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General Discussions and Small Talk

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Objektivsuche a la Kamerasuche bei flickr?

go4java 17.05.15, 17:30

Hallo go4java!
Please in this forum write in English language!
Mauro Tomassetti
Admin Team

Mauro Tomassetti 18.05.15, 15:13

2

1,532 clicks

Image Sharpness Problems

BrianTyler 16.04.15, 21:11

You can easily test your camera and lens for sharpness using a white piece of paper (use a good quality printer paper)
Draw a skinny line with a pencil on the paper.
Photograph it using normal day light, no flash.
Camera on a tripod, vibration reduction set to off.
Open the image using Imager.
I created Imager for my students and it can be downloaded from my web site for free.
http://www.MyCIGroup.com then navigate to Imager.
It is not great looking software but serves the purpose for research!
Open the image and save it to text file.
Open the text file using EXCEL.
Scroll down until you find the Grayscale section. For each pixel there is one number listed.
Find the transition from white to black. It should look something like 175 175 175 70 60 55 55 55 55
This may vary in numbers, which is not important. It all depends on how white the paper is and how dark the line is.
Again, this is not important.
Count the number of pixels it took to transition from white to black. In my example above it took 3 pixels.
This transition is what humans interpret as sharpness or in focus. If it takes 5, 6, 7 pixels to transition, then the image is less sharp. Measure it.
Repeat the test by taking the camera out of autofocus, change aperture, etc. You will soon understand your camera.
A standard 35 mm camera will not transition in 1 pixel, it should be 2 to 3 pixels.

A couple of things to consider, keep the distance just far enough to allow the camera to focus properly. I would say 6 feet. Experiment with zoom settings but don't try to macro the object. That defeats the purpose of the test.

Holger Findling 08.05.15, 04:42

5

1,103 clicks

User experience - what's that?

cc2go 30.04.15, 22:58

Bad design of entire page and menus. User experience can be improved.

- user menu vs. main menu, don't know where to click?!
- when I click something happen, but the page was expecting a hover, come on?!
. everytime I click something, I get the proposal to pay

I thought this is a community for collaboration, exchange and not to earning money!!!

Very disappointed.

cc2go 30.04.15, 22:58

1

906 clicks

April 2015 Monthly Theme - Minimalism

Ken Piros 06.04.15, 01:04

Before the month ends.....

Deleted user 27.04.15, 09:46

32

2,420 clicks

online photoclass

Deleted user 23.04.15, 22:33

Hi Leonid, fine contribution to get a higher level
gr.Rob

Deleted user 25.04.15, 11:56

3

898 clicks

Which shot in 2015?

Anila Jain 02.01.15, 11:16

Emmmmmm i know this but now.......???? :(

_____________
GuL

mamuu45 25.03.15, 12:45

2

1,161 clicks

Funny Pictures to Keep you Laughing All Day

esolz 04.03.15, 14:30

Where do you go looking for hilarious, bone-tickling pictures on the Internet? Well, the big web now has a repository by the name of Madred.org, which stores images of funny moments, some clicked in natural, comical situations, and others beautified with texts and toons to represent humor.

esolz 04.03.15, 14:30

1

896 clicks

February Monthly Theme – Something around the house

Ken Piros 01.02.15, 02:04

William.W61 25.02.15, 05:04

22

1,605 clicks

Giving comments and positive critiques

Deleted user 22.05.14, 10:39

Hi Marshi, if you want help you're always welcome to contact me. No problem for me and when I can help I'll do that
gr.Rob

Deleted user 16.02.15, 21:01

30

2,321 clicks

Bi-Monthly Theme- December 2014 thru January 2015 – “Street

Ken Piros 22.11.14, 15:35

This is my last portrait Ken!
;-)

Mauro Tomassetti 01.02.15, 00:40

24

1,917 clicks

Selfies

Deleted user 07.11.14, 20:47

Hello all! I think this theme should be closed... I was very surprised when in serious scientific journal saw the discussion of this theme with such conclusion. Let be above it. I congratulate all with the Christmas holidays and a Happy New Year! Rob, my best wishes to you and your family...
Gr Elena

_Elena_ 25.12.14, 10:29

11

1,179 clicks

Place for photojournalists and photodocumentarians to publis

dbdonaldson 14.11.14, 09:24

Hello,

I am the publisher of The Speaker, Day Donaldson. We have been publishing some photo document and photo journalism series, and would like to do more of this. If anyone out there is working on a project that is news-/current events-related, please contact me.

A couple of recent articles that turned out pretty well:
http://thespeaker.co/ukraine-tuberculos ... m-dondyuk/
http://thespeaker.co/inside-see-photography-blind/
http://thespeaker.co/gun-buy-back-project-embassy/

Day Blakely Donaldson, TheSpeaker.co, Publisher, publisher@thespeaker.co

dbdonaldson 14.11.14, 09:24

1

995 clicks

Photographer missing in National Park

Ken Piros 28.08.14, 00:29

Hi Ken,

You have share really fantastic photographs, nice work..

approveme 12.11.14, 07:30

3

1,045 clicks

picture vs picture Schafft es dein Bild zur BEST-OF?

sp33d 11.10.14, 15:18

Discussions on the .COM forums in ENGLISH please !!

Admin

Ruud van der Lubben 11.10.14, 17:27

2

949 clicks

New

approveme 06.10.14, 07:19

Hi All,

My name is John, I am new in this forum. I glad to join this community.

approveme 06.10.14, 07:19

1

1,076 clicks

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