Tuesday, 28 September 2010

Plenoptic Lenses

Plenoptic Lens is a lens that is composed of loads of tiny “sub-lenses,” which allow you to record an image from multiple focus planes all at the same time. The result is that you get so much data in your image that it can all add up to create an “infinite” depth of field. With an image taken with a Plenoptic Lens you can choose the distance at which you want your image to be focused after you have taken it! These plenoptic lenses fit between your camera’s usual lens and its sensor. Once you have taken your image with this lens Adobe have written the software that will allow you to choose your focus, this means that you may never need to take an out of focus image again, unless of course that’s what you choose.

It was Science Fiction now it is True Science
To have a better idea on what we are talking about , please watch this Video

Full Details and the Reference Link is h3r3

Thursday, 8 April 2010

Depth of Field Calculator

If you need a Depth of Field Calculator, you can check this Site 
It has a very good Depth of Field Calculator (DOf) for almost all Camera (Nokin, Canon , Fuji, Lecia)
it takes few inputs as
1) Distance
2) F-stop
3) Focal Length

and the output on the below form

Subject distance       10 m

Depth of field
Near limit      4.87 m
Far limit      Infinity
Total      Infinite

In front of subject      5.1 m
Behind subject      Infinite

Hyperfocal distance      9.51 m
Circle of confusion      0.02 mm


Wednesday, 31 March 2010

How to open NEF RAW files using Open Source ?

This Post describes how you can process/open your Digital Camera RAW Files using Open Source Application. In Particular this post will show to open NIKON RAW NEF files using Open Source application such UFRAW and GIMP.

The details in this post applies to different Operating System Starting from Linux, Mac and ends with MS-Windows. and Different DSLR manufactures as Nikon, Canon , Pentax.

the steps are simple
a) install GIMP
b) install UFRAW

This is it, now you are able to open your Nikon or Canon RAW NEF files, and you still can edit them using GIMP, applying whatever filters and so on.

1) UFRAW is an Open Source Software that support Many RAW format , in my example it open and process Nikon RAW NEF files. and add a plugin to your GIMP 2.0+ installation that allows you directly open and process Nikon RAW NEF and all using Open Source applications.
UFRAW web page is h3r3
UFRAW download Link is h3r3

The well known Open Source Photo editing software
GIMP could be found h3r3

This Link is from other Open Source Related Blog Geek2live , link is h3r3

All Photos are under Creative Commons ver 3.0

All photos in this blog are taken by me, and I have the sole rights. All contents including photos are licensed under Creative Commons ver 3.0



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