Easy way to understand difference in Optical v/s Digital Zoom in DG camera

Optical vs. Digital Zoom: Choosing a Digital Camera

Optical zoom lenses actually “move” you closer to the subject of the photograph without sacrificing quality. The higher the optical zoom rating on a camera, the farther away you can be to take a photograph and still get a clear, close-up image. The concept of optical zoom essentially the same as the zoom on a film (non-digital) camera. Optical zoom is the number you want to pay close attention to--it’s the zoom that will give you the quality results you want.

Digital zoom on the other hand is not bringing you closer to the item. Rather, the camera crops the entire image, and then digitally enlarges to the size of the viewfinder the portion you want to zoom in on. This results in a loss of quality, and is no different than cropping and enlarging an image with editing software. The benefit of using image-editing software instead of the digital zoom on a camera is that you can decide how much to crop, and how much to enlarge the image to where the quality is acceptable to you. When you use digital zoom on the camera, the image quality is irreversibly lost.

The camera’s zoom capabilities can make a difference as to how much cropping you will need to do in the editing stage. You may be happy with a lower megapixel rating but higher optical zoom if you compose your photos with the zoom lens first, then print the photos as-is. On the other hand, if you like to crop and edit your photos after the fact, a higher megapixel rating and lower optical zoom capability will still allow you to “zoom” with your editing program and compose a photo that can be printed at the size you desire (keeping in mind the minimum pixel sizes for various sized prints). Your style and comfort level of photography and photo editing will help decide which is more important to you.

In short better to buy optical zoom lenses rather digital lenses..

correct usage of words

Pass out: we use it to mean to graduate, as in "I passed out of the university in 2005".
The actual meaning of the word (verb) is: To lose consciousness; to distribute (something)
Eg. Four cadets passed out during the parade in the hot sun.

Put up : we sometimes use it to mean to live as in "Where are you put up?" The correct one is "Where do you live"?
However, when we refer to someone staying temporarily, as in a hotel, we may use put up, eg. "We can put you up for the night, but you'll have to vacate tomorrow

English phrases.

Cut a deal : means: to make an agreement; to form a contract.
Example: We cut a deal with Sony and now we handle all of their accounts in Jersey City.


Ball-park figure : means : a rough estimate.
Example: Can you give me a ball-park figure of the capital expenditure on this project so far?