I think you need to know 5 things to buy a film scanner

1. Perfect pixels
Don't be swayed by high scan resolution numbers, unless you're digitizing extremely slow negatives, 3200 dpi is more than enough. Slow film refers to a film that is less sensitive to light and requires more exposure time to achieve the same image as a more sensitive film. In contrast, fast film is highly sensitive film. In order to reduce exposure time, digital or negative photography uses higher sensitivity, often resulting in lower image quality (thicker film grain or higher image noise).

2. Film scanner? Or a platform scanner?
A dedicated negative scanner delivers impressive image quality, while a platform scanner can also scan beyond the negative, providing versatility and scanning convenience.

3. Software functions
If you want the best results possible, good scanning software is necessary, and good software allows you to make various tweaks during each scanning process.

4. Easy to use
While a film scanner that operates independently of a computer is convenient and can be scanned and stored directly on a memory card, don't expect any image quality.

5. Clip to hold the negative
Although the fixed film clip is an accessory, it is very important, good use, will affect your scanning mood and efficiency, as well as scanning results. The clips of cheap scanners are often disappointing, difficult to use, and compromise on the final image quality.

Pathology Slide Scanner will be a good Choice for you ! 

GScan-12
Accurate, Fast, Excellect
Brightfield
Clinic, forzen section, education, telepathology