Iso sensitivity really work

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shane1980

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Shane dennigan
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Hello,


Just want people's opinions on the pros and conns of turning on iso sensitivity and what settings is there any negative in having it on compared to +s ....
 
You mean Auto-ISO?

Auto-ISO on the D700 is awesome, set you min shutter speed and max ISO and let the camera do the work.
 
Auto ISO is fantastic on the D700. I particularly like it in manual mode where you can select the shutter speed and aperture you want and let the camera balance it all out with the iso. I have usually mine set to min shutter speed of 1/80 (covers most of my focal lengths as it were) and iso 6400 max. I tweak it for the conditions though.

I always turn it off when using a tripod if I want low iso though. I've just set mine so that one of my shooting banks is auto is (handheld) and another is for tripod. If you use the info button it's very quick to swich between shooting banks.
 
Yes I meant auto iso, would it be very bennificial shooting wedding in church....
 
shane1980 said:
I can't imagine pros use it for weddings or would I be incorrect
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why not, if you're shooting in low light and you're set to your lowest apperture setting then you set the slowest shutter you want to go to and let ISO control the exposure, aperture priority is silly in low light as it will just give you crazy long shutter times
 
mrjames said:
why not, if you're shooting in low light and you're set to your lowest apperture setting then you set the slowest shutter you want to go to and let ISO control the exposure
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i wouldnt want to let iso control my exposure.. surely in a dimly lit church the light is constant so manual is best.. if you usee auto iso or any other auto mode the camera can be fooled too easy in such a place..

iN manual wiht auto iso you cant use exposure compensation on some cameras.. you cant on my 1dmkIV
 
KIPAX said:
i wouldnt want to let iso control my exposure.. surely in a dimly lit church the light is constant so manual is best.. if you usee auto iso or any other auto mode the camera can be fooled too easy in such a place..

iN manual wiht auto iso you cant use exposure compensation on some cameras.. you cant on my 1dmkIV
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Would agree with this. If I was in a church and staying fairly stationery with fairly consistent light I'd likely just set my exposure at the start of proceedings and leave it there. Maybe check the histogram every once in a while to be sure.
 
KIPAX said:
i wouldnt want to let iso control my exposure.. surely in a dimly lit church the light is constant so manual is best.. if you usee auto iso or any other auto mode the camera can be fooled too easy in such a place..

iN manual wiht auto iso you cant use exposure compensation on some cameras.. you cant on my 1dmkIV
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erm, I should probably point out that the only variables for exposure are shutter, aperture and iso- so if you're in manual exposure mode and lock the shutter and aperture to say 1/80 f2.8 you're left only with ISO to control the exposure...
if the light is constant then yeah sure set the iso too and then your exposure compesation is just flicking your ISO up or down a stop.

but if the light is changing then I think auto ISO is the way that works for me, better to overexpose and darken in post than the other way round, rarely will you blow highlights in dim light.
 
mrjames said:
erm, I should probably point out that the only variables for exposure are shutter, aperture and iso- so if you're in manual exposure mode and lock the shutter and aperture to say 1/80 f2.8 you're left only with ISO to control the exposure...
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OBVIOUSLY!

mrjames said:
if the light is constant then yeah sure set the iso too and then your exposure compesation is just flicking your ISO up or down a stop.
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haha your totally lost now arnt you :) we are talking about auto iso... so please tell me how you can compensate if its on auto ? :)
 
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Bloody hell Tony,your in a foul mood.............:D

OP......Auto ISO, use it for 90% of what I shoot on my D700 and 300, superb tool,so use it..............:thumbs:
 
fracster said:
Bloody hell Tony,your in a foul mood.............:D

OP......Auto ISO, use it for 90% of what I shoot on my D700 and 300, superb tool,so use it..............:thumbs:
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am not! and I am right arnt I :)

so do you use auto iso in manual and if so how do you compensate? mine in manual will not compensate as the shutter and aperture is set so auto iso is left to do what it likes...not good in some situations.. you should always have a compensate option..

i use auto iso... but i use it in shutter priority with a trick :)

so if i want a 500 shutter at f2.8 i use shutter priority to set the shutter.. go deep into settings and set max/min aperture to f2.8 and set auto iso on.. this way shutter and aperture set same as in manual.. auto iso is on and i still get the exposure comensation option :)
 
