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Natural Science Forum / Physics / Optics / April 2005How is this biolam microscope??
http://www.usedmicroscopes.co.uk/budget%207%20big.html Thanks > http://www.usedmicroscopes.co.uk/budget%207%20big.html > > Thanks Makes little things look big. Second rate microscope. Kevin Cunningham SMS > >Makes little things look big. Second rate microscope. Excuse me, Kevin, I have not understood your answer. However, which is a good mark for used microscope? Leitz? Thanks > > >Makes little things look big. Second rate microscope. > [quoted text clipped - 3 lines] > > Leitz? and this olypmpus? Its price is very good for me! http://www.microscopesfromnightingale.com/page/MFN/PROD/02a/arc_ol_cha_462009 Please, help me to buy a used microscope. Thanks >> > >Makes little things look big. Second rate microscope. >> [quoted text clipped - 10 lines] > >Thanks Would you consider a Novex microscope http://www.euromex.nl/uk/serie.asp?c=1&t=1&s=14 I have their KB model, that works fine for a weekend biologist. Matti R. >>> > >Makes little things look big. Second rate microscope. >>> [quoted text clipped - 18 lines] > > Matti R. Matti, It's yet another Chinese copy. If you buy about 200 of these microscopes they'll name it after you. Since it works and makes you happy it's a good microscope. If someone wanted to buy one I would discourage them. Kevin Cunningham SMS >"Matti Rantanen" <mkrantanen@pp.inet.fi> wrote in message >> Would you consider a Novex microscope >> [quoted text clipped - 11 lines] >Kevin Cunningham >SMS Yes, it is, I knew it before ordering. There is a slight threshold to smoothen when it arrives: It was dirty inside the optics in the head unit! Optical train had to be centered, and its lamp holder and reflector needed some final assembly work. Yet it reveals me a world otherwise unseen. And this world have less contrast, though, than the real brand name objectives would. A blue filter, I keep it permanently in place for resolution. Matti R. >> > >Makes little things look big. Second rate microscope. >> [quoted text clipped - 10 lines] > > Thanks These are pretty good. Nightingale is supposed to be good. I would say it is a good combo and if you are looking for a safe deal, my opinion is you should go for it. > http://www.usedmicroscopes.co.uk/budget%207%20big.html > > Thanks I have read Kevin's reply and can only agree to it. Do not ask if you do not accept that most cheap microscopes are garbage and not worth the money spent for the postage. If you want to go for a good microscope, then do not buy a Chinese microscope - whatever name it might have. Go for an older and used Zeiss, Leitz, Reichert and depending on the age and condition maybe also Nikon and Olympus (I have got some reservations about the latter two). But if you buy a second hand Leitz, you won't be disappointed. A similar I would give you if you tell me you consider an AO microscope - the older ones, those which have been made in the USA, are not too bad (for what you pay) but the more modern ones have been made in China etc and most of them are garbage as well. Thats my honest opinion - sorry if you don't like it. Regards George Nyman A lot of these poorly done scopes are manufactured outside of China as well (e.g. India). And the Nikon E200 is completely manufactured in China and hence could be called a "Chinese microscope". I think we should distinguish between poorly manufactured microscopes, which are mostly assembled by the lowest bidder, and quality instruments. I am sure that we (US or Switzerland) could also produce enough junk these days if we ensured that our salaries get reduced by a factor ten and introduced very poor manufacturing conditions. The sad story is that we keep the production of low quality products going and it's not so much a "Chinese" problem. Maybe we should call these scopes "profit greedy scopes" rather than "Chinese scopes". No? BTW, what reservation do you have with Nikon and Olympus scopes. Since 1980, these scopes are of excellent quality. How old a scope are you talking about? Gregor >> http://www.usedmicroscopes.co.uk/budget%207%20big.html >> [quoted text clipped - 13 lines] > Thats my honest opinion - sorry if you don't like it. > Regards George Nyman Gregor, yes sure, India is for me on the same level as China regarding quality. It is not the salary, it is the understanding of quality which is so much different. I was part of a team which was transferring production of optical components from Europe to China and believe me, the biggest problem was to make people