Author Topic: Metering / Exposing question  (Read 2190 times)

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Offline KAP

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Metering / Exposing question
« on: August 18, 2010, 01:40:08 AM »
I deleted this - I did not get one single reply.... Thanks.
« Last Edit: August 19, 2010, 02:04:37 AM by KAP »
Gear:  Sony Alpha 350, 77 with a variety of Minolta and Sony lenses.

Offline zekewhipper

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Re: Metering / Exposing question
« Reply #1 on: August 19, 2010, 04:51:48 AM »
What was the question?  You're probably going to have to let more than 28 people look at it before you get an answer.  Some folks can have things up for a few days or even weeks before getting a response.  It just depends on what the issue is.
« Last Edit: August 19, 2010, 04:55:04 AM by zekewhipper »
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Offline Rob aka [minolta mad]

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Re: Metering / Exposing question
« Reply #2 on: August 20, 2010, 07:56:45 PM »
Perhaps there is a reason why you didnt get a response ???
Having not seen the question, we'll never know.
Just because 28 people viewed the question, doesnt mean to say that that any of them were members, or felt that they were experienced enough to give an answer.


Offline dynax dingbat

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Re: Metering / Exposing question
« Reply #3 on: August 21, 2010, 01:12:51 PM »
I think this was about metering a white and orange butterfly and not burning out the white.
If this is so the questioner also said he could adjust for whites in other situations.

My guess would be to spot meter the white area and perhaps close the aperture say an extra 1/2 stop. 
I think if you are taking in RAW format most other things could be sorted in P'shop.

I would be interested in a more informed answer though.


Offline Clive

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Re: Metering / Exposing question
« Reply #4 on: August 21, 2010, 03:53:33 PM »
KAP .. perhaps ask again. As noted, many of us have limited "air time" in summer. ;)

If it was as digital dingbat stated then consider M mode. See here. The image is missing, but is of a bald eagle. See here.

As photogenic as Lincoln (the 'iggle') is, exposures are difficult. So I just set the camera on (say) f7.1 in A mode, and take a picture of a neutral area (like grass in the same light) and see what the speed ended up as. (This area HAS to be in the same light as the subject!!) THEN I set the camera to M mode and duplicate the speed and aperture in M. That ensures good exposures on the white .. if it is off a tad I can changed the speed or aperture as needed. This is the only way to do this as subjects with some white can throw the metering off. With the camera set in M mode this way, AS LONG AS THE LIGHT DOES NOT CHANGE, I can take oodles of pictures and the exposures will be good no matter where the metering point is set in the the meter is "turned off it does not matter. 

Maybe that was not the question...


« Last Edit: August 21, 2010, 03:55:36 PM by Clive »
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Offline Bigbreakfast

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Re: Metering / Exposing question
« Reply #5 on: August 21, 2010, 05:31:21 PM »
Whilst Clive is correct in every way the anwser to the question was actually ...............

Two things are infinite: the universe and human stupidity; and I'm not sure about the universe. Albert Einstein
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Offline FarmerDave

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Re: Metering / Exposing question
« Reply #6 on: August 21, 2010, 06:05:55 PM »
If that was the question I vaguely remember the 18% gray card answer, but thought it would be too "stock" an answer to post. We came across this before and now I bought myself a neutral gray card to keep in my camera bag so I could include a shot with the gray card for later reference. It might scare the butterfly away though so I am not sure that would be the answer.
Spot metering on the main subject was my other answer.
I am afraid Sony Alpha is still a rarity so message board like this is very deep but require a bit of patience.