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What our customers say about pdfFiller
See for yourself by reading reviews on the most popular resources:
I am a first time user. I've experienced some difficulty but the Support Team is right on it and I expect it to be resolved soon.
Your support is outstanding!
2018-08-29
desde un inicio debería estar la indicación de que la aplicación es de pago para contemplarlo, en cuanto el funcionamiento es excelente, solo tengo duda acerca de la leyenda de que solo 5 documentos... al día al mes o a que se refieren? agradezco de antemano su atención.
2019-07-17
A feature that is critical to my business broke on Friday. I was able to interface and get updates about the fix over the entire weekend and had the problem solved by the dev team before Monday morning. Awesome teamwork from the folks at PDFiller from end to end. Highly recommend.
2023-10-30
Make your life easier and less stressful - fill out word docs/PDFs without stressing out about scanning or printing.
pdfFiller is an incredible alternative to the usual expectation of printing out pdf documents, signing them by hand, and scanning them back into the computer for an email. It allows me to be able to quickly fill out word docs or pdf docs without the extra stress of typing between the lines and the remote signature option is the best part. It's a great option and I really appreciate being able to use it.
2022-11-23
Smooth fillable process
Smooth fillable process. It's just the end of the process, saving the document and accessing it that I still need to get used to. I don't feel too comfortable as I feel like my documents are not easily accessible if I forget my password. I guess it's a matter of getting used to. Also is there a charge sometime in the future for this?
2022-08-24
The number of hours that I was browsing…
The number of hours that I was browsing the site and the features I am more than satisfied and would recommend anyone who wants to have a higher PDF filler easy to use and a professional look is plus.
2022-08-11
Your representative promptly returned…
Your representative promptly returned my message,and promptly accepted my request for a question I had that was very important to me. I am very appreciative of their service.
2021-12-05
Pdf filler is a company with a ton of integrity and cares about its clients
Pdf filler is a really great company that has great morals. I signed up for the free trial and forgot to cancel before it auto renewed for 1 year. With Covid impacting my commission based business, spending 120 dollars for pdf software is not something I can afford at this time. The customer service rep Rachel not only refunded my purchase, but did it very quickly and professionally. Obviously I forgot to cancel and this company could of held my feet to the fire as it was my fault that I did not cancel the auto renewal that I agreed to and left my Google pay account for. However they did not do that. I will absolutely 💯 use pdf filler again in the future if the need should arise and would recommend it to anyone that needs to edit a pdf file in the future!
2020-11-12
I had an issue with accessing a form shared by a colleague. I wrote to the PDFfiller support team and received their response very swiftly. The instructions received via email were very clear and easy to follow. I was able to fix the issue within a very short time. I'm really impressed by the efficiency and quality of customer support.
2020-11-02
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What limits the resolution of a microscope?
The resolution of the light microscope cannot be smaller than the half of the wavelength of the visible light, which is 0.4-0.7 µm. When we can see green light (0.5 Am), the objects which are, at most, about 0.2 Am. Below this point, light microscope is not useful, as wavelength smaller than 400 nm is needed.
What is meant by the limit of resolution of a microscope?
The limit of resolution (or resolving power) is a measure of the ability of the objective lens to separate in the image adjacent details that are present in the object. It is the distance between two points in the object that are just resolved in the image. Thus, an optical system cannot form a perfect image of a point.
What is resolution of a microscope?
In microscopy, the term 'resolution' is used to describe the ability of a microscope to distinguish detail. In other words, this is the minimum distance at which two distinct points of a specimen can still be seen — either by the observer or the microscope camera — as separate entities.
How can you increase the resolution of your microscope?
The resolution of a specimen viewed through a microscope can be increased by changing the objective lens. The objective lenses are the lenses that protrude downward over the specimen. Grasp the nose piece. The nose piece is the platform on the microscope to which the three or four objective lenses are attached.
Which light gives the best resolution in a microscope?
The greatest resolving power in optical microscopy is realized with near-ultraviolet light, the shortest effective imaging wavelength. Near-ultraviolet light is followed by blue, then green, and finally red light in the ability to resolve specimen detail.
What factors affect resolution of a microscope?
The primary factor in determining resolution is the objective numerical aperture, but resolution is also dependent upon the type of specimen, coherence of illumination, degree of aberration correction, and other factors such as contrast-enhancing methodology either in the optical system of the microscope or in the
What determines the resolution of a microscope?
The resolution of an optical microscope is defined as the shortest distance between two points on a specimen that can still be distinguished by the observer or camera system as separate entities.
What does resolution depend on?
The limit of resolution (or resolving power) is a measure of the ability of the objective lens to separate in the image adjacent details that are present in the object. The wavelength of light is an important factor in the resolution of a microscope. Shorter wavelengths yield higher resolution.
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