Comments on: Understanding ISO – A Beginner’s Guide

By: zdenka

zdenka — Sun, 05 Feb 2012 17:44:09 +0000

Hi Nasim
Your descriptions are so great. The best I ever read.
I am learning how to take portraits photos, and I tried everything includes high key lightning, but I still get shadow behind the subject. Only way i don’t have a shadow is when my camera is in horizontal position, or when i turn the external flash bounds over the wall. But I am editing the photos and I need crispy clear photos for that and without the flash directly to the subject I won’t get crispy clear photo even if I use ISO 100. What else I need to do to have a crispy clear photo with no shadow behind the subject and be able to use the direct flash? I set the lights so many ways and nothing is working.
And I also would like to ask if it’s ok to have some shadow behind or if there is a shadow you know that amateur took the photo???
Thanky ou for your answer.

By: ramy

ramy — Fri, 03 Feb 2012 16:54:16 +0000

Nasim, I have a question about exposure settings and usage of flash.
If for any reason, I find that my live picture is a little dark then does it make sense to simply use a flash to brighten it or should I use my exposure settings (EV) to increase the brightness? Which setting makes it more practical to use? I am not able to figure out.
Also it would be great if you could throw some light on ‘Analysis of histograms’ by means of an article later on.
Thanks

By: zdenka

zdenka — Fri, 20 Jan 2012 19:02:18 +0000

Hi, this is an amazing explanation. I am a beginner in photography and after your explanation I understand it the best. :-) Thanks

By: Sid

Sid — Wed, 18 Jan 2012 15:03:05 +0000

Simply excellent. Thank you for having this website and sharing your valuable knowledge and keeping it simple.

By: Jeff

Jeff — Sun, 15 Jan 2012 03:34:02 +0000

Love your work Nassim, the way you explain everything is so simple and concise!! Thanks!!!

By: Ken Nolasco

Ken Nolasco — Thu, 05 Jan 2012 11:50:54 +0000

Hi!

Can High ISO damage my CMOS Image sensor?

because I read that high ISO makes your sensor more sensitive to light…
will that damage or shorten the life span of my camera sensor? or am I just paranoid?

By: ramesh

ramesh — Wed, 04 Jan 2012 05:28:21 +0000

You have a great site for beginners, Mr. Mansurov. The fact that u read and respond to comments is much appreciated.
A couple of doubts:
a) In the picture “Oh No! It’s a GHOST ATTACK!” you have stated that the lowest ISO (presumably 100) resulted in a long exposure of 5 seconds. Why is the exposure so long?? What were the lighting conditions like? From the picture, it appears that there was some light source present. Aperture? No flash, I assume.
b) Is the ‘ghost’ a result of motion blur?
c) Would it be possible for you include some more pictures with brief description such as ISO, Aperture. SS, lighting condition? That would provide beginners invaluable insight

By: Muhammed Thasneem

Muhammed Thasneem — Mon, 02 Jan 2012 06:14:47 +0000

This article is very helpful for me……I am very happy to read this…coz I always made the problem on ISO settings…Now I understood about ISO….Once again …thank you very much……

By: april

april — Thu, 29 Dec 2011 11:14:06 +0000

thank you. God bless
i have learned a lot

By: Ishti

Ishti — Thu, 29 Dec 2011 02:24:12 +0000

Hi Nasim,

After reading your post, I was playing with my D90′s auto ISO feature. I have a concern, though.
Let’s say, I turn auto ISO ‘ON’ and select maximum ISO 800 and minimum shutter speed 1/60. Then I come across a situation where I want to use higher or lower ISO only for that one shot. Is there any way to change ISO manually? I found out when I set auto ISO to 800, I am not able to change ISO anymore. If I manually change it to 3200, auto ISO still kicks in and camera still takes shot at 800. I tried A, P and M mode.

Thanks in advance :)