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/ Just got 10x50mm Orion Vista's
Just got 10x50mm Orion Vista's
May 30, 2008 8:33 PM
I'd never used binoculars much... never really had a desire to until recently. I did own a cheapie pair of 8x42's briefly (a few days) until they took a tumble and broke. I was never really pleased with them much anyway and when salvaging the optics I found that the optics in the EPs were plastic so that might explain a few things.
I did some reading and decided on the 10x50mm Vista's since they were in the price range I wanted and they were recommended in an article by Terence Dickinson, also by the numbers they seemed like what I was looking for. I couldn't find much info on these at all so I thought I'd share what I find in case others are interested. This isn't a formal review since I don't have enough knowledge and I already stated my experience with binoculars.
I'll get back soon with first impressions.
May 30, 2008 8:49 PM
After i became a "binocular astronomer"...My scope was soon sold.
Be careful, Be very careful they will be VERY VERY addictive.
Try not to forget your scope!
God Bless America Binocular astronomy for me ONLY. 8x45 Garretts 15x70 Skymasters 2 eyes!
May 31, 2008 2:17 AM
Looking forward to that report. I'm considering between the Nikon EX and Orion's.
AT 72ED f/6 doublet
TMB 92L f/5.5 triplet
Orion 120ST f/5 achro
June 18, 2008 12:40 AM
I have come to a couple revelations concerning these binoculars. Initially I was a little disappointed with them due to the optics but then realized that asking for perfection at this price point is unreasonable, furthermore if they were perfect then it would be pointless for any more expensive binoculars to exist which clearly isnâ€™t the case. Secondly I found using binoculars takes a little skill. My first few sessions with them I found that I had trouble holding a star still enough to even focus properly let alone make any critical observations and my arms got tired quickly which made the vibration worse. Iâ€™m getting better but still only get 5 minutes or so of solid viewsâ€¦ miles to go.
I thought Iâ€™d share what Iâ€™ve found so far but please remember that I have NO experience with any other (reasonable) binoculars to compare these to and Iâ€™m not an optics expert so I may throw around optics terms willy nilly.
At first thought I wasn't overly excited about getting a pair of binoculars that resemble the old clunky type with all the slick rubberized ones out these days but I have to admit that these look pretty sleek in person. The leather like covering is classy looking and is quite nice to hold. The weight seems nice if a little on the light side though they are about half the weight of the cost-wise similar Resolux, I suppose thatâ€™s a good thing? The mechanics of the body seem well built. There is no flex that I can detect and the motions are buttery smooth. Focusing is very nice with the knurled rubber focuser, it grips a finger tip nicely for easy motion and no detectable backlash. My only beef is that the two arms that come from the focuser to move the eyepieces can be deflected with only moderate force of a finger. It doesn't appear to misalign the EPs but does change their focus position. The coatings on the glass are a nice dark green and appear to have no irregularities. I should also mention that collimation is bang on. The ER to me seemed perfect. I had to lightly touch the eyecups (which fold down) to my face which I like but Iâ€™m not sure there would be enough if you needed to wear glasses to view. I found no tendency for the view to blackout.
When I first used them during the day I was shocked at how good the view was compared to that cheap pair I had. Everything seemed crisp and sharp, the edge of the field stop was sharp and every thing from there on out was pitch black so stray light seems to be under control. Looking at the neighbour's houses and some distant trees I could see that there was a little bit of pincushion distortion but I didn't find it was bad or distracting. The edges of the view were not very sharp and working from outside of focus through to inside and back I determined it was astigmatism. Again I didn't find it distracting but it was there. I had really hoped by getting binoculars with 53Â° FOV EPs would avoid some optical nasties compared to what seems to be a standard of 65Â° EPs in most models. When working through focus I found that best focus at the center of the FOV was also the best focus position for the edge of the field of view though the outer edges werenâ€™t well focused due to the astigmatism but it does show the there is no field curvature. The only time I saw any CA was when looking at the silhouette of a bird against the very bright yellow background of a cloudy sky direct lit by the sun. The CA showed itself as a violet ghost to one side and a aqua-green to the other side, with the violet being on the side closest to the center of the FOV. Other than that CA wasnâ€™t an issue and was rarely detected.
I havenâ€™t been able to do too much evaluation under the stars with a bad stretch of weather weâ€™ve had and the moon being past half in my suburbian skies. Details on the moon were crisp and had great contrast in the center of the FOV. The CA showed up as a thin violet ring on one side and the aqua-green on the other but didnâ€™t detract from the quality of the view. The back ground was black except for the little bit of haze due to the atmosphere and everything past the field stop was black. I did notice that when looking at the moon that depending where it was in the field of view that I could see odd glares and ghosts but I found that this was due to reflections off of my eye and may not affect everyone. Moving the moon just out of the field of view made the whole view go dark, there were no indications of glares or ghosts.
Hopefully we will have some nice weather when the moon is closer to new so I can look for some DSOs and see what I can see. Iâ€™ll check back in when I have some more to report. TBH Iâ€™m growing increasingly more satisfied with these binoculars the more I use them. Yes they are not perfect but all the optical errors I find are not distracting if I donâ€™t go looking for them while enjoying the view. Though I may spring for a higher end pair at some point since I find myself getting hooked on binoculars, I think these will keep me happy for a long while.
June 18, 2008 2:02 AM
Welcome. Very nice review.
I have what is often said to be the same Japanese bino, the "old style" Celestron Ultima 10x50. My experience agrees with everything you said. The centerfield view that it delivers is hard to beat, and that is the one thing a bino has to get right or all is lost, in my opinion. Everything else is gravy, but with this bino there is no gravy! But that prime function should keep you entertained for a while. At this price point, you did well to buy quality in a modest old fashioned bino, rather than the features of waterproofing, wide field, roof prisms, etc.
Although the light weight construction may seem fragile, it is well made. Mine has been relegated to under the seat of my Jeep, (in its case). I go into some rough places, and it has taken a royal slamming for years with nary a problem. It is desperately grabbed when a bobcat or something like that walks out.
10x is a lot of juice to handhold, and the shakes are more annoying when looking at stars than terrestial objects. There are good observers here who take pride in seeing as much as they can standing flatfooted and swaying in the breeze, but that's not my style. I bet if you can figure out some way to get comfortable and prop your elbows, maybe lean back in a lawn chair (build up the armrests if necessary) you'll enjoy stargazing more.
/ Just got 10x50mm Orion Vista's
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