understand what the quality was we wanted to get and achieve. They let parts pass which were just unacceptable regarding manufacturing tolerances and overal performance. Not that they do not want, they need to be trained to get to a different level of acceptance for quality. And I do not exclude the USA of course. I have seen many optics manufacturing locations and some are excellent and some are absolutely dreadful, producing garbage. In the USA, I found often the believe that the quality needs to be just as good as the customer accepts the parts, not better as this would reduce the profit. In Switzerland (and Germany and Austria), usually parts are manufactured such that their quality is as high as possible for a given cost target. And in optics, the results are that with one of those "profit greedy scopes", as you called them, you can see things magnified but if you want to get a proper image, you need to use a really good scope. Now what do I have against Nikon and Olympus scopes - nothing in general, just that their low end scopes are not as good as a low end Leitz microscope. If you talk about the Olympus (new) Vanox, it is an excellent equipment, same for the Nikon Optiphot. And regarding the US manufactured scopes - I have not seen one single US microscope which has been really first class. Maybe my level of expectation is too high, but I am used to an optics performance of a Zeiss Axiomat or a Reichert Polyvar - if I am asked what real quality and performance would be. Regards George Nyman > A lot of these poorly done scopes are manufactured outside of China as well > (e.g. India). And the Nikon E200 is completely manufactured in China and [quoted text clipped - 32 lines] >>Thats my honest opinion - sorry if you don't like it. >>Regards George Nyman > BTW, what reservation do you have with Nikon and Olympus scopes. Since 1980, > these scopes are of excellent quality. Probably driven by the semiconductor industry. I spent some time working in fabs in both silicon valley and Tokyo. All the microscopes were Nikon or Olympus and all were good quality and comfortable to my untrained eyes. This was early 1980's. >> http://www.usedmicroscopes.co.uk/budget%207%20big.html >> [quoted text clipped - 12 lines] > made in China etc and most of them are garbage as well. > Thats my honest opinion - sorry if you don't like it. What do you think of a used Wild M11 for a student/beginner? >>> http://www.usedmicroscopes.co.uk/budget%207%20big.html >>> [quoted text clipped - 16 lines] > What do you think of a used Wild M11 for a > student/beginner? Wild in general is a very good manufacturer of equipment. I do not know from personal experience the M11 but Wild in general is excellent. I base my knowledge on their Macroscopes and some other equipment. Rgds George Nyman Do some Wild scopes not have a "plastic gear problem" under their stage? If I remember correctly, people buying Wild M20 scopes on eBay are rather busy trying to fix this problem. Regarding the Wild M20, there is a nicely written article by Paul James (published in Micscape Magazine) at http://www.microscopy-uk.org.uk/mag/artmar05/pjdealing.html. Gregor >>>> http://www.usedmicroscopes.co.uk/budget%207%20big.html >>>> [quoted text clipped - 20 lines] > my knowledge on their Macroscopes and some other equipment. > Rgds George Nyman >http://www.usedmicroscopes.co.uk/budget%207%20big.html > >Thanks It's a LOMO - Russian made in St Petersburg, formerly Leningrad. They're marketed in Europe as Biolam and in the US as Lomo Multiscope. Very expandable - the one in the ad has the add on Kohler Illuminator, bino head & mechanical stage which would make it quite expensive to buy new. Evidently the lenses are made to prewar Carl Zeiss design (like much in the Russian optics field!). The one in the pic is the later model with the fine focus adjustable via the big plastic wheel in the base. They are not Chinese copies of anything but an original design and a good hobbyist tool. Darkfield, phase contrast, oblique illumination and epi illuminator addon kits are available as well as numerous eyepieces and objectives. Check the Multiscope range on www.lomoamerica.com for much more detail. Odd situation with imports into Europe nowadays - a German firm called Bresser seems to have the concession and they are marketed as Bresser Biolam etc. Do a worldwide search on eBay for 'mikroskop' and that will pull up all the Bressers. www.usedmicroscopes.co.uk is the used equipment department of Brunel Microscopes -very reputable company. |
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