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Natural Science Forum / Physics / Optics / August 2007Wild Stereoscope Models
I am interested in buying a Wild stereoscope of the M5/M7/M8 series. Could someone discuss the different versions of these lines of scopes? I recently saw a listing for a pair of Wild M7A and Wild M7S stereoscopes...what are the differences between these scopes? Are there more variations of this particular scope? Also are there similar variations of the M5 and M8 scopes? Finally is there a web page that discusses the stereoscopes that Wild has produced over the years? Thanks TMT > I am interested in buying a Wild stereoscope of the M5/M7/M8 series. > [quoted text clipped - 13 lines] > > TMT I don't know how much good this will do but what the heck. The M7 and M8 have much wider zoom ranges along with Galilean construction. They are kinda finicky to work on, you have to get the tension between the zoom parts and the rotary parts right on the M7. The M8 was an upgrade so the mag could be adjusted of the the side which is what you need in semi-conductor production. If you need reflected light only or you can add transmitted light later try these guys (www.capovani.com/dp/cat/107/63160/ilist.cfm?LCl=342&menuid=m_2_2_1). Whats really amazing is the number of additions you can make to Wild (Leica) stereos. Every thing you ever wanted and probably more. Thats one of the real advantages of a Wild. Thanks, Kevin Cunningham SMS > > I am interested in buying a Wild stereoscope of the M5/M7/M8 series. > [quoted text clipped - 35 lines] > > - Show quoted text - Thanks for the response Kevin...it is appreciated. The large number of accessories is one of the reasons why I plan on buying a Wild. TMT If the large number of accessories available is one of the principal motivators to buying the Wild scope, then I would strongly recommend shying away from the M5 and M7 and "focus" on the M8. The reason is that the M5 (and M5A) along with the M7 have a wider distance in the optical path (the distance between the parallel beam paths) than the current incarnations of Leica stereomicroscopes. Leica's been really good about remaining consistent with their accessories since the discontinuation of the M3/M8 series. Every single current accessory (with the exception of the objectives) will work with the M8, or the M3, whereas with the M5 and M7, you're restricted to discontinued accessories which are much more limited. I would recommend an M3, M8, or even a more current MS or MZ series stereomicroscope. This would allow you to take advantage of the full line of accessories both now and in the future. Victor Casas Mikron Instruments > If the large number of accessories available is one of the principal > motivators to buying the Wild scope, then I would strongly recommend [quoted text clipped - 15 lines] > Victor Casas > Mikron Instruments Excellent point..thanks for raising it. I did not know that the M7 shared the M5's wider distance. One of the reasons why I am focusing on the availability of accessories is in the past I have had systems worth many dollars whose useful was seriously diminished because of the inability to purchase a critical accessory. Support is paramount after the initial sale. I am trying to stay with the Wild models because of their reputation of being "better" than the newer Leica models...true? TMT > > If the large number of accessories available is one of the principal > > motivators to buying the Wild scope, then I would strongly recommend [quoted text clipped - 31 lines] > > TMT Over the years production of what used to be Wild was moved to Singapore and no changes were made. The Singaporeans were trained by the Swiss and Germans, they make darn good stuff. There isn't really a difference. The name change was made and only the the product managers gave a darn. Its not the first time. E. Leitz used to have plants in Canada and Portugal. Thanks, Kevin Cunningham SMS > > > If the large number of accessories available is one of the principal > > > motivators to buying the Wild scope, then I would strongly recommend [quoted text clipped - 47 lines] > > - Show quoted text - Hmmm...so you are saying that the Wild labeled scopes are the same as the Leica labeled ones? TMT > > > > If the large number of accessories available is one of the principal > > > > motivators to buying the Wild scope, then I would strongly recommend [quoted text clipped - 52 lines] > > TMT Yep, change over from Wild to E. Leitz and Leica happened one day, no change in production planning or techniques. Thanks, Kevin Cunningham SMS >I am interested in buying a Wild stereoscope of the M5/M7/M8 series. > [quoted text clipped - 13 lines] > >TMT The M7 has the exact same spacing as the M3 and M8. The M7S is essentially the same as the M7A except that the objective lens group is movable on the M7S. This allows the observer to use the scope in either : 1) The standard configuration (left amd right optical path displaced from the centerline of the objective group). 2) Left optical path only (centerline of left optical path coincident with centerline of objective lens group). This allows for a parallax free view amd allows epi-illumination into deep holes. There are other differences between the M3, M7 and M8: 1) The cam/ramp mechanism is different on all three scopes - this is only of interest to a Tech. 2) The M8 objective is a Plan. This might be of interest to you if a very flat field is required. 3) The M3 also came in a M3C variation with fixed lenses and only one moving part. Magnification is in discreet steps. This may interest you if you need a scope that can take a little rougher handling. The M5 does indeed have a wider spacing of the optical paths. On Aug 24, 12:16 am, blackie85...@msn.com wrote: > On Sat, 18 Aug 2007 11:26:56 -0700, Too_Many_Tools > [quoted text clipped - 39 lines] > > - Show quoted text - Thanks for the info...it is appreciated. Any idea why the spacing on the optical paths were changed from the M5 (wider) to the M3/7/8 (narrower) series? TMT On Aug 24, 12:16 am, blackie85...@msn.com wrote: > On Sat, 18 Aug 2007 11:26:56 -0700, Too_Many_Tools > [quoted text clipped - 39 lines] > > - Show quoted text - Another question....do the same accessories like optional lenses fit the M3/7/8 scopes? I am assuming that the M5 accessories are unique to only that scope...true? Thanks TMT > On Aug 24, 12:16 am, blackie85...@msn.com wrote: > [quoted text clipped - 53 lines] > > - Show quoted text - The M8 has a unique objective, the others are interchangeable. > > On Aug 24, 12:16 am, blackie85...@msn.com wrote: > [quoted text clipped - 57 lines] > > - Show quoted text - Thanks Victor...so the M8 uses its own specialized accessory optics while the M7 and M5 can use the same accessory optics which are not usable on the M8? The reason why I ask is that I thought some ot the M8 accessories (phototube) would work on the M7 and not on the M5. TMT >> > On Aug 24, 12:16 am, blackie85...@msn.com wrote: >> [quoted text clipped - 66 lines] > >TMT TMT, The Wild M8 can use all ot the intermediate tube accessories that are used on the M3 and M7 series. You expressed interest in a phototube; that would work just fine. The only intermediate accessory that would be prroblematic would be the vertical illuminator. The illuminator has polarizers in the optical path and requires a 1/4 wave plate to change linear polarized light to circular polarized light. The wave plate holder attaches to the objective lens on the M3 and M7. It will not attach to the M8 as the outside diameter is larger. None of the accessories that mount on the end of the objective will work on the M8. That being said, I can only think of one other accessory that attaches to the lens (a small mirror for vertical illumination) other than the aux. objective lenses (this is another consideration). What about some of the Motic parts that are supposed to fit the Wild's. Jay What about some of the Motic parts that are supposed to fit the Wild's. Jay |
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