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I have often been asked what kind of microscope is good for art examination. Briefly, you need a trinocular polarizing microscope with epillumination (from the top) and transmitted illumination (light from the bottom). I used to work in Brooklyn with the glorious polarizing microscope Nikon OPTIPHOT 66. Moving back home in Italy I needed to buy an affordable microscope. I had no time to look for a used good microscope. So, I eventually turned to eBay and bought a budget microscope. It was so cheap and I was really thinking I were making a mistake, wasting my money, just getting a toy. This blog is about my positive surprise — I want share with you — for eventually getting a reasonable good microscope, good value for my money. Bottom line is that this kind of affordable microscope don’t make up for a quality one. I’m still on the look for another OPTIPHOT 66 but they can turn useful enough. This system I bought cost less than 00 with all the needed accessories. A quality microscope even used with all the features said above would go for over 00. so, i thought it was worth a try.
So, for 00 I got a Polarizing Microscope with Epi and Transmitted illumination (you need both, respectively for looking at cross-section and slide mounts). The Koehler illuminator for transmitted light feels really basic but it does its job The rotating stage it’s not very easy to center — pretty rough movements — but after a while I managed to have it centered. It has a set of objectives SEMI PLAN 4x, 10x, 40x. Eye pieces are both 10x and 15x so you get a total magnification which is enough for the kind of tests you do on pigments. It is all metal construction, though a bit rough overall. For polarizing microscopy it has a rotating analyzer for both epi and transmitted light, and Gypsum & Mica Plates.It makes it easy to get pictures with its trinocular Camera Port with 100% Light transfer and the 3 Mega Pixel USB Camera. Camera comes with its software but I prefer to use MICAM for all my imaging devices. For 00 this microscope really comes with everything you need for art examination!
Well, let’s see some pictures! First it’s necessary to calibrate the system with a Stage Micrometer Calibration Slide.
Why Consider Buying A Used Microscope
While a brand new microscope will almost always be the best quality, they can often be prohibitively expensive, especially for the hobbyist user. Used microscopes can often offer an incredible value for money if you are willing to do some research and make sure that you are not buying a microscope that is broken or otherwise has limited functionality.
The Value of Purchasing Used Microscopes
Because microscopes lose a lot of value the moment they are unpacked, a lightly used microscope can be an excellent value proposition. A very high end microscope can go for half the price used, allowing an amateur user who wants more power to get a product normally far outside of their price range.
Before buying a new microscope, then, it’s a great idea to shop around the used microscopes market and see if you can either save some money or upgrade to a higher quality product on the same budget.
One great way to save money for the serious enthusiast is to buy a broken microscope and the parts to repair it. This can end up saving hundreds of dollars if you are up to the challenge. Fixing a microscope is not always easy, but for a serious enthusiast, it can be a fun project that ends up resulting in a much higher quality microscope than could have been purchased for the price of the broken product and parts.
However, it is important to be careful when selecting a used microscope, broken or not. Some microscope parts are difficult to find, meaning a broken microscope can turn into a hunt for the right piece. Others will be overpriced for how much work they require.
Overall, buying a used microscope, when approached cautiously, is a great way to save money on a quality product. If you are in the market for a microscope, it is definitely something to look into.
Understanding Online Identity Theft
When somebody steals your identity online they use your personal information to pretend to be you or assume your identity when transacting so that they can gain access into your resources, obtain credit under your name, or other services. If you are a victim of online identity theft you can lose all the resources that you have worked so hard for and you may also suffer the consequences of the actions done by the cybercriminal who stole your identity.
How do cyber thieves obtain your personal information?
Here are the most common ways that are used by cyber thieves when they want to gather personal or confidential information for online identity theft:
- Some steal your personal information using malicious software or breaches in your browser security
- Large scale online identity theft happens when someone manages to hack into computer networks and company database. This allows the hacker to acquire the personal information of clients, use it to steal their identity or sell the personal information for a profit.
- Email phishing or sending emails or links which masks them as legitimate companies that will ask you to enter confidential information such as your credit card or social security number.
- Getting personal information from published posts in social media sites.
- Gaining access to victim’s emails and diverting the incoming emails to gain access into your personal and financial information. This is also done to divert bank or credit card statements of accounts that you are not aware of and delay your discovery of the unauthorized activity.
- Gaining your trust and befriending you or somebody in your family through social media sites to trick you into giving out your personal and financial information.
How can you protect yourself now from online identity theft?
The ease at which people can now have access to the internet is increasing the chances of criminals to gain access to personal information to steal their identities. But there are ways for you to protect yourself from online identity theft. You should always be wary of sites that ask for personal information especially for your credit card and social security numbers. When purchasing online make sure that you only transact with legitimate sites to ensure the security of the information you provide. Monitor your bills, bank statements, and credit score for anything unusual. These things will surely give you a clue that somebody is possibly posing as you.
When using public internet connection from a laptop, tablet, or smartphone, it is a good idea to secure your connection with a VPN. A VPN is a virtual private network. It will protect the data you are transmitting through your WiFi connection.
Identity theft is a serious matter and you may lose all the things that you have worked for as well as the integrity of your name so ensure that you and members of your family are being smart when using online services and social media sites.