not all , even the very expensive wide field binos will have quite poor edge performance for astronomy.
It being more difficult to design and produce a HIGHER POWER bino with a wide field of view and reasonable "flatness" preferable for astronomy , and given that you are likely wanting to hand -hold these binos for sweeping the skies , I think it is well worth considering a lower power of around 8x for this purpose.
If you accept this as a possibility it may well have the added bonus of widening your scope of choice in your price range.
8 x 40s and 8 x 42s are very commonplace and possible all you really need for this use.
Just another idea to confuse you even further :-)
clea skies -- Kenny.
-------------------- If everyone is thinking the same thing , no-one is thinking - General George S.Patton
Zeiss 7 x 42 BGAT
Captain's Helmsman 7 x 50
Nikon 10 x 42 Superior E
Swift Audubon Kestrel 10 x 50
Helios 15 x 70 Observation
Strathspey 20 x 90
Televue 76 APO
Zeiss 85 Diascope
Helios 102 f5 refractor
Various eyepieces barlows tripods mounts etc.
Panasonic Lumix DMC - TZ5 digital camera
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Anonymous
Unregistered
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Ok....the B&L Legacy in either the 8x40 or 10x50 incarnation is pretty decent for the $..both have nice wide fields...a noticable amt of field curvature and some edge softness, but not a real drawback, especially considering the 8x can be had for $90-100 and the big one for $100-120 quite easily. The eye relief is one of the big drawbacks to both, but if u have 20-20, no sweat. The armoring is nice on both and they seem fairly stout. I got one (10x)for a friend on ebay from Jack's Camera in Ohio for $119 and he's really satisfied. The Celestron 8x40 Ultima is another fine performer...I've seen it for about $140 at Christopher's Ltd web site...optically a little better than the B&L, great eye relief but only a 6.6*fov. Once you use a WA bino for a while, you dont wanna go back to a "standard" field glass, i.e., one with less than about 55* afov (seems like yr lookin' thru a keyhole vs a picture window).The Swift Ultralites (in 7,8 &10x configurations) are virtual clones of the Celestron Ultima with the same virtues and fov drawbacks, altho they're about $70-80 more expensive. Pentax turns out some fine glasses also, but they have even narrower fields, so really can't recommend those. I'm only mentioning porro units here, due to 1)they are better performers for the $ spent than comparable roofs and 2)nearly every roof glass I ever owned or tried out had diffraction spikes when viewing bright objects, like Mars or Vega...inherent in the design with an out of phase reflection (even phase coating doesnt fix it). The only exception to this is the Canon 15x50 IS...that shows none, but it is pricey. I assume astronomy will be yr primary use here, ergo my preferences. Now if u can go up to the $250 range, there are some stellar performers available (sorry for the pun...couldn't help it). These wd be the big Swift Audobons (8.5x44 and 10x50) and the new B&L Discoverers (8x42 and 10x42). All offer very wide afov (around 70*), have premium coatings and glass, armoring and fine handling. Well, let me back up....all have those virtues except the Swift 10x50...it still has the conventional pebble-grain vinyl-covered body with rubber obj rings, along with roll down eyecups (vs popups on the other 3). But never mind that...IMHO it is the most underrated glass on the market. It has the "easiest" view of any bino I've ever used (just put it in front of the eyeballs and the whole expansive vista is there, no strain). It's a very nice glass to handle if u have even moderately sized hands, focuses very smoothly, gives clarity and resolution and brightness second to none. Did a side by side with a Nikon 10x42 Superior E, generally considered to be the benchmark for 10x units...The Audobon more than held its own. Was slightly brighter, noticably wider fov (7* vs 6* for the SE), just as good a resolution...drawbacks include a little more edge curvature and a slightly "warm cast" to the view...by that I mean a very subtle yellow tone (as this is primarily a birding glass, may hv been intentional, as that can enhance brightness and contrast on overcast days, showing more detail). But you don't notice this unless you do a direct comparison with a totally color-neutral unit, which the Nikon is. The Superior is also built like a vault, but at the price point differences ($225 vs $800) the Swift is very fine indeed. I got one about 2yrs ago on ebay for $160...was new but had a slight flaw in the covering. Swift sells units like that to an ol' boy in Rhode Island who in turn puts them on the web at very good prices (with full warranty). The other Swift and the new B&L's I mentioned will offer comparable performance, but you probably won't find them at comparable savings. Hope my several cents worth here was helpful....Doug
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Anonymous
Unregistered
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Hi there,
I have another suggestion for low power binoculars. I recently purchased a pair of Nikon Action 7X35 (Aka Naturalist IV) after reading several good reviews in birding websites (I do a lot of birding) and I’m gladly surprised at their quality and great performance for stargazing as well for daytime use. These Nikons are regarded as a real bargain for birding (You can find them anywhere between $144 and $84 –Adorama offers the best deal- with a $20 mail-in rebate) due to their bright image, super wide (9+ degrees) field, smooth focus and optical quality. I should mention that the 7X35 was the only one recommended in Nikon’s “Action” category.
Cheers
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Anonymous
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Many thanks Doug & Kenny...
I've heard a few good things about the Swift binos...
I've also heard a couple of good references to the Carton Adlerblick 10x50's... any feedback on these anyone?
Thanks,
Frilby
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