Re: Exposure question

Posted by orejones on March 9, 2006 at 03:00:14

In Reply to: Exposure question posted by Hergest Ridge on March 9, 2006 at 01:52:15:

Good evening Paul,

ThatÂ´s a pretty extreme case: a very dark coloured object, against a highlighted background... WhatÂ´s the brightness ratio betwen both: a few thousand times?

Your cameraÂ´s sensor is not prepared to handle that much information. Fuji was able to somewhat deal with that problem by developing a sensor with two different photodiodes (different sizes, different sensitivity) at each photosite: that approach gives you a big RAW file, with info about highlights and shadows being better handled.

In the good old days of chemical photography, you could get a wide latitude by choosing the right slide film. And, in B/W, you still could go further by choosing the right developer..., none of which are you allowed to do in digiphoto.

If you look at the page in the link, youÂ´ll find a more detailed explanation. DonÂ´t forget to look at the pictures in the "Samples"

Anyhow, RAW files will give you a wider latitude than JPEG. And Photoshop, when properly used, can do some very good things...

Regards

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Follow Ups Full Thread

Topic - Exposure question - Hergest Ridge 01:52:15 03/09/06 (17)

Re: Exposure question - Des 17:13:37 03/26/06 (0)

Everyone seems to be talking about post processing... - EBerlin 19:36:55 03/23/06 (9)

and your point is?... - Joe M 07:04:29 03/25/06 (8)

My message was truncated... - EBerlin 07:48:59 03/25/06 (7)

Re: My message was truncated... - Hergest Ridge 19:31:36 03/25/06 (6)

Re: My message was truncated... - EBerlin 19:43:07 03/25/06 (5)

I teach photography...it's about solving problems in a number of ways - Joe M 20:22:14 03/25/06 (4)

Oh, and by the way... - EBerlin 06:19:23 03/26/06 (0)

Re: I teach photography...it's about solving problems in a number of ways - EBerlin 06:17:49 03/26/06 (2)

And also... - EBerlin 06:20:49 03/26/06 (1)

Don't go away we need people like you here...it creates stimulating discussions, i agree with you, but you & I have diff - Joe M 07:31:20 03/26/06 (0)

Thanks all..nt - Hergest Ridge 00:54:26 03/10/06 (0)

from the chemical daze . . . - Bruce from DC 07:13:52 03/09/06 (0)

I'll answer here- Remember when I mentioned 2 stop neutral density filters to you, this is when you need to use one..... - Joe M 06:34:04 03/09/06 (1)

BTW the 2 stop neutral density filters I use is Graduated from dark to clear - so by turning it up or down - Joe M 09:54:04 03/09/06 (0)

Re; post-processed - Mart 05:10:29 03/09/06 (0)

Re: Exposure question - orejones 03:00:14 03/09/06 (0)

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Re: Exposure question - orejones 03:00:14 03/09/06 (0)

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