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KIPAX said:
am not!

so do you use auto iso in manual an dif so how do you compensate? mine in manual will not compensate as the shutter and aperture is set so auto iso is left to do what it likes...not good in some situations.. you should always have a compensate option..

i use auto iso... but i use it in shutter priority with a trick :)

so if i want a 500 shutter at f2.8 i use shutter priority to set the shutter.. go deep into settings and set max/min aperture to f2.8 and set auto iso on.. this way shutter and apoerture set same as in manual.. auto iso is on and i still gte the exposure comensation option :)
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Buy a D700 and find out..............:p
 
KIPAX said:
am not! and I am right arnt I :)

so do you use auto iso in manual and if so how do you compensate? mine in manual will not compensate as the shutter and aperture is set so auto iso is left to do what it likes...not good in some situations.. you should always have a compensate option..

i use auto iso... but i use it in shutter priority with a trick :)

so if i want a 500 shutter at f2.8 i use shutter priority to set the shutter.. go deep into settings and set max/min aperture to f2.8 and set auto iso on.. this way shutter and aperture set same as in manual.. auto iso is on and i still get the exposure comensation option :)
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On Nikon, you simply dial in exposure compensation and in manual mode, it'll take up the slack with the auto iso. So if you're shooting manual, 1/500 and F2.8 with auto iso on. With no exposure compensation dialled in, the camera might choose ISO 200. If you then dial in +1ev, the camera will select 400 iso, all else being equal. Pretty handy! In a church though, I'd still want the predictability of setting a fixed exposure and leaving it there until something changes. You never know what is going to confuse the meter.
 
gad-westy said:
On Nikon, you simply dial in exposure compensation and in manual mode, it'll take up the slack with the auto iso. So if you're shooting manual, 1/500 and F2.8 with auto iso on. With no exposure compensation dialled in, the camera might choose ISO 200. If you then dial in +1ev, the camera will select 400 iso, all else being equal.
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One up for nikon then.. I dont know about other canon models but my canon 1dmkIV which is high up there :) cannot offer me exposure compensation in manual mode with auto iso ...your stuck to what exposure the camera wants to use and absoloutly no control... its probably the worse mode you can be in.. hence my work around that mimicks what you can do in manual then :)






gad-westy said:
Pretty handy! In a church though, I'd still want the predictability of setting a fixed exposure and leaving it there until something changes. You never know what is going to confuse the meter.
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same here... i do use it for situations i encounter with extreme dark light situations that happens quicker than i can dial anything in... football players running from bright sunlight into dark shadows and back out again.. that sort of thing..

indoors i would personally prefer manual control of the exposure.
 
KIPAX said:
OK :)
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First off,let me say that it is very rare I shoot manual.

Say i`m shooting peregrines in flight, pretty fast subject. So I need big shutter speed. I set the camera in aperture priority, F8 normally,go into the menu and set a minimum shutter speed off 2000 and a max of 6400 ISo.The camera keeps the shutter speed at 2000 and changes the ISO to keep that shutter speed. nOW i CAN CHANGE THE APERTURE IF i WANT,sorry capslock,and the camera will still try to attain that shutter speed. If the shutter speed at 6400 is les than 2000, it drops the shutter speed.

Because I have a subject against a geerally brighter background, I simply dial in say +1 or +2 exp compo, the camera takes that into account and keeps the shutter speed up.
 
fracster said:
F8 normally,go into the menu and set a minimum shutter speed off 2000 and a max of 6400 ISo.The camera keeps the shutter speed at 2000 and changes the ISO to keep that shutter speed. nOW i CAN CHANGE THE APERTURE IF i WANT,sorry capslock,and the camera will still try to attain that shutter speed. If the shutter speed at 6400 is les than 2000, it drops the shutter speed.

Because I have a subject against a geerally brighter background, I simply dial in say +1 or +2 exp compo, the camera takes that into account and keeps the shutter speed up.
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its a workround.. like mine.. your letting auto iso do some work but your setting limitations and you also have compensation for when you think its failing..

which is a far cry from manual and auto iso doing everything for the exposure..
 
KIPAX said:
its a workround.. like mine.. your letting auto iso do some work but your setting limitations and you also have compensation for when you think its failing..

which is a far cry from manual and auto iso doing everything for the exposure..
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Indeed, it is all guesswork really..........:)
 
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